/* ============================================
   WebBuild Pro 响应式样式
   适配平板、手机、小屏手机
   ============================================ */

/* ============================================
   平板设备 max-width: 992px
   ============================================ */
@media screen and (max-width: 992px) {
    html {
        font-size: 15px;
    }

    .wb-section {
        padding: 60px 0;
    }

    .wb-section-title {
        font-size: 1.8rem;
    }

    /* Hero 区 */
    .wb-hero {
        padding: 70px 0 90px;
    }

    .wb-hero-inner {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .wb-hero-content {
        max-width: 100%;
        margin: 0 auto;
    }

    .wb-hero-title {
        font-size: 2.3rem;
    }

    .wb-hero-buttons {
        justify-content: center;
    }

    .wb-hero-stats {
        justify-content: center;
    }

    .wb-hero-image {
        max-width: 500px;
        margin: 0 auto;
    }

    /* 关于区 */
    .wb-about-grid {
        grid-template-columns: 1fr;
        gap: 35px;
    }

    .wb-about-image {
        max-width: 500px;
        margin: 0 auto;
    }

    /* 统计区 */
    .wb-stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    /* 页脚 */
    .wb-footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
    }

    .wb-footer-col:first-child {
        grid-column: 1 / -1;
    }

    /* 导航 */
    .wb-nav {
        display: none;
    }

    .wb-menu-toggle {
        display: inline-flex;
    }

    /* 移动端导航展开 */
    .wb-nav.active {
        display: block;
        position: fixed;
        top: 0;
        right: 0;
        width: 300px;
        max-width: 80vw;
        height: 100vh;
        background: #fff;
        padding: 80px 20px 30px;
        box-shadow: -5px 0 30px rgba(0, 0, 0, 0.15);
        overflow-y: auto;
        z-index: 999;
        animation: wbSlideIn 0.3s ease;
    }

    @keyframes wbSlideIn {
        from { transform: translateX(100%); }
        to { transform: translateX(0); }
    }

    .wb-nav.active ul {
        flex-direction: column;
        align-items: stretch;
        gap: 5px;
    }

    .wb-nav.active ul li a {
        padding: 14px 16px;
        font-size: 1rem;
        border-radius: 8px;
    }

    .wb-nav.active ul li ul {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        padding: 0 0 0 16px;
        margin-top: 5px;
    }

    .wb-header-phone {
        display: none;
    }

    .wb-header-cta .wb-btn {
        padding: 8px 16px;
        font-size: 0.85rem;
    }
}

/* ============================================
   手机设备 max-width: 768px
   ============================================ */
@media screen and (max-width: 768px) {
    html {
        font-size: 14px;
    }

    .wb-container {
        padding: 0 16px;
    }

    .wb-section {
        padding: 50px 0;
    }

    .wb-section-header {
        margin-bottom: 35px;
    }

    .wb-section-title {
        font-size: 1.6rem;
    }

    .wb-section-subtitle {
        font-size: 0.95rem;
    }

    /* 顶部栏 */
    .wb-topbar {
        font-size: 0.78rem;
        padding: 6px 0;
    }

    .wb-topbar-contact {
        gap: 12px;
    }

    .wb-topbar-social {
        gap: 8px;
    }

    .wb-topbar-social a {
        width: 24px;
        height: 24px;
        font-size: 0.85rem;
    }

    /* Hero 区 */
    .wb-hero {
        padding: 50px 0 70px;
    }

    .wb-hero-title {
        font-size: 1.9rem;
    }

    .wb-hero-desc {
        font-size: 1rem;
    }

    .wb-hero-stats {
        gap: 25px;
        margin-top: 35px;
        padding-top: 25px;
    }

    .wb-hero-stat-num {
        font-size: 1.6rem;
    }

    .wb-hero-buttons .wb-btn {
        width: 100%;
        justify-content: center;
    }

    /* 卡片网格 */
    .wb-services-grid,
    .wb-products-grid,
    .wb-pricing-grid,
    .wb-cases-grid,
    .wb-post-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .wb-pricing-card.featured {
        transform: none;
    }

    .wb-pricing-card.featured:hover {
        transform: translateY(-8px);
    }

    /* 关于区特性 */
    .wb-about-features {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    /* 统计区 */
    .wb-stats {
        padding: 45px 0;
    }

    .wb-stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 25px 15px;
    }

    .wb-stat-number {
        font-size: 2.1rem;
    }

    .wb-stat-icon {
        font-size: 1.6rem;
    }

    /* CTA 区 */
    .wb-cta {
        padding: 45px 0;
    }

    .wb-cta-inner {
        text-align: center;
        justify-content: center;
    }

    .wb-cta-text h2 {
        font-size: 1.5rem;
    }

    .wb-cta-inner .wb-btn {
        width: 100%;
    }

    /* FAQ */
    .wb-faq-question {
        padding: 16px 18px;
        font-size: 0.95rem;
    }

