:root {
    /* Authentic Anthropic Color System */
    --color-primary: #d97757;        /* Anthropic's actual orange-red */
    --color-primary-light: #e89d85;
    --color-primary-dark: #c86641;
    --color-secondary: #87867f;      /* Anthropic's gray */
    --color-success: #059669;
    --color-warning: #d97757;
    --color-error: #dc2626;
    
    /* Anthropic's Actual Gray Palette */
    --color-gray-50: #faf9f7;       /* Ivory light */
    --color-gray-100: #f5f4f1;      /* Ivory */
    --color-gray-200: #e8e6dc;      /* Light cream */
    --color-gray-300: #d1cfca;
    --color-gray-400: #a1a0a0;      /* From Anthropic site */
    --color-gray-500: #87867f;      /* Anthropic's main gray */
    --color-gray-600: #6d6c65;
    --color-gray-700: #44403c;
    --color-gray-800: #3d3d3a;      /* From Anthropic site */
    --color-gray-900: #141413;      /* Anthropic's dark */
    
    /* Anthropic Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #faf9f7;        /* Ivory light */
    --bg-tertiary: #f5f4f1;         /* Ivory */
    --bg-dark: #141413;
    --bg-card: rgba(255, 255, 255, 0.95);
    --bg-glass: rgba(255, 255, 255, 0.85);
    
    /* Anthropic Text Colors */
    --text-primary: #141413;
    --text-secondary: #44403c;
    --text-tertiary: #87867f;
    --text-inverse: #ffffff;
    
    /* Simplified Gradients */
    --gradient-primary: linear-gradient(135deg, #d97757 0%, #c86641 100%);
    --gradient-secondary: linear-gradient(135deg, #faf9f7 0%, #f5f4f1 100%);
    --gradient-accent: linear-gradient(135deg, #e8e6dc 0%, #d1cfca 100%);
    
    /* Anthropic Spacing - More generous */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Typography - Anthropic uses clean, readable fonts */
    --font-family-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    --font-family-mono: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', monospace;
    
    /* Font Sizes */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;
    
    /* Line Heights */
    --leading-tight: 1.25;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;
    
    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
    
    /* Transitions */
    --transition-fast: all 0.15s ease;
    --transition-base: all 0.2s ease;
    --transition-slow: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family-sans);
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: var(--leading-tight);
    color: var(--text-primary);
}

.gradient-text {
    background: linear-gradient(
        135deg, 
        #d97757 0%,     /* Anthropic's main orange-red */
        #c86641 50%,    /* Darker variant */
        #87867f 100%    /* Anthropic's signature gray */
    );
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
    position: relative;
    /* Clean, minimal shadow like Anthropic */
    filter: drop-shadow(0 1px 2px rgba(217, 119, 87, 0.15));
    /* 备用纯色方案 */
    color: #d97757;
    /* Anthropic typography - clean spacing */
    letter-spacing: -0.01em;
}

/* Minimal background effect - very subtle like Anthropic */
.gradient-text::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        135deg,
        rgba(217, 119, 87, 0.03) 0%,
        rgba(135, 134, 127, 0.02) 100%
    );
    border-radius: 4px;
    z-index: -1;
    filter: blur(6px);
    opacity: 0.5;
}

/* 对于不支持background-clip的浏览器的备用方案 */
@supports not (-webkit-background-clip: text) {
    .gradient-text {
        background: none;
        color: #d97757;
        text-shadow: 0 1px 2px rgba(217, 119, 87, 0.1);
        font-weight: 600;
    }
}

/* 响应式调整 */
@media (max-width: 768px) {
    .gradient-text {
        font-weight: 600;
        letter-spacing: -0.005em;
    }
}

.gradient-text::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    border-radius: 8px;
    z-index: -1;
    filter: blur(20px);
}

/* Navigation - Authentic Anthropic Style */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    background: rgba(255, 255, 255, 0.95);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-gray-200);
    transition: var(--transition-base);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-weight: 600;
    font-size: 20px;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: -0.01em;
    transition: color 0.2s ease;
}

