/* ========== 响应式样式 ========== */

/* 大屏笔记本 */
@media (max-width: 1200px) {
    .container {
        padding: 0 25px;
    }
    .main-nav > ul > li > a {
        padding: 10px 10px;
        font-size: 13px;
    }
}

/* 平板 */
@media (max-width: 992px) {
    .main-nav {
        display: none;
    }
    .mobile-menu-toggle {
        display: flex;
    }
    .intro-content {
        grid-template-columns: 1fr;
    }
    .intro-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .join-models {
        grid-template-columns: 1fr;
    }
    .join-card.featured {
        transform: none;
    }
    .join-card.featured:hover {
        transform: translateY(-5px);
    }
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .news-grid {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    .heroSwiper {
        height: 450px;
    }
    .slide-content h1 {
        font-size: 36px;
    }
    .slide-content p {
        font-size: 16px;
    }
    .page-banner {
        height: 220px;
    }
    .page-banner h1 {
        font-size: 30px;
    }
    .about-intro-grid {
        grid-template-columns: 1fr;
    }
    .industry-card {
        grid-template-columns: 1fr;
    }
    .industry-card.reverse {
        direction: ltr;
    }
    .ecology-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .profit-model {
        grid-template-columns: repeat(3, 1fr);
    }
    .profit-step::after {
        display: none;
    }
    .mode-cards {
        grid-template-columns: 1fr;
    }
    .policy-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .academy-grid {
        grid-template-columns: 1fr;
    }
    .cert-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .download-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .contact-grid {
        grid-template-columns: 1fr;
    }
    .project-brands {
        grid-template-columns: 1fr;
    }
    .form-row {
        grid-template-columns: 1fr;
    }
}

/* 手机 */
@media (max-width: 768px) {
    .top-bar {
        display: none;
    }
    .main-header .container {
        height: 60px;
    }
    .logo img {
        height: 35px;
    }
    .heroSwiper {
        height: 380px;
    }
    .slide-content h1 {
        font-size: 28px;
        letter-spacing: 2px;
    }
    .slide-content p {
        font-size: 14px;
    }
    .slide-btns {
        flex-direction: column;
        align-items: center;
    }
    .btn-lg {
        padding: 12px 30px;
        font-size: 14px;
    }
    .section-title {
        font-size: 26px;
    }
    .section-header {
        margin-bottom: 35px;
    }
    .intro-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    .stat-number {
        font-size: 24px;
    }
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    .cases-grid {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .miniapp-grid {
        gap: 15px;
    }
    .miniapp-item {
        padding: 15px;
    }
    .miniapp-icon {
        width: 45px;
        height: 45px;
        font-size: 18px;
    }
    .miniapp-item span {
        font-size: 11px;
    }
    .floating-service {
        right: 10px;
        bottom: 80px;
    }
    .float-item {
        width: 42px;
        height: 42px;
    }
    .float-item i {
        font-size: 16px;
    }
    .float-item span {
        display: none;
    }
    .page-banner {
        height: 180px;
    }
    .page-banner h1 {
        font-size: 24px;
    }
    .page-section {
        padding: 40px 0;
    }
    .timeline::before {
        left: 20px;
    }
    .timeline-item,
    .timeline-item:nth-child(even) {
        flex-direction: row;
    }
    .timeline-year {
        width: 60px;
        font-size: 16px;
    }
    .timeline-dot {
        left: 20px;
    }
    .timeline-content {
        width: calc(100% - 90px);
        margin: 0 0 0 40px;
    }
    .ecology-grid {
        grid-template-columns: 1fr;
    }
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    .feature-item {
        padding: 15px 10px;
    }
    .feature-item i {
        font-size: 22px;
    }
    .feature-item h4 {
        font-size: 12px;
    }
    .profit-model {
        grid-template-columns: 1fr;
    }
    .policy-grid {
        grid-template-columns: 1fr;
    }
    .process-flow {
        flex-direction: column;
        align-items: center;
    }
    .process-arrow {
        transform: rotate(90deg);
    }
    .cert-grid {
        grid-template-columns: 1fr;
    }
    .download-grid {
        grid-template-columns: 1fr;
    }
    .join-form-container {
        padding: 25px;
    }
    .news-list-item {
        flex-direction: column;
        gap: 10px;
    }
    .news-list-date {
        display: flex;
        gap: 5px;
        align-items: baseline;
    }
    .news-list-date .day {
        font-size: 20px;
    }
    .course-table {
        font-size: 12px;
    }
    .course-table th,
    .course-table td {
        padding: 10px;
    }
    .academy-card {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
}

/* 小屏手机 */
@media (max-width: 480px) {
    .heroSwiper {
        height: 320px;
    }
    .slide-content h1 {
        font-size: 22px;
    }
    .slide-content p {
        font-size: 13px;
    }
    .intro-stats {
        grid-template-columns: 1fr 1fr;
    }
    .features-grid {
        grid-template-columns: 1fr;
    }
    .miniapp-grid {
        gap: 8px;
    }
    .miniapp-item {
        padding: 10px 8px;
    }
    .section-title {
        font-size: 22px;
    }
}