/* ==================== AI海报生成 - 样式文件 ==================== */

/* ==================== CSS变量 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 颜色系统 */
    --primary: #6366f1;
    --primary-light: #818cf8;
    --primary-dark: #4f46e5;
    --secondary: #ec4899;
    --accent: #f59e0b;

    /* 背景色 */
    --bg-primary: #0f0f1a;
    --bg-secondary: #1a1a2e;
    --bg-tertiary: #252540;
    --bg-elevated: #2a2a45;
    --bg-hover: #303050;

    /* 文字颜色 */
    --text-primary: #ffffff;
    --text-secondary: #a0a0b8;
    --text-tertiary: #6a6a80;

    /* 边框 */
    --border: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(99, 102, 241, 0.3);

    /* 渐变 */
    --gradient-primary: linear-gradient(135deg, #6366f1, #8b5cf6);
    --gradient-secondary: linear-gradient(135deg, #ec4899, #f43f5e);
    --gradient-accent: linear-gradient(135deg, #f59e0b, #fbbf24);

    /* 阴影 */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.3);

    /* 圆角 */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 9999px;

    /* 过渡 */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 浅色主题 */
body.light-theme {
    --bg-primary: #f5f5f7;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f0f0f2;
    --bg-elevated: #e8e8ea;
    --bg-hover: #d8d8da;

    --text-primary: #1d1d1f;
    --text-secondary: #6e6e73;
    --text-tertiary: #a1a1a6;

    --border: rgba(0, 0, 0, 0.1);
    --border-hover: rgba(99, 102, 241, 0.3);

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* ==================== 主题切换按钮 ==================== */
.theme-btn {
    width: 40px;
    height: 40px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 18px;
    cursor: pointer;
    transition: var(--transition);
}

.theme-btn:hover {
    background: var(--bg-hover);
    transform: scale(1.05);
}

/* ==================== 顶部导航 ==================== */
.header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    font-size: 28px;
}

.logo-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.logo-text {
    font-size: 18px;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.logo-slogan {
    font-size: 11px;
    color: var(--text-tertiary);
    font-weight: 400;
    letter-spacing: 0.5px;
}

.logo-badge {
    background: var(--gradient-secondary);
    color: white;
    font-size: 10px;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: var(--radius-full);
}

.main-nav {
    display: flex;
    gap: 4px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.nav-item:hover {
    background: var(--bg-elevated);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--gradient-primary);
    color: white;
}

.nav-icon {
    font-size: 16px;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.api-status {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    font-size: 13px;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    animation: pulse 2s infinite;
}

.status-dot.active {
    background: #10b981;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.status-text {
    color: var(--text-secondary);
}

.settings-btn {
    width: 40px;
    height: 40px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 18px;
    cursor: pointer;
    transition: var(--transition);
}

.settings-btn:hover {
    background: var(--bg-hover);
    transform: scale(1.05);
}

/* ==================== 主容器 ==================== */
.main-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 24px;
}

.page {
    display: none;
}

.page.active {
    display: block;
}

/* ==================== 首页 ==================== */
.hero-section {
    text-align: center;
    padding: 60px 20px;
}

.hero-title {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 16px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 48px;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    display: inline-block;
}

.hero-subtitle:hover {
    color: var(--text-primary);
}

.hero-subtitle:hover::after {
    content: '🔄';
    position: absolute;
    right: -30px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 14px;
    animation: spin 2s linear infinite;
}

@keyframes spin {
    from { transform: translateY(-50%) rotate(0deg); }
    to { transform: translateY(-50%) rotate(360deg); }
}

.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 48px;
}

.scenario-card {
    background: var(--bg-secondary);
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

.scenario-card:hover {
    border-color: var(--primary);
    background: var(--bg-elevated);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.scenario-icon {
    font-size: 40px;
    margin-bottom: 12px;
}

.scenario-name {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
}

.scenario-desc {
    font-size: 13px;
    color: var(--text-secondary);
}

/* 快速仿图区域 */
.quick-clone-section {
    max-width: 600px;
    margin: 0 auto;
}

.quick-clone-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
}

.quick-clone-area {
    background: var(--bg-secondary);
    border: 2px dashed var(--border);
    border-radius: var(--radius-lg);
    padding: 40px;
    cursor: pointer;
    transition: var(--transition);
}

