@charset "utf-8";

/* ===== 手机端专用导航栏（独立于 header 之外，强制显示） ===== */
@media (max-width: 768px) {
    /* ----- 隐藏顶部横幅 ----- */
    .top-banner-wrap {
        display: none !important;
    }

    /* ----- 强制显示手机导航栏 ----- */
    #mobile-faq-nav {
        position: fixed !important;
        top: 90px !important;           /* 从 70px 改为 90px */
        left: 0 !important;
        right: 0 !important;
        z-index: 9999999 !important;
        background: #ffffff !important;
        padding: 6px 10px !important;
        border-bottom: 3px solid #0d6efd !important;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12) !important;
        display: flex !important;
        flex-wrap: wrap !important;
        gap: 4px !important;
        min-height: 44px !important;
        align-items: center !important;
    }

    .m-nav-link {
        display: inline-block !important;
        padding: 4px 12px !important;
        font-size: 13px !important;
        border-radius: 4px !important;
        background: #f0f2f5 !important;
        color: #333 !important;
        font-weight: 500 !important;
        text-decoration: none !important;
        white-space: nowrap !important;
        border: none !important;
    }

    .m-nav-link.active {
        background: #0d6efd !important;
        color: #fff !important;
    }

    /* ----- 彻底隐藏原有左侧导航，不留空白 ----- */
    .problem-left,
    .faq-container .problem-left {
        display: none !important;
        visibility: hidden !important;
        height: 0 !important;
        width: 0 !important;
        overflow: hidden !important;
        position: absolute !important;
        top: -9999px !important;
        left: -9999px !important;
    }

    /* ----- 调整页面整体布局，消除顶部空白 ----- */
    .faq-container {
        display: flex !important;
        flex-direction: column !important;
        padding: 0 8px !important;
        gap: 10px !important;
        margin-top: 0 !important;
    }

    body {
        padding-top: 160px !important;
    }

    .problem-right-wrap {
        max-height: none !important;
        padding-right: 0 !important;
        margin-top: 0 !important;
    }

    /* ----- 锚点偏移量：点击导航后标题不被遮挡 ----- */
    .anchor-offset {
        scroll-margin-top: 165px !important;
    }

    /* ----- 卡片样式 ----- */
    .card {
        border-radius: 8px !important;
        margin-bottom: 12px !important;
    }

    .card-header {
        padding: 10px 14px !important;
        border-radius: 8px 8px 0 0 !important;
    }

    .card-header h2 {
        font-size: 17px !important;
    }

    .card-header p {
        font-size: 13px !important;
    }

    .card-body {
        padding: 6px 10px 10px !important;
    }

    /* ----- 表格样式 ----- */
    .faq-table {
        font-size: 13px !important;
        border-radius: 6px !important;
    }

    .faq-table th,
    .faq-table td {
        padding: 6px 8px !important;
        font-size: 13px !important;
    }

    .badge-tag {
        font-size: 11px !important;
        padding: 1px 6px !important;
    }

    /* ----- 流程卡片：一行两个 ----- */
    .process-cards-container {
        display: grid !important;
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 8px !important;
        margin: 0 !important;
    }

    .process-cards-container .col-md-3 {
        flex: 0 0 auto !important;
        max-width: 100% !important;
        padding: 0 !important;
        margin-top: 0 !important;
        width: 100% !important;
    }

    .process-card {
        border-radius: 6px !important;
        border: 1px solid #eef2f8 !important;
    }

    .process-card .card-body {
        padding: 12px 8px !important;
        min-height: 100px !important;
    }

    .process-img {
        max-height: 36px !important;
        margin-bottom: 6px !important;
    }

    .process-card-title {
        font-size: 13px !important;
        padding: 4px 0 !important;
        margin-bottom: 4px !important;
    }

    .process-card .card-body p {
        font-size: 11px !important;
        margin-bottom: 1px !important;
    }

    /* ----- 顶部标题 ----- */
    .problem-right .card.text-center .card-body {
        padding: 10px 10px !important;
    }

    .problem-right .card.text-center h1 {
        font-size: 1.2rem !important;
    }

    .problem-right .card.text-center p {
        font-size: 13px !important;
    }
}

/* ===== 极小屏手机（≤480px） ===== */
@media (max-width: 480px) {
    #mobile-faq-nav {
        top: 60px !important;
        padding: 4px 6px !important;
        min-height: 38px !important;
        gap: 3px !important;
    }

    .m-nav-link {
        font-size: 12px !important;
        padding: 3px 8px !important;
    }

    body {
        padding-top: 105px !important;
    }

    .anchor-offset {
        scroll-margin-top: 110px !important;
    }

    .card-header h2 {
        font-size: 15px !important;
    }

    .faq-table {
        font-size: 12px !important;
    }

    .faq-table th,
    .faq-table td {
        padding: 4px 6px !important;
        font-size: 12px !important;
    }

    .process-cards-container {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 6px !important;
    }

    .process-card .card-body {
        padding: 10px 6px !important;
        min-height: 80px !important;
    }

    .process-img {
        max-height: 30px !important;
    }

    .process-card-title {
        font-size: 12px !important;
    }

    .process-card .card-body p {
        font-size: 10px !important;
    }
}

/* ===== 电脑端和平板端：隐藏手机导航栏 ===== */
@media (min-width: 769px) {
    #mobile-faq-nav {
        display: none !important;
    }
}

