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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background: #2c3e50;
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: bold;
}

nav a {
    color: white;
    text-decoration: none;
    margin-left: 2rem;
    transition: opacity 0.3s;
}

nav a:hover {
    opacity: 0.8;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 4rem 0;
    text-align: center;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

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

.cta-button {
    display: inline-block;
    background: white;
    color: #667eea;
    padding: 0.8rem 2rem;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    transition: transform 0.3s;
}

.cta-button:hover {
    transform: translateY(-2px);
}

/* Features Section */
.features {
    padding: 4rem 0;
    background: #f8f9fa;
}

.features h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 3rem;
    color: #2c3e50;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

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

.feature-card h3 {
    color: #667eea;
    margin-bottom: 1rem;
}

/* Footer */
footer {
    background: #2c3e50;
    color: white;
    padding: 2rem 0;
    text-align: center;
}

footer .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: white;
    text-decoration: none;
    font-size: 0.9rem;
    transition: opacity 0.3s;
}

.footer-links a:hover {
    opacity: 0.8;
}

/* Contact Page */
.contact-section {
    padding: 4rem 0;
    min-height: 60vh;
}

.contact-section h1 {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 2rem;
}

.contact-info {
    max-width: 600px;
    margin: 0 auto;
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.contact-info p {
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.contact-info a {
    color: #667eea;
    text-decoration: none;
}

.contact-info a:hover {
    text-decoration: underline;
}

/* Policy Pages */
.policy-section {
    padding: 4rem 0;
    min-height: 60vh;
    background: #f8f9fa;
}

.policy-content {
    max-width: 900px;
    margin: 0 auto;
    background: white;
    padding: 3rem;
    border-radius: 12px;
    box-shadow: 0 2px 20px rgba(0,0,0,0.08);
}

.policy-section h1 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
    font-size: 2.5rem;
}

.effective-date {
    color: #6c757d;
    font-size: 0.95rem;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 2px solid #e9ecef;
}

.policy-intro {
    background: #f8f9fa;
    padding: 1.5rem;
    border-left: 4px solid #667eea;
    margin-bottom: 2rem;
    border-radius: 4px;
}

.policy-intro p {
    margin-bottom: 0;
    color: #495057;
}

.policy-section h2 {
    color: #2c3e50;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    font-size: 1.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #e9ecef;
}

.policy-section h3 {
    color: #667eea;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    font-size: 1.25rem;
}

.policy-section p {
    margin-bottom: 1rem;
    line-height: 1.8;
    color: #495057;
}

.policy-section ul {
    margin-left: 1.5rem;
    margin-bottom: 1.25rem;
    line-height: 1.8;
}

.policy-section li {
    margin-bottom: 0.75rem;
    color: #495057;
}

.policy-section a {
    color: #667eea;
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s;
}

.policy-section a:hover {
    border-bottom-color: #667eea;
}

/* Help Center */
.help-section {
    padding: 4rem 0;
    min-height: 60vh;
    background: #f8f9fa;
}

.help-header {
    text-align: center;
    margin-bottom: 3rem;
}

.help-header h1 {
    color: #2c3e50;
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
}

.help-header p {
    color: #6c757d;
    font-size: 1.1rem;
}

.help-notice {
    background: #e7f3ff;
    border: 1px solid #b3d9ff;
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.notice-content h3 {
    color: #2c3e50;
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.notice-content p {
    color: #495057;
    line-height: 1.6;
    margin: 0;
}

.platform-instructions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
}

.platform-box {
    background: #f8f9fa;
    padding: 1.25rem;
    border-radius: 8px;
    border: 1px solid #e9ecef;
}

.platform-box h4 {
    color: #667eea;
    font-size: 1rem;
    margin-bottom: 0.75rem;
}

.platform-box ol {
    margin-left: 1.25rem;
    line-height: 1.8;
}

.platform-box li {
    margin-bottom: 0.5rem;
    color: #495057;
}

.help-content {
    max-width: 900px;
    margin: 0 auto;
}

.help-category {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.08);
    margin-bottom: 2rem;
}

.help-category h2 {
    color: #2c3e50;
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid #e9ecef;
}

.faq-item {
    border-bottom: 1px solid #e9ecef;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 8px;
    transition: background 0.3s;
    margin-bottom: 0.5rem;
}

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

.faq-question h3 {
    color: #2c3e50;
    font-size: 1.1rem;
    margin: 0;
    flex: 1;
}

.faq-icon {
    font-size: 1.5rem;
    color: #667eea;
    font-weight: bold;
    margin-left: 1rem;
    transition: transform 0.3s;
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    padding: 0 1rem;
}

.faq-answer p {
    line-height: 1.8;
    color: #495057;
    margin-bottom: 1rem;
}

.faq-answer ul {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
    line-height: 1.8;
}

.faq-answer li {
    margin-bottom: 0.5rem;
    color: #495057;
}

.faq-answer a {
    color: #667eea;
    text-decoration: none;
}

.faq-answer a:hover {
    text-decoration: underline;
}

.help-cta {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 3rem;
    border-radius: 12px;
    text-align: center;
    margin-top: 3rem;
}

.help-cta h2 {
    color: white;
    font-size: 2rem;
    margin-bottom: 1rem;
}

.help-cta p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }

    nav a {
        margin-left: 1rem;
        font-size: 0.9rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .policy-content {
        padding: 2rem 1.5rem;
    }

    .policy-section h1 {
        font-size: 2rem;
    }

    .policy-section h2 {
        font-size: 1.5rem;
    }

    .help-category {
        padding: 1.5rem;
    }

    .help-header h1 {
        font-size: 2rem;
    }

    .help-cta {
        padding: 2rem 1.5rem;
    }
}