@media screen and (max-width: 767px) {
    .forum-container {
        width: 100%;
        margin-top: 70px;
    }

    .icon {
        position: fixed;
        top: 50%;
        right: 20px;
        transform: translateY(-50%);
        display: flex;
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        gap: 20px;
        z-index: 5;
    }

    .icon > a > img {
        max-width: 60px;
    }

    .area1 {
        width: 100%;
    }

    .area1 > .content {
        width: 100%;
    }

        .area1 > .content > .banner-box {
            width: 100%;
            display: none;
        }

    .area1 > .content > .banner-box img {
        width: 100%;
        max-height: 600px;
    }
    .area1 > .content > .mobile-banner-box {
        display: block;
    }
        .area1 > .content > .mobile-banner-box img {
            width: 100%;
        }

    .area2 {
        width: 100%;
        display: flex;
        justify-content: center;
        align-items: center;
        /* background-color: #f8f8f8; */
    }

    .area2 > .content {
        width: calc(100% - 80px);
        display: flex;
        flex-direction: column;
        justify-content: center;
        padding: 60px 0px;
    }

    .area2 > .content > .btn-box {
        width: 100%;
        display: flex;
        justify-content: center;
        align-items: flex-start;
        margin: 0 0 60px 0;
        flex-wrap: wrap;
        gap: 10px;
    }
    .area2 > .content > .btn-box > .active {
        color: #ffffff;
        background-color: #e84c2e;
    }


    .area2 > .content > .btn-box > button {
        border: #e84c2e solid 1px;
        color: #e84c2e;
        border-radius: 30px;
        font-weight: 700;
        font-size: 16px;
        padding: 15px 25px 15px 25px;
        background-color: #ffffff;
        white-space: nowrap; /* 文字不换行 */
    }

    .area2 > .content > .banner-box {
        width: 100%;
        display: flex;
        justify-content: center;
        align-items: flex-start;
    }

    .area2 > .content > .banner-box > img {
        width: 100%;
    }

    .area3 {
        width: 100%;
        display: flex;
        justify-content: center;
        align-items: center;
        /* background-color: #f8f8f8; */
    }

    .area3 > .content {
        width: calc(100% - 80px);
        display: flex;
        flex-direction: column;
        justify-content: center;
        padding: 60px 0px;
    }

    .area3 > .content > .question {
        width: 100%;
        border: solid 0.5px #c7c7c7;
        border-radius: 20px;
        /* position: relative; */
        margin: 0 0 50px 0;
        font-weight: 700;
    }

    .area3 > .content > .question > .box-header {
        width: 100%;
        display: flex;
        align-items: center;
        background-color: #e84c2e;
        border-radius: 20px 20px 0 0;
        color: #ffffff;
        padding: 20px;
        gap: 20px;
    }

    .area3 > .content > .question > .box-header > .question-icon > img {
        width: 50px;
    }

    .area3 > .content > .question > .box-header > .text {
        width: 100%;
        display: flex;
        flex-direction: column;
        gap: 10px;
        font-size: 16px;
        font-weight: 700;
    }

    .area3 > .content > .question > .box-header > button {
        background-color: transparent;
        border: none;
        color: #ffffff;
        font-weight: bold;
        font-size: 24px;
        cursor: pointer;
    }

    .custom-plus-button {
        display: flex;
        border: none;
        background-color: transparent;
        color: #007bff;
        font-size: 2em;
        cursor: pointer;
        padding: 0;
        margin-left: 10px;
        position: relative;
    }

    .custom-plus-button:hover {
        color: #0056b3;
    }

    .custom-plus-button::after {
        content: '+';
        position: absolute;
        top: 0px;
        left: -20px;
        font-size: 1.5em;
    }

    .custom-plus-button.minus::after {
        content: '-';
        font-size: 1.5em;
    }

    .area3 > .content > .question > .answer-box {
        width: 100%;
        display: flex;
        flex-direction: column;
        justify-content: flex-start;
    }

    .area3 > .content > .question > .answer-box > .answer-content {
        width: 100%;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        margin: 20px 0 0 0;
    }
        .area3 > .content > .question > .answer-box > .answer-content > .answer-detail > .answer-detail-box {
            display: flex;
            align-items: center;
        }

