@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&family=Noto+Sans+SC:wght@300;400;500;600;700&display=swap');

:root {
    /* 主色调 - 更现代的蓝紫色系 */
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --primary-light: #a5b4fc;
    --secondary-color: #f8fafc;
    --accent-color: #06b6d4;
    --accent-hover: #0891b2;
    
    /* 背景色系 - 更柔和的深色主题 */
    --dark-bg: #0f172a;
    --panel-bg: #1e293b;
    --panel-bg-light: #334155;
    --card-bg: #1e293b;
    --input-bg: #0f172a;
    
    /* 文字色系 - 增强对比度 */
    --text-color: #f1f5f9;
    --text-color-secondary: #cbd5e1;
    --text-color-muted: #94a3b8;
    --text-color-disabled: #64748b;
    
    /* 边框和分割线 */
    --border-color: #334155;
    --border-color-light: #475569;
    --divider-color: #1e293b;
    
    /* 状态色系 */
    --success-color: #10b981;
    --success-light: #34d399;
    --error-color: #ef4444;
    --error-light: #f87171;
    --warning-color: #f59e0b;
    --warning-light: #fbbf24;
    --info-color: #3b82f6;
    --info-light: #60a5fa;
    
    /* 字体系统 */
    --font-family-main: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-family-mono: 'JetBrains Mono', 'Courier New', monospace;
    --font-family-title: 'Inter', 'Noto Sans SC', sans-serif;
    
    /* 消息气泡色系 */
    --ai-message-bg: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    --player-message-bg: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    --system-message-color: var(--accent-color);
    
    /* 阴影系统 */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-strong: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-light: var(--shadow-md);
    
    /* 圆角系统 */
    --border-radius-xs: 2px;
    --border-radius-sm: 4px;
    --border-radius-md: 6px;
    --border-radius-lg: 8px;
    --border-radius-xl: 12px;
    --border-radius-2xl: 16px;
    --border-radius-main: var(--border-radius-lg);
    --border-radius-small: var(--border-radius-sm);
    
    /* 间距系统 */
    --spacing-xs: 4px;
    --spacing-sm: 6px;
    --spacing-md: 10px;
    --spacing-lg: 12px;
    --spacing-xl: 16px;
    --spacing-2xl: 20px;
    --spacing-3xl: 24px;
    
    /* 其他 */
    --avatar-size: 40px;
    --transition-fast: 0.15s ease-out;
    --transition-normal: 0.25s ease-out;
    --transition-slow: 0.35s ease-out;
}

/* 隐藏楼层：横幅与气泡隐藏样式 */
.hidden-floors-banner {
    position: sticky;
    top: 0;
    z-index: 5;
    width: 100%;
    margin-bottom: var(--spacing-sm);
    padding: 6px 10px;
    background: var(--panel-bg);
    color: var(--text-color-muted);
    border: 1px dashed var(--border-color);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    opacity: 0;
    transform: translateY(-6px);
    transition: opacity 160ms ease, transform 160ms ease;
    pointer-events: none;
}

.hidden-floors-banner.visible {
    opacity: 1;
    transform: translateY(0);
}

.message-bubble.hidden-by-floor {
    display: none !important;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

*::before,
*::after {
    box-sizing: border-box;
}

/* 页面加载动画 */
@keyframes pageLoad {
    0% {
        opacity: 0;
        transform: translateY(20px);
        filter: blur(10px);
    }
    50% {
        opacity: 0.7;
        transform: translateY(10px);
        filter: blur(5px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
        filter: blur(0);
    }
}

@keyframes containerSlideIn {
    0% {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes pulseGlow {
    0%, 100% {
        box-shadow: var(--shadow-lg);
    }
    50% {
        box-shadow: var(--shadow-xl), 0 0 20px rgba(99, 102, 241, 0.3);
    }
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes contentFadeIn {
    0% {
        opacity: 0;
        transform: translateY(15px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes statusUpdate {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

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

.loading {
    animation: spin 1s linear infinite;
}

.typing-indicator {
    display: inline-block;
    animation: typingIndicator 1.4s ease-in-out infinite;
}

body {
    font-family: var(--font-family-main);
    background: linear-gradient(135deg, var(--dark-bg) 0%, #1a202c 100%);
    color: var(--text-color);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
    padding: var(--spacing-xl);
    overflow-x: hidden;
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    animation: pageLoad 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.main-settings-toggle-btn {
    position: fixed;
    top: var(--spacing-xl);
    left: var(--spacing-xl);
    z-index: 1001;
    background: var(--panel-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
    backdrop-filter: blur(8px);
}
.main-settings-toggle-btn:hover {
    background: var(--primary-color);
    transform: translateY(-2px) scale(1.05);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
}
.main-settings-toggle-btn:active {
    transform: translateY(0) scale(0.98);
}
.main-settings-toggle-btn svg {
    width: 24px;
    height: 24px;
    fill: currentColor;
    transition: fill var(--transition-fast);
}

.game-container {
    width: 100%;
    max-width: 1400px;
    height: calc(100dvh - 40px);
    background: var(--card-bg);
    border-radius: var(--border-radius-2xl);
    box-shadow: var(--shadow-strong);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: var(--spacing-3xl);
    backdrop-filter: blur(20px);
    position: relative;
    overflow: visible;
}

.game-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-light), transparent);
    opacity: 0.6;
}

.game-title-header {
    text-align: center;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
    position: relative;
}

/* 提示词组合区域样式 */
.prompt-combo-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 4px var(--spacing-xs);
    background: var(--panel-bg-light);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    flex-wrap: nowrap;
}

.combo-label {
    font-size: 0.875rem;
    color: var(--text-color);
    white-space: nowrap;
    font-weight: 500;
}

