.module-title {
    color: #004693;
    font-size: 6.8rem;
    font-weight: bold;
    line-height: 2;
    position: relative;
    margin-bottom: 8rem;
}

.module-title::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    height: 5px;
    background: linear-gradient(to right, #004693, #60ce94);
}

.module-subtitle {
    font-size: 3.8rem;
    color: #157f47;
    font-weight: bold;
    margin-bottom: 1rem;
}

.module-subdec {
    font-size: 2rem;
    color: #777;
    margin-bottom: 3rem;
}

.green-line {
    position: relative;
    padding-bottom: 1rem;
}

.green-line::after {
    content: '';
    width: 4rem;
    height: 0.3rem;
    background: #27ae60;
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
}

.product-use-section {
    padding: 8rem 0;
    background: #eaedf5;
}

.product-use-wrap {
    display: flex;
    gap: 6rem;
    align-items: center;
    background: #fff;
}

.product-use-left {
    width: 96rem;
    height: 52rem;
    position: relative;
}

.product-img-box {
    width: 100%;
    height: 100%;
    border-radius: 15px 0 0 15px;
}

.product-img-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-play-btn {
    position: absolute;
    bottom: 4rem;
    right: 4rem;
    width: 10rem;
    height: 10rem;
    background: #004693;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 0.5rem 1.5rem rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
    cursor: pointer;
}

.video-play-btn::after {
    content: '';
    display: block;
    width: 0;
    height: 0;
    border-left: 2rem solid #fff;
    border-top: 1rem solid transparent;
    border-bottom: 1rem solid transparent;
    margin-left: 0.4rem;
}

.product-use-right {
    width: 50rem;
}

.use-tit {
    font-size: 3.8rem;
    color: #157f47;
    margin-bottom: 4rem;
    font-weight: bold;
}

.use-text {
    font-size: 2rem;
    color: #777;
}

.faq-wrap-section {
    padding-bottom: 8rem;
    background: #eaedf5;
}

.faq-wrap-section .container {
    padding: 8rem;
    background: #fff;
}

.faq-item {
    border-radius: 0.5rem;
    margin-bottom: 1.6rem;
    overflow: hidden;
    border: 1px solid #eaeaea;
    transition: all 0.3s ease;
}

.faq-item.active {
    border-color: transparent;
    box-shadow: 0 0.4rem 1.5rem rgba(0, 0, 0, 0.05);
}

.faq-head {
    height: 11rem;
    padding: 0 5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-size: 2.8rem;
    color: #444;
    background: #eaedf5;
    border-radius: 10px;
}

.faq-item.active .faq-head {
    background: #004693;
    color: #fff;
    border-radius: 10px 10px 0 0;
}

.faq-q-box {
    display: flex;
    align-items: center;
    gap: 4rem;
}

.q-tag,
.a-tag {
    width: 4.5rem;
    height: 4.5rem;
    flex-shrink: 0;
    background-size: contain;
    background-position: center center;
    background-repeat: no-repeat;
}

.q-tag {
    background: url(../images/xinwen_13.png) no-repeat center center;
    background-size: 100% 100%;
}

.a-tag {
    background: url(../images/pro_07.png) no-repeat center center;
}

.faq-item.active .faq-head .q-tag {
    background: url(../images/xinwen_10.png) no-repeat center center;
    background-size: 100% 100%;
}

.faq-arrow {
    display: inline-block;
    width: 2.7rem;
    height: 1.7rem;
    transition: transform 0.3s;
    background: url(../images/arrowbottom.png) no-repeat;
    background-size: 100% 100%;
}

.faq-item.active .faq-arrow {
    background: url(../images/arrowtop.png) no-repeat;
    background-size: 100% 100%;
}

.faq-content {
    display: none;
    padding: 2rem 5rem 2.5rem;
    background: #eaedf5;
    border-radius: 0 0 10px 10px;
}

.faq-item.active .faq-content {
    display: block;
}

.faq-a-box {
    display: flex;
    align-items: center;
    gap: 4rem;
}

.a-text {
    font-size: 2rem;
    color: #777;
    line-height: 2;
}

.product-notice-section {
    padding-bottom: 8rem;
    background: #eaedf5;
}

.product-notice-section .container {
    background: #fff;
}

.notice-wrap {
    display: flex;
    gap: 4rem;
    align-items: center;
}

.notice-left {
    width: 96rem;
    padding: 0 8rem;
}

.notice-tit {
    font-size: 3.8rem;
    color: #157f47;
    margin-bottom: 2rem;
    font-weight: bold;
}

.notice-list li {
    font-size: 2rem;
    color: #777;
    position: relative;
    padding-left: 5rem;
}

.notice-list li::before {
    content: '·';
    color: #27ae60;
    font-size: 4rem;
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
}

.notice-right {
    width: 64rem;
    height: 52rem;
}

.notice-right img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 0 15px 15px 0;
}

