/* ═══════════════════════════════════════════════════════════════
   Metona Ollama Client - 未来感深色主题
   玻璃拟态 + 霓虹色点缀 + Mobile First 响应式
   ═══════════════════════════════════════════════════════════════ */

/* ── CSS 变量 ── */
:root {
    --bg-primary: #0a0a1a;
    --bg-secondary: #0f0f2a;
    --bg-glass: rgba(15, 15, 42, 0.7);
    --bg-glass-light: rgba(25, 25, 60, 0.5);
    --bg-glass-hover: rgba(35, 35, 80, 0.5);
    --border-glass: rgba(100, 100, 255, 0.15);
    --border-glow: rgba(0, 245, 212, 0.3);
    --text-primary: #e8e8f0;
    --text-secondary: #8888aa;
    --text-muted: #555570;
    --accent-cyan: #00f5d4;
    --accent-purple: #7b2ff7;
    --accent-blue: #3b82f6;
    --accent-pink: #f472b6;
    --accent-red: #ef4444;
    --accent-green: #22c55e;
    --accent-yellow: #eab308;
    --gradient-main: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    --shadow-glow: 0 0 20px rgba(0, 245, 212, 0.15);
    --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.4);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --font-mono: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    --transition: all 0.2s ease;
}

/* ── 全局重置 ── */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    overflow: hidden;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 15px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 背景动态网格 */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
        radial-gradient(circle at 20% 30%, rgba(0, 245, 212, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(123, 47, 247, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

#app {
    display: flex;
    flex-direction: column;
    height: 100vh;
    position: relative;
    z-index: 1;
}

/* ═══ 顶部导航 ═══ */
.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-glass);
    flex-shrink: 0;
    z-index: 10;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
    flex: 1;
}

.logo {
    font-size: 24px;
    filter: drop-shadow(0 0 8px rgba(0, 245, 212, 0.4));
    flex-shrink: 0;
}

.app-title {
    font-size: 16px;
    font-weight: 700;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.app-version {
    font-size: 10px;
    font-weight: 600;
    color: #fff;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    border: none;
    border-radius: 10px;
    padding: 2px 8px;
    margin-left: 4px;
    letter-spacing: 0.8px;
    user-select: none;
    flex-shrink: 0;
    box-shadow: 0 0 8px rgba(0, 245, 212, 0.3);
    animation: version-pulse 3s ease-in-out infinite;
}

@keyframes version-pulse {
    0%, 100% { box-shadow: 0 0 8px rgba(0, 245, 212, 0.25); }
    50% { box-shadow: 0 0 14px rgba(0, 245, 212, 0.45); }
}

.header-right {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}

/* ── 连接状态指示器 ── */
.conn-status {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 20px;
    cursor: default;
    transition: var(--transition);
    font-size: 12px;
    font-weight: 500;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
    transition: var(--transition);
}

.status-label {
    white-space: nowrap;
}

/* 已连接 - 绿色脉冲 */
.conn-status.connected {
    background: rgba(34, 197, 94, 0.12);
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: var(--accent-green);
}
.conn-status.connected .status-dot {
    background: var(--accent-green);
    box-shadow: 0 0 6px var(--accent-green);
    animation: pulse 2s ease-in-out infinite;
}

/* 未连接 - 红色 */
.conn-status.disconnected {
    background: rgba(239, 68, 68, 0.12);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--accent-red);
}
.conn-status.disconnected .status-dot {
    background: var(--accent-red);
    box-shadow: 0 0 6px var(--accent-red);
}

/* 连接中 - 黄色闪烁 */
.conn-status.pending {
    background: rgba(234, 179, 8, 0.12);
    border: 1px solid rgba(234, 179, 8, 0.3);
    color: var(--accent-yellow);
}
.conn-status.pending .status-dot {
    background: var(--accent-yellow);
    box-shadow: 0 0 6px var(--accent-yellow);
    animation: pulse 1s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 6px currentColor; }
    50% { opacity: 0.5; box-shadow: 0 0 12px currentColor; }
}

/* ── 图标按钮（渐变风格，与发送按钮统一）── */
.icon-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: none;
    background: var(--gradient-main);
    color: white;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 2px 10px rgba(0, 245, 212, 0.25);
}

.icon-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 18px rgba(0, 245, 212, 0.4);
}