.combo-select {
    min-width: 140px !important;
    max-width: 180px !important;
    width: auto !important;
    background: var(--card-bg) !important;
    color: var(--text-color) !important;
    border: 1px solid var(--border-color) !important;
    padding: var(--spacing-xs) var(--spacing-sm) !important;
    border-radius: var(--border-radius-md) !important;
    font-size: 0.875rem !important;
    transition: var(--transition-normal) !important;
    box-shadow: var(--shadow-sm);
}

.combo-select:focus {
    border-color: var(--accent-color) !important;
    box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.1), var(--shadow-sm) !important;
    background: var(--input-bg) !important;
}

.combo-select:hover {
    border-color: var(--border-color-light) !important;
    background: var(--input-bg) !important;
}

.btn-combo {
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color)) !important;
    color: var(--text-color) !important;
    border: 1px solid var(--border-color) !important;
    padding: var(--spacing-xs) var(--spacing-sm) !important;
    font-size: 0.875rem !important;
    min-height: 32px !important;
    white-space: nowrap;
}

.game-title-header::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 1px;
}



.header-actions {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xs);
    flex-wrap: wrap;
}

.header-actions h1 {
    margin: 0;
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: 600;
    white-space: nowrap;
}

.game-main-interface {
    display: flex;
    flex-direction: row;
    flex-grow: 1;
    overflow: hidden;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    min-height: 0; /* 允许子容器按需收缩并在内部滚动 */
}

.dialogue-area {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden; 
    min-width: 0;
    min-height: 0;
}

.game-output {
    flex-grow: 1;
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    position: relative;
    animation: contentFadeIn 0.5s ease-out;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
}

.game-output::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 20px;
    background: linear-gradient(to bottom, var(--input-bg), transparent);
    pointer-events: none;
    z-index: 1;
}

.game-output::-webkit-scrollbar {
    width: 6px;
}

.game-output::-webkit-scrollbar-track {
    background: transparent;
}

.game-output::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

.game-output::-webkit-scrollbar-thumb:hover {
    background: var(--border-color-light);
}

.status-bar-area {
    width: 400px;
    flex-shrink: 0;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    position: relative;
    scroll-behavior: smooth;
}

.status-bar-area::before {
    content: '';
    position: absolute;
    top: 0;
    left: var(--spacing-lg);
    right: var(--spacing-lg);
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
    opacity: 0.3;
    background-size: 200% 100%;
    animation: statusUpdate 2s linear infinite;
}

.status-bar-title {
    font-family: var(--font-family-title);
    color: var(--accent-color);
    font-size: 1.2em;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    flex-shrink: 0;
    letter-spacing: -0.01em;
}

.status-bar-content {
    font-family: var(--font-family-mono);
    font-size: 0.85em;
    line-height: 1.5;
    white-space: pre-wrap;
    word-wrap: break-word;
    color: var(--text-color-secondary); 
    flex-grow: 1;
    overflow-y: auto;
    padding: var(--spacing-sm) 0;
    animation: contentFadeIn 0.4s ease-out;
    scroll-behavior: smooth;
}

.status-bar-content::-webkit-scrollbar {
    width: 4px;
}

.status-bar-content::-webkit-scrollbar-track {
    background: transparent;
}

.status-bar-content::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 2px;
}

.input-container {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    align-items: flex-end;
    flex-shrink: 0;
    background: var(--card-bg);
    border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
    position: relative;
}
.input-actions-row {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    justify-content: flex-start;
}
.input-actions-row .btn { width: auto; }
.input-actions-row #sendButton { width: auto; }
.input-actions-row #cancelButton { width: auto; }
.input-actions-row #uploadButton { width: auto; }

.input-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
    opacity: 0.2;
}

.input-area-wrapper {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.input-actions-container {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.input-actions-container .btn {
    flex-grow: 1;
    min-width: 0;
}

#playerInput {
    flex-grow: 1;
    resize: none;
    min-height: 40px;
    max-height: 150px;
    line-height: 1.5;
    overflow-y: auto;
}

@keyframes messageSlideIn {
    0% {
        opacity: 0;
        transform: translateY(30px) scale(0.9);
        filter: blur(5px);
    }
    50% {
        opacity: 0.7;
        transform: translateY(10px) scale(0.95);
        filter: blur(2px);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
        filter: blur(0);
    }
}

.message-timestamp {
    font-size: 0.75rem;
    color: var(--text-color-muted);
    margin-top: var(--spacing-sm);
    text-align: right;
    opacity: 0.6;
    font-family: var(--font-family-mono);
    font-weight: 400;
    letter-spacing: 0.5px;
    transition: var(--transition-fast);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(0, 0, 0, 0.05);
    border-radius: var(--border-radius-sm);
    backdrop-filter: blur(5px);
}

.message-timestamp:hover {
    opacity: 0.9;
    background: rgba(0, 0, 0, 0.1);
}

.message-bubble {
    max-width: 85%;
    position: relative;
    display: flex;
    flex-direction: column;
    margin-bottom: var(--spacing-md);
    animation: messageSlideIn 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    transition: var(--transition-normal);
}

.message-bubble::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, rgba(255,255,255,0.2), rgba(255,255,255,0.05));
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    pointer-events: none;
}

.message-bubble:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.avatar-image {
    width: var(--avatar-size);
    height: var(--avatar-size);
    border-radius: 50%;
    object-fit: cover;
    background-color: var(--border-color);
    border: 1px solid rgba(255,255,255,0.1);
    flex-shrink: 0;
}

.message-header {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 4px;
}

.character-name {
    font-weight: bold;
    font-size: 0.9em;
    color: var(--text-color-muted);
}

.floor-number {
    font-size: 0.8em;
    color: var(--text-color-muted);
    margin-left: 4px;
}

.summary-badge {
    display: inline-block;
    padding: 2px 6px;
    font-size: 0.72em;
    line-height: 1;
    color: var(--text-color-muted);
    background: rgba(0,0,0,0.06);
    border: 1px solid var(--border-color);
    border-radius: 999px;
    margin-left: 6px;
}

