/* =============================================================================
   短视频内容生产助手 - 主样式文件
   版本: 3.0
   作者: AI Assistant
   描述: 现代化设计风格，支持响应式布局和人机协作界面
============================================================================= */

/* CSS变量定义 - 统一的设计系统 */
:root {
    /* 主色调 */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #8b5cf6;
    
    /* 功能色彩 */
    --secondary: #f1f5f9;
    --accent: #06b6d4;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;
    
    /* 中性色彩 */
    --dark: #1e293b;
    --light: #f8fafc;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* 边框和阴影 */
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 8px 16px -4px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* 圆角 */
    --radius-sm: 4px;
    --radius: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 9999px;
    
    /* 间距 */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing: 12px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    
    /* 字体 */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
    --font-mono: 'JetBrains Mono', Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace;
    
    /* 过渡效果 */
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* =============================================================================
   基础样式重置
============================================================================= */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: var(--dark);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 去除浏览器默认样式 */
button, input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

button {
    cursor: pointer;
}

img {
    max-width: 100%;
    height: auto;
}

/* =============================================================================
   主容器布局
============================================================================= */

.main-container {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    margin: 20px auto;
    max-width: 1600px;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

/* =============================================================================
   顶部导航区域
============================================================================= */

.top-navbar {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    padding: var(--spacing-lg) var(--spacing-xl);
    position: relative;
}

.top-navbar h1 {
    font-size: 2rem;
    font-weight: 700;
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.top-navbar p {
    font-size: 1rem;
    margin: var(--spacing-sm) 0 0 0;
    opacity: 0.9;
    text-align: center;
}

/* =============================================================================
   步骤导航
============================================================================= */

.steps-container {
    background: var(--secondary);
    padding: var(--spacing-lg) var(--spacing-xl);
    border-bottom: 1px solid var(--border);
}

.steps-nav {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: var(--spacing-md);
    max-width: 1200px;
    margin: 0 auto;
}

.step-card {
    background: white;
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    text-align: center;
    cursor: pointer;
    transition: var(--transition-slow);
    border: 2px solid transparent;
    box-shadow: var(--shadow);
    position: relative;
    min-height: 120px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.step-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px -4px rgba(0, 0, 0, 0.15);
}

.step-card.active {
    border-color: var(--primary);
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    transform: translateY(-2px);
}

.step-card.completed {
    border-color: var(--success);
    background: var(--success);
    color: white;
}

.step-card.completed::after {
    content: "✓";
    position: absolute;
    top: 8px;
    right: 8px;
    width: 20px;
    height: 20px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: bold;
}

.step-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
    display: block;
}

.step-title {
    font-size: 0.875rem;
    font-weight: 600;
    margin: 0 0 var(--spacing-xs) 0;
}

.step-subtitle {
    font-size: 0.75rem;
    opacity: 0.7;
    margin: 0;
}

/* =============================================================================
   主内容区域
============================================================================= */

.content-container {
    display: flex;
    min-height: 800px;
    max-width: 100%;
    overflow: hidden;
}

.content-main {
    flex: 1;
    min-width: 0; /* 防止内容撑破容器 */
    max-width: calc(100% - 420px); /* 确保为侧栏预留空间 */
    padding: var(--spacing-xl);
    overflow-x: hidden; /* 防止水平滚动 */
    word-wrap: break-word; /* 长文本自动换行 */
}

.content-sidebar {
    width: 400px;
    min-width: 400px; /* 确保最小宽度 */
    flex-shrink: 0; /* 防止被压缩 */
    background: var(--light);
    border-left: 1px solid var(--border);
    padding: var(--spacing-xl) var(--spacing-lg);
    overflow-y: auto;
    overflow-x: hidden; /* 防止水平滚动 */
}

.content-section {
    display: none;
    animation: fadeOut 0.2s ease-out;
}

.content-section.active {
    display: block;
    animation: fadeInUp 0.4s ease-out;
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* 页面标题 */
.section-header {
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.section-header h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--dark);
    margin: 0 0 var(--spacing-sm) 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing);
}

.section-header p {
    font-size: 1rem;
    color: var(--gray-600);
    margin: 0;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* =============================================================================
   表单样式
============================================================================= */

.form-card {
    background: white;
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    margin-bottom: var(--spacing-lg);
}

.form-card h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.form-label {
    font-weight: 600;
    color: var(--dark);
    margin-bottom: var(--spacing-sm);
    font-size: 0.875rem;
    display: block;
}

.form-control, .form-select {
    width: 100%;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    padding: var(--spacing) var(--spacing-md);
    transition: var(--transition);
    font-size: 0.875rem;
    background: white;
}

.form-control:focus, .form-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
    background: white;
}

