/* GeniusWriter 简约扁平化设计 */
/* 简洁大气，扁平化按钮 */

:root {
    /* 简约色调 */
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --primary-light: #60a5fa;
    --secondary: #6b7280;
    --accent: #10b981;
    
    /* 中性色 - 更少的色调 */
    --white: #ffffff;
    --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;
    
    /* 功能色 */
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --info: #3b82f6;
    
    /* 字体 */
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    --font-mono: 'SF Mono', 'Consolas', 'Monaco', monospace;
    
    /* 布局 */
    --container: 1200px;
    --radius: 8px;
    --radius-sm: 4px;
    --radius-lg: 12px;
    
    /* 阴影 - 更少的阴影 */
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.05);
    
    /* 过渡 */
    --transition: 200ms ease;
}

/* 重置和基础 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* 排版 */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.25;
    margin-bottom: 1rem;
    color: var(--gray-900);
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: 1rem;
    color: var(--gray-600);
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--primary-dark);
}

/* 按钮 - 扁平化设计 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius);
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    background-color: var(--gray-100);
    color: var(--gray-800);
    border: 1px solid transparent;
}

.btn:hover {
    background-color: var(--gray-200);
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
}

.btn-secondary {
    background-color: var(--white);
    color: var(--gray-700);
    border: 1px solid var(--gray-300);
}

.btn-secondary:hover {
    background-color: var(--gray-50);
    border-color: var(--gray-400);
}

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

.btn-warning {
    background-color: var(--warning);
    color: var(--white);
    border-color: var(--warning);
}

.btn-error {
    background-color: var(--error);
    color: var(--white);
    border-color: var(--error);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-icon {
    width: 2.5rem;
    height: 2.5rem;
    padding: 0;
    border-radius: 50%;
    background-color: transparent;
    color: var(--gray-600);
}

.btn-icon:hover {
    background-color: var(--gray-100);
    color: var(--gray-800);
}

/* 导航栏 - 简洁设计 */
.navbar {
    background-color: var(--white);
    border-bottom: 1px solid var(--gray-200);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
}

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

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--gray-700);
    padding: 0.5rem 0;
    position: relative;
    font-weight: 500;
}

.nav-links a:hover {
    color: var(--primary);
}

.nav-links a.active {
    color: var(--primary);
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--primary);
}

/* 智能体面板 */
.agent-panel {
    position: fixed;
    top: 0;
    right: 0;
    width: 400px;
    height: 100vh;
    background-color: var(--white);
    border-left: 1px solid var(--gray-200);
    z-index: 101;
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform var(--transition);
}

.agent-panel:not(.hidden) {
    transform: translateX(0);
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem;
    border-bottom: 1px solid var(--gray-200);
}

.panel-content {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
}

.agent-tier {
    margin-bottom: 2rem;
}

.agent-tier h4 {
    margin-bottom: 1rem;
    color: var(--gray-700);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.agent-cards {
    display: grid;
    gap: 1rem;
}

.agent-card {
    background-color: var(--gray-50);
    border-radius: var(--radius);
    padding: 1rem;
    border: 1px solid var(--gray-200);
}

.agent-card h5 {
    margin-bottom: 0.5rem;
    color: var(--gray-900);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.agent-card p {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin-bottom: 0;
}

.close-btn {
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    color: var(--gray-600);
    padding: 0.25rem;
    border-radius: 50%;
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.close-btn:hover {
    background-color: var(--gray-100);
    color: var(--gray-800);
}

/* 主要内容区域 */
main {
    padding: 3rem 0;
}

/* 英雄区域 - 简化 */
.hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-bottom: 4rem;
}

.hero-content h1 {
    margin-bottom: 1.5rem;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: 2rem;
}

.hero-stats {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
}

.stat-card {
    text-align: center;
    padding: 1.5rem;
    background-color: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
}

.stat-card i {
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.stat-number {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

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

.hero-actions {
    display: flex;
    gap: 1rem;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.illustration {
    width: 300px;
    height: 300px;
    background-color: var(--gray-100);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.illustration i {
    position: absolute;
    font-size: 3rem;
    color: var(--gray-400);
}

.illustration i:nth-child(1) {
    top: 20%;
    left: 20%;
}

.illustration i:nth-child(2) {
    top: 50%;
    right: 20%;
    transform: translateY(-50%);
}

.illustration i:nth-child(3) {
    bottom: 20%;
    left: 50%;
    transform: translateX(-50%);
}

