/* Import premium modern fonts */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Space+Grotesk:wght@400;500;600;700&display=swap');

/* Core Design System Tokens */
:root {
    --bg-main: #05060f;
    --bg-darker: #020307;
    --bg-card: rgba(13, 17, 39, 0.5);
    --bg-card-hover: rgba(20, 26, 56, 0.7);
    --border-color: rgba(97, 122, 245, 0.12);
    --border-color-hover: rgba(97, 122, 245, 0.35);
    
    --primary: #617AF5;
    --primary-hover: #7f95ff;
    --primary-glow: rgba(97, 122, 245, 0.35);
    
    --secondary: #a27cf8;
    --secondary-glow: rgba(162, 124, 248, 0.3);
    
    --accent: #38d3ff;
    --accent-glow: rgba(56, 211, 255, 0.25);
    
    --text-white: #ffffff;
    --text-muted: #9faec7;
    --text-dark: #4e5d78;
    
    --font-heading: 'Space Grotesk', 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-body: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.15), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-glow: 0 0 20px rgba(97, 122, 245, 0.3);
}

/* Base resets & styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

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

/* Dynamic background canvas styling */
#bg-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -2;
    pointer-events: none;
}

/* Background grid overlay */
.bg-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(97, 122, 245, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(97, 122, 245, 0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(circle 350px at var(--mouse-global-x, 50%) var(--mouse-global-y, 50%), black 10%, rgba(0, 0, 0, 0.25) 45%, transparent 100%);
    -webkit-mask-image: radial-gradient(circle 350px at var(--mouse-global-x, 50%) var(--mouse-global-y, 50%), black 10%, rgba(0, 0, 0, 0.25) 45%, transparent 100%);
    z-index: -1;
    pointer-events: none;
    transition: mask-image 0.15s ease, -webkit-mask-image 0.15s ease;
}

/* Layout container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography elements */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.02em;
}

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

/* Navigation Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background: rgba(6, 9, 24, 0.7);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition-normal);
}

header.scrolled {
    background: rgba(3, 5, 12, 0.9);
    box-shadow: var(--shadow-lg);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img {
    height: 38px;
    width: auto;
    object-fit: contain;
}

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

.nav-link {
    font-weight: 500;
    font-size: 15px;
    color: var(--text-muted);
    position: relative;
    padding: 8px 0;
}

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

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

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

.cta-button {
    background: linear-gradient(135deg, var(--primary) 0%, #445ac4 100%);
    color: var(--text-white);
    font-weight: 600;
    font-size: 14px;
    padding: 10px 24px;
    border-radius: 50px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 4px 15px rgba(97, 122, 245, 0.3);
    cursor: pointer;
    transition: var(--transition-normal);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(97, 122, 245, 0.5);
    background: linear-gradient(135deg, var(--primary-hover) 0%, var(--primary) 100%);
}

/* Mobile Nav Toggle */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 4px;
}

.mobile-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-white);
    transition: var(--transition-normal);
}

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

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 10;
}

.announcement-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(97, 122, 245, 0.12);
    border: 1px solid rgba(97, 122, 245, 0.25);
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 13px;
    font-weight: 500;
    color: var(--secondary);
    margin-bottom: 24px;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(162, 124, 248, 0.4); }
    70% { box-shadow: 0 0 0 10px rgba(162, 124, 248, 0); }
    100% { box-shadow: 0 0 0 0 rgba(162, 124, 248, 0); }
}

.hero h1 {
    font-size: 58px;
    line-height: 1.15;
    margin-bottom: 24px;
    background: linear-gradient(to right, #ffffff 30%, #b5c4ff 70%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 19px;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
}

.hero-ctas {
    display: flex;
    justify-content: center;
    gap: 16px;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-white);
    border: 1px solid rgba(255, 255, 255, 0.1);
    font-weight: 600;
    font-size: 14px;
    padding: 10px 24px;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition-normal);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 600px;
    margin: 80px auto 0 auto;
    padding: 24px;
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border-radius: 16px;
    border: 1px solid var(--border-color);
}

.stat-item h3 {
    font-size: 32px;
    color: var(--secondary);
    margin-bottom: 4px;
}

.stat-item p {
    font-size: 13px;
    color: var(--text-muted);
}

/* Features Section */
.features {
    padding: 100px 0;
    position: relative;
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 60px auto;
}

.section-header h2 {
    font-size: 38px;
    margin-bottom: 16px;
}

.section-header p {
    color: var(--text-muted);
    font-size: 16px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 40px 32px;
    border-radius: 16px;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle 120px at var(--mouse-x, 0) var(--mouse-y, 0), rgba(97, 122, 245, 0.15), transparent 80%);
    opacity: 0;
    transition: opacity var(--transition-normal);
    pointer-events: none;
}