.message-bubble.player-message .summary-badge {
    color: #fff;
    background: rgba(255,255,255,0.15);
    border-color: rgba(255,255,255,0.25);
}

.message-content-wrapper {
    width: 100%;
    padding: var(--spacing-lg) var(--spacing-xl);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-md);
    line-height: 1.5;
    font-size: 0.9375rem;
    word-wrap: break-word;
    min-width: 0;
    display: flex;
    flex-direction: column;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.message-text {
    white-space: pre-wrap;
    display: block;
}
.message-text strong {
    font-weight: bold;
    color: inherit;
}
.message-text a {
    color: var(--accent-color);
    text-decoration: none;
    border-bottom: 1px dotted var(--accent-color);
}
.message-text a:hover {
    color: var(--secondary-color);
    border-bottom-style: solid;
}

/* 推理内容折叠样式 */
.think-collapsible {
    margin-top: var(--spacing-sm);
    border-top: 1px dashed var(--border-color);
    padding-top: var(--spacing-sm);
}
.think-toggle {
    background-color: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: var(--text-color-secondary);
    cursor: pointer;
    font-size: 0.75em;
    padding: 4px 8px;
    border-radius: var(--border-radius-small);
    transition: background-color 0.2s, color 0.2s, border-color 0.2s;
}
.think-toggle:hover {
    background-color: rgba(255, 255, 255, 0.24);
}
.think-content {
    margin-top: var(--spacing-xs);
    background: var(--panel-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-sm);
    font-family: var(--font-family-mono);
    font-size: 0.85em;
    white-space: pre-wrap;
    word-break: break-word;
    overflow-wrap: anywhere;
    color: var(--text-color-secondary);
}

.message-content-wrapper .model-name {
    display: block;
    font-size: 0.75em; 
    color: var(--text-color-muted);
    font-style: italic;
    margin-top: 6px; 
    margin-bottom: 4px; 
    word-break: break-all;
}
.ai-message .message-content-wrapper .model-name {
    text-align: left; 
}

.message-bubble.player-message {
    align-self: flex-end;
}
.message-bubble.player-message .message-header {
    flex-direction: row-reverse;
}
.message-bubble.player-message .message-content-wrapper {
    background: linear-gradient(135deg, var(--accent-color), var(--accent-hover));
    color: white;
    position: relative;
    overflow: hidden;
}

.message-bubble.player-message .message-content-wrapper::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: left 0.6s ease;
}

.message-bubble.player-message:hover .message-content-wrapper::before {
    left: 100%;
}

.message-bubble.ai-message {
    align-self: flex-start;
}
.message-bubble.ai-message .message-content-wrapper {
    background: linear-gradient(135deg, var(--card-bg), var(--panel-bg-light));
    color: var(--text-color);
    border: 1px solid var(--border-color);
    position: relative;
}

.message-bubble.ai-message .message-content-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--accent-color), var(--accent-hover));
    border-radius: 0 var(--border-radius-sm) var(--border-radius-sm) 0;
}

.message-bubble.system-message {
    font-style: italic;
    color: var(--system-message-color);
    text-align: center;
    background-color: transparent;
    border: none;
    box-shadow: none;
    padding: 8px 0;
    align-self: center;
    width: 100%;
    max-width: 100%;
    border-radius: 0;
    font-size: 0.9em;
    display: block;
}
.message-bubble.system-message.error {
    color: var(--error-color);
    font-weight: bold;
}
.message-bubble.system-message.warning {
    color: var(--warning-color);
}

.message-bubble.system-message.summary-reset {
    color: var(--warning-color);
    font-weight: 500;
    border-left: 3px solid var(--warning-color);
    padding-left: 10px;
    margin: 5px auto;
    text-align: left;
    background-color: rgba(240, 173, 78, 0.08);
}

.message-bubble.system-message.summary-notification {
    color: var(--accent-color);
    font-size: 0.85em;
    border-left: 3px solid var(--accent-color);
    padding-left: 10px;
    margin: 5px auto;
    text-align: left;
    background-color: rgba(168, 218, 220, 0.05); 
}
.message-bubble.system-message.summary-notification.error {
    color: var(--error-color);
    border-left-color: var(--error-color);
    background-color: rgba(230, 57, 70, 0.05);
}

.message-bubble.system-message.summary-notification.warning {
    color: var(--warning-color);
}

/* 媒体内容样式 */
.message-media-container {
    margin-top: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.message-image {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition-normal);
    object-fit: contain;
}

.message-image:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-lg);
}

.message-video {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    background: var(--panel-bg);
}

.message-video:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* 响应式媒体布局 */
@media (min-width: 768px) {
    .message-media-container {
        flex-direction: row;
        flex-wrap: wrap;
        gap: var(--spacing-lg);
    }
    
    .message-image,
    .message-video {
        max-width: calc(50% - var(--spacing-lg) / 2);
        min-width: 200px;
    }
    
    .message-media-container > *:only-child {
        max-width: 100%;
    }
}

@media (min-width: 1024px) {
    .message-image,
    .message-video {
        max-width: calc(33.333% - var(--spacing-lg) * 2 / 3);
    }
}

/* 媒体加载状态 */
.message-image[loading="lazy"] {
    background: linear-gradient(90deg, var(--panel-bg) 25%, var(--panel-bg-light) 50%, var(--panel-bg) 75%);
    background-size: 200% 100%;
    animation: loadingShimmer 1.5s infinite;
}

@keyframes loadingShimmer {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}
    color: var(--warning-color);
    border-left-color: var(--warning-color);
    background-color: rgba(240, 173, 78, 0.05);
}

.message-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 8px;
}
.player-message .message-actions {
    justify-content: flex-end;
}
.ai-message .message-actions {
    justify-content: flex-start;
}

