/* ==========================================================================
   飞鸟云 - Premium Dark Monochrome Design System
   ========================================================================== */

/* 1. Global Reset & Variables */
:root {
    --bg-base: #080809;
    --bg-surface: #121214;
    --bg-surface-elevated: #1a1a1e;
    
    --border-color: rgba(255, 255, 255, 0.08);
    --border-color-hover: rgba(255, 255, 255, 0.2);
    
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    
    --accent-glow: rgba(255, 255, 255, 0.03);
    
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-heading: 'Outfit', var(--font-sans);
    
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius: 12px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--bg-base);
    color: var(--text-primary);
    font-family: var(--font-sans);
    overflow-x: hidden;
}

body {
    position: relative;
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Canvas Background styling */
#particle-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
    background: radial-gradient(circle at 50% 50%, #0d0d11 0%, #080809 100%);
}

/* 2. Typography & Layout Utilities */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

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

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

.section {
    padding: 100px 0;
    border-bottom: 1px solid var(--border-color);
}

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

.section-title {
    font-size: 2.5rem;
    margin-bottom: 16px;
    position: relative;
    display: inline-block;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    font-weight: 300;
}

/* 3. Button Design System */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition-smooth);
    border: 1px solid transparent;
}

.btn-large {
    padding: 16px 36px;
    font-size: 1.05rem;
}

.btn-small {
    padding: 8px 18px;
    font-size: 0.85rem;
}

.btn-primary {
    background-color: var(--text-primary);
    color: #000000;
    box-shadow: 0 4px 20px rgba(255, 255, 255, 0.15);
}

.btn-primary:hover {
    background-color: #e5e5e5;
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(255, 255, 255, 0.25);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-primary);
    border-color: var(--border-color-hover);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.05);
    border-color: var(--text-primary);
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
}

/* Text glow utilities */
.text-glow {
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.4);
}

.text-green {
    color: #4ade80;
    text-shadow: 0 0 10px rgba(74, 222, 128, 0.2);
}

.text-yellow {
    color: #facc15;
    text-shadow: 0 0 10px rgba(250, 204, 21, 0.2);
}

/* 4. Header & Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background-color: rgba(8, 8, 9, 0.7);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition-smooth);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    font-size: 1.5rem;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    font-family: var(--font-heading);
    letter-spacing: -0.03em;
}

.nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-weight: 400;
}

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

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

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

.mobile-toggle .bar {
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    transition: var(--transition-smooth);
}

/* 5. Hero Section */
.hero {
    padding: 160px 0 100px 0;
    border-bottom: 1px solid var(--border-color);
}

.hero-container {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 48px;
    align-items: center;
}

.badge-new {
    display: inline-block;
    padding: 6px 14px;
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 500;
    margin-bottom: 24px;
}

.hero-title {
    font-size: 3.75rem;
    line-height: 1.15;
    margin-bottom: 20px;
    font-family: var(--font-heading);
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    font-weight: 300;
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 50px;
}

.hero-stats {
    display: flex;
    gap: 48px;
    border-top: 1px solid var(--border-color);
    padding-top: 32px;
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stat-value {
    font-size: 2rem;
    font-family: var(--font-heading);
    font-weight: 700;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Hero Visual: Dashboard Mockup */
.dashboard-mock {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 40px rgba(255, 255, 255, 0.02);
}

.dashboard-header {
    background-color: rgba(0, 0, 0, 0.2);
    padding: 14px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 16px;
}

.dashboard-dots {
    display: flex;
    gap: 6px;
}

.dashboard-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.dot-red { background-color: #ff5f56; }
.dot-yellow { background-color: #ffbd2e; }
.dot-green { background-color: #27c93f; }

.dashboard-title {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-family: var(--font-sans);
}

.dashboard-body {
    padding: 24px;
}

.db-stat-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 24px;
}

.db-card {
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.db-card-title {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.db-card-val {
    font-size: 1rem;
    font-weight: 500;
}

.db-chart-container {
    background-color: rgba(255, 255, 255, 0.01);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 24px;
}

.db-chart-title {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.db-chart {
    height: 80px;
    position: relative;
}

.chart-svg {
    width: 100%;
    height: 100%;
}

.chart-line {
    stroke-dasharray: 600;
    stroke-dashoffset: 600;
    animation: drawLine 4s infinite linear;
}

