/* ===== CSS Reset & Base ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    /* Colors */
    --color-bg: #0a0a0f;
    --color-bg-secondary: #12121a;
    --color-bg-tertiary: #1a1a24;
    --color-border: #2a2a3a;
    --color-border-light: #3a3a4a;
    --color-primary: #00d9ff;
    --color-primary-dark: #00b8e6;
    --color-primary-light: #4de5ff;
    --color-accent: #6366f1;
    --color-accent-light: #818cf8;
    --color-gradient-start: #00d9ff;
    --color-gradient-end: #6366f1;
    --color-text: #e4e4e7;
    --color-text-secondary: #a1a1aa;
    --color-text-muted: #71717a;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', Monaco, 'Cascadia Code', monospace;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;

    /* Layout */
    --container-max-width: 1200px;
    --border-radius-sm: 6px;
    --border-radius-md: 10px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;
    --border-radius-full: 9999px;

    /* Effects */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 40px rgba(0, 217, 255, 0.15);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    width: 100%;
    min-height: 100vh;
    overflow-x: hidden;
}

/* ===== Container ===== */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);


    width: 100%;
    box-sizing: border-box;
}

/* ===== Navigation ===== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 700;
    font-size: var(--font-size-xl);
    color: var(--color-text);
    text-decoration: none;
    transition: all var(--transition-base);
}

.logo img {
    transition: all var(--transition-base);
    animation: logoFloat 3s ease-in-out infinite;
}

.logo:hover img {
    transform: scale(1.1);
    filter: drop-shadow(0 0 12px rgba(0, 217, 255, 0.6));
}

.logo svg {
    flex-shrink: 0;
}

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

.nav-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: color var(--transition-fast);
}

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

.nav-link-github {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    color: var(--color-text) !important;
}

.github-star-count {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    background: rgba(0, 217, 255, 0.1);
    border: 1px solid rgba(0, 217, 255, 0.3);
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    color: var(--color-primary);
    transition: all var(--transition-fast);
}

.nav-link-github:hover .github-star-count {
    background: rgba(0, 217, 255, 0.15);
    border-color: rgba(0, 217, 255, 0.5);
}

.star-icon {
    flex-shrink: 0;
    animation: starPulse 2s ease-in-out infinite;
}

@keyframes starPulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

.star-number {
    font-variant-numeric: tabular-nums;
}

/* Language Switcher */
.lang-dropdown {
    position: relative;
}

.lang-dropdown-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: rgba(26, 26, 36, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    color: var(--color-text);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
}

.lang-dropdown-btn:hover {
    background: rgba(36, 36, 46, 0.9);
    border-color: rgba(255, 255, 255, 0.12);
}

.lang-dropdown-btn.active {
    background: rgba(36, 36, 46, 0.95);
    border-color: var(--color-primary);
}

.dropdown-arrow {
    flex-shrink: 0;
    color: var(--color-text-secondary);
    transition: transform var(--transition-base);
}

.lang-dropdown-btn.active .dropdown-arrow {
    transform: rotate(180deg);
}

.lang-dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 140px;
    background: rgba(20, 20, 28, 0.98);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 6px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all var(--transition-base);
    z-index: 1001;
}

.lang-dropdown-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-option {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 8px 10px;
    background: transparent;
    border: none;
    border-radius: 6px;
    color: var(--color-text);
    font-size: 13px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.lang-option:hover {
    background: rgba(0, 217, 255, 0.08);
}

.lang-option.selected {
    background: rgba(0, 217, 255, 0.12);
    color: var(--color-primary);
}

.lang-name {
    text-align: left;
}

.check-icon {
    flex-shrink: 0;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.lang-option.selected .check-icon {
    opacity: 1;
}

/* ===== Hero Section ===== */
.hero {
    padding: calc(64px + var(--spacing-4xl)) 0 var(--spacing-xl);
    text-align: center;
}