/* ===== 平板端微调 ===== */
@media (min-width: 769px) and (max-width: 1024px) {
    .faq-container {
        padding: 0 12px !important;
        gap: 16px !important;
    }

    .problem-left {
        width: 220px !important;
        flex: 0 0 220px !important;
        top: 280px !important;
    }

    .card-header h2 {
        font-size: 18px !important;
    }

    .faq-table {
        font-size: 13px !important;
    }

    .faq-table th,
    .faq-table td {
        padding: 6px 10px !important;
    }

    .process-cards-container .col-md-3 {
        flex: 0 0 calc(50% - 8px) !important;
        max-width: calc(50% - 8px) !important;
    }
}

/* ===== 保留原有的其他移动端样式 ===== */
@media (max-width: 1299px) {
    #hotall {
        width: 100% !important;
        padding: 0 15px;
        box-sizing: border-box;
    }
    body {
        font-size: 14px;
        line-height: 1.6;
    }
    br {
        line-height: 1.2;
    }
    .video-bg-section {
        width: 100%;
        min-height: auto;
        padding: 0 15px;
        box-sizing: border-box;
    }
    .video-container {
        width: 100% !important;
        height: auto !important;
        max-width: 100%;
    }
    .video-container video {
        width: 100% !important;
        height: auto !important;
        max-height: 250px;
        object-fit: cover !important;
    }
    .video-container img {
        width: 100% !important;
        height: auto !important;
        max-height: 250px !important;
        object-fit: cover !important;
    }
    .intro-container {
        width: 100% !important;
        max-width: 100%;
        margin: 20px auto;
        padding: 0 15px;
        box-sizing: border-box;
    }
    .intro-title {
        font-size: 22px;
        margin-bottom: 20px;
        line-height: 1.4;
    }
    .intro-header {
        padding: 20px 15px;
        margin-bottom: 20px;
        border-radius: 8px;
    }
    .intro-header p {
        font-size: 14px;
        line-height: 1.7;
        text-align: justify;
    }
    .advantages-section {
        margin: 20px 0;
        padding: 0 15px;
    }
    .advantages-title {
        font-size: 20px;
        margin-bottom: 20px;
        text-align: center;
        padding-left: 0;
    }
    .advantages-grid {
        display: grid !important;
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 15px !important;
        flex-wrap: wrap !important;
        width: 100%;
    }
    .advantage-card {
        padding: 15px 10px;
        min-width: auto;
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    }
    .advantage-card h3 {
        font-size: 16px;
        margin-bottom: 10px;
        line-height: 1.3;
    }
    .advantage-card p {
        font-size: 13px;
        line-height: 1.6;
    }
    .advantage-card:hover {
        transform: translateY(-3px);
        box-shadow: 0 3px 6px rgba(0, 0, 0, 0.4);
    }
    .container {
        width: 100%;
        padding: 0 15px;
        box-sizing: border-box;
    }
    .section-title {
        font-size: 24px;
        margin-bottom: 30px;
        line-height: 1.4;
    }
    .services-grid {
        display: grid !important;
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 15px !important;
        margin-top: 20px;
    }
    .service-card {
        padding: 15px 10px;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    }
    .service-card:hover {
        transform: translateY(-3px);
        box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
    }
    .service-icon {
        font-size: 30px;
        margin-bottom: 10px;
    }
    .service-title {
        font-size: 18px;
        margin-bottom: 8px;
    }
    .service-subtitle {
        font-size: 13px;
        margin-bottom: 10px;
    }
    .service-features {
        padding: 0;
        margin-top: 10px;
    }
    .service-features li {
        font-size: 12px;
        padding: 4px 0;
    }
    .philosophy-section {
        padding: 20px 15px;
        margin: 30px 0;
        border-radius: 8px;
    }
    .philosophy-content {
        display: grid !important;
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 20px !important;
    }
    .philosophy-item {
        min-width: auto;
        padding: 10px 5px;
    }
    .philosophy-item h3 {
        font-size: 16px;
        margin-bottom: 10px;
    }
    .philosophy-item p {
        font-size: 13px;
        line-height: 1.5;
    }
    img[src="/pinpai.png"] {
        width: 100%;
        max-width: 300px;
        height: auto;
        display: block;
        margin: 0 auto;
    }
    font[size="2"] {
        font-size: 12px !important;
    }
    font[size="3"] {
        font-size: 14px !important;
    }
    .intro-header a {
        color: #ff0000 !important;
        word-break: break-all;
    }
    .intro-header, .advantage-card, .philosophy-section {
        transition: opacity 0.4s ease, transform 0.4s ease !important;
    }
}

@media (max-width: 480px) {
    .video-container video,
    .video-container img {
        max-height: 180px;
    }
    .intro-title {
        font-size: 18px;
    }
    .advantages-grid {
        grid-template-columns: 1fr !important;
        gap: 10px !important;
    }
    .services-grid {
        grid-template-columns: 1fr !important;
        gap: 10px !important;
    }
    .philosophy-content {
        grid-template-columns: 1fr !important;
        gap: 15px !important;
    }
    .intro-header p {
        font-size: 13px;
    }
    .advantage-card p,
    .philosophy-item p {
        font-size: 12px;
    }
    .service-features li {
        font-size: 11px;
    }
}