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

.nav-logo {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-primary);
}

.nav-title {
    font-weight: 600;
    color: var(--text-primary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav-link {
    font-weight: 500;
    font-size: 14px;
    color: var(--color-gray-600);
    text-decoration: none;
    padding: 8px 0;
    transition: color 0.2s ease;
    position: relative;
}

.nav-link:hover {
    color: var(--text-primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width 0.2s ease;
}

.nav-link:hover::after {
    width: 100%;
}

/* Mobile Navigation */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle span {
    width: 20px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s ease;
}

/* Card styles - Authentic Anthropic Design */
.card {
    background: white;
    border: 1px solid var(--color-gray-200);
    border-radius: 12px;
    padding: var(--space-lg);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    transition: all 0.2s ease;
}

.card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transform: translateY(-1px);
    border-color: var(--color-gray-300);
}

.card-header {
    margin-bottom: var(--space-md);
}

.card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
    line-height: 1.3;
}

.card-description {
    color: var(--color-gray-600);
    font-size: 14px;
    line-height: 1.5;
}

/* Footer styles - Anthropic minimalist design */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--color-gray-200);
    padding: var(--space-xl) 0;
    margin-top: auto;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    text-align: center;
}

.footer-text {
    color: var(--color-gray-600);
    font-size: 14px;
    margin-bottom: var(--space-sm);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-md);
}

.footer-link {
    color: var(--color-gray-600);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s ease;
}

.footer-link:hover {
    color: var(--color-primary);
}

/* Buttons - Authentic Anthropic Style */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    border: 1px solid transparent;
    border-radius: 12px;  /* Anthropic uses 12px radius */
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
    font-family: var(--font-family-sans);
}

.btn-primary {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    box-shadow: 0 2px 8px rgba(217, 119, 87, 0.2);
    transform: translateY(-1px);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--color-gray-300);
}

.btn-secondary:hover {
    background: var(--bg-secondary);
    border-color: var(--color-gray-400);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.05);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 16px;
    border-radius: 12px;
}

.btn-icon {
    font-size: 18px;
}

/* Hero Section */
/* Hero Section - Authentic Anthropic Style */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: var(--space-4xl) 0;
    background: linear-gradient(135deg, #ffffff 0%, #faf9f7 50%, #f5f4f1 100%);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
    opacity: 0.4;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(217, 119, 87, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(217, 119, 87, 0.02) 1px, transparent 1px);
    background-size: 80px 80px;
    animation: grid-move 40s linear infinite;
}

@keyframes grid-move {
    0% { transform: translate(0, 0); }
    100% { transform: translate(80px, 80px); }
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

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

.hero-badge {
    display: inline-block;
    padding: var(--space-sm) var(--space-lg);
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-xl);
    font-size: var(--text-sm);
    font-weight: 500;
    margin-bottom: var(--space-lg);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

.hero-title {
    font-size: var(--text-5xl);
    font-weight: 700;
    margin-bottom: var(--space-lg);
    line-height: var(--leading-tight);
}

.hero-subtitle {
    font-size: var(--text-xl);
    opacity: 0.9;
    margin-bottom: var(--space-2xl);
    line-height: var(--leading-relaxed);
}

.hero-actions {
    display: flex;
    gap: var(--space-lg);
    margin-bottom: var(--space-3xl);
}

.hero-stats {
    display: flex;
    gap: var(--space-2xl);
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: var(--text-2xl);
    font-weight: 700;
    margin-bottom: var(--space-xs);
}

.stat-label {
    font-size: var(--text-sm);
    opacity: 0.8;
}

/* Terminal Demo */
.hero-demo {
    display: flex;
    justify-content: center;
    align-items: center;
}

.terminal-demo {
    width: 100%;
    max-width: 600px;
    background: var(--color-gray-900);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl);
    overflow: hidden;
}

.terminal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md);
    background: var(--color-gray-800);
    border-bottom: 1px solid var(--color-gray-700);
}

