/* 响应式设计 */

@media (max-width: 1024px) {
    .container {
        padding: 0 15px;
    }

    .section-title {
        font-size: 2rem;
    }

    .products-grid,
    .advantages-grid,
    .applications-grid {
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    /* 通用调整 */
    .container {
        padding: 0 15px;
    }

    .section-title {
        font-size: 1.8rem;
        margin-bottom: 2rem;
    }

    /* 导航栏调整 */
    .logo {
        font-size: 1.2rem;
    }

    nav {
        gap: 1.5rem;
    }

    /* 英雄部分调整 */
    .hero {
        padding: 3rem 20px;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

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

    /* 网格调整 */
    .products-grid,
    .advantages-grid,
    .applications-grid,
    .about-highlights {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .trust-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    /* 卡片调整 */
    .product-card,
    .advantage-item,
    .application-card {
        padding: 1.5rem;
    }

    /* 按钮调整 */
    .cta-button {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }

    /* 部分间距调整 */
    .products-section,
    .advantages-section,
    .applications-section,
    .about-section {
        padding: 3rem 20px;
    }

    .contact-section {
        padding: 3rem 20px;
    }

    .hero {
        padding: 3rem 20px;
    }

    /* 联系表单 */
    .contact-form-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    /* 标题调整 */
    .section-title {
        font-size: 1.5rem;
        margin-bottom: 1.5rem;
    }

    /* 英雄部分 */
    .hero h1 {
        font-size: 1.5rem;
    }

    .hero-subtitle {
        font-size: 0.95rem;
    }

    /* 导航栏 */
    .logo {
        font-size: 1rem;
    }

    .logo-cn {
        display: none;
    }

    nav {
        gap: 1rem;
        padding: 0.5rem 0;
    }

    nav a {
        font-size: 0.9rem;
        padding: 0.6rem 1rem;
    }

    /* 卡片调整 */
    .product-card,
    .advantage-item,
    .application-card {
        padding: 1rem;
    }

    .product-card h3 {
        font-size: 1.1rem;
    }

    .advantage-item h3,
    .application-card h3 {
        font-size: 1rem;
    }

    /* 网格调整 */
    .trust-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .hero-features {
        grid-template-columns: 1fr;
        gap: 0.8rem;
    }

    .hero-feature {
        padding: 1rem;
    }

    /* 文本大小 */
    .hero-feature-icon {
        font-size: 1.5rem;
    }

    .application-icon {
        font-size: 2rem;
    }

    .advantage-icon {
        font-size: 2rem;
    }

    /* 按钮 */
    .cta-button {
        padding: 0.7rem 1.2rem;
        font-size: 0.85rem;
        margin: 0.3rem;
    }

    /* 间距 */
    .products-section,
    .advantages-section,
    .applications-section,
    .about-section,
    .contact-section,
    .hero {
        padding: 2rem 20px;
    }

    .hero-features {
        margin-top: 1.5rem;
    }

    /* 页脚 */
    footer {
        font-size: 0.8rem;
        padding: 1.5rem;
    }

    .footer-links {
        gap: 0.8rem;
        margin-bottom: 1rem;
    }

    /* 信任部分 */
    .trust-section {
        padding: 2rem 20px;
    }

    .trust-item .number {
        font-size: 1.8rem;
    }

    .trust-item {
        font-size: 0.85rem;
    }
}

/* 横屏模式调整（平板/手机横屏） */
@media (max-width: 768px) and (orientation: landscape) {
    .hero {
        padding: 2rem 20px;
    }

    .hero h1 {
        font-size: 1.8rem;
        margin-bottom: 0.5rem;
    }

    .hero-subtitle {
        font-size: 0.95rem;
        margin-bottom: 1rem;
    }

    .hero-features {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
        margin-top: 1rem;
    }

    nav {
        gap: 1.5rem;
    }
}

/* 打印样式 */
@media print {
    header,
    footer,
    .cta-button {
        display: none;
    }

    body {
        background: white;
        color: black;
    }

    .product-card,
    .advantage-item,
    .application-card {
        page-break-inside: avoid;
    }
}