@keyframes drawLine {
    0% { stroke-dashoffset: 600; }
    50% { stroke-dashoffset: 0; }
    100% { stroke-dashoffset: -600; }
}

.db-logs {
    background-color: #050506;
    border-radius: 8px;
    padding: 16px;
    font-family: monospace;
    font-size: 0.75rem;
    color: var(--text-secondary);
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.db-log-line {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* 6. Core Advantages Section */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.advantage-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 40px;
    transition: var(--transition-smooth);
}

.advantage-card:hover {
    border-color: var(--border-color-hover);
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.adv-icon {
    font-size: 2.25rem;
    margin-bottom: 20px;
}

.adv-title {
    font-size: 1.35rem;
    margin-bottom: 12px;
}

.adv-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 300;
}

/* 7. Node Status Section */
.status-board {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 32px;
}

.status-control {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 24px;
    margin-bottom: 24px;
}

.status-legend {
    display: flex;
    gap: 24px;
}

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

.dot-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 0 8px currentColor;
}

.dot-green {
    background-color: #4ade80;
    color: #4ade80;
}

.dot-yellow {
    background-color: #facc15;
    color: #facc15;
}

.node-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.node-card {
    background-color: rgba(255, 255, 255, 0.01);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition-smooth);
}

.node-card:hover {
    background-color: rgba(255, 255, 255, 0.03);
    border-color: var(--border-color-hover);
}

.node-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.node-flag {
    font-size: 1.25rem;
}

.node-name {
    font-size: 0.95rem;
    font-weight: 500;
}

.node-ping-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
}

.node-ping {
    font-size: 0.9rem;
    font-weight: 600;
}

/* Rotation animation during ping test */
.pinging {
    opacity: 0.5;
    transition: var(--transition-smooth);
}

/* 8. Pricing Section */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    align-items: stretch;
}

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

.pricing-card:hover {
    border-color: var(--border-color-hover);
    transform: translateY(-4px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
}

.pricing-card.featured {
    border-color: #ffffff;
    box-shadow: 0 20px 45px rgba(255, 255, 255, 0.03);
    transform: scale(1.03);
    z-index: 2;
}

.pricing-card.featured:hover {
    transform: scale(1.03) translateY(-4px);
    box-shadow: 0 25px 50px rgba(255, 255, 255, 0.05);
}

.badge-featured {
    position: absolute;
    top: 20px;
    right: 20px;
    background-color: #ffffff;
    color: #000000;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 50px;
}

.pricing-header {
    margin-bottom: 32px;
}

.plan-name {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.plan-price {
    display: flex;
    align-items: baseline;
    margin-bottom: 12px;
}

.price-symbol {
    font-size: 1.5rem;
    font-weight: 500;
}

.price-amount {
    font-size: 3.5rem;
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1;
}

.price-period {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-left: 4px;
}

.plan-desc {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.pricing-body {
    flex-grow: 1;
    margin-bottom: 40px;
}

.plan-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.plan-features li {
    font-size: 0.9rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.plan-features li::before {
    content: "✓";
    color: #ffffff;
    font-weight: bold;
}

.plan-features li.disabled {
    color: var(--text-muted);
}

.plan-features li.disabled::before {
    content: "✕";
    color: var(--text-muted);
}

.pricing-footer {
    margin-top: auto;
}

/* 9. Reviews Section */
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.review-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 32px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: var(--transition-smooth);
}

.review-card:hover {
    border-color: var(--border-color-hover);
}

.review-stars {
    margin-bottom: 16px;
    font-size: 1rem;
    letter-spacing: 2px;
}

.review-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
    font-style: italic;
    line-height: 1.7;
}

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

.user-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.user-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.user-name {
    font-size: 0.9rem;
    font-weight: 600;
}

.user-title {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* 10. Knowledge Base & Tutorials Section */
.tutorials-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.tutorial-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 28px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    transition: var(--transition-smooth);
}

.tutorial-card:hover {
    border-color: var(--border-color-hover);
    transform: translateY(-2px);
}

.tut-tag {
    align-self: flex-start;
    padding: 4px 10px;
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.tut-title {
    font-size: 1.15rem;
    line-height: 1.4;
}

.tut-title a:hover {
    text-decoration: underline;
}

.tut-excerpt {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.tut-meta {
    display: flex;
    gap: 16px;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: auto;
    border-top: 1px solid rgba(255, 255, 255, 0.03);
    padding-top: 12px;
}