.hero-content h1 {
    font-size: clamp(var(--font-size-4xl), 8vw, var(--font-size-6xl));
    font-weight: 800;
    line-height: 1.4;
    margin-bottom: var(--spacing-xl);
    letter-spacing: -0.02em;
}

.hero-subtitle-text {
    font-size: 0.65em;
    font-weight: 600;
}

.hero-logo {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 0 var(--spacing-xl) 0;
    position: relative;
}

.hero-logo::before {
    content: '';
    position: absolute;
    width: 220px;
    height: 220px;
    background: radial-gradient(circle, rgba(0, 217, 255, 0.2) 0%, transparent 70%);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
    z-index: 0;
}

.hero-logo img {
    width: 180px;
    height: 180px;
    position: relative;
    z-index: 1;
    animation: heroLogoFloat 4s ease-in-out infinite;
    filter: drop-shadow(0 0 30px rgba(0, 217, 255, 0.4));
    transition: all var(--transition-base);
}

.hero-logo:hover img {
    transform: scale(1.15);
    filter: drop-shadow(0 0 50px rgba(0, 217, 255, 0.8));
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-gradient-start) 0%, var(--color-gradient-end) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(var(--font-size-lg), 2vw, var(--font-size-xl));
    color: var(--color-text-secondary);
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
    line-height: 1.6;
}

.hero-code-desc {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, var(--color-gradient-start) 0%, var(--color-gradient-end) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-3xl);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: 600;
    border-radius: var(--border-radius-full);
    text-decoration: none;
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
    outline: none;
    -webkit-tap-highlight-color: transparent;
    -webkit-user-select: none;
    user-select: none;
    -webkit-touch-callout: none;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: inherit;
    z-index: -1;
}

.btn:active {
    transform: scale(0.98);
    border-radius: var(--border-radius-full);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-gradient-start) 0%, var(--color-gradient-end) 100%);
    color: var(--color-bg);
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 60px rgba(0, 217, 255, 0.25);
}

.btn-primary:active {
    box-shadow: 0 0 40px rgba(0, 217, 255, 0.3);
}

.btn-secondary {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2) 0%, rgba(129, 140, 248, 0.2) 100%);
    color: var(--color-text);
    border: 2px solid var(--color-accent);
    box-sizing: border-box;
}

.btn-secondary:hover {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.3) 0%, rgba(129, 140, 248, 0.3) 100%);
    border-color: var(--color-accent-light);
    transform: translateY(-2px);
}

.btn-large {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--font-size-lg);
}

/* ===== Code Block ===== */
.hero-code {
    max-width: 700px;
    margin: 0 auto;
    border-radius: var(--border-radius-lg);
    border: 1px solid transparent;
    background: var(--color-bg-secondary);
    background-clip: padding-box;
    position: relative;
    overflow: hidden;
    text-align: left;
    box-shadow: 0 0 0 1px rgba(0, 217, 255, 0.1),
                0 8px 32px rgba(0, 0, 0, 0.4),
                0 0 80px rgba(0, 217, 255, 0.08);
    transition: all var(--transition-base);
}

.hero-code::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--border-radius-lg);
    padding: 1px;
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.3), rgba(99, 102, 241, 0.3));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    opacity: 0.5;
    transition: opacity var(--transition-base);
}

.hero-code:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 0 1px rgba(0, 217, 255, 0.2),
                0 12px 40px rgba(0, 0, 0, 0.5),
                0 0 100px rgba(0, 217, 255, 0.12);
}

.hero-code:hover::before {
    opacity: 0.8;
}

.code-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background: linear-gradient(180deg, var(--color-bg-tertiary) 0%, var(--color-bg-secondary) 100%);
    border-bottom: 1px solid var(--color-border);
    position: relative;
    z-index: 1;
}

.code-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-border-light);
    box-shadow: 0 0 8px currentColor;
    transition: transform var(--transition-fast);
}