.icon-btn:active {
    transform: scale(0.95);
}

.icon-btn svg {
    width: 20px;
    height: 20px;
}

.icon-btn.sm {
    width: 28px;
    height: 28px;
    font-size: 14px;
    background: transparent;
    border: none;
    cursor: pointer;
    opacity: 0.6;
    transition: var(--transition);
}

.icon-btn.sm:hover { opacity: 1; }
.icon-btn.danger:hover { color: var(--accent-red); }

/* ═══ 模型选择栏 ═══ */
.model-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-glass);
    flex-shrink: 0;
}

.model-bar-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    background: var(--gradient-main);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 2px 8px rgba(0, 245, 212, 0.2);
}

.model-bar-icon svg {
    width: 16px;
    height: 16px;
    color: white;
}

.model-select-wrap {
    position: relative;
    flex: 1;
    min-width: 0;
    display: flex;
    align-items: center;
}

.model-select {
    width: 100%;
    padding: 8px 36px 8px 14px;
    background: var(--bg-glass-light);
    border: 1.5px solid var(--border-glass);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 13px;
    font-weight: 500;
    font-family: var(--font-sans);
    outline: none;
    cursor: pointer;
    transition: var(--transition);
    appearance: none;
    -webkit-appearance: none;
}

.model-select:focus {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 3px rgba(0, 245, 212, 0.12), 0 0 12px rgba(0, 245, 212, 0.1);
}

.model-select:hover {
    border-color: rgba(0, 245, 212, 0.4);
}

.model-select option {
    background: var(--bg-secondary);
    color: var(--text-primary);
    padding: 8px;
}

.model-select-arrow {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    color: var(--accent-cyan);
    display: flex;
    opacity: 0.6;
}

.model-select-arrow svg {
    width: 16px;
    height: 16px;
}

.model-badges {
    display: flex;
    gap: 6px;
    flex-shrink: 0;
}

.model-badge {
    font-size: 11px;
    font-weight: 600;
    white-space: nowrap;
    padding: 4px 10px;
    border-radius: 20px;
    letter-spacing: 0.3px;
}

.think-badge {
    color: var(--accent-purple);
    background: rgba(123, 47, 247, 0.12);
    border: 1px solid rgba(123, 47, 247, 0.25);
}

.vision-badge {
    color: var(--accent-cyan);
    background: rgba(0, 245, 212, 0.08);
    border: 1px solid rgba(0, 245, 212, 0.2);
}

/* ── Think 按钮（输入栏内） ── */
.think-toggle {
    display: flex;
    align-items: center;
    cursor: pointer;
    flex-shrink: 0;
    user-select: none;
}

.think-toggle input { display: none; }

.think-btn {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-md);
    background: var(--bg-glass-light);
    border: 1px solid var(--border-glass);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    color: var(--text-secondary);
}

.think-btn svg {
    width: 20px;
    height: 20px;
}

.think-toggle:not(.unavailable):hover .think-btn {
    transform: scale(1.05);
    box-shadow: 0 4px 18px rgba(123, 47, 247, 0.35);
    border-color: var(--accent-purple);
    color: var(--accent-purple);
}

.think-toggle input:checked + .think-btn {
    background: var(--gradient-main);
    border: none;
    color: white;
    box-shadow: 0 2px 10px rgba(0, 245, 212, 0.25);
}

.think-toggle input:checked + .think-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 18px rgba(0, 245, 212, 0.4);
}

.think-toggle.unavailable .think-btn {
    opacity: 0.3;
    cursor: not-allowed;
}

.think-toggle.unavailable .think-btn svg {
    stroke: var(--text-muted);
}

/* ── 开关控件 ── */
.toggle-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--text-secondary);
    cursor: pointer;
    user-select: none;
    white-space: nowrap;
}

.toggle-label input { display: none; }

.toggle-slider {
    position: relative;
    width: 32px;
    height: 18px;
    background: var(--bg-glass-light);
    border: 1px solid var(--border-glass);
    border-radius: 9px;
    transition: var(--transition);
}

.toggle-slider::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 12px;
    height: 12px;
    background: var(--text-secondary);
    border-radius: 50%;
    transition: var(--transition);
}

.toggle-label input:checked + .toggle-slider {
    background: rgba(0, 245, 212, 0.2);
    border-color: var(--accent-cyan);
}

