/* ==========================================================================
   CSS Stylesheet for Chongshangyunxiao (冲上云霄) Landing Page & Blog
   Theme: White background, purple text/accents, earth-technology feeling
   ========================================================================== */

/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

:root {
    /* Color Palette */
    --bg-primary: #ffffff;
    --bg-secondary: #fbfbfe;
    --bg-tertiary: #f3effc;
    --text-primary: #180a30;
    --text-secondary: #5c4e75;
    --text-muted: #8d7ea6;
    
    --primary: #7c3aed; /* Electric Purple */
    --primary-hover: #6d28d9;
    --primary-light: #f5f3ff;
    --primary-glow: rgba(124, 58, 237, 0.2);
    
    --accent: #d946ef; /* Bright Magenta-violet */
    --accent-glow: rgba(217, 70, 239, 0.15);
    
    --border-color: #e9e4f5;
    --border-color-hover: #d2c8ed;
    --success: #10b981;
    --warning: #f59e0b;
    
    /* Font Families */
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    
    /* System Values */
    --container-max: 1200px;
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --shadow-sm: 0 4px 6px -1px rgba(124, 58, 237, 0.05), 0 2px 4px -1px rgba(124, 58, 237, 0.03);
    --shadow-md: 0 10px 15px -3px rgba(124, 58, 237, 0.08), 0 4px 6px -2px rgba(124, 58, 237, 0.04);
    --shadow-lg: 0 20px 25px -5px rgba(124, 58, 237, 0.12), 0 10px 10px -5px rgba(124, 58, 237, 0.04);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* Tech Grid Background */
body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1000px;
    background-image: 
        radial-gradient(var(--bg-primary) 30%, transparent 80%),
        radial-gradient(var(--primary-glow) 1px, transparent 1px);
    background-size: 100% 100%, 30px 30px;
    z-index: -2;
    pointer-events: none;
}

/* Container */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.25;
    color: var(--text-primary);
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    border: none;
    gap: 8px;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #ffffff;
    box-shadow: 0 8px 20px -6px var(--primary);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 24px -4px var(--primary);
}

.btn-secondary {
    background-color: var(--primary-light);
    color: var(--primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--border-color-hover);
    transform: translateY(-2px);
}

.btn-icon {
    font-size: 1.1rem;
}

/* Badge */
.badge {
    display: inline-block;
    padding: 6px 14px;
    background-color: var(--primary-light);
    color: var(--primary);
    border-radius: 50px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.8rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border: 1px solid var(--border-color);
    margin-bottom: 16px;
}

/* Header & Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    z-index: 100;
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.header.scrolled {
    padding: 10px 0;
    box-shadow: var(--shadow-sm);
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.4rem;
    color: var(--primary);
}

.logo-dot {
    width: 10px;
    height: 10px;
    background-color: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent);
    display: inline-block;
    position: relative;
    animation: pulse 2s infinite;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-link {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

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

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

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-primary);
    cursor: pointer;
}

/* Mobile Nav Styles */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: var(--bg-primary);
        flex-direction: column;
        align-items: flex-start;
        padding: 40px;
        gap: 24px;
        transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        border-top: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
        z-index: 99;
    }
    .nav-menu.open {
        left: 0;
    }
}

/* Hero Section */
.hero {
    padding: 160px 0 100px;
    position: relative;
    overflow: hidden;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 40px;
    align-items: center;
}

.hero-content {
    max-width: 620px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 24px;
    background: linear-gradient(135deg, var(--text-primary) 30%, var(--primary) 70%, var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-desc {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 36px;
}

.hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.hero-trust {
    display: flex;
    align-items: center;
    gap: 24px;
    border-top: 1px solid var(--border-color);
    padding-top: 24px;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.trust-item i {
    color: var(--primary);
    font-size: 1rem;
}

/* Earth Tech Graphic */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.tech-globe-container {
    width: 420px;
    height: 420px;
    position: relative;
}

.tech-globe {
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(124, 58, 237, 0.05) 0%, rgba(217, 70, 239, 0.02) 70%);
    border-radius: 50%;
    position: relative;
    border: 1px dashed var(--border-color);
    animation: rotate 60s linear infinite;
}