.code-dot:hover {
    transform: scale(1.2);
}

.code-dot:nth-child(1) {
    background: #ff5f57;
    box-shadow: 0 0 8px rgba(255, 95, 87, 0.5);
}
.code-dot:nth-child(2) {
    background: #ffbd2e;
    box-shadow: 0 0 8px rgba(255, 189, 46, 0.5);
}
.code-dot:nth-child(3) {
    background: #28c840;
    box-shadow: 0 0 8px rgba(40, 200, 64, 0.5);
}

.code-title {
    margin-left: auto;
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 500;
}

.code-copy-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
    margin-left: var(--spacing-md);
    background: rgba(0, 217, 255, 0.08);
    border: 1px solid rgba(0, 217, 255, 0.2);
    border-radius: 8px;
    color: var(--color-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.code-copy-btn:hover {
    background: rgba(0, 217, 255, 0.15);
    border-color: rgba(0, 217, 255, 0.4);
    transform: scale(1.05);
    box-shadow: 0 0 16px rgba(0, 217, 255, 0.3);
}

.code-copy-btn:active {
    transform: scale(0.95);
}

.code-copy-btn.copied {
    background: rgba(16, 185, 129, 0.15);
    border-color: rgba(16, 185, 129, 0.4);
    color: #10b981;
    box-shadow: 0 0 16px rgba(16, 185, 129, 0.3);
}

.code-copy-btn svg {
    width: 16px;
    height: 16px;
}

.code-content {
    padding: var(--spacing-xl) var(--spacing-lg);
    font-family: var(--font-mono);
    font-size: var(--font-size-sm);
    line-height: 2;
    overflow-x: auto;
    max-width: 100%;
    margin: 0;
    position: relative;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.2) 0%, transparent 100%);
}

.code-content code {
    display: block;
    color: var(--color-text);
    white-space: pre;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.prompt {
    color: var(--color-primary);
    margin-right: var(--spacing-sm);
    font-weight: 600;
    text-shadow: 0 0 10px rgba(0, 217, 255, 0.5);
}

.keyword {
    color: #f472b6;
    font-weight: 600;
}

.command {
    color: #60a5fa;
    font-weight: 500;
}

.string {
    color: #a78bfa;
}

.argument {
    color: #34d399;
}

.comment {
    color: var(--color-text-muted);
}

/* ===== Trusted By Section ===== */
.trusted {
    padding: var(--spacing-4xl) 0;
    text-align: center;
}

.trusted .section-header h2 {
    margin-bottom: var(--spacing-md);
}

.trusted-label {
    color: var(--color-text-muted);
    font-size: var(--font-size-lg);
    font-weight: 400;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.trusted-coming-soon {
    text-align: center;
    color: var(--color-primary);
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-top: var(--spacing-2xl);
}

.trusted-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-3xl);
    flex-wrap: wrap;
    max-width: 1000px;
    margin: 0 auto;
}

.trusted-logo {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-text-secondary);
    padding: var(--spacing-lg) var(--spacing-xl);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    transition: all var(--transition-base);
    cursor: default;
    min-width: 140px;
    text-align: center;
}

.trusted-logo:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

/* ===== Trusted Section ===== */
.trusted {
    padding: var(--spacing-3xl) 0;
    border-bottom: 1px solid var(--color-border);
}

.trusted-label {
    text-align: center;
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-lg);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.trusted-logos {
    display: flex;
    justify-content: center;
    gap: var(--spacing-3xl);
    flex-wrap: wrap;
}

.logo-placeholder {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text-secondary);
}

/* ===== Section Headers ===== */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-header-horizontal {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
}

.section-header-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.1) 0%, rgba(99, 102, 241, 0.1) 100%);
    border-radius: var(--border-radius-md);
    color: var(--color-primary);
    flex-shrink: 0;
}

.section-header-horizontal h2 {
    font-size: clamp(var(--font-size-2xl), 4vw, var(--font-size-4xl));
    font-weight: 700;
    margin: 0;
    letter-spacing: -0.02em;
}