.toggle-label input:checked + .toggle-slider::after {
    transform: translateX(14px);
    background: var(--accent-cyan);
    box-shadow: 0 0 6px var(--accent-cyan);
}

/* ═══ 聊天区域 ═══ */
.chat-area {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 16px;
    scroll-behavior: smooth;
}

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

.chat-area::-webkit-scrollbar-track {
    background: transparent;
}

.chat-area::-webkit-scrollbar-thumb {
    background: var(--border-glass);
    border-radius: 3px;
}

/* ── 空状态 ── */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    gap: 16px;
    opacity: 0.6;
}

.empty-icon svg {
    width: 100px;
    height: 100px;
    opacity: 0.5;
}

.empty-state h2 {
    font-size: 20px;
    font-weight: 600;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.empty-state p {
    color: var(--text-muted);
    font-size: 14px;
}

/* ── 消息气泡 ── */
.messages {
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-width: 800px;
    margin: 0 auto;
}

.message {
    display: flex;
    gap: 12px;
    animation: fadeInUp 0.3s ease;
}

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

.msg-avatar {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    border-radius: var(--radius-sm);
    background: var(--bg-glass-light);
    border: 1px solid var(--border-glass);
}

.msg-body {
    flex: 1;
    min-width: 0;
}

.msg-role {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.model-tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    text-transform: none;
    letter-spacing: 0.3px;
    color: #fff;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    border-radius: 6px;
    padding: 2px 10px;
    line-height: 1.5;
    white-space: nowrap;
    box-shadow: 0 0 8px rgba(0, 245, 212, 0.2);
}

.message.user .msg-body {
    background: var(--bg-glass-light);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    padding: 10px 14px;
}

.message.assistant .msg-body {
    background: rgba(0, 245, 212, 0.03);
    border: 1px solid rgba(0, 245, 212, 0.08);
    border-radius: var(--radius-md);
    padding: 10px 14px;
}

.msg-content {
    font-size: 14px;
    line-height: 1.7;
    word-break: break-word;
}

.msg-content pre {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    padding: 12px;
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: 13px;
    margin: 8px 0;
}

.msg-content code {
    background: rgba(0, 0, 0, 0.2);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 13px;
}

.msg-content pre code {
    background: none;
    padding: 0;
}

.msg-content p { margin-bottom: 8px; }
.msg-content p:last-child { margin-bottom: 0; }

/* 思考块 */
.think-block {
    margin-bottom: 8px;
    border: 1px solid rgba(234, 179, 8, 0.2);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.think-header {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    background: rgba(234, 179, 8, 0.05);
    color: var(--accent-yellow);
    font-size: 12px;
    cursor: pointer;
    user-select: none;
}

.think-header .chevron {
    margin-left: auto;
    transition: transform 0.2s;
}

.think-header .chevron.expanded {
    transform: rotate(180deg);
}

.think-content {
    padding: 8px 12px;
    background: rgba(234, 179, 8, 0.03);
}

.think-content pre {
    font-size: 12px;
    color: var(--text-secondary);
    white-space: pre-wrap;
    word-break: break-word;
    margin: 0;
    background: none;
    border: none;
    padding: 0;
}

/* 打字光标 */
.typing-cursor {
    display: inline-block;
    animation: blink 0.8s infinite;
    color: var(--accent-cyan);
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* ═══ Loading 等待动画 ═══ */
.loading-dots {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 0;
}

.loading-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--accent-cyan);
    animation: dotPulse 1.4s ease-in-out infinite;
    box-shadow: 0 0 8px rgba(0, 245, 212, 0.5);
}

.loading-dots span:nth-child(1) { animation-delay: 0s; }
.loading-dots span:nth-child(2) { animation-delay: 0.2s; }
.loading-dots span:nth-child(3) { animation-delay: 0.4s; }

@keyframes dotPulse {
    0%, 80%, 100% {
        transform: scale(0.4);
        opacity: 0.3;
    }
    40% {
        transform: scale(1);
        opacity: 1;
    }
}

.loading-text {
    display: inline-block;
    font-size: 13px;
    color: var(--text-muted);
    animation: loadingFade 1.5s ease-in-out infinite;
}

@keyframes loadingFade {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 1; }
}

/* 消息图片 */
.msg-images {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 8px;
}

.msg-img {
    max-width: 200px;
    max-height: 200px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-glass);
    object-fit: cover;
}