.terminal-controls {
    display: flex;
    gap: var(--space-sm);
}

.control {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.control-close { background: #ff5f56; }
.control-minimize { background: #ffbd2e; }
.control-maximize { background: #27ca3f; }

.terminal-title {
    font-size: var(--text-sm);
    color: var(--color-gray-400);
    font-weight: 500;
}

.terminal-body {
    padding: var(--space-lg);
    font-family: var(--font-family-mono);
    font-size: var(--text-sm);
    line-height: 1.6;
}

.terminal-line {
    margin-bottom: var(--space-md);
}

.prompt {
    color: var(--color-success);
    font-weight: 600;
}

.command {
    color: white;
    margin-left: var(--space-sm);
}

.terminal-output {
    margin-top: var(--space-lg);
}

.output-line {
    margin-bottom: var(--space-sm);
    color: var(--color-gray-300);
    opacity: 0;
    animation: typing 0.5s ease forwards;
}

.output-line.typing {
    animation: typing 0.5s ease forwards;
}

.output-line.delay-1 { animation-delay: 0.5s; }
.output-line.delay-2 { animation-delay: 1s; }
.output-line.delay-3 { animation-delay: 1.5s; }
.output-line.delay-4 { animation-delay: 2s; }
.output-line.delay-5 { animation-delay: 2.5s; }

.output-line.success {
    color: var(--color-success);
    font-weight: 600;
}

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

/* Section Styles */
section {
    padding: var(--space-4xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-4xl);
}

.section-title {
    font-size: var(--text-4xl);
    font-weight: 700;
    margin-bottom: var(--space-lg);
}

.section-subtitle {
    font-size: var(--text-xl);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Features Section */
.features {
    background: var(--bg-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-2xl);
}

.feature-card {
    background: white;
    padding: var(--space-2xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-lg);
    color: white;
}

.feature-title {
    font-size: var(--text-xl);
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.feature-description {
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
    line-height: var(--leading-relaxed);
}

.feature-highlight {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: var(--gradient-accent);
    color: white;
    border-radius: var(--radius-xl);
    font-size: var(--text-sm);
    font-weight: 600;
}

/* Installation Section */
.installation {
    background: white;
}

.platform-tabs {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    margin-bottom: var(--space-3xl);
    flex-wrap: wrap;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    background: var(--color-gray-100);
    border: none;
    border-radius: var(--radius-lg);
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-fast);
}

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

.tab-btn:hover:not(.active) {
    background: var(--color-gray-200);
}

.tab-icon {
    font-size: var(--text-lg);
}

.installation-content {
    max-width: 800px;
    margin: 0 auto;
}

.install-step {
    display: none;
    margin-bottom: var(--space-3xl);
    padding: var(--space-2xl);
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    position: relative;
}

.install-step.active {
    display: flex;
    align-items: flex-start;
    gap: var(--space-xl);
}

.step-number {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--text-lg);
    flex-shrink: 0;
}

.step-content {
    flex: 1;
}

.step-content h3 {
    font-size: var(--text-xl);
    margin-bottom: var(--space-lg);
}

.code-block {
    background: var(--color-gray-900);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--space-lg);
    position: relative;
}

.code-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md);
    background: var(--color-gray-800);
    border-bottom: 1px solid var(--color-gray-700);
    color: var(--color-gray-300);
    font-size: var(--text-sm);
}

.copy-btn {
    background: none;
    border: none;
    color: var(--color-gray-400);
    cursor: pointer;
    padding: var(--space-xs);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.copy-btn:hover {
    color: white;
    background: var(--color-gray-700);
}

.code-block code {
    display: block;
    padding: var(--space-lg);
    font-family: var(--font-family-mono);
    color: white;
    background: none;
    white-space: pre-wrap;
    line-height: 1.6;
}

.config-note {
    margin-top: var(--space-lg);
}

.config-note p {
    color: var(--text-secondary);
    font-size: var(--text-sm);
}