.quick-clone-area:hover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.05);
}

.clone-icon {
    font-size: 48px;
    margin-bottom: 12px;
}

.clone-text {
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 4px;
}

.clone-hint {
    font-size: 13px;
    color: var(--text-secondary);
}

.clone-preview {
    position: relative;
}

.clone-preview img {
    max-width: 100%;
    max-height: 300px;
    border-radius: var(--radius-md);
}

.clone-remove {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 32px;
    height: 32px;
    background: var(--bg-elevated);
    border: none;
    border-radius: 50%;
    color: var(--text-primary);
    font-size: 20px;
    cursor: pointer;
}

.clone-remove:hover {
    background: #ef4444;
}

/* 功能介绍 */
.features-section {
    padding: 40px 20px;
}

.section-title {
    font-size: 28px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 32px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.feature-item {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 24px;
    text-align: center;
}

.feature-icon {
    font-size: 40px;
    margin-bottom: 12px;
}

.feature-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
}

.feature-desc {
    font-size: 13px;
    color: var(--text-secondary);
}

/* ==================== 页面头部 ==================== */
.page-header {
    text-align: center;
    padding: 40px 20px 32px;
}

.page-header h1 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 8px;
}

.page-header p {
    font-size: 16px;
    color: var(--text-secondary);
}

/* ==================== 工作区布局 ==================== */
.clone-workspace,
.text-workspace,
.template-workspace,
.redesign-workspace {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 24px;
}

/* ==================== 区块标签 ==================== */
.section-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

/* ==================== 上传区域 ==================== */
.upload-area {
    background: var(--bg-secondary);
    border: 2px dashed var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

.upload-area:hover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.05);
}

.upload-icon {
    font-size: 40px;
    margin-bottom: 12px;
}

.upload-text {
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 4px;
}

.upload-hint {
    font-size: 13px;
    color: var(--text-secondary);
}

.upload-preview {
    position: relative;
}

.upload-preview img {
    max-width: 100%;
    max-height: 250px;
    border-radius: var(--radius-md);
}

/* 多图预览容器 */
.upload-previews {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: 8px;
    margin-top: 12px;
}

.preview-item {
    position: relative;
    aspect-ratio: 1;
    border-radius: var(--radius-sm);
    overflow: hidden;
}

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

.preview-remove {
    position: absolute;
    top: 2px;
    right: 2px;
    width: 20px;
    height: 20px;
    background: rgba(0, 0, 0, 0.7);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 14px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.preview-remove:hover {
    background: #ef4444;
}

.upload-remove {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 32px;
    height: 32px;
    background: var(--bg-elevated);
    border: none;
    border-radius: 50%;
    color: var(--text-primary);
    font-size: 20px;
    cursor: pointer;
}

.upload-remove:hover {
    background: #ef4444;
}

/* ==================== 输入区域 ==================== */
.prompt-section,
.content-section {
    margin-bottom: 20px;
}

.prompt-textarea,
.text-input {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    transition: var(--transition);
}

.prompt-textarea {
    resize: vertical;
    min-height: 80px;
}

.text-input {
    padding: 10px 14px;
}

.prompt-textarea:focus,
.text-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* ==================== 选项区域 ==================== */
.options-section {
    margin-bottom: 20px;
}

.options-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

/* 海报比例选择网格 */
.aspect-ratio-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.aspect-ratio-item {
    background: var(--bg-tertiary);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    padding: 16px 12px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

.aspect-ratio-item:hover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.05);
}

.aspect-ratio-item.active {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
}

.ratio-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 60px;
    margin-bottom: 8px;
}

.ratio-shape {
    background: var(--primary);
    border-radius: 4px;
    transition: var(--transition);
}

.aspect-ratio-item:hover .ratio-shape {
    transform: scale(1.05);
}

.ratio-9-16 {
    width: 27px;
    height: 48px;
}

.ratio-3-4 {
    width: 36px;
    height: 48px;
}

.ratio-1-1 {
    width: 42px;
    height: 42px;
}

.ratio-16-9 {
    width: 56px;
    height: 32px;
}

.ratio-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.ratio-desc {
    font-size: 12px;
    color: var(--text-tertiary);
}