.form-control::placeholder {
    color: var(--gray-400);
}

.form-text {
    font-size: 0.75rem;
    color: var(--gray-500);
    margin-top: var(--spacing-xs);
}

/* =============================================================================
   标签输入组件
============================================================================= */

.tag-input-container {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--spacing-sm);
    background: white;
    min-height: 80px;
    transition: var(--transition);
}

.tag-input-container:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.tags-display {
    min-height: 32px;
    margin-bottom: var(--spacing-sm);
}

.tag-item {
    display: inline-flex;
    align-items: center;
    background: var(--primary);
    color: white;
    padding: var(--spacing-xs) var(--spacing);
    border-radius: var(--radius-full);
    margin: 2px;
    font-size: 0.75rem;
    font-weight: 500;
    transition: var(--transition);
    cursor: pointer;
    gap: var(--spacing-xs);
}

.tag-item:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

.tag-item .remove-tag {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    border-radius: 50%;
    width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    cursor: pointer;
    transition: var(--transition);
}

.tag-item .remove-tag:hover {
    background: rgba(255, 255, 255, 0.3);
}

.tag-input {
    border: none;
    outline: none;
    width: 100%;
    padding: var(--spacing-xs) 0;
    font-size: 0.875rem;
}

.tag-input::placeholder {
    color: var(--gray-400);
}

/* =============================================================================
   按钮样式
============================================================================= */

.btn {
    border-radius: var(--radius);
    font-weight: 600;
    padding: var(--spacing) var(--spacing-lg);
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
    border: none;
    cursor: pointer;
    text-decoration: none;
    justify-content: center;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* 主要按钮 */
.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    border: none;
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 8px 16px -4px rgba(99, 102, 241, 0.4);
}

/* 轮廓按钮 */
.btn-outline-primary {
    border: 2px solid var(--primary);
    color: var(--primary);
    background: transparent;
}

.btn-outline-primary:hover:not(:disabled) {
    background: var(--primary);
    color: white;
}

/* 成功按钮 */
.btn-success {
    background: var(--success);
    color: white;
    border: none;
}

.btn-success:hover:not(:disabled) {
    background: #059669;
    transform: translateY(-1px);
}

/* 按钮尺寸 */
.btn-sm {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.8125rem;
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
}

/* =============================================================================
   AI分析结果区域
============================================================================= */

.ai-result {
    background: white;
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    margin-bottom: var(--spacing-lg);
    max-width: 100%;
    overflow-x: hidden; /* 防止水平溢出 */
    word-wrap: break-word; /* 长文本换行 */
}

.ai-result-header {
    display: flex;
    align-items: center;
    gap: var(--spacing);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border);
}

.ai-result-header h4 {
    margin: 0;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--dark);
}

.ai-result-content {
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--dark);
}

.ai-result-content h3, .ai-result-content h4, .ai-result-content h5 {
    color: var(--primary);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.ai-result-content ul, .ai-result-content ol {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing);
}

.ai-result-content li {
    margin-bottom: var(--spacing-xs);
}

/* AI建议区域 */
.ai-suggestions {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border: 1px solid #bae6fd;
    border-radius: var(--radius);
    padding: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.ai-suggestions h5 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: var(--spacing);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.ai-suggestions h6 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-700);
    margin: var(--spacing-md) 0 var(--spacing-sm) 0;
}

.suggestion-item {
    background: white;
    border: 1px solid #e0e7ff;
    border-radius: var(--radius-sm);
    padding: var(--spacing);
    margin-bottom: var(--spacing-sm);
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    max-width: 100%;
    overflow-x: hidden; /* 防止水平溢出 */
    word-wrap: break-word; /* 长文本换行 */
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
}

.suggestion-item:hover {
    border-color: var(--primary);
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

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

.suggestion-content {
    flex: 1;
    min-width: 0; /* 允许内容压缩 */
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--dark);
    word-break: break-all; /* 强制换行 */
    overflow-wrap: break-word;
}

.suggestion-actions {
    flex-shrink: 0; /* 不压缩按钮区域 */
    display: flex;
    gap: var(--spacing-xs);
    opacity: 0.7;
    transition: opacity var(--transition);
}

.suggestion-item:hover .suggestion-actions {
    opacity: 1;
}

/* 建议项目状态样式 */
.suggestion-item.processing {
    background-color: #fff3cd;
    border-color: #ffeaa7;
    opacity: 0.8;
}

.suggestion-item.added {
    background-color: #d4edda;
    border-color: #c3e6cb;
    animation: addedPulse 0.6s ease-in-out;
}

.suggestion-item.error-temp {
    background-color: #f8d7da;
    border-color: #f5c6cb;
    animation: errorShake 0.5s ease-in-out;
}

