/* styles.css - Huanyu Cloud Premium Dark Theme Stylesheet */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Outfit:wght@400;500;600;700;800;900&display=swap');

:root {
    --bg-dark: #f8fafc;
    --bg-deep: #f1f5f9;
    --card-bg: rgba(255, 255, 255, 0.75);
    --card-bg-hover: rgba(255, 255, 255, 0.95);
    --card-border: rgba(0, 0, 0, 0.06);
    --card-border-active: rgba(14, 165, 233, 0.4);
    
    --primary-cyan: #0ea5e9;
    --accent-blue: #2563eb;
    --gradient-glow: linear-gradient(135deg, #0ea5e9 0%, #2563eb 100%);
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    
    --danger-red: #ef4444;
    --success-green: #10b981;
    
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    scroll-behavior: smooth;
}

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

/* Typography Helpers */
h1, h2, h3, h4, .outfit-font {
    font-family: 'Outfit', sans-serif;
}

.gradient-text {
    background: var(--gradient-glow);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

/* Layout Elements */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

section {
    padding: 6rem 0;
    position: relative;
    z-index: 1;
}

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

.nav-wrap {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 800;
    text-decoration: none;
    color: var(--text-primary);
}

.logo-icon-svg {
    width: 36px;
    height: 36px;
    filter: drop-shadow(0 2px 8px rgba(14, 165, 233, 0.3));
    animation: floatLogo 4s ease-in-out infinite;
}

@keyframes floatLogo {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-3px); }
}

.nav-menu {
    display: flex;
    gap: 2rem;
    list-style: none;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition-fast);
}

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

.nav-cta {
    background: var(--gradient-glow);
    color: #fff;
    padding: 0.6rem 1.4rem;
    border-radius: 99px;
    font-weight: 700;
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition-normal);
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.2);
}

.nav-cta:hover {
    box-shadow: 0 4px 20px rgba(14, 165, 233, 0.45);
    transform: translateY(-1px);
}

.hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    margin: 5px 0;
    transition: var(--transition-normal);
}

/* Hero Section */
.hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    padding-top: 120px;
    padding-bottom: 4rem;
}

.hero-content {
    text-align: center;
    max-width: 820px;
    margin: 0 auto;
}

.badge {
    background: rgba(0, 242, 254, 0.1);
    border: 1px solid rgba(0, 242, 254, 0.35);
    color: var(--primary-cyan);
    padding: 0.4rem 1.1rem;
    border-radius: 99px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 1px;
    display: inline-block;
    margin-bottom: 1.8rem;
    text-transform: uppercase;
}

.hero h1 {
    font-size: 3.6rem;
    font-weight: 900;
    line-height: 1.25;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-weight: 400;
}

.hero p {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto 3rem;
    line-height: 1.8;
}

.cta-group {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2.4rem;
    border-radius: 12px;
    font-size: 1.05rem;
    font-weight: 700;
    text-decoration: none;
    transition: var(--transition-normal);
    cursor: pointer;
    border: none;
    gap: 8px;
}

.btn-primary {
    background: var(--gradient-glow);
    color: #fff;
    box-shadow: 0 4px 20px rgba(14, 165, 233, 0.25);
}

.btn-primary:hover {
    box-shadow: 0 6px 30px rgba(14, 165, 233, 0.5);
    transform: translateY(-2px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid var(--card-border);
    color: var(--text-primary);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.btn-secondary:hover {
    background: rgba(0, 0, 0, 0.03);
    border-color: rgba(0, 0, 0, 0.15);
    transform: translateY(-2px);
}

/* Section Common Headers */
.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 4rem;
}

.section-header h2 {
    font-size: 2.6rem;
    font-weight: 800;
    margin-bottom: 1.2rem;
    letter-spacing: -0.5px;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

/* Pain Points Section */
.pain-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.pain-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 2.5rem;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: var(--transition-normal);
}

.pain-card:hover {
    border-color: rgba(239, 68, 68, 0.2);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(239, 68, 68, 0.04);
}