.section-header h2 {
    font-size: clamp(var(--font-size-3xl), 5vw, var(--font-size-5xl));
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.section-header p {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
}

/* ===== Features Section ===== */
.features {
    padding: var(--spacing-lg) 0 var(--spacing-lg);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
}

.feature-card {
    padding: var(--spacing-xl);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    transition: all var(--transition-base);
    text-decoration: none;
    display: block;
    color: inherit;
}

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

.feature-card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.feature-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.1) 0%, rgba(99, 102, 241, 0.1) 100%);
    border-radius: var(--border-radius-md);
    color: var(--color-primary);
    flex-shrink: 0;
}

.feature-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin: 0;
    color: var(--color-text);
    transition: color var(--transition-fast);
}

.feature-card:hover h3 {
    color: var(--color-primary);
}

.feature-card p {
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin: 0;
}

/* ===== Capabilities Section ===== */
.capabilities {
    padding: var(--spacing-4xl) 0;
    background: var(--color-bg-secondary);
}

.capabilities-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
}

.capability {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-full);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

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

/* ===== Ecosystem Section ===== */
.ecosystem {
    padding: var(--spacing-xl) 0;
}

.ecosystem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.ecosystem-card {
    padding: var(--spacing-xl);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    text-decoration: none;
    transition: all var(--transition-base);
    display: block;
}

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

.ecosystem-card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.ecosystem-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.1) 0%, rgba(99, 102, 241, 0.1) 100%);
    border-radius: var(--border-radius-md);
    color: var(--color-primary);
    flex-shrink: 0;
}

.ecosystem-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin: 0;
    color: var(--color-text);
}

.ecosystem-card p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.ecosystem-link {
    color: var(--color-primary);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

/* ===== Quick Start Section ===== */
.quickstart {
    padding: var(--spacing-4xl) 0;
    background: var(--color-bg-secondary);
}

.quickstart-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
}

.step {
    position: relative;
}

.step-number {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-gradient-start) 0%, var(--color-gradient-end) 100%);
    border-radius: var(--border-radius-full);
    font-weight: 700;
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
}

.step h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.step-code {
    padding: var(--spacing-md);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-sm);
    overflow-x: auto;
    max-width: 100%;
}

.step-code code {
    font-family: var(--font-mono);
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    white-space: pre-wrap;
    word-break: break-all;
}

.step p {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.quickstart-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== FAQ Section ===== */
.faq {
    padding: var(--spacing-4xl) 0;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    padding: var(--spacing-xl) 0;
    border-bottom: 1px solid var(--color-border);
}

.faq-item:first-child {
    padding-top: 0;
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-item h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.faq-item p {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ===== CTA Section ===== */
.cta {
    padding: var(--spacing-4xl) 0;
    text-align: center;
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.05) 0%, rgba(99, 102, 241, 0.05) 100%);
}

.cta h2 {
    font-size: clamp(var(--font-size-3xl), 5vw, var(--font-size-5xl));
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.cta p {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-2xl);
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== Footer ===== */
.footer {
    padding: var(--spacing-2xl) 0;
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: center;
}

.footer-bottom p {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.footer-social {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.footer-social a {
    color: var(--color-text-secondary);
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    border-radius: var(--border-radius-lg);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
}

.footer-social a:hover {
    color: var(--color-primary);
    background: rgba(0, 217, 255, 0.1);
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.footer-social a img,
.footer-social a svg {
    width: 24px;
    height: 24px;
}

/* WeChat QR Code */
.wechat-qr {
    position: relative;
    color: var(--color-text-secondary);
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    border-radius: var(--border-radius-lg);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    cursor: pointer;
}

.wechat-qr:hover {
    color: var(--color-primary);
    background: rgba(0, 217, 255, 0.1);
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.wechat-qr img,
.wechat-qr svg {
    width: 24px;
    height: 24px;
}

.qr-popup {
    position: absolute;
    bottom: calc(100% + 12px);
    left: 50%;
    transform: translateX(-50%) scale(0.9);
    opacity: 0;
    visibility: hidden;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-xl);
    transition: all var(--transition-base);
    z-index: 100;
    min-width: 180px;
}

