/* style.css - 三番云官网落地页样式表 (天空蓝与白云主题) */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
    --bg-dark: #f0f9ff;
    --bg-card: rgba(255, 255, 255, 0.55);
    --bg-card-hover: rgba(255, 255, 255, 0.85);
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --accent-blue: #0284c7;
    --accent-purple: #4f46e5;
    --border-color: rgba(255, 255, 255, 0.7);
    --shadow-cloud: 0 10px 30px -10px rgba(14, 165, 233, 0.15);
    --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    overflow-x: hidden;
}

body {
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
    line-height: 1.6;
    background: linear-gradient(180deg, #bae6fd 0%, #e0f2fe 50%, #f0f9ff 100%) fixed;
}

/* Scrollbar Style */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #e0f2fe;
}
::-webkit-scrollbar-thumb {
    background: #bae6fd;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #7dd3fc;
}

/* Cloud Floating Background Elements */
.cloud-bg-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

/* Three main background clouds (large, medium, small) */
.bg-cloud {
    position: absolute;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.85) 0%, rgba(255, 255, 255, 0) 70%);
    border-radius: 50%;
    filter: blur(40px);
}

.bg-cloud-1 {
    width: 600px;
    height: 600px;
    top: -10%;
    right: -10%;
    animation: pulse-glow 15s infinite alternate;
}

.bg-cloud-2 {
    width: 500px;
    height: 500px;
    top: 45%;
    left: -10%;
    animation: pulse-glow 18s infinite alternate-reverse;
}

.bg-cloud-3 {
    width: 700px;
    height: 700px;
    bottom: -15%;
    right: 15%;
    animation: pulse-glow 22s infinite alternate;
}

@keyframes pulse-glow {
    0% { transform: scale(1) translate(0, 0); opacity: 0.8; }
    50% { transform: scale(1.15) translate(30px, -20px); opacity: 1; }
    100% { transform: scale(0.9) translate(-10px, 10px); opacity: 0.7; }
}

/* Floating CSS Cloud Particles */
.floating-cloud-particle {
    position: absolute;
    background: rgba(255, 255, 255, 0.65);
    border-radius: 100px;
    height: 40px;
    width: 120px;
    filter: blur(1px);
    box-shadow: 0 4px 15px rgba(14, 165, 233, 0.05);
}
.floating-cloud-particle::before,
.floating-cloud-particle::after {
    content: '';
    position: absolute;
    background: rgba(255, 255, 255, 0.65);
    border-radius: 50%;
}
.floating-cloud-particle::before {
    width: 50px;
    height: 50px;
    top: -20px;
    left: 20px;
}
.floating-cloud-particle::after {
    width: 60px;
    height: 60px;
    top: -25px;
    right: 20px;
}

.particle-1 {
    top: 15%;
    left: -150px;
    animation: float-horizontal 65s linear infinite;
    transform: scale(0.8);
}
.particle-2 {
    top: 55%;
    left: -150px;
    animation: float-horizontal 85s linear infinite;
    animation-delay: -20s;
    transform: scale(1.2);
}
.particle-3 {
    top: 80%;
    left: -150px;
    animation: float-horizontal 105s linear infinite;
    animation-delay: -45s;
    transform: scale(0.9);
}

@keyframes float-horizontal {
    0% { left: -200px; }
    100% { left: calc(100% + 200px); }
}

/* Typography & Gradient Text */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.gradient-text {
    background: linear-gradient(135deg, #0f172a 30%, #1e3a8a 70%, #0284c7 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.gradient-text-alt {
    background: linear-gradient(135deg, #0284c7 0%, #4f46e5 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Header & Navigation */
header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(224, 242, 254, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: var(--border-color) 1px solid;
    transition: var(--transition-smooth);
}

header.scrolled {
    background: rgba(224, 242, 254, 0.95);
    box-shadow: 0 10px 30px -10px rgba(14, 165, 233, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.logo-cloud-icon {
    width: 32px;
    height: 32px;
    fill: var(--accent-blue);
    filter: drop-shadow(0 0 4px rgba(56, 189, 248, 0.5));
}