.message-actions button {
    background-color: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: var(--secondary-color);
    cursor: pointer;
    font-size: 0.7em;
    font-weight: 500;
    padding: 4px 8px;
    border-radius: var(--border-radius-small);
    transition: background-color 0.2s, color 0.2s, border-color 0.2s;
    text-transform: none;
}
.message-actions button:hover {
    background-color: rgba(255, 255, 255, 0.3);
    border-color: rgba(255,255,255,0.4);
}

.editing-message .message-text,
.editing-message .message-actions,
.editing-message .model-name {
    display: none !important;
}

.editing-message textarea.edit-textarea {
    display: block;
    width: 100%;
    box-sizing: border-box;
    margin-bottom: 8px;
    background-color: #3c3c3c;
    color: var(--text-color);
    border: 1px solid #555;
    padding: 8px;
    font-size: 0.9em;
    font-family: var(--font-family-main);
    line-height: 1.5;
    border-radius: var(--border-radius-small);
    resize: vertical;
    overflow-y: auto;
    min-height: 120px;
    max-height: 420px;
    height: auto;
    word-break: normal;
    overflow-wrap: break-word;
}

/* 编辑模式下扩展气泡与文本域宽度（桌面与移动兼容） */
.editing-message {
    max-width: 100%;
    width: 100%;
    align-self: stretch;
}
.editing-message .message-content-wrapper {
    width: 100%;
}
.message-bubble.ai-message.editing-message .message-content-wrapper::after {
    display: none;
}

@media (max-width: 1024px) {
    .editing-message {
        max-width: 100%;
        width: 100%;
        align-self: stretch;
    }
    .editing-message .message-content-wrapper {
        padding: var(--spacing-md) var(--spacing-lg);
    }
}

@media (max-width: 640px) {
    .editing-message {
        max-width: 100%;
        width: 100%;
        align-self: stretch;
    }
    .editing-message .message-content-wrapper {
        padding: var(--spacing-md);
    }
    .editing-message textarea.edit-textarea {
        max-width: 100%;
        font-size: 0.95em;
    }
}

.editing-message .edit-controls {
    display: flex;
    gap: 8px;
    justify-content: flex-start;
    margin-top: 0px;
}
.player-message.editing-message .edit-controls {
    justify-content: flex-end;
}
.ai-message.editing-message .edit-controls {
    justify-content: flex-start;
}

.editing-message .edit-controls button {
    font-size: 0.75em;
    padding: 5px 10px;
}
.edit-controls .save-edit-btn {
    background-color: var(--success-color);
    color: white;
    border: none;
}
.edit-controls .cancel-edit-btn {
    background-color: #6c757d;
    color: white;
    border: none;
}
.edit-controls .save-edit-btn:hover { background-color: #409143; }
.edit-controls .cancel-edit-btn:hover { background-color: #5a6268; }

input[type="text"],
input[type="password"],
input[type="number"],
select, 
textarea {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    background: var(--input-bg);
    color: var(--text-color);
    font-family: var(--font-family-main);
    font-size: 0.875rem;
    transition: var(--transition-normal);
    min-height: 40px;
    line-height: 1.5;
    box-sizing: border-box;
}
/* 输入框聚焦动画 */
@keyframes inputFocus {
    0% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(6, 182, 212, 0.4);
    }
    50% {
        transform: scale(1.02);
        box-shadow: 0 0 0 8px rgba(6, 182, 212, 0.2);
    }
    100% {
        transform: scale(1);
        box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.1);
    }
}

@keyframes buttonPress {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(0.95);
    }
    100% {
        transform: scale(1);
    }
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="number"]:focus,
select:focus, 
textarea:focus {
    border-color: var(--accent-color);
    animation: inputFocus 0.3s ease-out;
    box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.1), var(--shadow-sm);
    outline: none;
    background: var(--card-bg);
}
input[type="text"]:hover,
input[type="password"]:hover,
input[type="number"]:hover,
select:hover, 
textarea:hover {
    border-color: var(--border-color-light);
}
input[type="text"]:disabled,
input[type="password"]:disabled,
input[type="number"]:disabled,
select:disabled, 
textarea:disabled {
    background: var(--panel-bg-light);
    color: var(--text-color-disabled);
    cursor: not-allowed;
    opacity: 0.6;
}
.form-group { margin-bottom: 15px; }
.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
    color: var(--text-color-muted);
    font-size: 0.9em;
}

.form-group-flex {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 52px;
    height: 28px;
}
.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}
.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--border-color);
    transition: var(--transition-normal);
    border-radius: 28px;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.1);
}
.toggle-slider:before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 3px;
    bottom: 3px;
    background: linear-gradient(135deg, #ffffff, #f8f9fa);
    transition: var(--transition-normal);
    border-radius: 50%;
    box-shadow: var(--shadow-sm);
}
input:checked + .toggle-slider {
    background: linear-gradient(135deg, var(--accent-color), var(--accent-hover));
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.2), 0 0 0 2px rgba(6, 182, 212, 0.2);
}
input:focus + .toggle-slider {
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.15), 0 0 0 2px rgba(6, 182, 212, 0.3);
}
input:checked + .toggle-slider:before {
    transform: translateX(24px);
    box-shadow: var(--shadow-md);
}
.toggle-switch:hover .toggle-slider {
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.15), 0 0 0 2px rgba(6, 182, 212, 0.1);
}

input[type="range"] {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    width: 100%;
    height: 10px;
    background: linear-gradient(to right, var(--input-bg), var(--panel-bg-light));
    border: 1px solid var(--border-color);
    border-radius: 8px;
    outline: none;
    padding: 0;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.1);
    transition: var(--transition-normal);
}
input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-hover));
    cursor: pointer;
    border-radius: 50%;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-md);
    border: 2px solid var(--text-color);
}
input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-hover));
    cursor: pointer;
    border-radius: 50%;
    border: 2px solid var(--text-color);
    transition: var(--transition-normal);
    box-shadow: var(--shadow-md);
}
input[type="range"]:hover {
    border-color: var(--accent-color);
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.15), 0 0 0 2px rgba(6, 182, 212, 0.1);
}
input[type="range"]:hover::-webkit-slider-thumb {
    background: linear-gradient(135deg, var(--accent-hover), var(--accent-color));
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}
input[type="range"]:hover::-moz-range-thumb {
    background: linear-gradient(135deg, var(--accent-hover), var(--accent-color));
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