.success-message {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-top: var(--space-lg);
    padding: var(--space-md);
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: var(--radius-lg);
    color: var(--color-success);
    font-weight: 500;
}

.success-icon {
    font-size: var(--text-lg);
}

/* API Key Section */
.api-key-section {
    margin-top: var(--space-4xl);
    display: flex;
    justify-content: center;
}

.api-card {
    max-width: 600px;
    background: white;
    border: 2px solid var(--color-primary);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.api-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.api-icon {
    font-size: var(--text-4xl);
    margin-bottom: var(--space-lg);
}

.api-content h3 {
    font-size: var(--text-2xl);
    margin-bottom: var(--space-md);
}

.api-content p {
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
}

.api-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.api-feature {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--text-sm);
}

.feature-check {
    color: var(--color-success);
    font-weight: 600;
}

/* Commands Section */
.commands {
    background: var(--bg-secondary);
}

.commands-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-2xl);
}

.command-category {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-md);
}

.category-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-lg);
    border-bottom: 2px solid var(--color-gray-100);
}

.category-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-xl);
}

.category-header h3 {
    font-size: var(--text-xl);
    font-weight: 600;
}

.command-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.command-item {
    padding: var(--space-lg);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    transition: var(--transition-fast);
}

.command-item:hover {
    background: var(--color-gray-100);
    transform: translateX(4px);
}

.command-syntax {
    margin-bottom: var(--space-sm);
}

.command-syntax code {
    font-family: var(--font-family-mono);
    font-weight: 600;
    color: var(--color-primary);
    background: rgba(99, 102, 241, 0.1);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
}

.command-desc {
    color: var(--text-secondary);
    font-size: var(--text-sm);
}

/* Examples Section */
.examples {
    background: white;
}

.examples-container {
    max-width: 1000px;
    margin: 0 auto;
}

.example-tabs {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    margin-bottom: var(--space-3xl);
    flex-wrap: wrap;
}

.example-tab {
    padding: var(--space-md) var(--space-xl);
    background: none;
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-fast);
}

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

.example-tab:hover:not(.active) {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.example-content {
    position: relative;
}

.example-panel {
    display: none;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.example-panel.active {
    display: grid;
}

.demo-terminal {
    background: var(--color-gray-900);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.demo-terminal .terminal-header {
    padding: var(--space-md);
    background: var(--color-gray-800);
    color: var(--color-gray-300);
    font-size: var(--text-sm);
    font-weight: 500;
    text-align: center;
}

.terminal-content {
    padding: var(--space-lg);
    font-family: var(--font-family-mono);
    font-size: var(--text-sm);
}

.example-description h3 {
    font-size: var(--text-2xl);
    margin-bottom: var(--space-lg);
}

.example-description p {
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
    line-height: var(--leading-relaxed);
}

.feature-list {
    list-style: none;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
    color: var(--text-secondary);
}

.feature-list li::before {
    content: '✓';
    color: var(--color-success);
    font-weight: 600;
    font-size: var(--text-lg);
}

/* CTA Section */
.cta {
    background: var(--gradient-primary);
    color: white;
    text-align: center;
}

.cta-icon {
    font-size: var(--text-6xl);
    margin-bottom: var(--space-lg);
}

.cta-title {
    font-size: var(--text-4xl);
    font-weight: 700;
    margin-bottom: var(--space-lg);
}

.cta-subtitle {
    font-size: var(--text-xl);
    opacity: 0.9;
    margin-bottom: var(--space-2xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
    flex-wrap: wrap;
}

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

.cta .btn-primary:hover {
    background: var(--color-gray-100);
}

.cta .btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border-color: rgba(255, 255, 255, 0.3);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

.cta .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
}

.cta-note {
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--text-sm);
}

/* Footer */
.footer {
    background: var(--color-gray-900);
    color: var(--color-gray-300);
    padding: var(--space-4xl) 0 var(--space-xl) 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-4xl);
    margin-bottom: var(--space-3xl);
}