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

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

.nav-link:hover {
    color: var(--text-primary);
    text-shadow: 0 0 8px rgba(56, 189, 248, 0.3);
}

/* Cloud Button Styling */
.btn-cloud {
    position: relative;
    background: #ffffff;
    color: #0f172a;
    border: none;
    padding: 12px 30px;
    font-weight: 600;
    border-radius: 100px; /* Pill body */
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: var(--transition-smooth);
    box-shadow: 0 6px 18px rgba(14, 165, 233, 0.15), 
                inset 0 -4px 6px rgba(15, 23, 42, 0.05);
    z-index: 1;
    font-family: 'Outfit', sans-serif;
    text-decoration: none;
    overflow: visible;
}

/* Cloud shape pseudo-elements */
.btn-cloud::before, 
.btn-cloud::after {
    content: '';
    position: absolute;
    background: #ffffff;
    border-radius: 50%;
    z-index: -1;
    transition: var(--transition-smooth);
}

/* Small cloud bump */
.btn-cloud::before {
    width: 20px;
    height: 20px;
    top: -8px;
    left: 15px;
}

/* Medium cloud bump */
.btn-cloud::after {
    width: 26px;
    height: 26px;
    top: -12px;
    right: 20px;
}

.btn-cloud:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 10px 24px rgba(14, 165, 233, 0.25), 
                inset 0 -2px 4px rgba(15, 23, 42, 0.03);
    color: var(--accent-blue);
}

.btn-cloud:hover::before {
    transform: scale(1.15) translateY(-2px);
}

.btn-cloud:hover::after {
    transform: scale(1.15) translateY(-2px);
}

.btn-cloud:active {
    transform: translateY(-1px) scale(0.98);
}

/* Mini mobile menu button */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    font-size: 1.5rem;
}

/* Container & Sections */
main {
    position: relative;
    z-index: 1;
}

.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 80px 24px;
}

/* Hero Section */
.hero-section {
    min-height: 85vh;
    display: flex;
    align-items: center;
    padding-top: 40px;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 48px;
    align-items: center;
    width: 100%;
}

.hero-content h1 {
    font-size: 3.5rem;
    line-height: 1.15;
    margin-bottom: 24px;
}

.hero-content p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 580px;
}

.hero-actions {
    display: flex;
    gap: 20px;
    align-items: center;
}

.btn-secondary {
    border: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.4);
    color: var(--text-primary);
    padding: 12px 30px;
    font-weight: 500;
    border-radius: 100px;
    text-decoration: none;
    transition: var(--transition-smooth);
    font-family: 'Outfit', sans-serif;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.7);
    border-color: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
}

/* Floating Hero Cloud Asset */
.hero-visual {
    display: flex;
    justify-content: center;
    position: relative;
}

.floating-hero-cloud {
    width: 100%;
    max-width: 380px;
    filter: drop-shadow(0 20px 40px rgba(14, 165, 233, 0.15));
    animation: hero-float-anim 6s ease-in-out infinite alternate;
}

@keyframes hero-float-anim {
    0% { transform: translateY(0); }
    100% { transform: translateY(-25px); }
}

/* Features Section */
.section-title-wrap {
    text-align: center;
    margin-bottom: 56px;
}

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

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 36px;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.feature-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-8px);
    border-color: rgba(14, 165, 233, 0.3);
    box-shadow: var(--shadow-cloud);
}

.feature-icon-wrapper {
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.2), rgba(129, 140, 248, 0.2));
    width: 60px;
    height: 60px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    border: 1px solid rgba(56, 189, 248, 0.3);
}

.feature-icon {
    width: 28px;
    height: 28px;
    fill: var(--accent-blue);
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
}

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

/* Pricing Section */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    align-items: stretch;
}

@media (min-width: 1024px) {
    .pricing-grid {
        grid-template-columns: repeat(5, 1fr); /* 价格同一水平 - 桌面端排成一行 */
    }
}