/* ==================== 清晰度选择 ==================== */
.quality-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.quality-item {
    background: var(--bg-tertiary);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    padding: 16px 12px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

.quality-item:hover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.05);
}

.quality-item.active {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
}

.quality-icon {
    font-size: 28px;
    margin-bottom: 8px;
}

.quality-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.quality-desc {
    font-size: 12px;
    color: var(--text-tertiary);
}

/* ==================== 一键改图 ==================== */
.analyze-result {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 16px;
    margin-bottom: 20px;
}

.analyze-item {
    margin-bottom: 16px;
}

.analyze-item:last-child {
    margin-bottom: 0;
}

.analyze-item label {
    display: block;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-weight: 500;
}

.analyze-item textarea,
.analyze-item input[type="text"] {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    transition: var(--transition);
}

.analyze-item textarea:focus,
.analyze-item input[type="text"]:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* ==================== 进度条 ==================== */
.progress-container {
    margin-top: 16px;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    transition: width 0.3s ease;
    width: 0%;
}

.progress-text {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 8px;
    font-size: 13px;
    color: var(--text-secondary);
}

.progress-status {
    display: flex;
    align-items: center;
    gap: 6px;
}

.progress-spinner {
    width: 14px;
    height: 14px;
    border: 2px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.option-item label {
    display: block;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 6px;
    font-weight: 500;
}

.option-select {
    width: 100%;
    padding: 8px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
}

.option-select:focus {
    outline: none;
    border-color: var(--primary);
}

/* ==================== 主题选择 ==================== */
.theme-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.theme-item {
    background: var(--bg-tertiary);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    padding: 12px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

.theme-item:hover {
    border-color: var(--primary);
}

.theme-item.active {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
}

.theme-icon {
    font-size: 24px;
    margin-bottom: 6px;
}

.theme-name {
    font-size: 13px;
    font-weight: 500;
}

/* ==================== 参考图上传 ==================== */
.ref-section {
    margin-bottom: 20px;
}

.ref-upload {
    background: var(--bg-secondary);
    border: 2px dashed var(--border);
    border-radius: var(--radius-md);
    padding: 24px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

.ref-upload:hover {
    border-color: var(--primary);
}

.ref-icon {
    font-size: 32px;
    margin-bottom: 8px;
}

.ref-text {
    font-size: 14px;
    color: var(--text-secondary);
}

.ref-preview {
    position: relative;
}

.ref-preview img {
    max-width: 100%;
    max-height: 150px;
    border-radius: var(--radius-sm);
}

.ref-remove {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 28px;
    height: 28px;
    background: var(--bg-elevated);
    border: none;
    border-radius: 50%;
    color: var(--text-primary);
    font-size: 16px;
    cursor: pointer;
}

.ref-remove:hover {
    background: #ef4444;
}

/* ==================== 模板选择 ==================== */
.template-grid-large {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.template-card {
    cursor: pointer;
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
}

.template-card:hover {
    transform: scale(1.02);
}

.template-preview {
    position: relative;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.template-preview.sale {
    background: linear-gradient(135deg, #ef4444, #dc2626);
}

.template-preview.product {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
}

.template-preview.event {
    background: linear-gradient(135deg, #f59e0b, #d97706);
}

.template-preview.minimal {
    background: linear-gradient(135deg, #6b7280, #4b5563);
}

.template-preview.fashion {
    background: linear-gradient(135deg, #ec4899, #db2777);
}

.template-preview.food {
    background: linear-gradient(135deg, #f97316, #ea580c);
}

.template-tag {
    position: absolute;
    top: 8px;
    left: 8px;
    background: rgba(0, 0, 0, 0.5);
    color: white;
    font-size: 11px;
    font-weight: 600;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
}

.template-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 12px;
}

.template-title {
    color: white;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 2px;
}

.template-desc {
    color: rgba(255, 255, 255, 0.8);
    font-size: 12px;
}

/* ==================== 生成按钮 ==================== */
.generate-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 24px;
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.generate-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.generate-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* ==================== 结果区域 ==================== */
.result-section {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 24px;
    height: fit-content;
}

.result-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.batch-toggle {
    padding: 6px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 12px;
    cursor: pointer;
    transition: var(--transition);
}

.batch-toggle:hover {
    border-color: var(--primary);
    color: var(--text-primary);
}

