:root {
    --bg-dark: #0f111a;
    --sidebar-bg: rgba(20, 22, 33, 0.7);
    --panel-bg: rgba(30, 32, 48, 0.6);
    --glass-border: rgba(255, 255, 255, 0.08);
    --accent-color: #8b5cf6;
    --accent-hover: #a78bfa;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --success: #10b981;
    --danger: #ef4444;
}

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

body {
    font-family: 'Inter', sans-serif;
    background: radial-gradient(circle at top right, #1a1c29, #0f111a);
    color: var(--text-main);
    height: 100vh;
    overflow: hidden;
}

/* 应用主容器 (仪表盘布局) */
.app-container {
    display: flex;
    height: 100vh;
    width: 100vw;
}

/* 侧边栏样式 */
.sidebar {
    width: 260px;
    background: var(--sidebar-bg);
    backdrop-filter: blur(20px);
    border-right: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    z-index: 10;
}

.sidebar-header {
    padding: 24px 20px;
    border-bottom: 1px solid var(--glass-border);
}

.logo {
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo i {
    color: var(--accent-color);
}

.version {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 6px;
    margin-left: 30px;
}

.sidebar-nav {
    padding: 20px 10px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--text-muted);
    text-decoration: none;
    border-radius: 12px;
    transition: all 0.2s ease;
    font-weight: 500;
}

.nav-item i {
    width: 20px;
    text-align: center;
    font-size: 16px;
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
}

.nav-item.active {
    background: var(--accent-color);
    color: #fff;
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3);
}

/* 主内容区样式 */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* 顶部导航栏样式 */
.top-header {
    height: 70px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 30px;
    background: rgba(15, 17, 26, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    z-index: 5;
}

.header-left h2 {
    font-size: 20px;
    font-weight: 600;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.quota-badge {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
    color: var(--success);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
    cursor: help;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--panel-bg);
    padding: 6px 16px 6px 6px;
    border-radius: 30px;
    border: 1px solid var(--glass-border);
}

.user-info img {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
}

.user-details {
    display: flex;
    flex-direction: column;
}

#user-name {
    font-size: 14px;
    font-weight: 600;
}

.quota-text {
    font-size: 11px;
    color: var(--success);
    margin-top: 2px;
}

/* 模块视图区样式 */
.viewport {
    flex: 1;
    position: relative;
    overflow: hidden;
    background: url('https://www.svgbackgrounds.com/wp-content/uploads/2021/05/liquid-cheese-background.svg') center/cover no-repeat;
}

/* SVG 动态背景遮罩 */
.viewport::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(15, 17, 26, 0.85); /* 降低背景亮度以凸显内容 */
    z-index: 0;
}

.module-view {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    padding: 30px;
    display: none;
    z-index: 1;
    overflow-y: auto;
}

.module-view.active {
    display: flex;
    animation: fadeIn 0.4s ease forwards;
}

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

.module-layout {
    background: var(--panel-bg);
    backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

.module-layout.full-height {
    height: 100%;
}

.split-view {
    flex-direction: row;
    height: 100%;
}

.left-panel {
    flex: 1;
    padding: 30px;
    border-right: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    gap: 20px;
    overflow-y: auto;
}

.right-panel {
    flex: 1.5;
    padding: 30px;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.left-panel h3, .right-panel h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #fff;
    font-weight: 600;
}

/* 通用 UI 控件 */
.control-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 15px;
}

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

select, textarea {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--glass-border);
    color: var(--text-main);
    border-radius: 12px;
    padding: 12px 16px;
    font-family: inherit;
    font-size: 14px;
    outline: none;
    transition: all 0.3s ease;
}

select {
    appearance: none;
    cursor: pointer;
}

select:hover, textarea:focus {
    border-color: var(--accent-color);
}

select option {
    background: var(--bg-dark);
    color: white;
}

textarea {
    resize: vertical;
    line-height: 1.5;
}

/* 按钮组件 */
button {
    border: none;
    font-family: inherit;
    cursor: pointer;
    border-radius: 12px;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.primary-btn {
    background: var(--accent-color);
    color: white;
    padding: 12px 24px;
    font-weight: 600;
    font-size: 14px;
}

.primary-btn:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(139, 92, 246, 0.4);
}

.secondary-btn {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 1px solid var(--glass-border);
    padding: 10px 20px;
    font-size: 14px;
}

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

.secondary-btn.small {
    padding: 6px 12px;
    font-size: 12px;
    border-radius: 8px;
}