.card-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.icon-red {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger-red);
    border: 1px solid rgba(239, 68, 68, 0.18);
}

.pain-card h3 {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.pain-card p {
    color: var(--text-secondary);
    font-size: 0.98rem;
    line-height: 1.7;
}

/* Features Section */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 2.5rem 2rem;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-glow);
    opacity: 0;
    transition: var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--card-border-active);
    background: var(--card-bg-hover);
    box-shadow: 0 15px 30px rgba(0, 242, 254, 0.05);
}

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

.feature-icon-wrap {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    background: rgba(0, 242, 254, 0.05);
    border: 1px solid rgba(0, 242, 254, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-cyan);
    margin-bottom: 1.5rem;
    transition: var(--transition-normal);
}

.feature-card:hover .feature-icon-wrap {
    background: var(--gradient-glow);
    color: var(--bg-dark);
    transform: scale(1.05);
}

.feature-card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* Geo optimization Section */
.geo-container {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 4rem;
    align-items: center;
}

.geo-text h2 {
    font-size: 2.6rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
}

.geo-text p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 2rem;
    line-height: 1.8;
}

.geo-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.stat-item {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--card-border);
    padding: 1.5rem;
    border-radius: 12px;
    backdrop-filter: blur(8px);
}

.stat-num {
    font-size: 2.2rem;
    font-weight: 900;
    color: var(--primary-cyan);
    margin-bottom: 0.3rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 600;
}

.geo-visual {
    position: relative;
    aspect-ratio: 4/3;
    background: radial-gradient(circle at center, #ffffff 0%, #f1f5f9 100%);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.map-svg {
    width: 90%;
    height: 90%;
    opacity: 0.85;
}

.map-svg path {
    fill: #cbd5e1 !important;
}

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

.map-node.active {
    background-color: var(--primary-cyan);
    box-shadow: 0 0 15px var(--primary-cyan);
    animation: nodePulse 2.2s infinite;
}

.map-node-label {
    position: absolute;
    transform: translate(-50%, -100%);
    margin-top: -8px;
    background: rgba(15, 23, 42, 0.95);
    border: 1px solid var(--primary-cyan);
    padding: 3px 9px;
    border-radius: 5px;
    font-size: 0.75rem;
    color: #fff;
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.map-node:hover .map-node-label {
    opacity: 1;
}

@keyframes nodePulse {
    0% { transform: scale(1); opacity: 1; box-shadow: 0 0 0 0 rgba(0, 242, 254, 0.75); }
    70% { transform: scale(1.3); opacity: 0.8; box-shadow: 0 0 0 12px rgba(0, 242, 254, 0); }
    100% { transform: scale(1); opacity: 1; box-shadow: 0 0 0 0 rgba(0, 242, 254, 0); }
}

.map-connection-line {
    position: absolute;
    background: linear-gradient(90deg, var(--primary-cyan) 0%, transparent 100%);
    height: 1px;
    transform-origin: left center;
    animation: flowLine 3s infinite linear;
}

/* Pricing Section */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
    gap: 2rem;
    align-items: stretch;
}

.pricing-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    padding: 3rem 2rem;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: var(--transition-normal);
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.pricing-card.popular {
    border: 2px solid var(--primary-cyan);
    box-shadow: 0 20px 40px rgba(14, 165, 233, 0.08);
    transform: scale(1.03);
    background: linear-gradient(180deg, #ffffff 0%, #f0f9ff 100%);
    z-index: 2;
}

.popular-badge {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--gradient-glow);
    color: #fff;
    padding: 0.5rem 1.5rem;
    border-radius: 99px;
    font-size: 0.85rem;
    font-weight: 800;
    text-transform: uppercase;
    box-shadow: 0 4px 15px rgba(14, 165, 233, 0.3);
}

.pricing-card:hover {
    transform: translateY(-5px);
}

.pricing-card.popular:hover {
    transform: scale(1.03) translateY(-5px);
    box-shadow: 0 25px 50px rgba(14, 165, 233, 0.15);
}

