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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #1a202c 0%, #2d3748 100%);
    color: #FFFFFF;
    min-height: 100vh;
    padding: 20px;
    line-height: 1.6;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 40px 20px;
}

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

.logo {
    width: 165px;
    height: 60px;
    margin-bottom: 20px;
}

h1 {
    font-size: 2.5rem;
    font-weight: 300;
    margin-bottom: 10px;
    color: #3cbef2;
}

.subtitle {
    font-size: 1.1rem;
    opacity: 0.8;
    margin-bottom: 30px;
}

.main-nav {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.main-nav a {
    color: #3cbef2;
    text-decoration: none;
    padding: 10px 20px;
    border: 1px solid #3cbef2;
    border-radius: 25px;
    transition: all 0.3s ease;
}

.main-nav a:hover {
    background: #3cbef2;
    color: #FFFFFF;
}

.section {
    margin-bottom: 60px;
    scroll-margin-top: 20px;
}

.section h2 {
    font-size: 2rem;
    color: #3cbef2;
    margin-bottom: 20px;
    text-align: center;
}

.section-description {
    text-align: center;
    margin-bottom: 30px;
    opacity: 0.9;
}

.links-container {
    margin-bottom: 30px;
}

.link-card {
    background: rgba(48, 57, 72, 0.8);
    border: 1px solid #3cbef2;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    backdrop-filter: blur(10px);
    transition: transform 0.2s ease;
}

.link-card:hover {
    transform: translateY(-2px);
}

.link-icon {
    font-size: 24px;
    margin-right: 15px;
    color: #3cbef2;
}

.link-content {
    flex: 1;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
}

.link-url {
    word-break: break-all;
    font-family: monospace;
    font-size: 14px;
    color: #FFFFFF;
    flex: 1;
}

.copy-btn {
    background: #3cbef2;
    color: #FFFFFF;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 12px;
    transition: background 0.2s ease;
    white-space: nowrap;
}

.copy-btn:hover {
    background: #2aa0d0;
}

.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.info-card, .feature-card {
    background: rgba(48, 57, 72, 0.6);
    border-radius: 12px;
    padding: 25px;
    border: 1px solid rgba(60, 190, 242, 0.3);
}

.info-card h3, .feature-card h3 {
    color: #3cbef2;
    margin-bottom: 15px;
    font-weight: 400;
}

.info-card p, .feature-card p {
    margin-bottom: 8px;
    opacity: 0.9;
}

.guide-content {
    background: rgba(48, 57, 72, 0.6);
    border-radius: 12px;
    padding: 30px;
    border: 1px solid rgba(60, 190, 242, 0.3);
}

.guide-content h3 {
    color: #3cbef2;
    margin: 20px 0 15px 0;
}

.guide-content ol, .guide-content ul {
    margin-left: 20px;
    margin-bottom: 20px;
}

.guide-content li {
    margin-bottom: 8px;
    opacity: 0.9;
}

.faq-container {
    display: grid;
    gap: 20px;
}

.faq-item {
    background: rgba(48, 57, 72, 0.6);
    border-radius: 12px;
    padding: 25px;
    border: 1px solid rgba(60, 190, 242, 0.3);
}

.faq-item h3 {
    color: #3cbef2;
    margin-bottom: 15px;
}

footer {
    text-align: center;
    margin-top: 60px;
    padding-top: 30px;
    border-top: 1px solid rgba(60, 190, 242, 0.3);
}

.footer-content p {
    margin-bottom: 15px;
    opacity: 0.7;
}

.footer-note {
    font-size: 12px;
    margin-top: 20px;
}

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeIn 0.6s ease forwards;
}

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

@media (max-width: 768px) {
    .container {
        padding: 20px 15px;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    .main-nav {
        gap: 10px;
    }
    
    .main-nav a {
        padding: 8px 16px;
        font-size: 14px;
    }
    
    .link-content {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .copy-btn {
        align-self: flex-end;
    }
    
    .content-grid {
        grid-template-columns: 1fr;
    }
}