.icon-btn {
    background: transparent;
    color: var(--text-muted);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    padding: 0;
}

.icon-btn:hover {
    color: var(--danger);
    background: rgba(239, 68, 68, 0.1);
}

.full-width {
    width: 100%;
}

.mode-cards {
    display: flex;
    gap: 12px;
}

.mode-card {
    flex: 1;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 500;
}

.mode-card:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
}

.mode-card.active {
    background: rgba(139, 92, 246, 0.2);
    border-color: var(--accent-color);
    color: var(--text-main);
}

.mode-card.active i {
    color: var(--accent-color);
}

/* 智能中枢模块样式 */
.chat-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 30px;
    border-bottom: 1px solid var(--glass-border);
    background: rgba(0, 0, 0, 0.2);
}

.chat-display {
    flex: 1;
    padding: 30px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.message {
    max-width: 80%;
    padding: 14px 18px;
    border-radius: 16px;
    line-height: 1.6;
    font-size: 15px;
    word-wrap: break-word;
    white-space: pre-wrap;
    position: relative;
}

.message.system {
    align-self: center;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-muted);
    font-size: 13px;
    border-radius: 20px;
    padding: 8px 16px;
}

.message.user {
    align-self: flex-end;
    background: var(--accent-color);
    color: white;
    border-bottom-right-radius: 4px;
}

.message.ai {
    align-self: flex-start;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-bottom-left-radius: 4px;
}

.read-aloud-btn {
    position: absolute;
    right: -40px;
    bottom: 0;
    background: var(--panel-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-muted);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: 0.2s;
    opacity: 0;
}

.message.ai:hover .read-aloud-btn {
    opacity: 1;
}

.read-aloud-btn:hover {
    color: var(--accent-color);
    border-color: var(--accent-color);
}

.chat-input-area {
    padding: 20px 30px;
    border-top: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    gap: 12px;
    background: rgba(0, 0, 0, 0.2);
}

#chat-attachment-preview {
    display: flex;
    align-items: center;
    position: relative;
    width: 60px;
    height: 60px;
    border-radius: 8px;
    border: 1px solid var(--glass-border);
    overflow: hidden;
}

#chat-image-preview {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

#chat-remove-attachment {
    position: absolute;
    top: 2px;
    right: 2px;
    background: rgba(0, 0, 0, 0.6);
    color: white;
    border: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    font-size: 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chat-input-wrapper {
    display: flex;
    gap: 16px;
    align-items: flex-end;
}

#chat-input {
    flex: 1;
    min-height: 50px;
    max-height: 150px;
    margin: 0;
    padding: 14px;
}

#chat-send-btn {
    width: 50px;
    height: 50px;
    border-radius: 14px;
    padding: 0;
    font-size: 18px;
    flex-shrink: 0;
}

.typing-indicator {
    display: inline-block;
    width: 6px;
    height: 16px;
    background: var(--accent-color);
    margin-left: 4px;
    animation: blink 1s infinite;
}

@keyframes blink { 50% { opacity: 0; } }

/* 视觉工坊模块样式 */
.ratio-selector {
    display: flex;
    gap: 12px;
}

.ratio-option {
    flex: 1;
    cursor: pointer;
}

.ratio-option input {
    display: none;
}

.ratio-box {
    height: 60px;
    background: rgba(0, 0, 0, 0.3);
    border: 2px solid var(--glass-border);
    border-radius: 8px;
    margin-bottom: 8px;
    transition: 0.2s;
}

.ratio-box.square { width: 100%; }
.ratio-box.landscape { width: 100%; height: 40px; margin-top: 10px; margin-bottom: 18px; }
.ratio-box.portrait { width: 60%; margin: 0 auto 8px auto; }
.ratio-box.portrait-34 { width: 75%; height: 60px; margin: 0 auto 8px auto; }

.ratio-option input:checked ~ .ratio-box {
    border-color: var(--accent-color);
    background: rgba(139, 92, 246, 0.1);
}

.ratio-option span {
    display: block;
    text-align: center;
    font-size: 12px;
    color: var(--text-muted);
}

.ratio-option input:checked ~ span {
    color: var(--accent-color);
    font-weight: 600;
}

.prompt-tools {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 8px;
}

.gallery {
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.4);
    border-radius: 0 20px 20px 0;
}

.gallery-placeholder {
    text-align: center;
    color: var(--text-muted);
}

.gallery-placeholder i {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

#img-result-container {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 20px;
}