.footer-brand {
    max-width: 300px;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.logo-icon {
    font-size: var(--text-2xl);
}

.logo-text {
    font-size: var(--text-xl);
    font-weight: 600;
    color: white;
}

.brand-desc {
    color: var(--color-gray-400);
    line-height: var(--leading-relaxed);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-2xl);
}

.link-group h4 {
    color: white;
    font-weight: 600;
    margin-bottom: var(--space-lg);
}

.link-group ul {
    list-style: none;
}

.link-group li {
    margin-bottom: var(--space-sm);
}

.link-group a {
    color: var(--color-gray-400);
    text-decoration: none;
    transition: var(--transition-fast);
}

.link-group a:hover {
    color: white;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-gray-800);
}

.footer-copyright p {
    color: var(--color-gray-500);
    font-size: var(--text-sm);
}

.footer-social {
    display: flex;
    gap: var(--space-md);
}

.social-link {
    width: 40px;
    height: 40px;
    background: var(--color-gray-800);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray-400);
    transition: var(--transition-fast);
}

.social-link:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-2px);
}

/* Modal */
.modal {
    position: fixed;
    inset: 0;
    z-index: var(--z-modal);
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
}

.modal.active {
    display: flex;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.8);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
}

.modal-content {
    position: relative;
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.95) 0%, rgba(248, 250, 252, 0.95) 100%);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-2xl);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 
        0 25px 50px -12px rgba(0, 0, 0, 0.25),
        0 0 0 1px rgba(255, 255, 255, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.5);
    animation: modal-enter 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
}

@keyframes modal-enter {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(-30px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-2xl) var(--space-2xl) var(--space-lg);
    border-bottom: 1px solid rgba(226, 232, 240, 0.8);
    background: linear-gradient(to bottom, rgba(255, 255, 255, 0.8), rgba(248, 250, 252, 0.6));
}

.modal-header h3 {
    font-size: var(--text-2xl);
    font-weight: 700;
    background: linear-gradient(135deg, #1e293b 0%, #475569 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.modal-close {
    background: rgba(248, 250, 252, 0.8);
    border: 1px solid rgba(226, 232, 240, 0.6);
    color: var(--color-gray-500);
    cursor: pointer;
    padding: var(--space-md);
    border-radius: var(--radius-lg);
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
}

.modal-close:hover {
    color: var(--color-gray-700);
    background: rgba(255, 255, 255, 0.9);
    border-color: rgba(203, 213, 225, 0.8);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.modal-body {
    padding: var(--space-lg) var(--space-2xl) var(--space-2xl);
    text-align: center;
    overflow-y: auto;
}

.modal-icon {
    font-size: 4rem;
    margin-bottom: var(--space-xl);
    display: inline-block;
    padding: var(--space-lg);
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border-radius: 50%;
    box-shadow: 
        0 10px 25px rgba(245, 158, 11, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

.modal-description {
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
    line-height: var(--leading-relaxed);
    font-size: var(--text-lg);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.modal-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
    text-align: left;
}

.modal-feature {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-size: var(--text-base);
    padding: var(--space-md);
    background: rgba(255, 255, 255, 0.6);
    border: 1px solid rgba(226, 232, 240, 0.5);
    border-radius: var(--radius-lg);
    transition: all 0.2s ease;
}

.modal-feature:hover {
    background: rgba(255, 255, 255, 0.8);
    border-color: rgba(203, 213, 225, 0.7);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.modal-feature .feature-icon {
    font-size: var(--text-xl);
    min-width: 24px;
}

.modal-config {
    background: linear-gradient(145deg, rgba(241, 245, 249, 0.8) 0%, rgba(248, 250, 252, 0.9) 100%);
    border: 1px solid rgba(226, 232, 240, 0.6);
    padding: var(--space-xl);
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-2xl);
    text-align: left;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.modal-config h4 {
    margin-bottom: var(--space-lg);
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--text-primary);
}

.config-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid rgba(226, 232, 240, 0.5);
    border-radius: var(--radius-lg);
}