.globe-core {
    position: absolute;
    top: 15%;
    left: 15%;
    width: 70%;
    height: 70%;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, #ffffff 0%, var(--primary-light) 50%, var(--border-color) 100%);
    box-shadow: 
        inset 0 0 30px rgba(124, 58, 237, 0.15),
        0 0 40px rgba(124, 58, 237, 0.1);
    display: flex;
    justify-content: center;
    align-items: center;
    animation: pulse 8s ease-in-out infinite;
}

.globe-core::after {
    content: '';
    position: absolute;
    width: 110%;
    height: 110%;
    border-radius: 50%;
    border: 2px solid rgba(124, 58, 237, 0.1);
    animation: pulse 4s ease-in-out infinite alternate;
}

.orbit {
    position: absolute;
    top: 50%;
    left: 50%;
    border-radius: 50%;
    border: 1px solid rgba(124, 58, 237, 0.15);
    transform: translate(-50%, -50%);
}

.orbit-1 { width: 120%; height: 60%; transform: translate(-50%, -50%) rotate(30deg); }
.orbit-2 { width: 60%; height: 120%; transform: translate(-50%, -50%) rotate(-30deg); }
.orbit-3 { width: 110%; height: 110%; transform: translate(-50%, -50%) rotate(90deg); border-style: dotted; }

.node {
    position: absolute;
    width: 8px;
    height: 8px;
    background-color: var(--primary);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--primary);
}

.node-1 { top: 12%; left: 30%; }
.node-2 { top: 75%; left: 15%; background-color: var(--accent); box-shadow: 0 0 10px var(--accent); }
.node-3 { top: 40%; right: 8%; }
.node-4 { bottom: 20%; right: 25%; }

/* Stats Section */
.stats {
    padding: 50px 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    background-color: var(--bg-secondary);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
}

.stat-card {
    padding: 20px;
}

.stat-number {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 8px;
    font-family: var(--font-heading);
}

.stat-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

/* Features Section */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 16px;
}

.section-desc {
    color: var(--text-secondary);
    font-size: 1.05rem;
}

.features {
    padding: 100px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--border-color-hover);
    box-shadow: var(--shadow-md);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, var(--primary), var(--accent));
    opacity: 0;
    transition: var(--transition);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon-wrapper {
    width: 60px;
    height: 60px;
    background-color: var(--primary-light);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: var(--primary);
    font-size: 1.5rem;
    transition: var(--transition);
}

.feature-card:hover .feature-icon-wrapper {
    background-color: var(--primary);
    color: #ffffff;
    box-shadow: 0 8px 16px -4px var(--primary);
}

.feature-title {
    font-size: 1.3rem;
    margin-bottom: 16px;
}

.feature-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Routing Visualization Section */
.routing {
    padding: 100px 0;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    position: relative;
}

.routing-grid {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 60px;
    align-items: center;
}

.routing-content {
    max-width: 500px;
}

.routing-list {
    list-style: none;
    margin-top: 30px;
}

.routing-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 24px;
}

.routing-marker {
    width: 24px;
    height: 24px;
    background-color: var(--primary-light);
    border: 1px solid var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 4px;
}

.routing-item-title {
    font-weight: 700;
    font-size: 1.05rem;
    margin-bottom: 4px;
}

.routing-item-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.routing-map {
    position: relative;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    background-color: var(--bg-primary);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.svg-map {
    width: 100%;
    max-width: 500px;
    height: auto;
    opacity: 0.85;
}

.routing-ping-overlay {
    margin-top: 20px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    width: 100%;
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
    gap: 12px;
}

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

.ping-region {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.ping-value {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--success);
}

/* Pricing Section */
.pricing {
    padding: 100px 0;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    align-items: stretch;
}

.pricing-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px 30px;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.pricing-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-color-hover);
    box-shadow: var(--shadow-lg);
}

.pricing-card.popular {
    border: 2px solid var(--primary);
    box-shadow: var(--shadow-md);
}

.pricing-card.popular:hover {
    box-shadow: var(--shadow-lg);
}

.pricing-badge {
    position: absolute;
    top: 20px;
    right: -35px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #ffffff;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 35px;
    transform: rotate(45deg);
    text-align: center;
    letter-spacing: 0.05em;
}

.plan-icon {
    font-size: 2.2rem;
    margin-bottom: 16px;
}

.plan-name {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.plan-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
    min-height: 40px;
}