.model-list-display-area {
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-small);
    padding: 10px 12px;
    min-height: 40px;
    font-size: 0.9em;
    color: var(--text-color-muted);
    white-space: pre-wrap; 
    word-break: break-all;
    max-height: 120px;
    overflow-y: auto;
    line-height: 1.4;
}

.clickable-model-item {
    padding: 4px 6px; 
    margin: 2px 0; 
    cursor: pointer;
    border-radius: var(--border-radius-small);
    transition: background-color 0.2s;
    color: var(--text-color);
}

.clickable-model-item:hover {
    background-color: var(--border-color); 
}

.clickable-model-item.selected-model {
    font-weight: bold;
    background-color: var(--accent-color);
    color: var(--dark-bg);
}

.btn {
    background: linear-gradient(135deg, var(--accent-color), var(--accent-hover));
    color: var(--text-color);
    border: 1px solid transparent;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius-md);
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 600;
    font-family: var(--font-family-main);
    transition: var(--transition-normal);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    min-height: 40px;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
    text-decoration: none;
    letter-spacing: -0.01em;
    box-shadow: var(--shadow-sm);
}

.btn::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: left 0.5s ease;
}

.btn:hover {
    background: linear-gradient(135deg, var(--accent-hover), var(--accent-color));
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-color);
}

.btn:hover::before {
    left: 100%;
}

.btn:active {
    animation: buttonPress 0.15s ease-out;
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
    background: linear-gradient(135deg, var(--accent-hover), var(--accent-color));
}

.btn:focus {
    outline: none;
    box-shadow: var(--shadow-md), 0 0 0 3px rgba(6, 182, 212, 0.3);
}

.btn:disabled {
    background: var(--text-color-muted);
    color: var(--text-color-disabled);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
    opacity: 0.6;
}

.btn:disabled::before {
    display: none;
}
.btn-primary { background-color: var(--primary-color); color: var(--secondary-color); }
.btn-primary:hover:not(:disabled) { background-color: #c9303e; }
.btn-secondary { background-color: #555; color: var(--secondary-color); border: 1px solid #666; }
.btn-secondary:hover:not(:disabled) { background-color: #666; }
.btn-action { background-color: var(--accent-color); color: var(--dark-bg); }
.btn-action:hover:not(:disabled) { background-color: #8eceda; }
.btn-small { padding: 8px 12px; font-size: 0.85em; text-transform: none; height: auto;}
.btn-danger { background-color: #e11d48; color: #fff; border: 1px solid #e11d48; }
.btn-danger:hover:not(:disabled) { background-color: #be123c; border-color: #be123c; }

.status-message { margin-top: 10px; font-size: 0.85em; text-align: center; }
.status-message.success { color: var(--success-color); }
.status-message.error { color: var(--error-color); }
.status-message.warning { color: var(--warning-color); }

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(8px);
    animation: modalFadeIn 0.3s ease-out;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        backdrop-filter: blur(0px);
    }
    to {
        opacity: 1;
        backdrop-filter: blur(8px);
    }
}

.modal-content {
    background: var(--card-bg);
    margin: 3% auto;
    padding: 0; 
    border: 1px solid var(--border-color);
    width: 90%;
    max-width: 650px;
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-2xl);
    display: flex;
    flex-direction: column;
    max-height: 85vh;
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        transform: translateY(-50px) scale(0.95);
        opacity: 0;
    }
    to {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
}

.modal-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-color), var(--primary-light), var(--accent-color));
    border-radius: var(--border-radius-xl) var(--border-radius-xl) 0 0;
}
#avatarEditModal .modal-content {
    max-width: 500px;
}

.modal-header {
    background: linear-gradient(135deg, var(--card-bg), var(--panel-bg-light));
    padding: var(--spacing-lg) var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
    border-radius: var(--border-radius-xl) var(--border-radius-xl) 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}
.modal-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: var(--spacing-lg);
    right: var(--spacing-lg);
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
}
.modal-header h2 {
    margin: 0;
    font-size: 1.6em;
    color: var(--primary-color);
    font-family: var(--font-family-title);
    font-weight: 700;
    letter-spacing: -0.02em;
}
.close-modal-btn {
    background: var(--panel-bg-light);
    border: 1px solid var(--border-color);
    color: var(--text-color-secondary);
    font-size: 24px;
    font-weight: bold;
    cursor: pointer;
    padding: 0;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    line-height: 1;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
}
.close-modal-btn:hover,
.close-modal-btn:focus {
    color: var(--text-color);
    background: var(--accent-color);
    border-color: var(--accent-color);
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
    text-decoration: none;
    outline: none;
}
.close-modal-btn:active {
    transform: scale(0.95);
}

.modal-body {
    padding: var(--spacing-lg);
    overflow-y: auto;
    background: var(--card-bg);
}

.modal-body::-webkit-scrollbar {
    width: 6px;
}

.modal-body::-webkit-scrollbar-track {
    background: transparent;
}

.modal-body::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

.modal-body h3 { 
    font-family: var(--font-family-title);
    color: var(--accent-color);
    margin-top: 0;
    margin-bottom: 15px;
    font-size: 1.2em;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 8px;
}
.modal-body hr {
    border: 0;
    height: 1px;
    background-color: var(--border-color);
    margin: 20px 0;
}

.modal-body textarea {
    width: 100%;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    font-family: var(--font-family-mono);
    line-height: 1.6;
}