.config-item label {
    font-weight: 600;
    color: var(--text-secondary);
    min-width: 80px;
}

.config-item code {
    font-family: var(--font-family-mono);
    background: linear-gradient(145deg, #f1f5f9 0%, #e2e8f0 100%);
    border: 1px solid rgba(203, 213, 225, 0.6);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-primary-dark);
    flex: 1;
}

.modal-actions {
    display: flex;
    gap: var(--space-lg);
    justify-content: center;
}

/* 快速开始指南样式 */
.quick-start-guide {
    background: linear-gradient(145deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    margin-bottom: var(--space-2xl);
    text-align: left;
}

.quick-start-guide h4 {
    color: var(--color-primary-dark);
    font-size: var(--text-xl);
    font-weight: 700;
    margin-bottom: var(--space-lg);
    text-align: center;
}

.start-steps {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.start-step {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-lg);
    transition: all 0.2s ease;
}

.start-step:hover {
    background: rgba(255, 255, 255, 0.9);
    border-color: rgba(99, 102, 241, 0.4);
    transform: translateX(4px);
}

.step-num {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: white;
    border-radius: 50%;
    font-weight: 700;
    font-size: var(--text-sm);
    flex-shrink: 0;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

.step-text {
    color: var(--text-primary);
    font-weight: 600;
    font-size: var(--text-base);
}

/* 强调按钮样式 */
.btn-accent {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    border: 1px solid #059669;
    box-shadow: 
        0 4px 12px rgba(16, 185, 129, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.btn-accent:hover {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    border-color: #047857;
    transform: translateY(-2px);
    box-shadow: 
        0 6px 20px rgba(16, 185, 129, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.cta-register {
    position: relative;
    overflow: hidden;
}

.cta-register::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.cta-register:hover::before {
    left: 100%;
}

.cta-visit {
    animation: pulse-green 2s infinite;
}

@keyframes pulse-green {
    0%, 100% {
        box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
    }
    50% {
        box-shadow: 0 4px 20px rgba(16, 185, 129, 0.5);
    }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
        text-align: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .example-panel {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: var(--text-4xl);
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--space-lg);
    }
    
    .platform-tabs {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .commands-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--space-lg);
        text-align: center;
    }
    
    .api-features {
        grid-template-columns: 1fr;
    }
    
    .modal-features {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    
    .modal-content {
        margin: var(--space-md);
        max-width: calc(100vw - 2rem);
    }
    
    .modal-actions {
        flex-direction: column;
        gap: var(--space-md);
    }
    
    .start-steps {
        gap: var(--space-sm);
    }
    
    .start-step {
        padding: var(--space-sm) var(--space-md);
    }
    
    .quick-start-guide {
        padding: var(--space-lg);
        margin-bottom: var(--space-lg);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-md);
    }
    
    .hero-title {
        font-size: var(--text-3xl);
    }
    
    .section-title {
        font-size: var(--text-3xl);
    }
    
    .install-step.active {
        flex-direction: column;
        text-align: center;
    }
    
    .example-tabs {
        grid-template-columns: 1fr;
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-xs); }
.mb-2 { margin-bottom: var(--space-sm); }
.mb-3 { margin-bottom: var(--space-md); }
.mb-4 { margin-bottom: var(--space-lg); }
.mb-5 { margin-bottom: var(--space-xl); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-xs); }
.mt-2 { margin-top: var(--space-sm); }
.mt-3 { margin-top: var(--space-md); }
.mt-4 { margin-top: var(--space-lg); }
.mt-5 { margin-top: var(--space-xl); }

.hidden { display: none; }
.visible { display: block; }

/* Loading Animation */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.loading {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Scroll Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* Installation Section - Enhanced Multi-Platform */
.installation-section {
    padding: var(--section-padding) 0;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    position: relative;
}

.installation-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 20%, rgba(102, 126, 234, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(118, 75, 162, 0.05) 0%, transparent 50%);
    z-index: 1;
}