            .area3 > .content > .question > .answer-box > .answer-content > .answer-detail > .answer-detail-box > .img-box > img {
                max-height: 50px;
            }

    .area3 > .content > .question > .answer-box > .answer-content > .answer-detail {
        width: calc(100% - 100px);
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    .area3 > .content > .question > .answer-box > .answer-content > .answer-detail::after {
        content: ''; /* 设置伪元素的内容为空 */
        width: 100%; /* 设置宽度为父元素的宽度 */
        height: 2px; /* 设置边线的高度 */
        background-color: #ccc; /* 设置边线的颜色 */
    }

    .area3 > .content > .question > .answer-box > .reply-title {
        text-align: center;
        color: #e84c2e;
        font-size: 24px;
        margin: 20px;
    }

    .area3 > .content > .question > .answer-box > .reply-content {
        width: 100%;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        margin: 20px 0 0 0;
    }
    .area3 > .content > .question > .answer-box > .reply-content > form {
        width: 100%;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: flex-start;
    }

    .area3 > .content > .question > .answer-box > .reply-content > .reply-detail {
        width: calc(100% - 100px);
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 10px;
        margin: 0 0 40px 0;
    }

    .area3 > .content > .question > .answer-box > .reply-content > .reply-detail .reply-input {
        display: flex;
        flex-direction: column;
        gap: 20px;
    }

    .area3 > .content > .question > .answer-box > .reply-content > .reply-detail .reply-input div {
        display: flex;
    }

    .area3 > .content > .question > .answer-box > .reply-content > .reply-detail > form {
        width: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 20px;
    }

    .area3 > .content > .question > .answer-box > .reply-content > .reply-detail > form label {
        width: 60px;
    }

    .area3 > .content > .question > .answer-box > .reply-content > .reply-detail form input,
    textarea {
        width: 100%;
        border-radius: 20px;
        background-color: #f8f8f8;
    }

    .area3 > .content > .question > .answer-box > .reply-content > .reply-detail form input {
        height: 30px;
        padding: 0 10px;
    }

    .area3 > .content > .question > .answer-box > .reply-content > .reply-detail form textarea {
        height: 100px;
        padding: 10px;
    }

    .area3
        > .content
        > .question
        > .answer-box
        > .reply-content
        > .reply-detail
        > form
        .area3
        > .content
        > .question
        > .answer-box
        > .reply-content
        > .reply-detail
        button {
        background-color: transparent;
        border: none;
        cursor: pointer;
    }
    .area3 > .content > .question > .answer-box > .reply-content > .reply-detail button {
        border: none;
        background-color: transparent;
    }
    .area3 > .content > .question > .answer-box > .reply-content > .reply-detail button img {
        width: 50px;
    }
    .area4 {
        width: 100%;
        display: flex;
        justify-content: center;
        align-items: center;
    }

    .area4 > .content {
        width: calc(100% - 80px);
        display: flex;
        flex-direction: column;
        justify-content: center;
        border: solid 1px #c7c7c7;
        border-radius: 20px;
        padding: 40px;
        box-shadow: 0px 3px 3px rgba(0, 0, 0, 0.5);
    }
    .area4 > .content > .request-title {
        text-align: center;
        color: #e84c2e;
        font-size: 24px;
        font-weight: 700;
    }

    .area4 > .content > .request-content {
        width: 100%;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        margin: 20px 0 0 0;
    }

    .area4 > .content > .request-content > form {
        display: flex;
        flex-direction: column;
        gap: 20px;
    }

    .area4 > .content > .request-content > form input {
        width: 100%;
        border-radius: 20px;
        background-color: #f8f8f8;
        height: 30px;
        padding: 0 10px;
    }

    .area4 > .content > .request-content > form textarea {
        height: 100px;
        padding: 10px;
    }

    .area4 > .content > .request-content > form > div {
        display: flex;
    }
    .area4 > .content > .request-content > form label {
        width: 60px;
        font-weight: 700;
        white-space: nowrap;
    }

    .area4 > .content > .request-content > form > .submit-box {
        width: 100%;
        display: flex;
        justify-content: center;
    }

    .area4 > .content > .request-content > form > .submit-box > button {
        width: 100px;
        border: none;
        border-radius: 20px;
        padding: 10px 0;
        background-color: #e84c2e;
        color: #ffffff;
        font-weight: 700;
        font-size: 16px;
    }
}