/* 功能区域 */
.features {
    margin-bottom: 4rem;
}

.features h2 {
    text-align: center;
    margin-bottom: 3rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background-color: var(--white);
    padding: 2rem;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    transition: border-color var(--transition);
}

.feature-card:hover {
    border-color: var(--primary);
}

.feature-icon {
    width: 3rem;
    height: 3rem;
    background-color: var(--gray-100);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.feature-icon i {
    font-size: 1.5rem;
    color: var(--primary);
}

.feature-card h3 {
    margin-bottom: 1rem;
    color: var(--gray-900);
}

.feature-card p {
    color: var(--gray-600);
    margin-bottom: 0;
}

/* 工作流程 - 简化 */
.workflow {
    margin-bottom: 4rem;
}

.workflow h2 {
    text-align: center;
    margin-bottom: 3rem;
}

.workflow-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    flex: 1;
    min-width: 150px;
}

.step-number {
    width: 3rem;
    height: 3rem;
    background-color: var(--gray-100);
    color: var(--gray-700);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    border: 2px solid var(--gray-200);
}

.step-content h3 {
    margin-bottom: 0.5rem;
    color: var(--gray-900);
    font-size: 1.125rem;
}

.step-content p {
    color: var(--gray-600);
    font-size: 0.875rem;
    margin-bottom: 0;
}

.step-arrow {
    color: var(--gray-400);
    font-size: 1.25rem;
}

/* 快速开始 */
.quick-start {
    margin-bottom: 4rem;
}

.quick-start h2 {
    text-align: center;
    margin-bottom: 3rem;
}

.quick-start-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: start;
}

.instructions {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.instruction {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.instruction-icon {
    width: 3rem;
    height: 3rem;
    background-color: var(--gray-100);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.instruction-icon i {
    font-size: 1.25rem;
    color: var(--primary);
}

.instruction-text h4 {
    margin-bottom: 0.5rem;
    color: var(--gray-900);
    font-size: 1.125rem;
}

.instruction-text p {
    color: var(--gray-600);
    margin-bottom: 0;
}

.cta-box {
    background-color: var(--gray-50);
    padding: 2rem;
    border-radius: var(--radius);
    border: 1px solid var(--gray-200);
    text-align: center;
}

.cta-box h3 {
    margin-bottom: 1rem;
    color: var(--gray-900);
}

.cta-box p {
    margin-bottom: 1.5rem;
    color: var(--gray-600);
}

.cta-box .btn {
    width: 100%;
}

/* 配置页面 */
.config-container {
    padding: 2rem 0;
}

.config-header {
    margin-bottom: 2rem;
    text-align: center;
}

.config-header .subtitle {
    color: var(--gray-600);
    font-size: 1.125rem;
}

.config-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
}

.config-section {
    background-color: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem;
    background-color: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
}

.section-actions {
    display: flex;
    gap: 0.5rem;
}

.config-form {
    padding: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--gray-800);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-family: var(--font-sans);
    font-size: 1rem;
    background-color: var(--white);
    transition: border-color var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.form-help {
    display: block;
    margin-top: 0.5rem;
    font-size: 0.875rem;
    color: var(--gray-600);
}

/* 创作页面 */
.writing-container {
    padding: 2rem 0;
}

.writing-controls {
    background-color: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    margin-bottom: 2rem;
}

.controls-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem;
    background-color: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
}

.controls-actions {
    display: flex;
    gap: 0.5rem;
}

/* 页脚 */
.footer {
    background-color: var(--gray-900);
    color: var(--white);
    padding: 3rem 0 1.5rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    color: var(--white);
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

.footer-section p {
    color: var(--gray-400);
    margin-bottom: 0;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--gray-400);
}

.footer-section a:hover {
    color: var(--white);
}

.footer-bottom {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid var(--gray-800);
    color: var(--gray-500);
    font-size: 0.875rem;
}

/* 实用类 */
.hidden {
    display: none !important;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .config-grid {
        grid-template-columns: 1fr;
    }
    
    .quick-start-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    .navbar .container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .workflow-steps {
        flex-direction: column;
        gap: 1rem;
    }
    
    .step-arrow {
        transform: rotate(90deg);
    }
    
    .agent-panel {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .hero-actions {
        flex-direction: column;
    }
    
    .hero-actions .btn {
        width: 100%;
    }
    
    .illustration {
        width: 250px;
        height: 250px;
    }
    
    .illustration i {
        font-size: 2.5rem;
    }
}