.pricing-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 32px 20px;
    text-align: center;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    position: relative;
}

.pricing-card.popular {
    border-color: rgba(2, 132, 199, 0.4);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.8) 0%, rgba(255, 255, 255, 0.5) 100%);
    box-shadow: 0 15px 35px -10px rgba(14, 165, 233, 0.15);
}

@media (min-width: 1024px) {
    .pricing-card.popular {
        transform: scale(1.03);
    }
    .pricing-card.popular:hover {
        transform: translateY(-8px) scale(1.05);
    }
}

.pricing-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-8px);
    border-color: rgba(14, 165, 233, 0.3);
    box-shadow: var(--shadow-cloud);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    color: #fff;
    padding: 4px 16px;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    box-shadow: 0 4px 10px rgba(14, 165, 233, 0.2);
}

.pricing-card h3 {
    font-size: 1.4rem;
    margin-bottom: 8px;
}

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

.pricing-price {
    font-family: 'Outfit', sans-serif;
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 24px;
    display: flex;
    justify-content: center;
    align-items: baseline;
    color: var(--accent-blue);
}

.pricing-price span {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 400;
    margin-left: 4px;
}

.pricing-features-list {
    list-style: none;
    text-align: left;
    margin-bottom: 32px;
    flex-grow: 1;
}

.pricing-features-list li {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    line-height: 1.4;
}

.pricing-features-list li svg {
    width: 16px;
    height: 16px;
    fill: var(--accent-blue);
    flex-shrink: 0;
}

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

/* User Reviews Section */
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.review-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 30px;
    transition: var(--transition-smooth);
}

.review-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-4px);
    border-color: rgba(255, 255, 255, 0.9);
    box-shadow: var(--shadow-cloud);
}

.review-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

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

.user-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid rgba(14, 165, 233, 0.2);
}

.user-name {
    font-weight: 600;
    font-size: 1rem;
    color: var(--text-primary);
}

.user-status {
    font-size: 0.75rem;
    color: var(--accent-blue);
    display: block;
}

.star-rating {
    display: flex;
    gap: 2px;
}

.star-icon {
    width: 16px;
    height: 16px;
    fill: #f59e0b;
}

.review-content {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    font-style: italic;
}

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

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

.faq-item:hover {
    border-color: rgba(14, 165, 233, 0.2);
    background: var(--bg-card-hover);
}

.faq-question {
    width: 100%;
    background: none;
    border: none;
    padding: 24px;
    text-align: left;
    color: var(--text-primary);
    font-family: 'Outfit', sans-serif;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.faq-toggle-icon {
    width: 20px;
    height: 20px;
    fill: var(--text-secondary);
    transition: var(--transition-smooth);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.faq-answer-inner {
    padding: 0 24px 24px 24px;
}

/* Active FAQ states */
.faq-item.active {
    background: var(--bg-card-hover);
    border-color: rgba(14, 165, 233, 0.3);
}

.faq-item.active .faq-toggle-icon {
    transform: rotate(180deg);
    fill: var(--accent-blue);
}

.faq-item.active .faq-answer {
    max-height: 250px;
}

/* SEO Articles Section */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 30px;
}

.article-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    overflow: hidden;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
}

.article-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-6px);
    border-color: rgba(14, 165, 233, 0.3);
    box-shadow: var(--shadow-cloud);
}

.article-thumbnail-placeholder {
    height: 180px;
    background: linear-gradient(135deg, #bae6fd, #e0f2fe);
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.article-thumbnail-placeholder::before {
    content: '';
    position: absolute;
    width: 140px;
    height: 70px;
    background: rgba(255, 255, 255, 0.6);
    filter: blur(15px);
    border-radius: 50%;
}

.article-thumbnail-cloud {
    width: 64px;
    height: 64px;
    fill: rgba(255, 255, 255, 0.15);
    z-index: 1;
}