.plan-price-wrapper {
    display: flex;
    align-items: baseline;
    margin-bottom: 24px;
}

.plan-price-currency {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.plan-price-value {
    font-size: 3rem;
    font-weight: 800;
    font-family: var(--font-heading);
    color: var(--primary);
    line-height: 1;
}

.plan-price-period {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-left: 4px;
}

.plan-features-list {
    list-style: none;
    margin-bottom: 32px;
    flex-grow: 1;
}

.plan-feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 14px;
}

.plan-feature-item i {
    color: var(--primary);
    font-size: 0.95rem;
}

.plan-feature-item.disabled {
    color: var(--text-muted);
    text-decoration: line-through;
}

.plan-feature-item.disabled i {
    color: var(--text-muted);
}

.pricing-card .btn {
    width: 100%;
}

/* Downloads Section */
.downloads {
    padding: 100px 0;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.downloads-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}

.download-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 30px 20px;
    text-align: center;
    transition: var(--transition);
}

.download-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-color-hover);
    box-shadow: var(--shadow-sm);
}

.download-icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 16px;
}

.download-title {
    font-size: 1.1rem;
    margin-bottom: 8px;
    font-weight: 600;
}

.download-subtitle {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.download-card .btn {
    padding: 8px 16px;
    font-size: 0.85rem;
    width: 100%;
}

/* Blog / Articles Section */
.blog {
    padding: 100px 0;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.blog-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
}

.blog-card:hover {
    transform: translateY(-5px);
    border-color: var(--border-color-hover);
    box-shadow: var(--shadow-md);
}

.blog-image {
    height: 200px;
    background: linear-gradient(135deg, var(--bg-tertiary), var(--primary-light));
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--primary);
}

.blog-image-overlay {
    position: absolute;
    top: 15px;
    left: 15px;
    background-color: rgba(255, 255, 255, 0.9);
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary);
    border: 1px solid var(--border-color);
}

.blog-image-icon {
    font-size: 3.5rem;
    opacity: 0.3;
}

.blog-content {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.blog-meta {
    display: flex;
    gap: 16px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.blog-title {
    font-size: 1.15rem;
    line-height: 1.4;
    margin-bottom: 12px;
    min-height: 48px;
}

.blog-title a:hover {
    color: var(--primary);
}

.blog-excerpt {
    font-size: 0.88rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.5;
}

.blog-link {
    font-weight: 600;
    font-size: 0.88rem;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: auto;
}

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

.blog-link:hover i {
    transform: translateX(4px);
}

.blog-link i {
    transition: var(--transition);
}

/* User Reviews Section */
.reviews {
    padding: 100px 0;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.review-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 36px;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    position: relative;
}

.review-stars {
    color: var(--warning);
    font-size: 1rem;
    margin-bottom: 16px;
}

.review-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
    font-style: italic;
    line-height: 1.6;
    flex-grow: 1;
}

.review-user {
    display: flex;
    align-items: center;
    gap: 12px;
}

.review-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    border: 1px solid var(--border-color);
}

.review-user-name {
    font-weight: 700;
    font-size: 0.95rem;
}

.review-user-title {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* FAQ Section */
.faq {
    padding: 100px 0 140px;
}

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

.faq-item {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    background-color: var(--bg-primary);
    overflow: hidden;
    transition: var(--transition);
}

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

.faq-item.active {
    border-color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.faq-header {
    padding: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    background: none;
    border: none;
    width: 100%;
    text-align: left;
}

.faq-question {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
}

.faq-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background-color: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
    background-color: var(--primary);
    color: #ffffff;
}

.faq-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-content {
    padding: 0 24px 24px 24px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Single Blog Page Styles */
.blog-header-section {
    padding: 160px 0 60px;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    text-align: center;
}

.blog-post-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 24px;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.blog-post-meta {
    display: flex;
    justify-content: center;
    gap: 24px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.blog-post-container {
    padding: 60px 0 100px;
}

.blog-post-layout {
    display: grid;
    grid-template-columns: 8fr 4fr;
    gap: 50px;
}

.blog-post-content {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-primary);
}

.blog-post-content p {
    margin-bottom: 24px;
}

.blog-post-content h2 {
    font-size: 1.8rem;
    margin: 40px 0 20px;
    color: var(--primary);
    border-left: 4px solid var(--primary);
    padding-left: 12px;
}

