/* WPS Office Landing Site - Original Design */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

/* Navigation */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: #4a90e2;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: #666;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    transition: all 0.3s ease;
}

.nav-links a:hover {
    color: #4a90e2;
    background: rgba(74, 144, 226, 0.1);
}

.nav-links a.active {
    color: white;
    background: #4a90e2;
}

/* Main Content */
.main-content {
    margin-top: 80px;
    min-height: calc(100vh - 80px);
}

/* Hero Section */
.hero {
    padding: 4rem 2rem;
    text-align: center;
    color: white;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    min-width: 160px;
    justify-content: center;
}

.btn-primary {
    background: linear-gradient(45deg, #ff6b6b, #ee5a24);
    color: white;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 107, 107, 0.6);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none !important;
}

/* Content Sections */
.section {
    padding: 4rem 2rem;
    background: white;
}

.section:nth-child(even) {
    background: #f8f9fa;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #333;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s ease;
}

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

.feature-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    color: #4a90e2;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #333;
}

.feature-card p {
    color: #666;
    line-height: 1.6;
}

/* Windows Featured Block */
.win-hero {
    background: linear-gradient(135deg, #1a237e 0%, #4a90e2 100%);
    border-radius: 20px;
    padding: 3rem;
    margin-bottom: 3rem;
    display: flex;
    align-items: center;
    gap: 3rem;
    color: white;
    box-shadow: 0 10px 40px rgba(26, 35, 126, 0.3);
    position: relative;
    overflow: hidden;
}

.win-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
}

.win-hero-icon {
    flex-shrink: 0;
    width: 100px;
    height: 100px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.win-hero-icon svg {
    width: 60px;
    height: 60px;
}

.win-hero-body {
    flex: 1;
}

.win-hero-body h2 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.win-hero-body .win-subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 1.5rem;
}

.win-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.win-tag {
    background: rgba(255, 255, 255, 0.15);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}

.win-tag svg {
    width: 14px;
    height: 14px;
}

.win-hero-action {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.win-hero-action .btn {
    font-size: 1.1rem;
    padding: 1rem 2.5rem;
}

.win-hero-action .win-size {
    font-size: 0.85rem;
    opacity: 0.7;
}

.win-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.win-detail-item {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 1.2rem;
    display: flex;
    align-items: flex-start;
    gap: 0.8rem;
}

.win-detail-item svg {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
    margin-top: 2px;
}

.win-detail-item strong {
    display: block;
    margin-bottom: 0.2rem;
}

.win-detail-item span {
    font-size: 0.9rem;
    opacity: 0.85;
    line-height: 1.4;
}

.other-platforms-title {
    text-align: center;
    font-size: 1.5rem;
    margin-bottom: 2rem;
    color: #666;
}

/* Download Cards */
.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.download-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.1);
    text-align: center;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.download-card.featured {
    border-color: #4a90e2;
    transform: scale(1.05);
}

.download-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.download-card.featured:hover {
    transform: scale(1.05) translateY(-5px);
}

.platform-icon {
    width: 50px;
    height: 50px;
    margin: 0 auto 1rem;
    color: #4a90e2;
}

.download-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: #333;
}

.download-card .version {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

/* FAQ Section */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    border-radius: 10px;
    margin-bottom: 1rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.faq-question {
    padding: 1.5rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #f8f9fa;
    border: none;
    width: 100%;
    text-align: left;
    font-size: 1.1rem;
    font-weight: 600;
    color: #333;
    transition: background 0.3s ease;
}

.faq-question:hover {
    background: #e9ecef;
}

.faq-chevron {
    width: 20px;
    height: 20px;
    transition: transform 0.3s ease;
    color: #4a90e2;
}

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

.faq-answer {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
    padding: 1.5rem;
    max-height: 500px;
}

.faq-answer p {
    color: #666;
    line-height: 1.6;
}

/* Comparison Table */
.comparison-table {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.1);
    margin: 2rem 0;
}

.comparison-table table {
    width: 100%;
    border-collapse: collapse;
}

.comparison-table th,
.comparison-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #eee;
}

.comparison-table th {
    background: #4a90e2;
    color: white;
    font-weight: 600;
}

.comparison-table tr:hover {
    background: #f8f9fa;
}

/* CTA Banner */
.cta-banner {
    background: linear-gradient(45deg, #4a90e2, #667eea);
    color: white;
    padding: 3rem 2rem;
    text-align: center;
    border-radius: 15px;
    margin: 3rem 0;
}

.cta-banner h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.cta-banner p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* Footer */
.footer {
    background: #2c3e50;
    color: white;
    padding: 2rem;
    text-align: center;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.security-notice {
    background: rgba(255, 255, 255, 0.1);
    padding: 1rem;
    border-radius: 10px;
    margin-bottom: 1rem;
    font-weight: 500;
}

.footer-text {
    opacity: 0.8;
    font-size: 0.9rem;
    line-height: 1.6;
}

/* Animations */
@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-container {
        padding: 0 1rem;
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-links {
        gap: 1rem;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .features-grid,
    .download-grid {
        grid-template-columns: 1fr;
    }
    
    .download-card.featured {
        transform: none;
    }
    
    .win-hero {
        flex-direction: column;
        padding: 2rem;
        text-align: center;
    }
    
    .win-hero-icon {
        width: 80px;
        height: 80px;
    }
    
    .win-hero-icon svg {
        width: 48px;
        height: 48px;
    }
    
    .win-hero-body h2 {
        font-size: 1.5rem;
    }
    
    .win-tags {
        justify-content: center;
    }
    
    .win-details {
        grid-template-columns: 1fr;
    }
    
    .comparison-table {
        overflow-x: auto;
    }
    
    .section {
        padding: 2rem 1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 2rem 1rem;
    }
    
    .btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .feature-card,
    .download-card {
        padding: 1.5rem;
    }
    
    .faq-question {
        padding: 1rem;
        font-size: 1rem;
    }
    
    .cta-banner {
        padding: 2rem 1rem;
    }
    
    .cta-banner h2 {
        font-size: 1.5rem;
    }
}