    .wb-faq-answer-inner {
        padding: 0 18px 16px;
        font-size: 0.9rem;
    }

    /* 表单 */
    .wb-form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    /* 页脚 */
    .wb-footer {
        padding-top: 50px;
    }

    .wb-footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
        padding-bottom: 35px;
    }

    .wb-footer-col:first-child {
        grid-column: auto;
    }

    .wb-footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: 8px;
        padding: 18px 0;
    }

    /* 回到顶部按钮 */
    .wb-scroll-top {
        bottom: 20px;
        right: 20px;
        width: 42px;
        height: 42px;
        font-size: 1rem;
    }

    /* 支付弹窗 */
    .wb-modal {
        padding: 25px 20px;
    }

    .wb-modal-title {
        font-size: 1.2rem;
    }

    .wb-payment-methods {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }

    .wb-payment-method {
        padding: 15px 10px;
    }

    .wb-payment-method i {
        font-size: 1.8rem;
    }

    /* 顶部栏隐藏邮箱节省空间 */
    .wb-topbar-contact a:last-child {
        display: none;
    }

    /* 外贸通区块 */
    .wb-wmt-features {
        padding: 80px 0;
    }

    .wb-wmt-features-header {
        margin-bottom: 50px;
    }

    .wb-wmt-features-title {
        font-size: 32px;
    }

    .wb-wmt-features-list {
        gap: 60px;
    }

    .wb-wmt-feature-item,
    .wb-wmt-feature-item.wb-wmt-feature-reverse {
        grid-template-columns: 1fr;
        gap: 40px;
        direction: ltr;
    }

    .wb-wmt-feature-num {
        font-size: 52px;
    }

    .wb-wmt-feature-title {
        font-size: 24px;
    }

    .wb-wmt-feature-summary {
        font-size: 15px;
    }

    .wb-wmt-feature-visual {
        min-height: 240px;
    }

    .wb-wmt-feature-ring {
        width: 200px;
        height: 200px;
    }

    .wb-wmt-feature-ring-2 {
        width: 260px;
        height: 260px;
    }

    .wb-wmt-feature-ring-3 {
        width: 320px;
        height: 320px;
    }

    .wb-wmt-feature-icon-wrap {
        width: 120px;
        height: 120px;
        font-size: 44px;
    }

    .wb-wmt-feature-stats {
        gap: 10px;
    }

    .wb-wmt-stat {
        min-width: 80px;
        padding: 14px 8px;
    }

    .wb-wmt-stat strong {
        font-size: 20px;
    }

    .wb-wmt-solutions-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .wb-wmt-tab-content.active {
        flex-direction: column;
    }

    .wb-wmt-data-highlight {
        flex: 1;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
    }

    .wb-wmt-data-item {
        flex: 1;
        min-width: 120px;
    }

    .wb-wmt-tech-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    /* 解决方案页面 */
    .wb-sol-banner {
        padding: 80px 0 60px;
    }

    .wb-sol-banner-title {
        font-size: 36px;
    }

    .wb-sol-banner-subtitle {
        font-size: 15px;
    }

    .wb-sol-banner-stats {
        gap: 30px;
    }

    .wb-sol-banner-stat strong {
        font-size: 26px;
    }

    .wb-sol-advantage-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .wb-sol-industry-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .wb-sol-testimonial-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

/* ============================================
   小屏手机 max-width: 480px
   ============================================ */
@media screen and (max-width: 480px) {
    html {
        font-size: 13px;
    }

    .wb-container {
        padding: 0 14px;
    }

    .wb-section {
        padding: 40px 0;
    }

    .wb-section-title {
        font-size: 1.4rem;
    }

    /* 顶部栏 */
    .wb-topbar-inner {
        justify-content: center;
        text-align: center;
    }

    .wb-topbar-social {
        display: none;
    }

    /* 头部 */
    .wb-header-inner {
        padding: 10px 0;
    }

    .wb-logo {
        font-size: 1.1rem;
    }

    .wb-logo img {
        max-height: 36px;
    }

    .wb-header-cta .wb-btn {
        padding: 7px 14px;
        font-size: 0.8rem;
    }

    .wb-header-cta .wb-btn i {
        display: none;
    }

    /* Hero 区 */
    .wb-hero {
        padding: 0px 0 60px;
    }

    .wb-hero-title {
        font-size: 1.6rem;
    }

    .wb-hero-desc {
        font-size: 0.95rem;
    }

    .wb-hero-badge {
        font-size: 0.78rem;
        padding: 5px 12px;
    }

    .wb-hero-stats {
        gap: 20px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .wb-hero-stat-num {
        font-size: 1.4rem;
    }

    /* 按钮 */
    .wb-btn {
        padding: 10px 22px;
        font-size: 0.9rem;
    }