#img-result {
    max-width: 100%;
    max-height: 70vh;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    object-fit: contain;
}

.image-actions {
    display: flex;
    gap: 16px;
}

/* 声音实验室模块样式 */
.stt-container {
    display: flex;
    flex: 1;
    min-height: 0;
    flex-direction: column;
}

.mic-circle {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
    color: var(--text-muted);
    cursor: pointer;
    transition: 0.3s;
    margin: 40px auto 20px auto;
    flex-shrink: 0;
}

.mic-circle:hover {
    background: rgba(139, 92, 246, 0.1);
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.mic-circle:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 4px;
}

.mic-circle:disabled {
    cursor: not-allowed;
    opacity: 0.55;
    transform: none;
}

.mic-circle.recording {
    background: rgba(239, 68, 68, 0.1);
    border-color: var(--danger);
    color: var(--danger);
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.4); }
    70% { box-shadow: 0 0 0 20px rgba(239, 68, 68, 0); }
    100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
}

#stt-status {
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 12px;
}

.stt-meta {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 24px;
    color: var(--text-muted);
    font-size: 12px;
}

.stt-meta span {
    min-width: 74px;
    padding: 5px 10px;
    text-align: center;
    border: 1px solid var(--glass-border);
    border-radius: 999px;
    background: rgba(0, 0, 0, 0.2);
}

.stt-result-area {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 20px;
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
}

.stt-result {
    flex: 1;
    margin-top: 10px;
    font-size: 15px;
    line-height: 1.6;
    overflow-y: auto;
    color: var(--text-main);
    white-space: pre-wrap;
}

.stt-actions {
    display: flex;
    justify-content: flex-end;
    margin-top: 14px;
}

.stt-summary {
    margin-top: 18px;
    padding-top: 16px;
    border-top: 1px solid var(--glass-border);
}

.stt-summary h4 {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--accent-hover);
}

.stt-summary-text {
    margin-top: 10px;
    color: var(--text-main);
    font-size: 14px;
    line-height: 1.7;
}

.stt-summary-text ul,
.stt-summary-text ol {
    margin-left: 18px;
}

/* 云端生产力模块样式 */
.notes-header {
    padding: 24px 30px;
    border-bottom: 1px solid var(--glass-border);
    background: rgba(0, 0, 0, 0.2);
}

.notes-header h3 {
    font-size: 20px;
    color: #fff;
    margin-bottom: 8px;
}

.notes-editor {
    flex: 1;
    display: flex;
}

#notes-textarea {
    flex: 1;
    border: none;
    border-radius: 0;
    background: transparent;
    padding: 30px;
    font-size: 16px;
    line-height: 1.8;
}

#notes-textarea:focus {
    box-shadow: none;
}

.notes-footer {
    padding: 16px 30px;
    border-top: 1px solid var(--glass-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(0, 0, 0, 0.2);
}

/* 全局弹窗遮罩样式 */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--panel-bg);
    border: 1px solid var(--glass-border);
    padding: 30px 40px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.modal-content i {
    color: var(--accent-color);
}

/* Markdown 渲染样式 */
.markdown-body {
    font-size: 15px;
    line-height: 1.6;
}

.markdown-body p {
    margin-bottom: 12px;
}

.markdown-body p:last-child {
    margin-bottom: 0;
}

.markdown-body code:not(pre code) {
    background: rgba(255, 255, 255, 0.1);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: Consolas, monospace;
    font-size: 13px;
    color: #e2e8f0;
}

.markdown-body pre {
    background: #0d1117;
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    padding: 16px;
    margin: 12px 0;
    overflow-x: auto;
    position: relative;
}

.markdown-body pre code {
    font-family: Consolas, monospace;
    font-size: 13px;
    line-height: 1.5;
}

.markdown-body ul, .markdown-body ol {
    margin-left: 20px;
    margin-bottom: 12px;
}

.markdown-body blockquote {
    border-left: 4px solid var(--accent-color);
    padding-left: 12px;
    color: var(--text-muted);
    margin: 12px 0;
    background: rgba(255, 255, 255, 0.05);
    padding-top: 8px;
    padding-bottom: 8px;
    border-radius: 0 8px 8px 0;
}

/* 代码复制按钮样式 */
.copy-code-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--text-muted);
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 12px;
    cursor: pointer;
    transition: 0.2s;
    display: flex;
    align-items: center;
    gap: 4px;
    opacity: 0;
}

.markdown-body pre:hover .copy-code-btn {
    opacity: 1;
}

.copy-code-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
}