/* 添加成功动画 */
@keyframes addedPulse {
    0% { 
        background-color: #d4edda; 
        transform: scale(1); 
    }
    50% { 
        background-color: #c3e6cb; 
        transform: scale(1.02); 
    }
    100% { 
        background-color: #d4edda; 
        transform: scale(1); 
    }
}

/* 错误摇动动画 */
@keyframes errorShake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

/* 建议添加按钮样式 */
.suggestion-add-btn {
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius-xs);
    width: 28px;
    height: 28px;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.suggestion-add-btn:hover {
    background: var(--primary-dark);
    transform: scale(1.1);
}

/* 按钮状态样式 */
.suggestion-add-btn.loading {
    background: #f59e0b;
    animation: spin 1s linear infinite;
    cursor: not-allowed;
}

.suggestion-add-btn.success {
    background: #10b981;
    animation: successBounce 0.4s ease-in-out;
}

.suggestion-add-btn.error {
    background: #ef4444;
    animation: errorPulse 0.5s ease-in-out;
}

.suggestion-add-btn.disabled {
    background: #9ca3af;
    cursor: not-allowed;
    opacity: 0.6;
}

/* 按钮动画效果 */
@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes successBounce {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

@keyframes errorPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); background: #dc2626; }
}

.suggestion-actions button {
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius-xs);
    width: 24px;
    height: 24px;
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.suggestion-actions button:hover {
    background: var(--primary-dark);
    transform: scale(1.1);
}

/* =============================================================================
   加载动画
============================================================================= */

.loading-container {
    text-align: center;
    padding: var(--spacing-2xl) var(--spacing-lg);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--gray-200);
    border-top: 3px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-md);
}

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

.loading-text {
    font-size: 1rem;
    color: var(--dark);
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.loading-subtext {
    font-size: 0.875rem;
    color: var(--gray-600);
}

/* =============================================================================
   知识库侧边栏
============================================================================= */

.knowledge-sidebar {
    background: white;
}

.knowledge-header {
    padding: var(--spacing-md) 0 var(--spacing-lg) 0;
    border-bottom: 1px solid var(--border);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.knowledge-header h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--dark);
    margin: 0 0 var(--spacing-xs) 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.knowledge-header small {
    color: var(--gray-500);
}

.knowledge-section {
    margin-bottom: var(--spacing-xl);
}

.knowledge-section h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--dark);
    margin: 0 0 var(--spacing-md) 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.knowledge-list {
    min-height: 100px;
    max-height: 200px;
    overflow-y: auto;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--spacing);
    background: var(--gray-50);
}

.knowledge-item {
    background: white;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm) var(--spacing);
    margin-bottom: var(--spacing-sm);
    font-size: 0.8125rem;
    position: relative;
    transition: var(--transition);
    cursor: pointer;
    line-height: 1.4;
}

.knowledge-item:hover {
    border-color: var(--primary);
    background: #f8fafc;
}

.knowledge-item.selected {
    border-color: var(--primary);
    background: var(--primary);
    color: white;
}

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

.knowledge-item .remove-btn {
    position: absolute;
    top: var(--spacing-xs);
    right: var(--spacing-xs);
    background: var(--danger);
    color: white;
    border: none;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    font-size: 0.75rem;
    display: none;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.knowledge-item:hover .remove-btn {
    display: flex;
}

.knowledge-item .remove-btn:hover {
    background: #dc2626;
    transform: scale(1.1);
}

.knowledge-empty {
    text-align: center;
    color: var(--gray-400);
    font-size: 0.8125rem;
    padding: var(--spacing-lg);
    font-style: italic;
}

/* =============================================================================
   浮动操作按钮
============================================================================= */

.floating-actions {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: var(--spacing);
}

.floating-btn {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    border: none;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    cursor: pointer;
    transition: var(--transition-slow);
    backdrop-filter: blur(10px);
}

.floating-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-xl);
}

.floating-btn.primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
}

.floating-btn.success {
    background: var(--success);
    color: white;
}

/* =============================================================================
   通知系统
============================================================================= */

.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    max-width: 400px;
}

.toast {
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
    margin-bottom: var(--spacing);
    padding: var(--spacing-md) var(--spacing-lg);
    transition: var(--transition-slow);
    display: flex;
    align-items: center;
    gap: var(--spacing);
    font-size: 0.875rem;
    backdrop-filter: blur(10px);
}

.toast.success {
    border-color: var(--success);
    background: linear-gradient(135deg, #f0fdf4 0%, #ecfdf5 100%);
    color: #065f46;
}

.toast.error {
    border-color: var(--danger);
    background: linear-gradient(135deg, #fef2f2 0%, #fef1f1 100%);
    color: #991b1b;
}

.toast.info {
    border-color: var(--info);
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    color: #1e40af;
}