.anti-fake-section {
    padding: 8rem 0;
    background: #f6f8fc;
}

.fake-desc-text {
    margin: 0 auto 4rem;
    font-size: 2rem;
    color: #777;
}



.fake-compare-wrap {
    margin-bottom: 6rem;
}

.fake-label-row {
    font-size: 2.8rem;
    color: #157f47;
    font-weight: bold;
}

.fake-tip {
    font-size: 2rem;
    color: #777;
    margin-top: 1rem;
}


/* 防伪标双栏卡片 */
.tag-row {
    display: flex;
    gap: 10rem;
    margin-top: 3rem;
}

.tag-card {
    flex: 1;
    background-color: #eaedf5;
    padding: 6rem 0 3rem;
    text-align: center;
    border-radius: 6px;
}

.tag-img {
    width: 44rem;
    margin-bottom: 2rem;
}

.tag-desc {
    font-size: 2.5rem;
    color: #444;
}

.after-tag-text {
    font-size: 13px;
    color: #555;
    margin-bottom: 36px;
    border-radius: 6px;
}

/* 步骤通用标题 */
.step-header {
    display: flex;
    align-items: center;
    gap: 1.7rem;
    font-size: 3.3rem;
    font-weight: bold;
    color: #1853b7;
    padding-bottom: 2rem;
    border-bottom: 1px solid #bbb;
    margin-bottom: 6rem;
}

.step-header img {
    height: 8.7rem;
    width: auto;
    flex-shrink: 0;
}

/* 彩色内容块 */
.mokuai {
    background: #eaedf5;
    padding: 5rem 7rem;
    margin-bottom: 8rem;
}

.mokuai.m-phone {
    background: #eaedf5 url(../images/fangwei_30.png) no-repeat right center;
    background-size: auto 100%;
}

.color-block {
    display: flex;
    align-items: center;
    gap: 26px;
    padding: 22px;
    border-radius: 6px;
    margin-bottom: 14px;
}

.block-left {
    flex: 1;
    font-size: 2.8rem;
    color: #004693;
    padding-left: 16rem;
}

.block-left span {
    font-size: 1.8rem;
    line-height: 1.2;
    display: inline-block;
    color: #777;
    margin-top: 1rem;
}

.block-right {
    width: 82rem;
}

.block-blue {
    background: url(../images/abc_46.png) no-repeat left center,
        linear-gradient(to right, #004693, #ccdae9);
}

.block-green {
    background: url(../images/abc_52.png) no-repeat left center, linear-gradient(to right, #157f47, #cee4d9);
}

.block-red {
    background: url(../images/abc_55.png) no-repeat left center, linear-gradient(to right, #cc5535, #f5dcd6);
}

.block-red .block-left,
.block-blue .block-left,
.block-green .block-left {
    color: #fff;
}

.block-red .block-left span,
.block-blue .block-left span,
.block-green .block-left span {
    color: #fff;
}

.block-screenshot {
    width: 100%;
    border-radius: 4px;
}

/* 电话查询区域 */
.phone-step {
    margin-top: 44px;
}

.phone-container {
    display: flex;
    gap: 22px;
    margin-top: 20px;
}

.phone-text-wrap {
    flex: 1;
    padding-top: 28px;
}

.phone-main-text {
    font-size: 18px;
    font-weight: bold;
    color: #1853b7;
    margin-bottom: 6px;
}

.phone-tip-small {
    font-size: 12px;
    color: #666;
    margin-top: 16px;
}

.phone-img-wrap {
    flex: 1;
}

.phone-banner-img {
    width: 100%;
    border-radius: 6px;
}

/* =========== 手机端响应式样式 (屏幕宽度 < 768px) =========== */
@media (max-width: 767px) {

    /* ---------- 通用标题 ---------- */
    .module-title {
        font-size: 3.2rem;
        margin-bottom: 2.5rem;
        line-height: 1.4;
    }

    .module-title::before {
        height: 3px;
    }

    .module-subtitle {
        font-size: 2.4rem;
        margin-bottom: 0.8rem;
    }

    .module-subdec {
        font-size: 1.4rem;
        margin-bottom: 2rem;
    }

    /* ---------- 产品服务区 (使用方法) ---------- */
    .product-use-section {
        padding: 4rem 0 0;
    }

    .product-use-wrap {
        flex-direction: column;
        gap: 2rem;
        background: #fff;
    }

    .product-use-left {
        width: 100%;
        height: auto;
        position: relative;
    }

    .product-img-box {
        border-radius: 8px 8px 0 0;
        aspect-ratio: 16 / 10;
    }

    .video-play-btn {
        width: 5rem;
        height: 5rem;
        bottom: 2rem;
        right: 2rem;
    }

    .video-play-btn::after {
        border-left-width: 1.4rem;
        border-top-width: 0.7rem;
        border-bottom-width: 0.7rem;
        margin-left: 0.2rem;
    }

