/* ==========================================================================
   响应式样式
   ========================================================================== */

/* 平板设备 */
.qr-image {
    width: 150px;
    height: 150px;
    border-radius: 10px;
    object-fit: cover;
}

@media (max-width: 768px) {
    /* 导航栏响应式 */
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: rgba(10, 10, 10, 0.98);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        backdrop-filter: blur(10px);
        padding: 2rem 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: 1rem 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    /* 英雄区域响应式 */
    .hero-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-features {
        justify-content: center;
    }
    
    /* AI圆圈响应式 */
    .ai-circle {
        width: 200px;
        height: 200px;
    }
    
    .circle-inner {
        width: 100px;
        height: 100px;
    }
    
    .ai-icon {
        font-size: 2rem;
    }
    
    .orbit-1 {
        width: 130px;
        height: 130px;
    }
    
    .orbit-2 {
        width: 160px;
        height: 160px;
    }
    
    .orbit-3 {
        width: 200px;
        height: 200px;
    }
    
    /* 标题响应式 */
    .section-title {
        font-size: 2rem;
    }
    
    .page-title {
        font-size: 2.5rem;
    }
    
    /* 网格响应式 */
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .scenarios-grid {
        grid-template-columns: 1fr;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .overview-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .overview-features {
        flex-direction: column;
        gap: 1rem;
    }
    
    .features-detailed {
        grid-template-columns: 1fr;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    /* 价格响应式 */
    .price {
        font-size: 2.5rem;
    }
    
    /* CTA响应式 */
    .cta-content h2 {
        font-size: 2rem;
    }
    
    /* 底部响应式 */
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .features-highlights-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 0 1rem;
    }
    
    .feature-highlight {
        padding: 1.8rem;
        min-height: 280px;
    }
    
    .feature-icon-wrapper {
        width: 60px;
        height: 60px;
    }
    
    .feature-icon-wrapper::before {
        width: 75px;
        height: 75px;
    }
    
    .feature-icon-emoji {
        font-size: 1.8rem;
    }
    
    .feature-highlight h3 {
        font-size: 1.2rem;
    }
    
    .feature-highlight p {
        font-size: 0.9rem;
    }
    
    .feature-details li {
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .core-features-highlights {
        padding: 60px 0;
    }
    
    .features-highlights-grid {
        gap: 1rem;
        padding: 0 0.5rem;
    }
    
    .feature-highlight {
        padding: 1.5rem;
        min-height: 260px;
    }
    
    .feature-icon-wrapper {
        width: 50px;
        height: 50px;
    }
    
    .feature-icon-wrapper::before {
        width: 65px;
        height: 65px;
    }
    
    .feature-icon-emoji {
        font-size: 1.5rem;
    }
    
    .feature-highlight h3 {
        font-size: 1.1rem;
        margin-bottom: 0.8rem;
    }
    
    .feature-highlight p {
        font-size: 0.85rem;
        margin-bottom: 1.2rem;
    }
}

/* 手机设备 */
@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .page-title {
        font-size: 2rem;
    }
    
    .feature-card,
    .scenario-card {
        padding: 1.5rem;
    }
    
    .cta-content h2 {
        font-size: 1.8rem;
    }
    
    .container {
        padding: 0 15px;
    }
}