.plan-title {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 0.8rem;
}

.plan-price-wrap {
    display: flex;
    align-items: baseline;
    gap: 4px;
    margin: 1.5rem 0 0.5rem;
}

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

.price {
    font-size: 3.2rem;
    font-weight: 900;
    color: var(--text-primary);
    line-height: 1;
}

.period {
    font-size: 1rem;
    color: var(--text-muted);
}

.alternative-price {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.plan-limits {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--card-border);
    padding: 0.8rem 1.2rem;
    border-radius: 10px;
    display: inline-block;
    color: var(--primary-cyan);
    font-weight: 700;
    font-size: 0.95rem;
    margin-bottom: 2rem;
    text-align: center;
}

.plan-features {
    list-style: none;
    margin-bottom: 3rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    flex-grow: 1;
}

.plan-features li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.plan-features svg {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    color: var(--primary-cyan);
    margin-top: 2px;
}

.plan-btn {
    width: 100%;
}

/* Testimonials Section */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 2rem;
}

.testimonial-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 2.5rem;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: var(--transition-normal);
}

.testimonial-card:hover {
    border-color: rgba(255, 255, 255, 0.15);
    background: var(--card-bg-hover);
    transform: translateY(-3px);
}

.rating {
    display: flex;
    gap: 4px;
    color: #fbbf24;
    margin-bottom: 1.5rem;
}

.testimonial-quote {
    font-size: 1.05rem;
    color: var(--text-primary);
    line-height: 1.8;
    margin-bottom: 2rem;
    font-style: italic;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 16px;
}

.avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--gradient-glow);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    color: var(--bg-dark);
}

.user-info h4 {
    font-size: 1rem;
    font-weight: 700;
}

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

/* FAQ Accordion Section */
.faq-accordion {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.faq-item {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    overflow: hidden;
    transition: var(--transition-normal);
}

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

.faq-header {
    width: 100%;
    padding: 1.5rem 2rem;
    background: none;
    border: none;
    color: var(--text-primary);
    text-align: left;
    font-size: 1.15rem;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    outline: none;
}

.faq-arrow {
    width: 20px;
    height: 20px;
    color: var(--primary-cyan);
    transition: transform var(--transition-normal);
}

.faq-item.active .faq-arrow {
    transform: rotate(180deg);
}

.faq-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
}

.faq-body {
    padding: 0 2rem 1.5rem;
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.7;
    border-top: 1px solid rgba(0, 0, 0, 0.03);
}

/* Blog List Section */
.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.article-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 2.5rem;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: var(--transition-normal);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.article-card:hover {
    transform: translateY(-4px);
    border-color: var(--card-border-active);
    background: var(--card-bg-hover);
}

.article-card-header {
    font-size: 0.85rem;
    color: var(--primary-cyan);
    font-weight: 600;
    margin-bottom: 0.8rem;
    text-transform: uppercase;
}

.article-card h3 {
    font-size: 1.35rem;
    font-weight: 800;
    margin-bottom: 1rem;
    line-height: 1.4;
}

.article-card h3 a {
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition-fast);
}

.article-card h3 a:hover {
    color: var(--primary-cyan);
}

.article-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.article-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.read-more-link {
    color: var(--primary-cyan);
    font-weight: 700;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.read-more-link:hover {
    text-decoration: underline;
}

/* Portal Layout for Article Details */
.portal-layout {
    max-width: 1200px;
    margin: 8rem auto 4rem;
    padding: 0 1.5rem;
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 2.5rem;
    align-items: start;
}

.portal-content {
    background: #ffffff;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    padding: 3rem;
}

.article-hero {
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    padding-bottom: 2rem;
    margin-bottom: 2.5rem;
}

.article-hero h1 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.article-meta {
    color: var(--text-muted);
    font-size: 0.95rem;
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.article-body h2 {
    font-size: 1.8rem;
    font-weight: 800;
    margin-top: 3rem;
    margin-bottom: 1.2rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    padding-bottom: 0.5rem;
}