.modal-body textarea#systemPromptTextareaModal,
.modal-body textarea#summaryPromptTextarea,
.modal-body textarea#summaryContentDisplay {
    min-height: 120px;
    resize: vertical;
}

.info-text {
    background: linear-gradient(135deg, var(--panel-bg-light), var(--input-bg));
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    font-size: 0.875rem;
    color: var(--text-color-secondary);
    position: relative;
    box-shadow: var(--shadow-sm);
    text-align: left;
    line-height: 1.4;
}

.info-text::before {
    content: 'ℹ';
    position: absolute;
    top: var(--spacing-sm);
    left: var(--spacing-sm);
    width: 20px;
    height: 20px;
    background: var(--accent-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: bold;
}

.info-text {
    padding-left: calc(var(--spacing-lg) + 30px);
}

.settings-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: var(--spacing-xl);
    background: linear-gradient(135deg, var(--panel-bg-light), var(--card-bg));
    border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
    padding: var(--spacing-xs);
    gap: var(--spacing-xs);
    flex-wrap: wrap; 
}
.tab-button {
    background: transparent;
    border: 1px solid transparent;
    padding: var(--spacing-md) var(--spacing-lg);
    cursor: pointer;
    color: var(--text-color-secondary);
    font-size: 0.875rem;
    font-weight: 600;
    font-family: var(--font-family-main);
    transition: var(--transition-normal);
    border-radius: var(--border-radius-md);
    flex: 1;
    text-align: center;
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}
.tab-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    transition: left 0.5s ease;
}
.tab-button:hover {
    color: var(--text-color);
    background: var(--input-bg);
    border-color: var(--border-color);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}
.tab-button:hover::before {
    left: 100%;
}
.tab-button.active {
    color: var(--accent-color);
    background: linear-gradient(135deg, var(--card-bg), var(--input-bg));
    border-color: var(--accent-color);
    box-shadow: var(--shadow-md), inset 0 1px 0 rgba(255,255,255,0.1);
    transform: translateY(-2px);
}
.tab-button.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 2px;
    background: var(--accent-color);
    border-radius: 1px;
}
.settings-tab-content {
    display: none;
    animation: fadeIn 0.3s ease-in-out;
}
.settings-tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.settings-group {
    margin-bottom: var(--spacing-2xl);
    padding: var(--spacing-2xl);
    background: linear-gradient(135deg, var(--card-bg), var(--panel-bg-light));
    border-radius: var(--border-radius-xl);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

.settings-group::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-color), var(--secondary-color));
    border-radius: var(--border-radius-xl) var(--border-radius-xl) 0 0;
}

.settings-group h3 {
    margin: 0 0 var(--spacing-xl) 0;
    color: var(--text-color);
    font-size: 1.125rem;
    font-weight: 700;
    font-family: var(--font-family-title);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: var(--spacing-md);
    position: relative;
}

.settings-group h3::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--accent-color);
    border-radius: 1px;
}

.avatar-edit-body {
    display: flex;
    gap: 25px;
}
.avatar-edit-section {
    flex: 1;
}
.avatar-edit-section h4 {
    font-family: var(--font-family-title);
    color: var(--accent-color);
    margin-bottom: 10px;
    font-size: 1.1em;
}
.avatar-preview-container {
    display: flex;
    justify-content: center;
    margin-bottom: 15px;
}
.avatar-preview-image {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border-color);
    background-color: var(--input-bg);
}
.avatar-file-input {
    padding: 5px;
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-small);
    color: var(--text-color-muted);
    width: 100%; 
    display: block; 
}
.avatar-section-divider {
    border: 0;
    width: 1px;
    background-color: var(--border-color);
    margin: 0;
}
.avatar-modal-actions {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 10px;
    margin-top: 10px;
    padding: 20px 25px;
    border-top: 1px solid var(--border-color);
}
.avatar-modal-actions .status-message {
    margin-right: auto;
    margin-top: 0;
}

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--input-bg); border-radius: 4px; }
::-webkit-scrollbar-thumb { background: #555; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #777; }

/* 响应式按钮布局优化 */
.header-actions {
    display: grid;
    grid-template-columns: 1fr auto;
    grid-template-rows: auto auto;
    gap: var(--spacing-sm);
    align-items: center;
    width: 100%;
}

.header-actions h1 {
    grid-column: 1 / -1;
    grid-row: 1;
    justify-self: center;
    margin: 0;
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: 600;
    white-space: nowrap;
}

.prompt-combo-section {
    grid-column: 1;
    grid-row: 2;
    justify-self: start;
}

.header-buttons-container {
    grid-column: 2;
    grid-row: 2;
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
    justify-content: flex-end;
    align-items: center;
}

/* ===== 工具栏折叠样式与动画 ===== */
.toolbar-area {
    grid-column: 2;
    grid-row: 2;
    display: flex;
    align-items: center;
    justify-self: end;
    gap: var(--spacing-xs);
    position: relative;
}

.toolbar-area .header-buttons-container {
    overflow: hidden;
    transition: max-width 0.3s ease, max-height 0.3s ease, opacity 0.3s ease, transform 0.3s ease;
    max-width: 700px; /* 展开时的上限，足够容纳所有按钮 */
    max-height: 40px; /* 展开时的上限高度，避免占用多余垂直空间 */
    opacity: 1;
    transform: translateX(0);
    flex: 0 0 auto; /* 防止占满可用空间，便于 max-width 控制 */
    width: auto;
    height: auto;
}

.toolbar-area.toolbar-collapsed .header-buttons-container {
    max-width: 0;
    width: 0;            /* 彻底收窄至 0 宽度 */
    max-height: 0;       /* 折叠时高度为 0，避免多余空白 */
    height: 0;
    flex: 0 0 0;         /* 不参与伸缩计算 */
    margin: 0 !important;
    padding: 0 !important;
    opacity: 0;
    transform: translateX(8px);
    pointer-events: none;
}