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

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

.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(97, 122, 245, 0.1);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    margin-bottom: 24px;
    border: 1px solid rgba(97, 122, 245, 0.2);
}

.feature-card:hover .feature-icon {
    background: var(--primary);
    color: var(--text-white);
    border-color: var(--primary);
    box-shadow: 0 0 15px rgba(97, 122, 245, 0.4);
}

.feature-card h3 {
    font-size: 20px;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 14px;
}

/* Pricing Section */
.pricing {
    padding: 100px 0;
    background: linear-gradient(180deg, transparent 0%, var(--bg-darker) 100%);
    border-top: 1px solid var(--border-color);
    position: relative;
}

/* Horizontal Align Rule: "所有价格要同排" */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    align-items: stretch;
}

.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 40px 32px;
    display: flex;
    flex-direction: column;
    position: relative;
    transition: var(--transition-normal);
}

.pricing-card.featured {
    border-color: var(--primary);
    box-shadow: 0 10px 30px rgba(97, 122, 245, 0.2);
    background: linear-gradient(180deg, rgba(13, 17, 39, 0.85) 0%, rgba(8, 10, 24, 0.9) 100%);
    transform: scale(1.03);
}

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

.pricing-card.featured:hover {
    transform: translateY(-5px) scale(1.03);
    border-color: var(--primary-hover);
    box-shadow: 0 15px 40px rgba(97, 122, 245, 0.35);
}

.card-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--accent);
    color: var(--bg-darker);
    font-size: 11px;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 100px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pricing-card.featured .card-badge {
    background: var(--primary);
}

.pricing-card.plan-3 .card-badge {
    background: var(--secondary);
    color: var(--bg-darker);
}

.plan-name {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 24px;
}

.plan-price-box {
    margin-bottom: 28px;
    display: flex;
    align-items: baseline;
}

.price-currency {
    font-size: 28px;
    font-weight: 800;
    color: var(--text-white);
}

.price-amount {
    font-size: 52px;
    font-weight: 800;
    color: var(--text-white);
    line-height: 1;
}

.price-period {
    font-size: 14px;
    color: var(--text-muted);
    margin-left: 6px;
}

.plan-features-list {
    list-style: none;
    margin-bottom: 40px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    flex-grow: 1;
}

.plan-feature {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: #cdd9e8;
}

.plan-feature svg {
    color: var(--secondary);
    flex-shrink: 0;
}

.pricing-card.featured .plan-feature svg {
    color: var(--primary);
}

.pricing-card.plan-3 .plan-feature svg {
    color: var(--secondary);
}

.plan-btn {
    width: 100%;
    padding: 14px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 15px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition-normal);
}

.plan-btn-outline {
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-white);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.plan-btn-outline:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
}

.plan-btn-primary {
    background: var(--primary);
    color: var(--text-white);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 4px 15px rgba(97, 122, 245, 0.25);
}

.plan-btn-primary:hover {
    background: var(--primary-hover);
    box-shadow: 0 6px 20px rgba(97, 122, 245, 0.4);
}

/* Articles Section */
.articles-section {
    padding: 100px 0;
    background-color: var(--bg-darker);
    position: relative;
}

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

.article-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: var(--transition-normal);
}

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

.article-banner {
    height: 120px;
    background: linear-gradient(135deg, rgba(97, 122, 245, 0.2) 0%, rgba(56, 211, 255, 0.1) 100%);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-hover);
    font-size: 32px;
}

.article-badge {
    position: absolute;
    bottom: 12px;
    left: 16px;
    background: rgba(97, 122, 245, 0.2);
    border: 1px solid rgba(97, 122, 245, 0.3);
    padding: 3px 10px;
    border-radius: 100px;
    font-size: 11px;
    color: var(--secondary);
}

.article-info {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.article-info h3 {
    font-size: 17px;
    margin-bottom: 12px;
    line-height: 1.4;
    color: var(--text-white);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-info h3 a:hover {
    color: var(--secondary);
}

.article-summary {
    color: var(--text-muted);
    font-size: 13px;
    margin-bottom: 20px;
    flex-grow: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--text-dark);
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.read-more-link {
    color: var(--primary-hover);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.read-more-link:hover {
    color: var(--secondary);
}

/* Article View Templates styling (for individual blog pages) */
.article-view {
    padding: 140px 0 100px 0;
}

.article-container {
    max-width: 800px;
    margin: 0 auto;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 50px;
    border-radius: 24px;
}

.article-header {
    margin-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding-bottom: 30px;
}

.article-header h1 {
    font-size: 36px;
    line-height: 1.3;
    margin-bottom: 20px;
    background: linear-gradient(to right, #ffffff, #b5c4ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.article-meta-data {
    display: flex;
    gap: 24px;
    color: var(--text-muted);
    font-size: 14px;
}