    .product-use-right {
        width: 100%;
        padding: 0 2rem 2rem;
    }

    .use-tit {
        font-size: 2.4rem;
        margin-bottom: 1.2rem;
    }

    .use-text {
        font-size: 1.4rem;
        line-height: 1.8;
    }

    /* ---------- 专业答疑 FAQ ---------- */
    .faq-wrap-section {
        padding: 3rem 0 0;
    }

    .faq-wrap-section .container {
        padding: 3rem 1.5rem;
    }

    .faq-head {
        height: auto;
        min-height: 6rem;
        padding: 1.5rem 2rem;
        font-size: 1.6rem;
    }

    .faq-q-box {
        gap: 1.5rem;
        flex: 1;
    }

    .q-tag,
    .a-tag {
        width: 2.8rem;
        height: 2.8rem;
    }

    .faq-arrow {
        font-size: 1.6rem;
    }

    .faq-content {
        padding: 1.5rem 2rem 2rem;
    }

    .faq-a-box {
        gap: 1.5rem;
        align-items: flex-start;
    }

    .a-text {
        font-size: 1.3rem;
        line-height: 1.7;
    }

    /* ---------- 注意事项 ---------- */
    .product-notice-section {
        padding: 4rem 0;
    }

    .notice-wrap {
        flex-direction: column;
        gap: 3rem;
    }

    .notice-left {
        width: 100%;
        padding: 0 2rem;
        margin-top: 2rem;
    }

    .notice-tit {
        font-size: 2.4rem;
        margin-bottom: 1.5rem;
    }

    .notice-list li {
        font-size: 1.4rem;
        padding-left: 2.5rem;
    }

    .notice-list li::before {
        font-size: 2.4rem;
    }

    .notice-right {
        width: 100%;
        height: auto;
        aspect-ratio: 16 / 10;
    }

    .notice-right img {
        border-radius: 8px;
    }

    /* ---------- 真伪查询 ---------- */
    .anti-fake-section {
        padding: 4rem 0;
    }

    .fake-desc-text {
        font-size: 1.4rem;
        line-height: 1.8;
        margin-bottom: 2.5rem;
    }

    .fake-label-row {
        font-size: 1.8rem;
    }

    .fake-tip {
        font-size: 1.3rem;
    }

    .container {
        width: 92%;
        padding: 0;
    }

    .query-channel-section {
        padding: 4rem 0 0;
    }

    .mokuai {
        padding: 3rem 1.5rem;
        margin-bottom: 3rem;
        background: #eaedf5;
    }

    .mokuai.m-phone {
        background: #eaedf5;
    }

    .step-header {
        font-size: 2.2rem;
        padding-bottom: 1.5rem;
        margin-bottom: 3rem;
        gap: 1rem;
    }

    .step-header img {
        height: 5rem;
    }

    .color-block {
        flex-direction: column;
        align-items: flex-start;
        gap: 2rem;
        padding: 3rem 1.5rem;
        margin-bottom: 1.2rem;
    }

    .block-left {
        padding-left: 0;
        width: 100%;
        font-size: 2rem;
    }

    .block-left p {
        font-size: 2rem;
    }

    .block-left span {
        font-size: 1.4rem;
        margin-top: 0.8rem;
    }

    .block-right {
        width: 100%;
        order: -1;
    }

    .block-screenshot {
        max-width: 100%;
        height: auto;
    }

    .tag-row {
        flex-direction: column;
        gap: 2rem;
        margin-top: 2rem;
    }

    .tag-card {
        padding: 4rem 2rem 2rem;
    }

    .tag-img {
        width: 80%;
        max-width: 30rem;
        margin-bottom: 1.5rem;
    }

    .tag-desc {
        font-size: 1.8rem;
    }

    .fake-tip {
        font-size: 1.4rem;
        margin-top: 1.5rem;
    }
}


.video-modal-overlay {
    display: none;
    position: fixed;
    z-index: 9999;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    align-items: center;
    justify-content: center;
}
.video-modal-overlay.active {
    display: flex;
}

.video-modal-content {
    position: relative;
    background: #000000;
    width: 80rem;
    height: 45rem;
    border-radius: 0.5rem;
    overflow: hidden;
    box-shadow: 0 2rem 6rem rgba(0, 0, 0, 0.6);
}

.video-modal-content video {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: contain;
}

.video-modal-content .video-modal-close {
    position: absolute;
    top: 2rem;
    right: 2rem;
    color: #ffffff;
    font-size: 3.2rem;
    font-weight: 300;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 10;
    line-height: 1;
}
.video-modal-content .video-modal-close:hover {
    color: #cccccc;
    transform: rotate(90deg);
}

/* 手机端适配 */
@media (max-width: 767px) {
    .video-modal-content {
        width: 92vw;
        height: auto;
        aspect-ratio: 16 / 9;
        max-height: 60vh;
        border-radius: 0.4rem;
    }
    .video-modal-content .video-modal-close {
        top: 1rem;
        right: 1rem;
        font-size: 2.4rem;
    }
}