/* DNS技术专用样式 */
.tech-section {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(15px);
    border-radius: 15px;
    padding: 30px;
    margin: 30px 0;
    border: 1px solid rgba(255, 255, 255, 0.25);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.tech-header {
    display: flex;
    align-items: center;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--primary);
}

.tech-icon {
    font-size: 2.5rem;
    margin-right: 20px;
    color: var(--primary);
}

.protocol-card {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
    transition: transform 0.3s ease;
}

.protocol-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.3);
}

.protocol-name {
    font-size: 1.4rem;
    color: var(--secondary);
    margin-bottom: 10px;
}

.protocol-description {
    line-height: 1.7;
    margin-bottom: 15px;
}

.protocol-features {
    list-style-type: none;
    padding-left: 0;
}

.protocol-features li {
    margin-bottom: 8px;
    position: relative;
    padding-left: 25px;
}

.protocol-features li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: bold;
}

.access-info {
    background: rgba(255, 255, 255, 0.25);
    border-left: 4px solid var(--accent);
    padding: 20px;
    border-radius: 8px;
    margin: 30px 0;
    text-align: center;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin: 25px 0;
}

.comparison-table th,
.comparison-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.comparison-table th {
    background: rgba(67, 97, 238, 0.15);
    color: var(--secondary);
}

.comparison-table tr:hover {
    background: rgba(255, 255, 255, 0.1);
}

.benefit-card {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 12px;
    padding: 25px;
    margin: 15px 0;
    text-align: center;
    transition: all 0.3s ease;
}

.benefit-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.benefit-icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 15px;
}

.protocol-diagram {
    width: 100%;
    max-width: 600px;
    margin: 20px auto;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
}

.protocol-diagram img {
    max-width: 100%;
    border-radius: 8px;
}

.diagram-caption {
    margin-top: 15px;
    font-style: italic;
    color: #666;
}

@media (max-width: 768px) {
    .tech-section {
        padding: 20px 15px;
    }

    .tech-header {
        flex-direction: column;
        text-align: center;
    }

    .tech-icon {
        margin-right: 0;
        margin-bottom: 15px;
    }

    .comparison-table {
        display: block;
        overflow-x: auto;
    }
}