    .wb-btn-lg {
        padding: 12px 28px;
        font-size: 0.95rem;
    }

    /* 卡片 */
    .wb-service-card,
    .wb-product-body,
    .wb-pricing-card {
        padding: 22px 18px;
    }

    .wb-service-icon {
        width: 50px;
        height: 50px;
        font-size: 1.3rem;
    }

    /* 产品 */
    .wb-product-footer {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }

    .wb-product-buy {
        width: 100%;
        justify-content: center;
        padding: 10px;
    }

    /* 统计 */
    .wb-stats-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .wb-stat-number {
        font-size: 2rem;
    }

    /* 案例标签 */
    .wb-case-body {
        padding: 16px;
    }

    /* 支付弹窗 */
    .wb-modal {
        padding: 20px 16px;
    }

    .wb-modal-overlay {
        padding: 12px;
    }

    .wb-payment-methods {
        grid-template-columns: 1fr;
    }

    .wb-qr-placeholder {
        padding: 20px;
    }

    /* 回到顶部 */
    .wb-scroll-top {
        bottom: 15px;
        right: 15px;
        width: 38px;
        height: 38px;
        font-size: 0.9rem;
    }

    /* 页脚社交 */
    .wb-footer-social a {
        width: 34px;
        height: 34px;
        font-size: 0.9rem;
    }

    .wb-wmt-features {
        padding: 60px 0;
    }

    .wb-wmt-features-title {
        font-size: 26px;
    }

    .wb-wmt-features-subtitle {
        font-size: 14px;
    }

    .wb-wmt-features-list {
        gap: 40px;
    }

    .wb-wmt-feature-num {
        font-size: 40px;
    }

    .wb-wmt-feature-title {
        font-size: 20px;
    }

    .wb-wmt-feature-details li {
        padding: 14px 16px;
        gap: 12px;
    }

    .wb-wmt-feature-dot {
        width: 34px;
        height: 34px;
        font-size: 14px;
    }

    .wb-wmt-feature-stats {
        flex-direction: column;
        gap: 10px;
    }

    .wb-wmt-stat {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 12px 16px;
        gap: 12px;
    }

    .wb-wmt-stat strong {
        margin-bottom: 0;
        font-size: 18px;
    }

    .wb-wmt-feature-ring {
        width: 140px;
        height: 140px;
    }

    .wb-wmt-feature-ring-2 {
        width: 180px;
        height: 180px;
    }

    .wb-wmt-feature-ring-3 {
        width: 220px;
        height: 220px;
    }

    .wb-wmt-feature-icon-wrap {
        width: 88px;
        height: 88px;
        font-size: 32px;
    }

    .wb-wmt-solutions-grid {
        grid-template-columns: 1fr;
    }

    .wb-wmt-solution-card {
        padding: 32px 22px 28px;
    }

    .wb-wmt-solution-num {
        font-size: 38px;
    }

    .wb-wmt-solution-icon {
        width: 60px;
        height: 60px;
        font-size: 26px;
    }

    .wb-wmt-solution-title {
        font-size: 18px;
    }

    .wb-wmt-tech-grid {
        grid-template-columns: 1fr;
    }

    .wb-wmt-tab-btn {
        padding: 10px 18px;
        font-size: 13px;
    }

    .wb-wmt-data-item .wb-wmt-data-num {
        font-size: 24px;
    }

    /* 解决方案页面 */
    .wb-sol-banner {
        padding: 60px 0 40px;
    }

    .wb-sol-banner-title {
        font-size: 28px;
    }

    .wb-sol-banner-subtitle {
        font-size: 14px;
    }

    .wb-sol-banner-stats {
        gap: 20px;
    }

    .wb-sol-banner-stat {
        flex: 1;
        min-width: 40%;
    }

    .wb-sol-banner-stat strong {
        font-size: 22px;
    }

    .wb-sol-advantage-grid {
        grid-template-columns: 1fr;
    }

    .wb-sol-industry-grid {
        grid-template-columns: 1fr;
    }

    .wb-sol-industry-card {
        padding: 28px 24px;
    }

    .wb-sol-testimonial-card {
        padding: 32px 24px 24px;
    }

    .wb-sol-testimonial-text {
        min-height: auto;
    }

    /* 移动端导航宽度 */
    .wb-nav.active {
        width: 100%;
        max-width: 100vw;
    }
}

/* ============================================
   超大屏幕优化 min-width: 1400px
   ============================================ */
@media screen and (min-width: 1400px) {
    .wb-container {
        max-width: 1320px;
    }

    .wb-hero-title {
        font-size: 3.3rem;
    }
}

/* ============================================
   打印样式
   ============================================ */
@media print {
    .wb-topbar,
    .wb-header,
    .wb-footer,
    .wb-scroll-top,
    .wb-modal-overlay,
    .wb-cta {
        display: none !important;
    }

    body {
        color: #000;
        background: #fff;
    }
}