.toolbar-area.toolbar-collapsed {
    gap: 0; /* 折叠时不保留多余空隙 */
}

.toolbar-collapse-btn {
    background: var(--panel-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 0 8px;            /* 精准控制水平占位 */
    height: 28px;              /* 紧凑高度以减少占位 */
    line-height: 28px;         /* 垂直居中箭头 */
    min-width: 30px;           /* 最小必要宽度 */
    margin: 0;                 /* 清除多余外边距 */
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: background 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}
.toolbar-collapse-btn:hover {
    background: var(--input-bg);
    transform: translateY(-1px);
    border-color: var(--border-color-light);
}
.toolbar-collapse-btn:active {
    transform: translateY(0);
}

/* 折叠按钮图标（SVG）样式与回退字体栈 */
.toolbar-collapse-btn {
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", Arial, sans-serif;
}
.toolbar-collapse-btn .icon {
    display: block;
    fill: currentColor;
    transition: transform 0.3s ease;
}
.toolbar-collapse-btn.is-collapsed .icon {
    transform: rotate(-90deg); /* 折叠时图标指向右侧，表示可展开 */
}

.toolbar-tooltip {
    position: absolute;
    right: 44px; /* 折叠按钮右侧间距 */
    top: 50%;
    transform: translateY(-50%);
    background: var(--panel-bg-light);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-md);
    padding: 8px 10px;
    width: max-content;
    max-width: 280px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
    z-index: 1000;
}
.toolbar-tooltip.visible {
    opacity: 1;
    visibility: visible;
}
.toolbar-tooltip .tooltip-title {
    font-weight: 600;
    color: var(--accent-color);
    margin-bottom: 6px;
}
.toolbar-tooltip .tooltip-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 0.82rem;
    color: var(--text-color-secondary);
}

/* 响应式：在小屏保持控件可用并居中 */
@media (max-width: 600px) {
    .toolbar-area {
        justify-self: center;
        gap: var(--spacing-xs);
    }
    .toolbar-area .header-buttons-container {
        max-width: 100%;
        max-height: 600px;       /* 移动端展开高度上限（足够容纳多行按钮） */
    }
    .toolbar-area.toolbar-collapsed .header-buttons-container {
        max-width: 0;
        max-height: 0;           /* 移动端折叠时高度为 0 */
    }
}

/* 按钮容器自适应布局 */
.header-buttons-container .btn {
    flex: 0 0 auto;
    min-width: 0;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.8rem;
    height: 32px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

@media (max-width: 600px) {
    body { 
        padding: var(--spacing-sm); 
        font-size: 16px;
    }
    .game-container {
        padding: var(--spacing-lg);
        height: calc(110dvh - 22px); /* 移动端高度提升至当前的1.1倍，提供更多垂直空间 */
        border-radius: var(--border-radius-lg);
    }
    
    /* 移动端按钮布局优化 */
    .header-actions {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto auto;
        gap: var(--spacing-sm);
        text-align: center;
    }
    
    .header-actions h1 {
        grid-column: 1;
        grid-row: 1;
        font-size: 1.3rem;
        margin-bottom: 4px;
    }
    
    .prompt-combo-section {
        grid-column: 1;
        grid-row: 2;
        justify-self: center;
        width: 100%;
        max-width: 300px;
    }
    
    .header-buttons-container {
        grid-column: 1;
        grid-row: 3;
        justify-self: center;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
        gap: var(--spacing-xs);
        width: 100%;
        max-width: 100%;
    }
    /* 移动端：将 toolbar-area 作为网格项，并在折叠时收窄列，避免空白 */
    .toolbar-area {
        grid-column: 1;
        grid-row: 3;
        justify-self: center;
        width: 100%;
        max-width: 300px;
        display: grid;
        grid-template-columns: 1fr auto;
        align-items: center;
        gap: var(--spacing-xs);
    }
    .toolbar-area.toolbar-collapsed {
        grid-template-columns: auto; /* 折叠时仅保留按钮列，消除占位 */
        gap: 0;
    }
    .toolbar-area .header-buttons-container {
        grid-column: 1;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
        gap: var(--spacing-xs);
        width: 100%;
        max-width: 100%;
    }
    .toolbar-area .toolbar-collapse-btn {
        grid-column: 2;
        height: 32px;
        line-height: 32px;
    }
    
    .header-buttons-container .btn {
        width: 100%;
        justify-content: center;
        font-size: 0.75rem;
        padding: var(--spacing-xs) var(--spacing-sm);
        height: 36px;
        min-width: 0;
    }
    .game-main-interface {
        flex-direction: column;
        gap: var(--spacing-lg);
    }
    .status-bar-area {
        width: 100%;
        order: 2;
        max-height: 250px;
        padding: var(--spacing-md);
    }
    .dialogue-area {
        order: 1;
    }
    .game-output {
        padding: var(--spacing-lg);
        min-height: 0; /* 在固定布局下由父容器和弹性布局控制滚动 */
    }
    .message-content-wrapper {
        font-size: 1rem;
        padding: var(--spacing-md);
        border-radius: var(--border-radius-md);
    }
    .message-bubble {
        max-width: 98%;
        margin: var(--spacing-sm) 0;
    }
    :root { --avatar-size: 32px; }
    .input-container { 
        flex-direction: column; 
        align-items: stretch; 
        gap: var(--spacing-sm);
        padding: var(--spacing-md);
        margin-top: var(--spacing-md);
    }
    .input-area-wrapper { width: 100%; }
    .input-actions-container {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    .input-actions-container .btn {
        width: 100%;
        justify-content: center;
    }
    #playerInput {
        min-height: 80px;
        font-size: 16px; /* 防止iOS缩放 */
    }
    #sendButton { width: 100%; }
    #cancelButton { width: 100%; }
    .main-settings-toggle-btn {
        top: var(--spacing-sm);
        right: var(--spacing-sm);
        width: 40px;
        height: 40px;
        font-size: 18px;
    }
}