/* 11. FAQ Section */
.faq-accordion {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

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

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

.faq-question {
    width: 100%;
    padding: 24px;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.05rem;
    font-weight: 500;
    text-align: left;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-family: var(--font-sans);
}

.faq-icon {
    font-size: 1.25rem;
    color: var(--text-secondary);
    transition: var(--transition-smooth);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    border-top: 1px solid transparent;
}

.faq-answer p {
    padding: 0 24px 24px 24px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

.faq-item.active .faq-answer {
    border-top-color: var(--border-color);
}

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

/* 12. Call to Action Banner */
.cta-banner {
    padding: 80px 0;
    background: linear-gradient(180deg, var(--bg-base) 0%, rgba(255,255,255,0.01) 50%, var(--bg-base) 100%);
    border-bottom: 1px solid var(--border-color);
    text-align: center;
}

.cta-container {
    max-width: 800px;
}

.cta-title {
    font-size: 2.25rem;
    margin-bottom: 16px;
}

.cta-text {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

/* 13. Footer Section */
.footer {
    background-color: #030304;
    padding: 80px 0 32px 0;
}

.footer-container {
    display: flex;
    justify-content: space-between;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand {
    max-width: 320px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.footer-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.footer-links-group {
    display: flex;
    gap: 80px;
}

.footer-links-col {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.footer-col-title {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
    color: var(--text-muted);
}

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

.footer-links-col a:hover {
    color: var(--text-primary);
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 32px;
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* 14. Responsive Layout adjustments */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .pricing-card.featured:hover {
        transform: translateY(-4px);
    }
    
    .reviews-grid {
        grid-template-columns: 1fr;
        max-width: 600px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .header-container {
        height: 70px;
    }
    
    .nav {
        display: none; /* Handled by JavaScript slide menu or simplified mobile layout */
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: var(--bg-base);
        border-bottom: 1px solid var(--border-color);
        flex-direction: column;
        padding: 30px 24px;
        gap: 20px;
        align-items: flex-start;
    }
    
    .nav.mobile-active {
        display: flex;
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-subtitle {
        margin: 0 auto 30px auto;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
        gap: 24px;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .node-grid {
        grid-template-columns: 1fr;
    }
    
    .status-control {
        flex-direction: column;
        gap: 16px;
        align-items: flex-start;
    }
    
    .tutorials-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-container {
        flex-direction: column;
        gap: 40px;
    }
    
    .footer-links-group {
        gap: 40px;
    }
}

/* 15. Article Detail Page Styles */
.article-page {
    padding-top: 140px;
    padding-bottom: 80px;
}

.article-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 24px;
}

.article-nav-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.article-nav-back:hover {
    color: var(--text-primary);
    transform: translateX(-4px);
}

.article-header {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 32px;
    margin-bottom: 40px;
}

.article-title-detail {
    font-size: 2.5rem;
    line-height: 1.25;
    margin-bottom: 20px;
    font-family: var(--font-heading);
}

.article-meta-detail {
    display: flex;
    gap: 24px;
    color: var(--text-muted);
    font-size: 0.875rem;
}

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

.article-content {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

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

.article-content h2 {
    font-size: 1.75rem;
    margin-top: 48px;
    margin-bottom: 20px;
    color: var(--text-primary);
    border-left: 4px solid var(--text-primary);
    padding-left: 16px;
}

.article-content h3 {
    font-size: 1.35rem;
    margin-top: 36px;
    margin-bottom: 16px;
    color: var(--text-primary);
}

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

.article-content li {
    margin-bottom: 12px;
}

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

.article-content blockquote {
    border-left: 4px solid var(--border-color-hover);
    background-color: rgba(255, 255, 255, 0.02);
    padding: 20px;
    margin: 32px 0;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
    font-style: italic;
}

.article-content code {
    background-color: rgba(255, 255, 255, 0.05);
    padding: 3px 6px;
    border-radius: 4px;
    font-family: monospace;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.article-content pre {
    background-color: #050506;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 24px;
    overflow-x: auto;
    margin-bottom: 32px;
}

.article-content pre code {
    background: none;
    padding: 0;
    font-size: 0.85rem;
}

.article-content img {
    max-width: 100%;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    margin: 32px 0;
}

.article-cta {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 32px;
    margin-top: 60px;
    text-align: center;
}

.article-cta-title {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.article-cta-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 24px;
}