.installation-section .container {
    position: relative;
    z-index: 2;
}

/* Platform Tabs */
.deployment-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    padding: 0.5rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    flex-wrap: wrap;
}

.tab-button {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border: none;
    background: transparent;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    overflow: hidden;
}

.tab-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.5s ease;
}

.tab-button:hover::before {
    left: 100%;
}

.tab-button.active {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 16px rgba(102, 126, 234, 0.3);
    transform: translateY(-2px);
}

.tab-button.active::before {
    display: none;
}

.tab-icon {
    font-size: 1.2rem;
    filter: drop-shadow(0 0 4px rgba(0, 0, 0, 0.2));
}

/* Tab Content */
.tab-content {
    display: none;
    animation: fadeIn 0.5s ease-in-out;
}

.tab-content.active {
    display: block;
}

/* Platform Header */
.platform-header {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(248, 250, 252, 0.9) 100%);
    border-radius: 20px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.platform-header h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.requirements {
    margin-top: 1.5rem;
}

.requirements h4 {
    font-size: 1.1rem;
    margin-bottom: 0.8rem;
    color: var(--text-primary);
    font-weight: 600;
}

.requirements ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.requirements li {
    padding: 0.5rem 0;
    position: relative;
    padding-left: 1.5rem;
    color: var(--text-secondary);
}

.requirements li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-success);
    font-weight: bold;
    font-size: 1.1rem;
}

/* Installation Steps */
.installation-steps {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.step-item {
    display: flex;
    gap: 1.5rem;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(248, 250, 252, 0.95) 100%);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.step-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 0 4px 4px 0;
}

.step-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    background: var(--gradient-primary);
    color: white;
    border-radius: 50%;
    font-weight: bold;
    font-size: 1.2rem;
    flex-shrink: 0;
    box-shadow: 0 4px 16px rgba(102, 126, 234, 0.3);
    position: relative;
}

.step-number::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: inherit;
    z-index: -1;
    animation: pulse 2s infinite;
}

.step-content {
    flex: 1;
}

.step-content h4 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-weight: 600;
}

.step-content p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.info-box {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.05) 0%, rgba(99, 102, 241, 0.05) 100%);
    border: 1px solid rgba(59, 130, 246, 0.1);
    border-radius: 12px;
    padding: 1rem;
    margin: 1rem 0;
    position: relative;
}

.info-box::before {
    content: '💡';
    position: absolute;
    top: 1rem;
    left: 1rem;
    font-size: 1.2rem;
}

.info-box p {
    margin: 0;
    padding-left: 2rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

.link:hover::after {
    width: 100%;
}

/* Quick Start Tip */
.quick-start-tip {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.1) 0%, rgba(59, 130, 246, 0.1) 100%);
    border: 1px solid rgba(34, 197, 94, 0.2);
    border-radius: 16px;
    padding: 2rem;
    margin-top: 3rem;
    position: relative;
    overflow: hidden;
}

.quick-start-tip::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-success) 0%, var(--primary) 100%);
}

/* System Requirements */
.requirements-section {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(248, 250, 252, 0.9) 100%);
    border-radius: 20px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.requirements-section h3 {
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    font-weight: 600;
}

.requirements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.requirement-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--color-gray-200);
}

.req-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.req-content h4 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.req-content p {
    color: var(--color-gray-600);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* Platform Options */
.platform-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.option-card {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    border: 2px solid var(--color-gray-200);
    transition: all 0.3s ease;
}

.option-card:hover {
    border-color: var(--color-primary);
    box-shadow: 0 8px 24px rgba(217, 119, 87, 0.15);
}

.option-card h4 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.option-card p {
    color: var(--color-gray-600);
    font-size: 0.95rem;
}

/* Warning and Info Boxes */
.warning-box, .info-box {
    padding: 1rem;
    border-radius: 8px;
    margin: 1rem 0;
    border-left: 4px solid;
}

.warning-box {
    background: rgba(251, 191, 36, 0.1);
    border-left-color: #f59e0b;
    color: #92400e;
}