.message-bubble.system-message-temporary {
    transition: opacity 0.5s ease-out;
}

.message-bubble.system-message.success {
    color: var(--success-color);
    border-left: 3px solid var(--success-color);
    padding-left: 10px;
    margin: 5px auto;
    text-align: left;
    background-color: rgba(76, 175, 80, 0.08);
    font-style: normal;
}

/* 中等屏幕尺寸优化 (平板横屏) */
@media (max-width: 1200px) and (min-width: 901px) {
    .header-buttons-container {
        gap: var(--spacing-xs);
    }
    
    .header-buttons-container .btn {
        font-size: 0.75rem;
        padding: var(--spacing-xs) var(--spacing-sm);
        height: 30px;
    }
}

/* 平板竖屏和小屏幕笔记本 */
@media (max-width: 900px) and (min-width: 601px) {
    .game-container {
        margin: var(--spacing-md);
        padding: var(--spacing-xl);
        border-radius: var(--border-radius-xl);
    }
    
    .header-actions {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto auto;
        gap: var(--spacing-sm);
        text-align: center;
    }
    
    .header-actions h1 {
        grid-column: 1;
        grid-row: 1;
        font-size: 1.4rem;
    }
    
    .prompt-combo-section {
        grid-column: 1;
        grid-row: 2;
        justify-self: center;
        width: 100%;
        max-width: 400px;
    }
    
    .header-buttons-container {
        grid-column: 1;
        grid-row: 3;
        justify-self: center;
        display: flex;
        flex-wrap: wrap;
        gap: var(--spacing-xs);
        width: 100%;
        max-width: 400px;
        justify-content: center;
    }
    /* 平板竖屏：将 toolbar-area 作为网格项并控制内部换行，折叠时不留空白 */
    .toolbar-area {
        grid-column: 1;
        grid-row: 3;
        justify-self: center;
        width: 100%;
        max-width: 400px;
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: var(--spacing-xs);
        justify-content: center;
    }
    .toolbar-area.toolbar-collapsed {
        gap: 0; /* 折叠时消除列间隙 */
    }
    .toolbar-area .header-buttons-container {
        flex: 1 1 auto;
        display: flex;
        flex-wrap: wrap;
        gap: var(--spacing-xs);
        width: 100%;
        max-width: 400px;
        justify-content: center;
    }
    .toolbar-area .toolbar-collapse-btn {
        flex: 0 0 auto;
        height: 32px;
        line-height: 32px;
    }
    
    .header-buttons-container .btn {
        flex: 0 1 calc(50% - var(--spacing-xs)/2);
        min-width: 80px;
        max-width: 120px;
        justify-content: center;
        font-size: 0.75rem;
        padding: var(--spacing-xs) var(--spacing-sm);
        height: 34px;
    }
    
    .game-main-interface {
        flex-direction: column;
        gap: var(--spacing-xl);
    }
    
    .status-bar-area {
        width: 100% !important;
        max-height: 40vh;
        order: -1;
        transition: max-height 0.3s ease-in-out;
        padding: var(--spacing-lg);
    }
    
    .game-output {
        padding: var(--spacing-xl);
    }
    
    .message-bubble {
        margin: var(--spacing-md) 0;
    }
    
    .input-container {
        gap: var(--spacing-md);
        padding: var(--spacing-lg);
    }
    
    .input-actions-container {
        gap: var(--spacing-sm);
    }
    
    .main-settings-toggle-btn {
        width: 45px;
        height: 45px;
        font-size: 20px;
    }

    .status-bar-area.status-bar-collapsed {
        max-height: 40px !important;
        overflow: hidden;
        padding: 0;
        border: none;
        background-color: transparent;
    }
    
    .status-bar-area.status-bar-collapsed .status-bar-content {
        visibility: hidden;
        height: 0;
        padding: 0;
        margin: 0;
        overflow: hidden;
    }

    .status-bar-toggle {
        width: 100%;
        padding: 8px 10px;
        display: block;
        height: 40px;
        background-color: var(--panel-bg);
    }
}

/* 移动端<=768px：将 h1 与折叠按钮并排，按钮组下移，占满第二行 */
@media (max-width: 768px) {
    .header-actions {
        display: grid;
        grid-template-columns: 1fr auto; /* 左侧标题，右侧折叠按钮 */
        grid-template-rows: auto auto;    /* 第一行标题+折叠按钮，第二行按钮组 */
        align-items: center;
        gap: 10px; /* 保持8–12px间距 */
        width: 100%;
    }

    .header-actions h1 {
        grid-column: 1;
        grid-row: 1;
        justify-self: start;
        align-self: center;
        margin: 0;
    }

    /* 让 toolbar-area 的子元素参与到父网格布局，以便将折叠按钮放在标题旁 */
    .toolbar-area {
        grid-column: 2;
        grid-row: 1;
        display: contents; /* 将内部子项提升为父网格的直接参与者 */
    }

    /* 折叠按钮与标题同排 */
    #toolbarCollapseBtn {
        grid-column: 2;
        grid-row: 1;
        justify-self: end;
        align-self: center;
        height: 36px;           /* 提升触控可点击面积 */
        line-height: 36px;
        padding: 0 12px;
        touch-action: manipulation;
    }

    /* 工具按钮容器下移至第二行，填满宽度 */
    .header-buttons-container {
        grid-column: 1 / -1;    /* 跨越整行 */
        grid-row: 2;
        justify-self: center;
        width: 100%;
        display: flex;
        flex-wrap: wrap;
        gap: var(--spacing-xs);
    }
}
    .input-actions-row .btn { width: auto; flex: 0 0 auto; }
    .input-actions-row { justify-content: flex-start; }
    .input-actions-row #sendButton,
    .input-actions-row #cancelButton,
    .input-actions-row #uploadButton { width: auto; }