@media screen and (min-width: 768px) {
    .forum-container {
        width: 100%;
    }

    .icon {
        position: fixed;
        top: 50%;
        right: 20px;
        transform: translateY(-50%);
        display: flex;
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        gap: 20px;
        z-index: 5;
    }

    .icon > a > img {
        max-width: 60px;
    }

    .area1 {
        width: 100%;
    }

    .area1 > .content {
        width: 100%;
    }

    .area1 > .content > .banner-box {
        width: 100%;
    }

    .area1 > .content > .banner-box img {
        width: 100%;
    }
    .area1 > .content > .mobile-banner-box {
        display: none;
    }

    .area2 {
        width: 100%;
        display: flex;
        justify-content: center;
        align-items: center;
        /* background-color: #f8f8f8; */
    }

    .area2 > .content {
        max-width: 1280px;
        display: flex;
        flex-direction: column;
        justify-content: center;
        width: calc(100% - 600px);
        padding: 60px 0px;
    }

    .area2 > .content > .btn-box {
        width: 100%;
        display: flex;
        justify-content: space-between;
        align-items: flex-start;
        margin: 0 0 60px 0;
    }

    .area2 > .content > .btn-box > .active {
        color: #ffffff;
        background-color: #e84c2e;
    }


    .area2 > .content > .btn-box > button {
        border: #e84c2e solid 1px;
        color: #e84c2e;
        border-radius: 30px;
        font-weight: 700;
        font-size: 18px;
        padding: 15px 25px 15px 25px;
        background-color: #ffffff;
    }

    .area2 > .content > .banner-box {
        width: 100%;
        display: flex;
        justify-content: center;
        align-items: flex-start;
    }

    .area2 > .content > .banner-box > img {
        width: 100%;
    }

    .area3 {
        width: 100%;
        display: flex;
        justify-content: center;
        align-items: center;
        /* background-color: #f8f8f8; */
    }

    .area3 > .content {
        max-width: 1280px;
        display: flex;
        flex-direction: column;
        justify-content: center;
        width: calc(100% - 600px);
        padding: 60px 0px;
    }

    .area3 > .content > .question {
        width: 100%;
        border: solid 0.5px #c7c7c7;
        border-radius: 20px;
        /* position: relative; */
        margin: 0 0 50px 0;
        font-weight: 700;
    }

    .area3 > .content > .question > .box-header {
        width: 100%;
        display: flex;
        align-items: center;
        background-color: #e84c2e;
        border-radius: 20px 20px 0 0;
        color: #ffffff;
        padding: 20px;
        gap: 20px;
    }

    .area3 > .content > .question > .box-header > .question-icon {
    }

    .area3 > .content > .question > .box-header > .text {
        width: 100%;
        display: flex;
        flex-direction: column;
        gap: 10px;
        font-size: 16px;
        font-weight: 700;
    }

    .area3 > .content > .question > .box-header > button {
        background-color: transparent;
        border: none;
        color: #ffffff;
        font-weight: bold;
        font-size: 24px;
        cursor: pointer;
    }

    .custom-plus-button {
        display: flex;
        border: none;
        background-color: transparent;
        color: #007bff;
        font-size: 2em;
        cursor: pointer;
        padding: 0;
        margin-left: 10px;
        position: relative;
    }

    .custom-plus-button:hover {
        color: #0056b3;
    }

    .custom-plus-button::after {
        content: '+';
        position: absolute;
        top: 10px;
        left: -20px;
        font-size: 1.5em;
    }

    .custom-plus-button.minus::after {
        content: '-';
        font-size: 1.5em;
    }

    .area3 > .content > .question > .answer-box {
        width: 100%;
        display: flex;
        flex-direction: column;
        justify-content: flex-start;
    }

    .area3 > .content > .question > .answer-box > .answer-content {
        width: 100%;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        margin: 20px 0 0 0;
    }
        .area3 > .content > .question > .answer-box > .answer-content > .answer-detail > .answer-detail-box {
            display: flex;
            align-items: center;
        }
        .area3 > .content > .question > .answer-box > .answer-content > .answer-detail > .answer-detail-box > .img-box > img {
            max-height: 50px;
        }

