/* CSS Variables - Yunpian Style */
:root {
    /* Colors - Yunpian Style */
    --primary-blue: #3B82F6;
    --primary-blue-dark: #1E40AF;
    --primary-blue-light: #60A5FA;
    --hero-bg-start: #1E3A8A;
    --hero-bg-end: #3B82F6;
    --white: #FFFFFF;
    --gray-50: #F8FAFC;
    --gray-100: #F1F5F9;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --gray-400: #94A3B8;
    --gray-500: #64748B;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1E293B;
    --gray-900: #0F172A;
    
    /* Accent Colors */
    --orange: #F97316;
    --green: #10B981;
    --purple: #8B5CF6;
    --red: #EF4444;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 2.5rem;
    --spacing-3xl: 3rem;
    --spacing-4xl: 4rem;
    --spacing-5xl: 5rem;
    --spacing-6xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--gray-900);
    background-color: var(--white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Language Switcher */
.language-switcher {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1001;
    display: flex;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-full);
    padding: 4px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-200);
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    border: none;
    background: transparent;
    border-radius: var(--radius-full);
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--gray-600);
    transition: all var(--transition-normal);
}

.lang-btn:hover {
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary-blue);
}

.lang-btn.active {
    background: var(--primary-blue);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.flag-icon {
    width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(30, 58, 138, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--white);
    text-decoration: none;
}

.nav-logo i {
    color: var(--primary-blue-light);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-normal);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-blue-light);
    transition: width var(--transition-normal);
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.nav-btn {
    padding: 10px 20px;
    border-radius: var(--radius-md);
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition-normal);
    font-size: var(--font-size-sm);
}

.nav-btn-outline {
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.3);
    background: transparent;
}

.nav-btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

.nav-btn-primary {
    background: var(--primary-blue);
    color: var(--white);
    border: 1px solid var(--primary-blue);
}

.nav-btn-primary:hover {
    background: var(--primary-blue-dark);
    border-color: var(--primary-blue-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    position: relative;
    overflow: hidden;
    padding-top: 70px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--hero-bg-start) 0%, var(--hero-bg-end) 100%);
    z-index: 1;
}

.hero-curves {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    z-index: 2;
}

.hero-curves::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E") repeat;
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    position: relative;
    z-index: 3;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-5xl);
    align-items: center;
    margin-bottom: var(--spacing-5xl);
}

.hero-text {
    color: var(--white);
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-lg);
}

.hero-announcement {
    display: flex;
    justify-content: center;
}

.announcement-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    border: 1px solid rgba(255, 255, 255, 0.2);
    max-width: 500px;
    text-align: center;
}

.announcement-badge {
    display: inline-block;
    background: var(--orange);
    color: var(--white);
    padding: 6px 16px;
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.announcement-card p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.announcement-link {
    color: var(--primary-blue-light);
    text-decoration: none;
    font-weight: 600;
    border-bottom: 1px solid var(--primary-blue-light);
    transition: all var(--transition-normal);
}

.announcement-link:hover {
    color: var(--white);
    border-bottom-color: var(--white);
}

/* Partnership Banner */
.partnership-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-5xl);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.partnership-text {
    flex: 1;
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--font-size-lg);
    line-height: 1.6;
}

.partnership-logos {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-left: var(--spacing-xl);
}

.logo-item {
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    min-width: 100px;
    text-align: center;
}

.logo-placeholder {
    color: var(--white);
    font-weight: 700;
    font-size: var(--font-size-lg);
}

.logo-separator {
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--font-size-2xl);
    font-weight: 300;
}

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--spacing-lg);
}

.service-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all var(--transition-normal);
    color: var(--white);
}

.service-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: var(--shadow-xl);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-blue-light);
    color: var(--white);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    margin: 0 auto var(--spacing-lg);
}

.service-card h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.service-card p {
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--font-size-sm);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-normal);
    border: none;
    cursor: pointer;
    font-size: var(--font-size-base);
}

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

.btn-primary:hover {
    background: var(--primary-blue-dark);
    border-color: var(--primary-blue-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-white:hover {
    background: var(--gray-100);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Sections */
.section {
    padding: var(--spacing-6xl) 0;
}

.section-white {
    background: var(--white);
}

.section-gray {
    background: var(--gray-50);
}

.section-primary {
    background: var(--primary-blue);
    color: var(--white);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-5xl);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    line-height: 1.2;
    color: var(--gray-900);
}

.section-primary .section-title {
    color: var(--white);
}

/* Growth Section */
.growth-content {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--spacing-5xl);
}

.growth-nav {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.growth-nav-item {
    padding: var(--spacing-lg) var(--spacing-xl);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-full);
    background: var(--white);
    color: var(--gray-600);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-align: left;
}

.growth-nav-item:hover {
    border-color: var(--primary-blue);
    color: var(--primary-blue);
}

.growth-nav-item.active {
    background: var(--primary-blue);
    border-color: var(--primary-blue);
    color: var(--white);
}