/* 统计信息 */
.msg-stats {
    display: flex;
    gap: 12px;
    margin-top: 6px;
    font-size: 11px;
    color: var(--text-muted);
}

/* ═══ 输入区域 ═══ */
.input-area {
    flex-shrink: 0;
    padding: 10px 16px 14px;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid var(--border-glass);
}

.image-preview {
    display: flex;
    gap: 8px;
    padding: 8px 0;
    flex-wrap: wrap;
}

.preview-thumb {
    position: relative;
    width: 60px;
    height: 60px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 1px solid var(--border-glass);
}

.preview-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.remove-img {
    position: absolute;
    top: 2px;
    right: 2px;
    width: 20px;
    height: 20px;
    border: none;
    background: rgba(239, 68, 68, 0.9);
    color: white;
    border-radius: 50%;
    font-size: 14px;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ── 文件预览区域 ── */
.file-preview {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 8px 0;
}

.file-chip {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 5px 10px;
    border-radius: 8px;
    background: rgba(0, 245, 212, 0.06);
    border: 1px solid rgba(0, 245, 212, 0.18);
    font-size: 12px;
    line-height: 1;
    transition: var(--transition);
    animation: fadeInUp 0.2s ease;
}

.file-chip:hover {
    border-color: rgba(0, 245, 212, 0.35);
    background: rgba(0, 245, 212, 0.1);
}

.file-icon {
    font-size: 14px;
    flex-shrink: 0;
}

.file-name {
    font-weight: 600;
    color: var(--text-primary);
    max-width: 160px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.file-size {
    color: var(--text-muted);
    flex-shrink: 0;
}

.remove-file {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 15px;
    line-height: 1;
    padding: 0 2px;
    border-radius: 4px;
    transition: var(--transition);
    flex-shrink: 0;
}

.remove-file:hover {
    color: var(--accent-red);
    background: rgba(239, 68, 68, 0.1);
}

.input-row {
    display: flex;
    align-items: flex-end;
    gap: 8px;
}

.attach-btn {
    flex-shrink: 0;
}

.chat-input {
    flex: 1;
    padding: 10px 14px;
    background: var(--bg-glass-light);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 14px;
    resize: none;
    outline: none;
    min-height: 42px;
    max-height: 120px;
    line-height: 1.5;
    transition: var(--transition);
}

.chat-input:focus {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 2px rgba(0, 245, 212, 0.1);
}

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

.send-btn {
    flex-shrink: 0;
    width: 42px;
    height: 42px;
    border: none;
    border-radius: var(--radius-md);
    background: var(--gradient-main);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    box-shadow: 0 2px 10px rgba(0, 245, 212, 0.3);
}

.send-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 20px rgba(0, 245, 212, 0.4);
}

.send-btn:active {
    transform: scale(0.95);
}

.send-btn.disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.send-btn svg {
    width: 18px;
    height: 18px;
}

/* 停止按钮样式 */
.send-btn.stop-btn {
    background: linear-gradient(135deg, #ff4757, #ff6b81);
    box-shadow: 0 2px 10px rgba(255, 71, 87, 0.4);
    animation: stopPulse 1.5s ease-in-out infinite;
}

.send-btn.stop-btn:hover {
    box-shadow: 0 4px 20px rgba(255, 71, 87, 0.6);
}

@keyframes stopPulse {
    0%, 100% { box-shadow: 0 2px 10px rgba(255, 71, 87, 0.4); }
    50% { box-shadow: 0 2px 16px rgba(255, 71, 87, 0.7); }
}

.spinner {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ═══ 模态框 ═══ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    animation: fadeIn 0.2s ease;
    padding: 16px;
}

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

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-glass);
    width: 100%;
    max-width: 500px;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    animation: slideUp 0.3s ease;
}

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

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-glass);
}

.modal-header h3 {
    font-size: 16px;
    font-weight: 600;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.modal-body {
    padding: 16px 20px;
    overflow-y: auto;
    flex: 1;
}

/* ── 设置项 ── */
.setting-group {
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-glass);
}

.setting-group:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.setting-label {
    display: flex;
    align-items: center;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.setting-input {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg-glass-light);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 13px;
    outline: none;
    margin-bottom: 8px;
    transition: var(--transition);
}