.toast.warning {
    border-color: var(--warning);
    background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
    color: #92400e;
}

/* =============================================================================
   交叉匹配可视化
============================================================================= */

.cross-match-container {
    background: white;
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    margin-bottom: var(--spacing-lg);
}

.match-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.match-card {
    background: var(--gray-50);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--spacing-md);
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.match-card:hover {
    border-color: var(--primary);
    background: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.match-card.selected {
    border-color: var(--primary);
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
}

.match-score {
    background: var(--accent);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-xs);
    font-size: 0.75rem;
    font-weight: 600;
    display: inline-block;
    margin-bottom: var(--spacing-sm);
}

.match-card h6 {
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.match-card p {
    font-size: 0.8125rem;
    margin-bottom: var(--spacing-xs);
    line-height: 1.4;
}

.match-card small {
    font-size: 0.75rem;
    opacity: 0.8;
    line-height: 1.3;
}

/* =============================================================================
   脚本展示区域
============================================================================= */

.script-container {
    background: white;
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    margin-bottom: var(--spacing-lg);
}

.script-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border);
}

.script-header h4 {
    margin: 0;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.script-content {
    font-family: var(--font-mono);
    background: var(--gray-50);
    border-radius: var(--radius);
    padding: var(--spacing-lg);
    font-size: 0.875rem;
    line-height: 1.6;
    white-space: pre-wrap;
    border: 1px solid var(--border);
    color: var(--dark);
}

/* =============================================================================
   响应式设计
============================================================================= */

/* 平板设备 */
@media (max-width: 1200px) {
    .content-container {
        flex-direction: column;
    }
    
    .content-sidebar {
        width: 100%;
        border-left: none;
        border-top: 1px solid var(--border);
        max-height: 500px;
    }
    
    .steps-nav {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .main-container {
        margin: 10px;
    }
}

/* 手机设备 */
@media (max-width: 768px) {
    .main-container {
        margin: 5px;
        border-radius: var(--radius-md);
    }
    
    .top-navbar {
        padding: var(--spacing-lg) var(--spacing-md);
        text-align: center;
    }
    
    .top-navbar h1 {
        font-size: 1.5rem;
    }
    
    .content-main, .content-sidebar {
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .steps-nav {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing);
    }
    
    .step-card {
        padding: var(--spacing-md);
        min-height: 100px;
    }
    
    .step-icon {
        font-size: 1.5rem;
    }
    
    .step-title {
        font-size: 0.8125rem;
    }
    
    .step-subtitle {
        font-size: 0.6875rem;
    }
    
    .floating-actions {
        bottom: var(--spacing-lg);
        right: var(--spacing-lg);
    }
    
    .floating-btn {
        width: 48px;
        height: 48px;
        font-size: 1rem;
    }
    
    .content-sidebar {
        padding: var(--spacing-md);
    }
    
    .knowledge-list {
        max-height: 150px;
    }
    
    .form-card {
        padding: var(--spacing-md);
    }
}

/* 小屏手机设备 */
@media (max-width: 480px) {
    .steps-nav {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .step-card {
        padding: var(--spacing);
        min-height: 80px;
    }
    
    .section-header h2 {
        font-size: 1.5rem;
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .form-card .row .col-md-6 {
        margin-bottom: var(--spacing-md);
    }
}

/* =============================================================================
   打印样式
============================================================================= */

@media print {
    body {
        background: white;
    }
    
    .main-container {
        box-shadow: none;
        margin: 0;
    }
    
    .floating-actions,
    .toast-container,
    .btn {
        display: none !important;
    }
    
    .content-container {
        flex-direction: column;
    }
    
    .content-sidebar {
        border: none;
        padding-top: var(--spacing-lg);
    }
    
    .ai-result,
    .form-card,
    .script-container {
        break-inside: avoid;
        page-break-inside: avoid;
    }
}

/* =============================================================================
   无障碍访问
============================================================================= */

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
    :root {
        --border: #000;
        --gray-600: #000;
        --gray-500: #333;
    }
    
    .btn-outline-primary {
        border-width: 2px;
    }
    
    .knowledge-item,
    .suggestion-item {
        border-width: 2px;
    }
}

/* 减少动画效果 */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .step-card:hover {
        transform: none;
    }
    
    .floating-btn:hover {
        transform: none;
    }
}

/* 焦点样式 */
*:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

button:focus,
.btn:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* 确保足够的颜色对比度 */
.text-muted {
    color: var(--gray-600) !important;
}

/* 工具提示样式 */
[title] {
    cursor: help;
}

/* =============================================================================
   自定义滚动条
============================================================================= */

/* Webkit浏览器 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
    border-radius: var(--radius);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: var(--radius);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-400);
}

/* Firefox */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--gray-300) var(--gray-100);
}