.wechat-qr:hover .qr-popup {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) scale(1);
}

.qr-image {
    display: flex;
    justify-content: center;
    padding: var(--spacing-sm);
    background: white;
    border-radius: var(--border-radius-md);
}

.qr-image img {
    width: 150px;
    height: 150px;
    display: block;
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    .section-header-horizontal {
        flex-direction: column;
        text-align: center;
    }

    .section-header-icon {
        width: 48px;
        height: 48px;
    }

    .section-header-icon svg {
        width: 24px;
        height: 24px;
    }

    .feature-card-header,
    .ecosystem-card-header {
        flex-direction: column;
        text-align: center;
    }

    .feature-icon,
    .ecosystem-icon {
        margin-bottom: var(--spacing-md);
    }

    :root {
        --spacing-4xl: 4rem;
        --spacing-3xl: 3rem;
    }

    .nav-content {
        padding: 0 var(--spacing-xs);
    }

    .container {
        padding: 0 var(--spacing-md);
    }

    .nav-links {
        gap: var(--spacing-xs);
    }

    .nav-links a:not(.nav-link-github) {
        display: none;
    }

    .logo {
        font-size: var(--font-size-lg);
    }

    .logo svg {
        width: 24px;
        height: 24px;
    }

    .nav-link-github {
        padding: var(--spacing-xs);
    }

    .nav-link-github svg:first-child {
        width: 18px;
        height: 18px;
    }

    .github-star-count {
        font-size: 11px;
        padding: 2px 6px;
    }

    .star-icon {
        width: 12px;
        height: 12px;
    }

    .lang-dropdown-btn {
        padding: 5px 10px;
        font-size: 12px;
    }

    .dropdown-arrow {
        width: 10px;
        height: 10px;
    }

    .lang-dropdown-menu {
        min-width: 120px;
    }

    .lang-option {
        padding: 7px 8px;
        font-size: 12px;
    }

    .code-content {
        padding: var(--spacing-md);
        font-size: var(--font-size-xs);
    }

    .hero-code {
        max-width: 100%;
    }

    .step-code {
        padding: var(--spacing-sm);
    }

    .hero {
        padding: calc(64px + var(--spacing-2xl)) 0 var(--spacing-2xl);
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .features-grid,
    .ecosystem-grid,
    .quickstart-steps {
        grid-template-columns: 1fr;
    }

    .trusted .section-header h2 {
        font-size: var(--font-size-2xl);
    }

    .trusted-label {
        font-size: var(--font-size-base);
    }

    .trusted-coming-soon {
        font-size: var(--font-size-lg);
        margin-top: var(--spacing-xl);
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    .logo {
        font-size: var(--font-size-base);
    }

    .logo svg {
        width: 20px;
        height: 20px;
    }

    .lang-dropdown-btn {
        padding: 4px 8px;
        font-size: 11px;
    }

    .dropdown-arrow {
        width: 9px;
        height: 9px;
    }

    .lang-option {
        padding: 6px 8px;
        font-size: 11px;
    }

    .nav-link-github svg:first-child {
        width: 16px;
        height: 16px;
    }

    .github-star-count {
        font-size: 10px;
        padding: 1px 5px;
        gap: 3px;
    }

    .star-icon {
        width: 10px;
        height: 10px;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .hero-cta {
        width: 100%;
    }

    .cta-buttons {
        flex-direction: column;
        width: 100%;
    }

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

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

@keyframes logoFloat {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-5px);
    }
}

@keyframes heroLogoFloat {
    0%, 100% {
        transform: translateY(0);
    }
    25% {
        transform: translateY(-15px);
    }
    50% {
        transform: translateY(0);
    }
    75% {
        transform: translateY(-8px);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.3;
    }
    50% {
        transform: scale(1.2);
        opacity: 0.6;
    }
}

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