.setting-input:focus {
    border-color: var(--accent-cyan);
}

/* ── 按钮 ── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    gap: 6px;
}

.btn-primary {
    background: var(--gradient-main);
    color: white;
}

.btn-primary:hover {
    box-shadow: 0 4px 16px rgba(0, 245, 212, 0.3);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-glass);
    color: var(--text-secondary);
}

.btn-outline:hover {
    border-color: var(--accent-cyan);
    color: var(--text-primary);
}

.btn-danger {
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--accent-red);
}

.btn-danger:hover {
    background: rgba(239, 68, 68, 0.25);
}

.btn-sm {
    padding: 4px 10px;
    font-size: 12px;
}

/* ── 连接信息 ── */
.connection-info {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
}

.status-badge {
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.status-badge.success {
    background: rgba(34, 197, 94, 0.15);
    color: var(--accent-green);
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.status-badge.error {
    background: rgba(239, 68, 68, 0.15);
    color: var(--accent-red);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.status-badge.warning {
    background: rgba(234, 179, 8, 0.15);
    color: var(--accent-yellow);
    border: 1px solid rgba(234, 179, 8, 0.3);
}

.server-version {
    font-size: 12px;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.cors-hint {
    padding: 10px;
    background: rgba(234, 179, 8, 0.08);
    border: 1px solid rgba(234, 179, 8, 0.2);
    border-radius: var(--radius-sm);
    margin-top: 8px;
}

.cors-hint p {
    font-size: 12px;
    color: var(--accent-yellow);
    margin-bottom: 6px;
}

.cors-hint code {
    display: block;
    padding: 8px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--accent-cyan);
    user-select: all;
}

/* ── 运行中的模型 ── */
.running-models {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 10px;
}

.running-model {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    background: var(--bg-glass-light);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-glass);
}

.running-model .model-name {
    flex: 1;
    font-size: 13px;
    font-weight: 500;
}

.running-model .model-vram {
    font-size: 12px;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.text-muted {
    color: var(--text-muted);
    font-size: 13px;
}

/* ── 历史记录 ── */
.empty-history {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 30px 0;
    opacity: 0.5;
}

.history-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

/* 历史搜索栏 */
.history-search-wrap {
    position: relative;
    margin-bottom: 10px;
}

.history-search-input {
    width: 100%;
    padding: 10px 36px 10px 14px;
    background: var(--bg-glass-light);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 13px;
    outline: none;
    transition: var(--transition);
}

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

.history-search-input:focus {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 2px rgba(0, 245, 212, 0.1);
}

.history-search-clear {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 14px;
    padding: 4px;
    line-height: 1;
    border-radius: 4px;
    transition: var(--transition);
}

.history-search-clear:hover {
    color: var(--text-primary);
    background: rgba(255,255,255,0.06);
}

/* 历史列表项 */
.history-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    transition: var(--transition);
}

.history-item:hover {
    background: var(--bg-glass-light);
    border-color: var(--border-glass);
}

.history-info {
    flex: 1;
    min-width: 0;
    cursor: pointer;
}

.history-title {
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.history-meta {
    display: flex;
    gap: 10px;
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 2px;
}

.history-actions {
    display: flex;
    gap: 2px;
    flex-shrink: 0;
}

/* ── 历史只读模式提示栏 ── */
.history-view-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 16px;
    background: rgba(123, 47, 247, 0.15);
    border-top: 1px solid rgba(123, 47, 247, 0.3);
    font-size: 13px;
    color: var(--accent-purple);
    flex-shrink: 0;
}

/* ── 历史记录分页 ── */
.history-pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0 4px;
    border-top: 1px solid var(--border-glass);
    margin-top: 8px;
}

.page-info {
    font-size: 12px;
    color: var(--text-muted);
    white-space: nowrap;
}

.page-buttons {
    display: flex;
    align-items: center;
    gap: 4px;
}

.page-btn {
    min-width: 32px;
    height: 32px;
    border: 1px solid var(--border-glass);
    background: var(--bg-glass-light);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    font-size: 13px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.page-btn:hover:not(.disabled):not(.active) {
    border-color: var(--accent-cyan);
    color: var(--text-primary);
}

.page-btn.active {
    background: rgba(0, 245, 212, 0.15);
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
    font-weight: 600;
}

.page-btn.disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.page-ellipsis {
    color: var(--text-muted);
    font-size: 13px;
    padding: 0 2px;
}

