/* 响应式 - 浅奢通透风 */

/* 平板 */
@media (max-width: 1024px) {
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-5); }
    .cert-grid { grid-template-columns: repeat(2, 1fr); }
    .values-grid { grid-template-columns: repeat(2, 1fr); }
    .news-grid { grid-template-columns: repeat(2, 1fr); }
    .news-page-columns { grid-template-columns: 1fr; }
    .news-featured-grid {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
    }
    .news-featured-card--large {
        grid-row: span 1;
    }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-6); }
    .contact-grid { grid-template-columns: 1fr; }
    .about-story { grid-template-columns: 1fr; gap: var(--space-6); }
    .about-story-img { aspect-ratio: 16/9; }
    .brand-story { grid-template-columns: 1fr; gap: var(--space-8); }
    .brand-story-img { aspect-ratio: 16/9; }
    .brand-features { grid-template-columns: 1fr; }

    .process-timeline,
    .process-timeline--5 {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--space-4);
    }

    .industries-grid { grid-template-columns: repeat(2, 1fr); }
    .language-grid { grid-template-columns: repeat(4, 1fr); }

    .advantage-grid,
    .fallback-cards,
    .testimonials-grid,
    .cases-grid,
    .media-grid { grid-template-columns: repeat(2, 1fr); }
    .testimonials-marquee .testimonial-card { width: 340px; }
    .media-marquee .media-card { width: 300px; }

    .timeline::before { left: 20px; }
    .timeline-item {
        grid-template-columns: 1fr;
        padding-left: 60px;
    }
    .timeline-item::before { left: 20px; }
    .timeline-year { font-size: 36px; }
    .timeline-content.right { text-align: left; }
}

/* 手机 */
@media (max-width: 768px) {
    :root {
        --space-8: 60px;
        --space-10: 80px;
        --space-12: 100px;
        --space-16: 120px;
    }

    body { font-size: 16px; }

    .container { padding: 0 var(--space-4); }

    .header-cta { display: none; }
    .menu-toggle { display: flex; }

    .primary-nav {
        position: fixed;
        top: 70px; left: 0; right: 0;
        background: rgba(255, 255, 255, 0.98);
        border-bottom: 1px solid var(--border);
        flex-direction: column;
        padding: var(--space-5);
        gap: var(--space-3);
        transform: translateY(-150%);
        transition: transform 0.4s var(--ease);
        box-shadow: 0 10px 40px rgba(0,0,0,0.08);
    }
    .primary-nav.open { transform: translateY(0); }

    .hero {
        min-height: 90vh;
        padding-top: var(--space-10);
    }

    .hero-marquee span { font-size: 56px; }

    .hero-actions { flex-direction: column; }
    .hero-actions .btn { width: 100%; justify-content: center; }

    .services-grid { grid-template-columns: 1fr; }
    .service-card { padding: 0; }
    .service-content { padding: var(--space-5); }
    .service-title { font-size: 26px; }

    .stats-grid { grid-template-columns: 1fr 1fr; gap: var(--space-4); }
    .stat-item { padding-left: var(--space-3); }
    .stat-num { font-size: 52px; }

    .values-grid { grid-template-columns: 1fr; }
    .value-name { font-size: 28px; }

    .process-timeline,
    .process-timeline--5 {
        grid-template-columns: 1fr;
        gap: var(--space-5);
    }
    .process-timeline::before { display: none; }
    .process-step {
        text-align: left;
        display: grid;
        grid-template-columns: 64px 1fr;
        gap: var(--space-4);
        align-items: center;
    }
    .process-step-icon {
        display: none;
    }
    .process-step-num {
        width: 64px;
        height: 64px;
        font-size: 20px;
        margin-bottom: 0;
    }

    .industries-grid { grid-template-columns: 1fr; }
    .language-grid { grid-template-columns: repeat(2, 1fr); }

    .clients-track { gap: var(--space-6); }
    .client-logo { height: 50px; max-width: 140px; }

    .news-grid { grid-template-columns: 1fr; }
    .news-column { padding: var(--space-4); }

    .news-column-thumb {
        width: 60px;
        height: 45px;
    }
    .news-column-title-link {
        font-size: 16px;
    }

    .news-card {
        grid-template-columns: 1fr;
        gap: var(--space-3);
        padding: var(--space-4);
    }
    .news-thumb { aspect-ratio: 16/9; }
    .news-title { font-size: 22px; }
    .news-featured-card,
    .news-featured-card--large {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
        padding: 0;
    }
    .news-featured-card--large .news-featured-content,
    .news-featured-content {
        padding: var(--space-4);
    }
    .news-featured-title,
    .news-featured-card--large .news-featured-title {
        font-size: 20px;
    }
    .news-detail-title { font-size: 32px; }

    .cert-grid { grid-template-columns: 1fr 1fr; }
    .cert-item-cert { font-size: 32px; }

    .related-list { grid-template-columns: 1fr; }

    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; align-items: flex-start; gap: var(--space-3); }

    .form-row { grid-template-columns: 1fr; }
    .contact-form { padding: var(--space-5); }
    .contact-extra-grid { grid-template-columns: 1fr; }
    .qr-card { max-width: 320px; margin: 0 auto; }

    .article-wrap { padding: var(--space-6) 0 var(--space-10); }
    .article-body { font-size: 17px; line-height: 1.8; }
    .article-body h2 { font-size: 28px; }
    .article-body h3 { font-size: 22px; }

    .page-header { padding: calc(var(--space-10) + var(--space-5)) 0 var(--space-8); }

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

    .advantage-grid,
    .fallback-cards,
    .testimonials-grid,
    .cases-grid,
    .media-grid { grid-template-columns: 1fr; }
    .testimonials-marquee .testimonial-card { width: 300px; padding: var(--space-5); }
    .testimonials-marquee .testimonial-quote { font-size: 56px; }
    .media-marquee .media-card { width: 280px; }
    .honor-item { height: 70px; padding: 0 var(--space-4); }
    .honor-item img { max-height: 50px; max-width: 140px; }
    .honor-text { font-size: 18px; }
}

/* 小屏 */
@media (max-width: 480px) {
    .hero-title { font-size: 44px; }
    .hero-title-cn { font-size: 28px; }
    .section-title { font-size: 34px; }
    .cta-title { font-size: 44px; }
    .stat-num { font-size: 44px; }
    .brand-cn, .brand-divider { display: none; }
    .page-header-title { font-size: 40px; }

    .btn {
        padding: 16px 28px;
        font-size: 13px;
    }

    .service-title { font-size: 24px; }
    .value-name { font-size: 26px; }
    .news-column-title { font-size: 22px; }

    .process-step {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .process-step-num { margin: 0 auto; }
}