.info-box {
    background: rgba(59, 130, 246, 0.1);
    border-left-color: #3b82f6;
    color: #1d4ed8;
}

/* Quick Start Section */
.quick-start-section {
    margin-top: 3rem;
    padding: 2rem;
    background: linear-gradient(135deg, rgba(217, 119, 87, 0.05) 0%, rgba(135, 134, 127, 0.05) 100%);
    border-radius: 20px;
}

.start-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.start-card {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--color-gray-200);
    transition: all 0.3s ease;
}

.start-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.start-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.start-card h4 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-weight: 600;
}

.start-card p {
    color: var(--color-gray-600);
    font-size: 0.95rem;
}

.code-block.mini {
    margin: 1rem 0;
    padding: 0.5rem 1rem;
    background: var(--color-gray-100);
    border-radius: 6px;
    font-family: var(--font-family-mono);
    font-size: 0.85rem;
}

.code-block.mini code {
    color: var(--color-gray-700);
    background: none;
    padding: 0;
    display: inline;
}

/* Alternative Methods */
.alternative-methods {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid var(--color-gray-200);
}

.alternative-methods h4 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-weight: 600;
}

.method-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.method-item {
    padding: 0.75rem;
    background: var(--bg-secondary);
    border-radius: 8px;
    font-size: 0.95rem;
    border-left: 3px solid var(--color-primary);
}

.method-item code {
    background: var(--color-gray-200);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-family: var(--font-family-mono);
    font-size: 0.85rem;
}

/* API Key Section */
.api-key-section {
    margin-top: 2rem;
}

.api-key-card {
    background: linear-gradient(135deg, rgba(217, 119, 87, 0.05) 0%, rgba(135, 134, 127, 0.05) 100%);
    border: 1px solid var(--color-primary);
    border-radius: 16px;
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

.api-key-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-secondary) 100%);
}

.api-key-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.api-key-icon {
    width: 48px;
    height: 48px;
    background: var(--color-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.api-key-title {
    flex: 1;
}

.api-key-title h4 {
    color: var(--text-primary);
    margin: 0 0 0.25rem 0;
    font-weight: 600;
    font-size: 1.25rem;
}

.api-key-title p {
    color: var(--color-gray-700);
    margin: 0;
    font-size: 0.9rem;
}

.api-key-badge {
    background: var(--color-primary);
    color: white;
    border-radius: 20px;
    padding: 0.3rem 0.8rem;
    font-size: 0.8rem;
    font-weight: 600;
    transform: rotate(-2deg);
    box-shadow: 0 2px 8px rgba(217, 119, 87, 0.3);
}

.api-key-description {
    color: var(--color-gray-700);
    margin-bottom: 1.5rem;
    line-height: 1.6;
    font-size: 0.95rem;
}

.benefit-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: white;
    border-radius: 10px;
    border: 1px solid var(--color-gray-100);
    transition: all 0.3s ease;
}

.benefit-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.benefit-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.benefit-text {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.benefit-text strong {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.9rem;
}

.benefit-text span {
    color: var(--color-gray-700);
    font-size: 0.8rem;
}

.api-key-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.api-key-actions .btn {
    flex: 1;
    min-width: 160px;
    justify-content: center;
    text-decoration: none;
}

@media (max-width: 768px) {
    .api-key-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .benefit-grid {
        grid-template-columns: 1fr;
    }
    
    .api-key-actions {
        flex-direction: column;
    }
    
    .api-key-actions .btn {
        min-width: auto;
    }
}

.tip-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.tip-content h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 600;
}

.tip-content p {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Responsive Design for Installation Section */
@media (max-width: 768px) {
    .deployment-tabs {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .tab-button {
        padding: 0.8rem 1.5rem;
        justify-content: center;
    }
    
    .step-item {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .step-number {
        align-self: center;
    }
    
    .platform-header,
    .step-item {
        padding: 1.5rem;
    }
    
    .quick-start-tip {
        flex-direction: column;
        text-align: center;
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.7;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

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