/* ═══ 图片预览 Lightbox ═══ */
.lightbox-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 300;
    cursor: zoom-out;
    animation: fadeIn 0.2s ease;
}

.lightbox-img {
    max-width: 90vw;
    max-height: 90vh;
    border-radius: var(--radius-md);
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.5);
    object-fit: contain;
    cursor: default;
}

.lightbox-close {
    position: fixed;
    top: 16px;
    right: 20px;
    width: 40px;
    height: 40px;
    border: none;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 20px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    z-index: 301;
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* 消息图片可点击提示 */
.msg-img[data-lightbox] {
    cursor: zoom-in;
    transition: var(--transition);
}

.msg-img[data-lightbox]:hover {
    opacity: 0.85;
    transform: scale(1.02);
}

/* ═══ 响应式 - 平板及以上 ═══ */
@media (min-width: 768px) {
    .app-header {
        padding: 12px 24px;
    }

    .app-title {
        font-size: 18px;
    }

    .model-bar {
        padding: 8px 24px;
    }

    .chat-area {
        padding: 24px;
    }

    .messages {
        max-width: 900px;
    }

    .input-area {
        padding: 12px 24px 16px;
    }

    .modal {
        max-width: 560px;
    }
}

/* ═══ 响应式 - 桌面 ═══ */
@media (min-width: 1024px) {
    .messages {
        max-width: 960px;
    }

    .msg-content {
        font-size: 15px;
    }

    /* 历史记录面板加宽 */
    #historyModal .modal {
        max-width: 680px;
    }
}

@media (min-width: 1440px) {
    #historyModal .modal {
        max-width: 800px;
    }
}

/* ── 选中文本样式 ── */
::selection {
    background: rgba(0, 245, 212, 0.3);
    color: white;
}

/* ── 链接样式 ── */
.msg-content a {
    color: var(--accent-cyan);
    text-decoration: none;
}

.msg-content a:hover {
    text-decoration: underline;
}

/* 被 sanitizer 拦截的危险链接/图片 */
.msg-content .blocked-link {
    color: var(--accent-red);
    text-decoration: line-through;
    cursor: not-allowed;
    font-size: 0.9em;
    opacity: 0.7;
}

/* ── 列表样式 ── */
.msg-content ul, .msg-content ol {
    padding-left: 20px;
    margin: 8px 0;
}

.msg-content li {
    margin-bottom: 4px;
}

/* ── 表格样式 ── */
.msg-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 8px 0;
    font-size: 13px;
}

.msg-content th, .msg-content td {
    padding: 6px 10px;
    border: 1px solid var(--border-glass);
    text-align: left;
}

.msg-content th {
    background: var(--bg-glass-light);
    font-weight: 600;
}

/* ── 引用块 ── */
.msg-content blockquote {
    border-left: 3px solid var(--accent-cyan);
    padding-left: 12px;
    margin: 8px 0;
    color: var(--text-secondary);
}

/* ═══ Toast 通知 ═══ */
.toast-container {
    position: fixed;
    top: 60px;
    right: 16px;
    z-index: 200;
    display: flex;
    flex-direction: column;
    gap: 8px;
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    box-shadow: var(--shadow-glass);
    font-size: 13px;
    color: var(--text-primary);
    pointer-events: auto;
    animation: toastIn 0.3s ease;
    max-width: 340px;
    backdrop-filter: blur(12px);
}

.toast.removing {
    animation: toastOut 0.25s ease forwards;
}

.toast-icon {
    font-size: 16px;
    flex-shrink: 0;
}

.toast.success { border-color: rgba(34, 197, 94, 0.4); }
.toast.success .toast-icon { color: var(--accent-green); }

.toast.error { border-color: rgba(239, 68, 68, 0.4); }
.toast.error .toast-icon { color: var(--accent-red); }

.toast.warning { border-color: rgba(234, 179, 8, 0.4); }
.toast.warning .toast-icon { color: var(--accent-yellow); }

.toast.info { border-color: rgba(0, 245, 212, 0.3); }
.toast.info .toast-icon { color: var(--accent-cyan); }

@keyframes toastIn {
    from { opacity: 0; transform: translateX(40px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes toastOut {
    from { opacity: 1; transform: translateX(0); }
    to { opacity: 0; transform: translateX(40px); }
}