    .area3 > .content > .question > .answer-box > .answer-content > .answer-detail {
        width: calc(100% - 100px);
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    .area3 > .content > .question > .answer-box > .answer-content > .answer-detail::after {
        content: ''; /* 设置伪元素的内容为空 */
        width: 100%; /* 设置宽度为父元素的宽度 */
        height: 2px; /* 设置边线的高度 */
        background-color: #ccc; /* 设置边线的颜色 */
    }

    .area3 > .content > .question > .answer-box > .reply-title {
        text-align: center;
        color: #e84c2e;
        font-size: 24px;
        margin: 20px;
    }

    .area3 > .content > .question > .answer-box > .reply-content {
        width: 100%;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        margin: 20px 0 0 0;
    }
    .area3 > .content > .question > .answer-box > .reply-content > form {
        width: 100%;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: flex-start;
    }

    .area3 > .content > .question > .answer-box > .reply-content > .reply-detail {
        width: calc(100% - 100px);
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 10px;
        margin: 0 0 40px 0;
    }

    .area3 > .content > .question > .answer-box > .reply-content > .reply-detail .reply-input {
        display: flex;
        flex-direction: column;
        gap: 20px;
    }

    .area3 > .content > .question > .answer-box > .reply-content > .reply-detail .reply-input div {
        display: flex;
    }

    .area3 > .content > .question > .answer-box > .reply-content > .reply-detail > form {
        width: 100%;
        display: flex;
        align-items: flex-end;
        justify-content: center;
        flex-direction: row;
        gap: 20px;
    }

    .area3 > .content > .question > .answer-box > .reply-content > .reply-detail > form label {
        width: 60px;
    }

    .area3 > .content > .question > .answer-box > .reply-content > .reply-detail form input,
    textarea {
        width: 100%;
        border-radius: 20px;
        background-color: #f8f8f8;
    }

    .area3 > .content > .question > .answer-box > .reply-content > .reply-detail form input {
        height: 30px;
        padding: 0 10px;
    }

    .area3 > .content > .question > .answer-box > .reply-content > .reply-detail form textarea {
        height: 100px;
        padding: 10px;
    }

    .area3
        > .content
        > .question
        > .answer-box
        > .reply-content
        > .reply-detail
        > form
        .area3
        > .content
        > .question
        > .answer-box
        > .reply-content
        > .reply-detail
        button {
        background-color: transparent;
        border: none;
        cursor: pointer;
    }
    .area3 > .content > .question > .answer-box > .reply-content > .reply-detail button {
        border: none;
        background-color: transparent;
    }
    .area3 > .content > .question > .answer-box > .reply-content > .reply-detail button img {
        width: 50px;
    }
    .area4 {
        width: 100%;
        display: flex;
        justify-content: center;
        align-items: center;
    }

    .area4 > .content {
        max-width: 1280px;
        display: flex;
        flex-direction: column;
        justify-content: center;
        width: calc(100% - 600px);
        border: solid 1px #c7c7c7;
        border-radius: 20px;
        padding: 40px;
        box-shadow: 0px 3px 3px rgba(0, 0, 0, 0.5);
    }
    .area4 > .content > .request-title {
        text-align: center;
        color: #e84c2e;
        font-size: 24px;
        font-weight: 700;
    }

    .area4 > .content > .request-content {
        width: 100%;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        margin: 20px 0 0 0;
    }

    .area4 > .content > .request-content > form {
        display: flex;
        flex-direction: column;
        gap: 20px;
    }

    .area4 > .content > .request-content > form input {
        width: 100%;
        border-radius: 20px;
        background-color: #f8f8f8;
        height: 30px;
        padding: 0 10px;
    }

    .area4 > .content > .request-content > form textarea {
        height: 100px;
        padding: 10px;
    }

    .area4 > .content > .request-content > form > div {
        display: flex;
    }
    .area4 > .content > .request-content > form label {
        width: 60px;
        font-weight: 700;
    }

    .area4 > .content > .request-content > form > .submit-box {
        width: 100%;
        display: flex;
        justify-content: center;
    }

    .area4 > .content > .request-content > form > .submit-box > button {
        width: 100px;
        border: none;
        border-radius: 20px;
        padding: 10px 0;
        background-color: #e84c2e;
        color: #ffffff;
        font-weight: 700;
        font-size: 16px;
    }
}