/* Cute Cloud Cover SVG specific styling */
.cute-cloud-svg {
    z-index: 2;
    filter: drop-shadow(0 6px 12px rgba(14, 165, 233, 0.15));
    animation: cute-float 4s ease-in-out infinite alternate;
}

@keyframes cute-float {
    0% { transform: translateY(0); }
    100% { transform: translateY(-8px); }
}

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

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

.article-body h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    line-height: 1.4;
}

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

.article-body h3 a:hover {
    color: var(--accent-blue);
}

.article-excerpt {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 20px;
    flex-grow: 1;
}

.article-readmore {
    color: var(--accent-blue);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: var(--transition-smooth);
}

.article-readmore:hover {
    color: var(--accent-purple);
    gap: 8px;
}

/* Article Template Styles (applied inside articles) */
.article-page {
    max-width: 800px;
    margin: 40px auto 80px auto;
    padding: 0 24px;
    background: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 30px;
    border: 1px solid var(--border-color);
    padding: 60px 40px;
}

.article-header {
    margin-bottom: 40px;
    text-align: center;
}

.article-header h1 {
    font-size: 2.5rem;
    line-height: 1.3;
    margin-bottom: 16px;
}

.article-content {
    font-size: 1.05rem;
    line-height: 1.8;
    color: #334155;
}

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

.article-content h2 {
    font-size: 1.75rem;
    margin: 40px 0 20px 0;
    border-bottom: 1px solid rgba(14, 165, 233, 0.15);
    padding-bottom: 8px;
    color: var(--text-primary);
}

.article-content h3 {
    font-size: 1.3rem;
    margin: 30px 0 15px 0;
    color: var(--text-primary);
}

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

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

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

.article-content a {
    color: var(--accent-blue);
    text-decoration: none;
    border-bottom: 1px dashed var(--accent-blue);
    transition: var(--transition-smooth);
}

.article-content a:hover {
    color: var(--accent-purple);
    border-bottom-color: var(--accent-purple);
}

.article-cta-box {
    background: linear-gradient(135deg, rgba(255,255,255,0.9), rgba(224,242,254,0.7));
    border: 1px solid rgba(2, 132, 199, 0.2);
    border-radius: 20px;
    padding: 32px;
    text-align: center;
    margin: 48px 0;
    box-shadow: 0 10px 30px -10px rgba(14, 165, 233, 0.15);
}

.article-cta-box h3 {
    margin-bottom: 12px;
    font-size: 1.4rem;
    color: var(--text-primary);
}

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

/* Related articles inside an article page */
.related-articles-section {
    border-top: 1px solid rgba(14, 165, 233, 0.15);
    padding-top: 40px;
    margin-top: 60px;
}

.related-title {
    font-size: 1.5rem;
    margin-bottom: 24px;
}

/* Footer styling */
footer {
    background: rgba(224, 242, 254, 0.9);
    border-top: 1px solid var(--border-color);
    padding: 60px 24px 30px 24px;
    position: relative;
    z-index: 1;
}

.footer-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand p {
    color: var(--text-secondary);
    margin-top: 16px;
    max-width: 320px;
    font-size: 0.9rem;
}

.footer-brand .logo {
    color: var(--text-primary);
}

.footer-links-col h4 {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: var(--text-primary);
}

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

.footer-links-col li {
    margin-bottom: 12px;
}

.footer-links-col a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition-smooth);
}

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

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    border-top: 1px solid rgba(14, 165, 233, 0.1);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

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

.footer-bottom-links a {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-smooth);
}

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

/* Mobile Responsive Adjustments */
@media (max-width: 992px) {
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content h1 {
        font-size: 2.8rem;
    }
    
    .hero-content p {
        margin: 0 auto 32px auto;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-visual {
        order: -1;
        margin-bottom: 40px;
    }
    
    .floating-hero-cloud {
        max-width: 280px;
    }
    
    .article-page {
        padding: 40px 20px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2.2rem;
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-actions .btn-cloud, 
    .hero-actions .btn-secondary {
        width: 100%;
        text-align: center;
    }
    
    .section-container {
        padding: 48px 16px;
    }
}