.batch-toggle.active {
    background: var(--gradient-primary);
    border-color: transparent;
    color: white;
}

.result-content {
    min-height: 300px;
}

.empty-result {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 300px;
    color: var(--text-tertiary);
}

.empty-icon {
    font-size: 60px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-text {
    font-size: 14px;
}

/* 生成结果网格 */
.results-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.result-item {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.result-item img {
    width: 100%;
    max-height: 400px;
    aspect-ratio: auto;
    object-fit: contain;
    cursor: pointer;
    transition: var(--transition);
    background: var(--bg-tertiary);
}

.result-item img:hover {
    transform: scale(1.02);
}

.result-actions {
    padding: 12px;
    display: flex;
    gap: 8px;
}

.result-btn {
    flex: 1;
    padding: 8px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 13px;
    cursor: pointer;
    transition: var(--transition);
}

.result-btn:hover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
}

/* ==================== 作品库 ==================== */
.gallery-content {
    min-height: 400px;
}

.empty-gallery {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 400px;
    color: var(--text-tertiary);
}

.empty-title {
    font-size: 18px;
    margin: 12px 0 8px;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.gallery-item {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
}

.gallery-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.gallery-placeholder {
    aspect-ratio: 3/4;
    background: var(--bg-tertiary);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.gallery-placeholder-icon {
    font-size: 40px;
    margin-bottom: 12px;
    opacity: 0.5;
}

.gallery-placeholder-text {
    font-size: 14px;
    color: var(--text-secondary);
}

.gallery-info {
    padding: 12px;
}

.gallery-title {
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 4px;
}

.gallery-time {
    font-size: 12px;
    color: var(--text-tertiary);
}

.gallery-actions {
    padding: 12px;
    display: flex;
    gap: 8px;
}

/* ==================== 弹窗 ==================== */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal.show {
    display: flex;
}

.modal-content {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 450px;
    overflow: hidden;
}

/* 图片预览弹窗 */
.image-modal {
    z-index: 2500;
}

.image-modal-content {
    max-width: 90vw;
    max-height: 90vh;
    background: transparent;
}

.image-modal-body {
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-modal-body img {
    max-width: 100%;
    max-height: 85vh;
    object-fit: contain;
    border-radius: var(--radius-lg);
}

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

.modal-header h2 {
    font-size: 18px;
    font-weight: 600;
}

.modal-close {
    width: 32px;
    height: 32px;
    background: var(--bg-tertiary);
    border: none;
    border-radius: 50%;
    color: var(--text-primary);
    font-size: 20px;
    cursor: pointer;
}

.modal-close:hover {
    background: #ef4444;
}

.modal-body {
    padding: 20px;
}

.api-section label {
    display: block;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-weight: 500;
}

.password-input {
    position: relative;
    display: flex;
}

.password-input input {
    flex: 1;
    padding: 12px 40px 12px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 14px;
}

.password-input input:focus {
    outline: none;
    border-color: var(--primary);
}

.visibility-toggle {
    position: absolute;
    right: 8px;
    width: 32px;
    height: 32px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
}

.api-hint {
    margin-top: 12px;
    padding: 10px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--text-secondary);
}

.modal-footer {
    display: flex;
    gap: 12px;
    padding: 20px;
    border-top: 1px solid var(--border);
}

.btn {
    flex: 1;
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

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

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-glow);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: var(--bg-hover);
}

/* ==================== Toast提示 ==================== */
.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    transition: var(--transition);
    z-index: 3000;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.toast-icon {
    font-size: 20px;
}

.toast-message {
    font-size: 14px;
}

/* ==================== 响应式 ==================== */

/* 移动端底部导航 */
.mobile-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 8px 0;
    z-index: 1000;
    box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.2);
}

.mobile-nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 8px 4px;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-tertiary);
    font-size: 11px;
    cursor: pointer;
    transition: var(--transition);
}

.mobile-nav-item:active {
    transform: scale(0.95);
}

.mobile-nav-item.active {
    color: var(--primary);
}

.mobile-nav-icon {
    font-size: 20px;
}

.mobile-nav-text {
    font-size: 11px;
    font-weight: 500;
}

@media (max-width: 1024px) {
    .clone-workspace,
    .text-workspace,
    .template-workspace,
    .redesign-workspace {
        grid-template-columns: 1fr;
    }