.growth-main {
    position: relative;
}

.growth-panel {
    display: none;
    animation: fadeIn 0.5s ease-in-out;
}

.growth-panel.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.growth-panel h3 {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--gray-900);
}

.growth-panel p {
    color: var(--gray-600);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.growth-panel ul {
    list-style: none;
    margin-bottom: var(--spacing-xl);
}

.growth-panel ul li {
    color: var(--gray-600);
    margin-bottom: var(--spacing-sm);
    padding-left: var(--spacing-lg);
    position: relative;
}

.growth-panel ul li::before {
    content: '•';
    color: var(--primary-blue);
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* Activation Timeline */
.activation-timeline {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.timeline-item {
    text-align: center;
    flex: 1;
}

.timeline-circle {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--gray-200);
    color: var(--gray-600);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    margin: 0 auto var(--spacing-md);
    transition: all var(--transition-normal);
}

.timeline-circle.active {
    background: var(--primary-blue);
    color: var(--white);
}

.timeline-content {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.feature-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-200);
    transition: all var(--transition-normal);
}

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

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-blue);
    color: var(--white);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-lg);
}

.feature-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--gray-900);
}

.feature-card ul {
    list-style: none;
}

.feature-card ul li {
    color: var(--gray-600);
    margin-bottom: var(--spacing-sm);
    padding-left: var(--spacing-lg);
    position: relative;
    line-height: 1.6;
}

.feature-card ul li::before {
    content: '✓';
    color: var(--primary-blue);
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* API Tabs */
.api-tabs {
    max-width: 1000px;
    margin: 0 auto;
}

.tab-nav {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-3xl);
}

.tab-btn {
    padding: var(--spacing-md) var(--spacing-xl);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-full);
    background: var(--white);
    color: var(--gray-600);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.tab-btn:hover {
    border-color: var(--primary-blue);
    color: var(--primary-blue);
}

.tab-btn.active {
    background: var(--primary-blue);
    border-color: var(--primary-blue);
    color: var(--white);
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
    animation: fadeIn 0.5s ease-in-out;
}

.api-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-5xl);
    align-items: center;
}

.api-text h3 {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--gray-900);
}

.api-text p {
    color: var(--gray-600);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.api-text ul {
    list-style: none;
    margin-bottom: var(--spacing-xl);
}

.api-text ul li {
    color: var(--gray-600);
    margin-bottom: var(--spacing-sm);
    padding-left: var(--spacing-lg);
    position: relative;
    line-height: 1.6;
}

.api-text ul li::before {
    content: '•';
    color: var(--primary-blue);
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* Code Block */
.code-block {
    background: var(--gray-900);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.code-header {
    background: var(--gray-800);
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--white);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.code-content {
    padding: var(--spacing-lg);
}

.code-content pre {
    margin: 0;
    color: var(--gray-300);
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: var(--font-size-sm);
    line-height: 1.6;
    overflow-x: auto;
}

/* Security Badges */
.security-badges {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.badge-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    background: var(--gray-100);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
}

.badge-item i {
    color: var(--primary-blue);
    font-size: var(--font-size-xl);
}

.badge-item span {
    font-weight: 600;
    color: var(--gray-900);
}

/* Service Stats */
.service-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.stat-item {
    text-align: center;
    background: var(--gray-100);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
}

.stat-number {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
}

/* CTA Section */
.cta-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.cta-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-2xl);
    color: var(--white);
}

.cta-actions {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    flex-wrap: wrap;
}

/* Footer */
.footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: var(--spacing-5xl) 0 var(--spacing-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-3xl);
}

.footer-section h4 {
    color: var(--white);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-section ul li a {
    color: var(--gray-400);
    text-decoration: none;
    transition: color var(--transition-normal);
}

.footer-section ul li a:hover {
    color: var(--white);
}

.contact-info p {
    color: var(--gray-400);
    margin-bottom: var(--spacing-sm);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--gray-700);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--white);
}

.footer-logo i {
    color: var(--primary-blue-light);
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-links a {
    color: var(--gray-400);
    text-decoration: none;
    transition: color var(--transition-normal);
}

.footer-links a:hover {
    color: var(--white);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .partnership-banner {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-lg);
    }
    
    .partnership-logos {
        margin-left: 0;
    }
}

@media (max-width: 768px) {
    .nav-container {
        padding: 0 var(--spacing-md);
    }
    
    .nav-menu {
        display: none;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-3xl);
        text-align: center;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .growth-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-3xl);
    }
    
    .growth-nav {
        flex-direction: row;
        overflow-x: auto;
    }
    
    .growth-nav-item {
        white-space: nowrap;
    }
    
    .api-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-3xl);
        text-align: center;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        text-align: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-lg);
        text-align: center;
    }
    
    .language-switcher {
        top: 10px;
        right: 10px;
    }
    
    .activation-timeline {
        flex-direction: column;
        gap: var(--spacing-lg);
    }
    
    .service-stats {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .hero-container {
        padding: 0 var(--spacing-md);
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .tab-nav {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: var(--font-size-sm);
    }
    
    .partnership-logos {
        flex-direction: column;
        gap: var(--spacing-md);
    }
}