.article-body h3 {
    font-size: 1.35rem;
    font-weight: 700;
    margin-top: 2rem;
    margin-bottom: 0.8rem;
    color: var(--primary-cyan);
}

.article-body p {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.article-body ul, .article-body ol {
    margin-left: 1.5rem;
    margin-bottom: 1.5rem;
}

.article-body li {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 0.5rem;
}

.article-body a {
    color: var(--primary-cyan);
    text-decoration: none;
    font-weight: 600;
}

.article-body a:hover {
    text-decoration: underline;
}

.article-sidebar {
    background: #ffffff;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 2rem 1.5rem;
    position: sticky;
    top: 100px;
}

.article-sidebar h3 {
    font-size: 1.2rem;
    color: var(--primary-cyan);
    margin-bottom: 1.5rem;
    font-weight: 800;
}

.article-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.article-link {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    background: rgba(0, 0, 0, 0.015);
    border-radius: 8px;
    border: 1px solid rgba(0, 0, 0, 0.03);
    transition: all 0.25s ease;
    font-size: 0.95rem;
}

.article-link:hover, .article-link.active {
    background: rgba(14, 165, 233, 0.08);
    border-color: rgba(14, 165, 233, 0.25);
    color: var(--primary-cyan);
    transform: translateX(3px);
}

.article-action-box {
    margin-top: 3rem;
    padding: 2rem;
    background: linear-gradient(135deg, #ffffff 0%, rgba(14, 165, 233, 0.04) 100%);
    border: 1px solid var(--card-border-active);
    border-radius: 16px;
    text-align: center;
}

.article-action-box h4 {
    font-size: 1.25rem;
    font-weight: 800;
    margin-bottom: 0.8rem;
}

.article-action-box p {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

/* Footer Section */
footer {
    background: var(--bg-deep);
    border-top: 1px solid var(--card-border);
    padding: 5rem 0 3rem;
    position: relative;
    z-index: 1;
}

.footer-grid {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 3rem;
    margin-bottom: 4rem;
}

.footer-brand {
    max-width: 360px;
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-top: 1rem;
    line-height: 1.7;
}

.footer-links {
    display: flex;
    gap: 4rem;
}

.footer-column h4 {
    font-size: 1.05rem;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.footer-column ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.footer-link {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

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

.footer-copyright {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    padding-top: 2rem;
    color: var(--text-muted);
    font-size: 0.85rem;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.footer-seo-meta {
    color: var(--text-muted);
    font-size: 0.75rem;
    text-align: right;
    max-width: 650px;
    line-height: 1.6;
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
    .hero h1 {
        font-size: 3rem;
    }
    .geo-container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    .geo-visual {
        max-width: 550px;
        margin: 0 auto;
    }
    .portal-layout {
        grid-template-columns: 1fr;
        margin-top: 6rem;
    }
    .article-sidebar {
        display: none; /* Hide sidebar list on tablets/mobiles, navigation is handled by index.html or links */
    }
}

@media (max-width: 768px) {
    section {
        padding: 4rem 0;
    }
    
    .hamburger {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 72px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 72px);
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 3rem 1.5rem;
        gap: 2rem;
        transition: var(--transition-normal);
        z-index: 99;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero {
        padding-top: 100px;
    }
    
    .hero h1 {
        font-size: 2.4rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .pricing-card.popular {
        transform: scale(1);
    }
    
    .pricing-card.popular:hover {
        transform: translateY(-5px);
    }
    
    .footer-grid {
        flex-direction: column;
        align-items: flex-start;
        gap: 2rem;
    }
    
    .footer-links {
        width: 100%;
        justify-content: space-between;
        gap: 2rem;
    }
    
    .footer-copyright {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .footer-seo-meta {
        text-align: left;
    }
    
    .portal-content {
        padding: 1.5rem;
        border-radius: 16px;
    }
    
    .article-hero h1 {
        font-size: 1.8rem;
    }
}