    .scenarios-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    /* 桌面导航隐藏 */
    .main-nav {
        display: none;
    }

    /* 显示移动端导航 */
    .mobile-nav {
        display: flex;
    }

    /* 主容器底部留出导航空间 */
    .main-container {
        padding-bottom: 80px;
    }

    /* Header优化 */
    .header-content {
        padding: 0 16px;
        height: 56px;
    }

    .logo-text {
        font-size: 16px;
    }

    /* 首页优化 */
    .hero-title {
        font-size: 28px;
    }

    .hero-subtitle {
        font-size: 14px;
    }

    .scenarios-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .scenario-card {
        padding: 16px;
    }

    .scenario-icon {
        font-size: 32px;
    }

    .scenario-name {
        font-size: 14px;
    }

    .scenario-desc {
        font-size: 12px;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .feature-item {
        padding: 16px;
    }

    .feature-icon {
        font-size: 32px;
    }

    .feature-title {
        font-size: 14px;
    }

    .feature-desc {
        font-size: 12px;
    }

    /* 快速仿图区域 */
    .quick-clone-area {
        padding: 24px;
    }

    .clone-icon {
        font-size: 36px;
    }

    /* 页面标题 */
    .page-header h1 {
        font-size: 24px;
    }

    .page-header p {
        font-size: 14px;
    }

    .page-header {
        padding: 24px 16px 20px;
    }

    /* 上传区域 */
    .upload-area {
        padding: 24px;
    }

    .upload-icon {
        font-size: 32px;
    }

    .upload-text {
        font-size: 14px;
    }

    .upload-hint {
        font-size: 12px;
    }

    /* 文本输入 */
    .prompt-textarea,
    .text-input {
        font-size: 16px;
        /* 防止iOS缩放 */
    }

    /* 选项网格 */
    .aspect-ratio-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }

    .quality-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 8px;
    }

    .aspect-ratio-item,
    .quality-item {
        padding: 12px 8px;
    }

    .ratio-icon {
        height: 50px;
    }

    .ratio-9-16 {
        width: 22px;
        height: 40px;
    }

    .ratio-3-4 {
        width: 30px;
        height: 40px;
    }

    .ratio-1-1 {
        width: 35px;
        height: 35px;
    }

    .ratio-16-9 {
        width: 45px;
        height: 25px;
    }

    .quality-icon {
        font-size: 24px;
    }

    .ratio-name,
    .quality-name {
        font-size: 13px;
    }

    .ratio-desc,
    .quality-desc {
        font-size: 11px;
    }

    /* 按钮优化 */
    .generate-btn {
        padding: 12px 20px;
        font-size: 15px;
        /* 增大触摸区域 */
        min-height: 48px;
    }

    /* 结果区域 */
    .result-section {
        padding: 16px;
    }

    .results-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .result-item img {
        max-height: 300px;
    }

    /* 模板卡片 */
    .template-grid-large {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .template-preview {
        height: 100px;
    }

    .template-title {
        font-size: 13px;
    }

    .template-desc {
        font-size: 11px;
    }

    /* 主题选择 */
    .theme-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .theme-item {
        padding: 12px;
    }

    .theme-icon {
        font-size: 20px;
    }

    .theme-name {
        font-size: 13px;
    }

    /* 分析结果 */
    .analyze-result {
        padding: 12px;
    }

    .analyze-item {
        margin-bottom: 12px;
    }

    .analyze-item label {
        font-size: 12px;
    }

    /* 弹窗优化 */
    .modal {
        padding: 16px;
    }

    .modal-content {
        max-width: 100%;
    }

    .modal-header,
    .modal-body,
    .modal-footer {
        padding: 16px;
    }

    /* Toast优化 */
    .toast {
        max-width: 90%;
        padding: 10px 16px;
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    /* 超小屏幕优化 */
    .aspect-ratio-grid {
        gap: 6px;
    }

    .quality-grid {
        gap: 6px;
    }

    .template-grid-large {
        grid-template-columns: 1fr;
    }

    .theme-grid {
        grid-template-columns: 1fr;
    }

    .scenarios-grid {
        grid-template-columns: 1fr;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }
}