.blog-post-content h3 {
    font-size: 1.4rem;
    margin: 30px 0 16px;
    color: var(--text-primary);
}

.blog-post-content ul, .blog-post-content ol {
    margin-bottom: 24px;
    padding-left: 24px;
}

.blog-post-content li {
    margin-bottom: 8px;
}

.blog-post-content blockquote {
    border-left: 4px solid var(--primary);
    background-color: var(--primary-light);
    padding: 16px 24px;
    margin: 30px 0;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-style: italic;
    color: var(--text-secondary);
}

.blog-post-content a {
    color: var(--primary);
    font-weight: 600;
    text-decoration: underline;
}

.blog-post-content a:hover {
    color: var(--accent);
}

/* Blog Sidebar */
.blog-sidebar {
    position: sticky;
    top: 100px;
    align-self: start;
}

.sidebar-widget {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 30px;
    margin-bottom: 30px;
}

.widget-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--primary);
    padding-bottom: 8px;
}

.sidebar-links {
    list-style: none;
}

.sidebar-link-item {
    margin-bottom: 12px;
    line-height: 1.4;
}

.sidebar-link-item a {
    font-size: 0.95rem;
    color: var(--text-secondary);
    display: inline-block;
}

.sidebar-link-item a:hover {
    color: var(--primary);
    transform: translateX(4px);
}

.cta-widget {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #ffffff;
    border: none;
    text-align: center;
}

.cta-widget h3 {
    color: #ffffff;
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.cta-widget p {
    font-size: 0.9rem;
    opacity: 0.9;
    margin-bottom: 24px;
}

.cta-widget .btn {
    background-color: #ffffff;
    color: var(--primary);
    width: 100%;
}

.cta-widget .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

/* Footer Section */
.footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 80px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 60px;
}

.footer-logo {
    margin-bottom: 20px;
}

.footer-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 24px;
}

.footer-socials {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

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

.footer-title {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 24px;
}

.footer-links {
    list-style: none;
}

.footer-link-item {
    margin-bottom: 12px;
}

.footer-link-item a {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

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

.footer-newsletter p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.newsletter-form {
    display: flex;
    gap: 8px;
}

.newsletter-input {
    flex-grow: 1;
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    outline: none;
    font-family: var(--font-body);
    font-size: 0.9rem;
}

.newsletter-input:focus {
    border-color: var(--primary);
}

.newsletter-form .btn {
    padding: 10px 16px;
    border-radius: var(--radius-sm);
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.copyright {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-legal {
    display: flex;
    gap: 24px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Animations */
@keyframes pulse {
    0% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(217, 70, 239, 0.4);
    }
    70% {
        transform: scale(1.05);
        box-shadow: 0 0 0 10px rgba(217, 70, 239, 0);
    }
    100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(217, 70, 239, 0);
    }
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Responsive Styles */
@media (max-width: 1200px) {
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
}

@media (max-width: 992px) {
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 50px;
    }
    .hero-content {
        max-width: 100%;
    }
    .hero-title {
        font-size: 2.8rem;
    }
    .hero-cta {
        justify-content: center;
    }
    .hero-trust {
        justify-content: center;
    }
    .hero-visual {
        order: -1;
    }
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .features-grid {
        grid-template-columns: 1fr;
        max-width: 600px;
        margin: 0 auto;
    }
    .routing-grid {
        grid-template-columns: 1fr;
    }
    .routing-content {
        max-width: 100%;
    }
    .downloads-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .blog-post-layout {
        grid-template-columns: 1fr;
    }
    .blog-sidebar {
        position: static;
        margin-top: 50px;
    }
    .reviews-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: var(--bg-primary);
        flex-direction: column;
        align-items: flex-start;
        padding: 40px;
        gap: 24px;
        transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        border-top: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
        z-index: 99;
    }
    .nav-menu.open {
        left: 0;
    }
    .mobile-toggle {
        display: block;
    }
    .nav-actions {
        display: none;
    }
    .hero-title {
        font-size: 2.2rem;
    }
    .downloads-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .blog-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 576px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    .downloads-grid {
        grid-template-columns: 1fr;
    }
    .tech-globe-container {
        width: 300px;
        height: 300px;
    }
}