.article-meta-data span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.article-body {
    font-size: 16px;
    line-height: 1.8;
    color: #d1dceb;
}

.article-body p {
    margin-bottom: 24px;
}

.article-body h2 {
    font-size: 22px;
    color: var(--secondary);
    margin: 40px 0 20px 0;
}

.article-body h3 {
    font-size: 18px;
    color: var(--text-white);
    margin: 30px 0 16px 0;
}

.article-body ul, .article-body ol {
    margin-bottom: 24px;
    padding-left: 20px;
}

.article-body li {
    margin-bottom: 10px;
}

.article-body strong {
    color: var(--text-white);
}

.article-body blockquote {
    border-left: 4px solid var(--primary);
    background: rgba(97, 122, 245, 0.08);
    padding: 16px 24px;
    border-radius: 0 8px 8px 0;
    margin-bottom: 24px;
    font-style: italic;
    color: #b5c4ff;
}

.article-nav-links {
    margin-top: 50px;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.article-nav-item {
    flex: 1;
}

.article-nav-item.next {
    text-align: right;
}

.article-nav-label {
    display: block;
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.article-nav-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-hover);
}

.article-nav-title:hover {
    color: var(--secondary);
}

/* User Reviews Section */
.reviews-section {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--bg-darker) 0%, var(--bg-main) 100%);
    position: relative;
}

.reviews-carousel-wrapper {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    overflow: hidden;
}

.reviews-track {
    display: flex;
    transition: transform var(--transition-slow);
    gap: 30px;
}

.review-slide {
    flex: 0 0 100%;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 40px;
    box-shadow: var(--shadow-md);
    position: relative;
}

.review-stars {
    display: flex;
    gap: 4px;
    color: #ffb800;
    margin-bottom: 20px;
}

.review-text {
    font-size: 16px;
    color: #d1dceb;
    margin-bottom: 30px;
    font-style: italic;
}

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

.review-user-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--bg-main);
    font-size: 18px;
}

.review-user-name {
    font-weight: 600;
    font-size: 15px;
    color: var(--text-white);
}

.review-user-title {
    font-size: 12px;
    color: var(--text-muted);
}

.carousel-indicators {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 30px;
}

.indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    cursor: pointer;
    transition: var(--transition-fast);
}

.indicator.active {
    background: var(--primary);
    width: 24px;
    border-radius: 4px;
}

/* FAQ Section */
.faq-section {
    padding: 100px 0;
    border-top: 1px solid var(--border-color);
    position: relative;
}

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

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    transition: var(--transition-normal);
}

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

.faq-question {
    width: 100%;
    padding: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: none;
    border: none;
    color: var(--text-white);
    font-size: 16px;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
}

.faq-icon {
    font-size: 20px;
    color: var(--text-muted);
    transition: transform var(--transition-normal);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
    color: var(--primary);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal) ease;
    padding: 0 24px;
    color: var(--text-muted);
    font-size: 14px;
}

.faq-item.active .faq-answer {
    padding-bottom: 24px;
}

/* Footer Section */
footer {
    background: var(--bg-darker);
    border-top: 1px solid var(--border-color);
    padding: 80px 0 30px 0;
    position: relative;
    z-index: 10;
}

.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr 1.5fr;
    gap: 40px;
    margin-bottom: 60px;
}

.footer-brand h3 {
    font-size: 20px;
    margin-bottom: 16px;
}

.footer-description {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 20px;
    max-width: 320px;
}

.footer-links-column h4 {
    font-size: 15px;
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-white);
}

.footer-links-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links-list a {
    font-size: 14px;
    color: var(--text-muted);
}

.footer-links-list a:hover {
    color: var(--secondary);
    padding-left: 4px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 30px;
    font-size: 13px;
    color: var(--text-dark);
}

.footer-legal-links {
    display: flex;
    gap: 24px;
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
    .features-grid,
    .pricing-grid,
    .articles-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pricing-card.featured {
        transform: scale(1);
    }
    
    .pricing-card.featured:hover {
        transform: translateY(-5px);
    }
    
    .footer-top {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none; /* Mobile menu toggled by JS */
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    /* Mobile nav menu styles when open */
    .nav-menu.mobile-open {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background: rgba(3, 5, 12, 0.95);
        backdrop-filter: blur(20px);
        padding: 40px;
        border-bottom: 1px solid var(--border-color);
        z-index: 99;
        gap: 24px;
    }
    
    .hero h1 {
        font-size: 40px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .features-grid,
    .pricing-grid,
    .articles-grid {
        grid-template-columns: 1fr;
    }
    
    .section-header h2 {
        font-size: 30px;
    }
    
    .footer-top {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    
    .article-container {
        padding: 24px;
    }
    
    .article-header h1 {
        font-size: 26px;
    }
}