@charset "utf-8";

/* Platform About/Contact pages. Existing desktop CSS remains authoritative. */
.platform-info-menu-toggle { display: none; }

@media (max-width: 768px) {
    body.platform-info-page { min-width: 0; overflow-x: hidden; }
    .platform-info-page .main_content { box-sizing: border-box; width: 100%; max-width: 100%; padding-right: 16px; padding-left: 16px; }
    .platform-info-page .top-header { display: flex; align-items: flex-start; gap: 12px; }
    .platform-info-page .logo-txt { min-width: 0; padding-left: 10px; border-left: 3px solid #1b66e6; }
    .platform-info-page .logo-txt img { width: auto; max-width: 150px; height: auto; }
    .platform-info-page .header-right { display: flex; flex: 1; flex-wrap: wrap; justify-content: flex-end; gap: 6px 12px; min-width: 0; }
    .platform-info-page .header-right span { margin-left: 0; font-size: 14px; }
    .platform-info-page .lang-text { margin-left: 6px; padding: 0 0 0 12px; border: 0; border-left: 1px solid #d8dee8; border-radius: 0; background: transparent; line-height: 32px; }
    .platform-info-page .lang-text::before { margin-right: 6px; color: #222; content: "\f0ac"; font-family: "Font Awesome 6 Free"; font-weight: 900; }
    .platform-info-page .header { height: auto; min-height: 0; }
    .platform-info-page .header_main { box-sizing: border-box; width: 100%; max-width: 100%; padding-top: 12px; padding-bottom: 12px; }
    .platform-info-page .platform-info-menu-toggle[hidden] { display: none !important; }
    .platform-info-page.platform-info-responsive-ready .platform-info-menu-toggle { display: flex; align-items: center; gap: 9px; min-height: 38px; padding: 0 14px; border: 1px solid rgba(255,255,255,.75); border-radius: 4px; color: #fff; background: transparent; cursor: pointer; font-size: 16px; }
    .platform-info-page .platform-info-menu-icon,
    .platform-info-page .platform-info-menu-icon::before,
    .platform-info-page .platform-info-menu-icon::after { display: block; width: 20px; height: 2px; background: #fff; content: ""; transition: transform .2s ease; }
    .platform-info-page .platform-info-menu-icon { position: relative; }
    .platform-info-page .platform-info-menu-icon::before { position: absolute; top: -6px; }
    .platform-info-page .platform-info-menu-icon::after { position: absolute; top: 6px; }
    .platform-info-page .header.platform-info-menu-open .platform-info-menu-icon { background: transparent; }
    .platform-info-page .header.platform-info-menu-open .platform-info-menu-icon::before { top: 0; transform: rotate(45deg); }
    .platform-info-page .header.platform-info-menu-open .platform-info-menu-icon::after { top: 0; transform: rotate(-45deg); }
    .platform-info-page.platform-info-responsive-ready .header .nav_box { display: none; padding-top: 10px; }
    .platform-info-page.platform-info-responsive-ready .header.platform-info-menu-open .nav_box { display: block; }
    .platform-info-page .nav_box ul { display: block; }
    .platform-info-page .nav_box ul li { padding: 0; border-top: 1px solid rgba(255,255,255,.2); }
    .platform-info-page .nav_box ul li a,
    .platform-info-page .nav_active a { display: block; padding: 8px 12px; border-radius: 0; background: transparent; font-size: 16px; line-height: 28px; }

    .platform-info-page .position_content { bottom: auto; display: flex; flex-direction: column; gap: 20px; padding-top: 16px; padding-bottom: 20px; }
    .platform-info-page .journal_detail_left,
    .platform-info-page .journal_detail_right,
    .platform-info-page .detail_content,
    .platform-info-page .detail_box { box-sizing: border-box; min-width: 0; max-width: 100%; }
    .platform-info-page .journal_detail_left,
    .platform-info-page .journal_detail_right { float: none; width: 100%; }
    .platform-info-page .journal_detail_right { margin-top: 0; }
    .platform-info-page .detail_content { overflow: hidden; }
    .platform-info-page .page_nav_track { box-sizing: border-box; height: auto; min-height: 52px; padding: 12px 16px; line-height: 26px; overflow-wrap: anywhere; }
    .platform-info-page .detail_box { padding: 18px 16px; }
    .platform-info-page .page_title { margin-bottom: 14px; font-size: 20px; line-height: 30px; overflow-wrap: anywhere; }
    .platform-info-page .normal_p,
    .platform-info-page .isg { line-height: 25px; overflow-wrap: anywhere; word-break: break-word; }
    .platform-info-page .journal_fast_content { float: none; box-sizing: border-box; width: 100%; margin-bottom: 20px; }
    .platform-info-page .journal_fast_content .big_bt { height: auto; min-height: 48px; padding: 0 16px; line-height: 48px; }
    .platform-info-page .journal_fast_content .siber_info { padding: 16px; }
    .platform-info-page .journal_fast_content img { display: block; max-width: 100%; height: auto; }
    .platform-info-page .journal_fast_content .contact_info img { margin-right: auto; margin-left: auto; }
    .platform-info-page .journal_fast_content > a { display: flex; justify-content: center; overflow: hidden; background: #f7f9fd; }
    .platform-info-page .journal_fast_content > a > img { width: 100%; max-width: 320px; }
    .platform-info-page .journal_fast_content .normal_btn { box-sizing: border-box; width: 100%; text-align: center; }

    .platform-about-page .second_title { height: auto; min-height: 40px; line-height: 24px; padding: 8px 0; overflow-wrap: anywhere; }
    .platform-about-page .advantage ul { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 12px; }
    .platform-about-page .advantage ul li { box-sizing: border-box; min-width: 0; margin: 0; padding: 12px; }
    .platform-about-page .advantage_p,
    .platform-about-page .advantage_title { overflow-wrap: anywhere; word-break: break-word; }
    .platform-about-page .basic_table_font { width: 100%; table-layout: fixed; }
    .platform-about-page .basic_table_font td:first-child { width: 24px; }
    .platform-about-page .basic_table_font td { line-height: 24px; overflow-wrap: anywhere; word-break: break-word; }
    .platform-about-page .contact_item { float: none; box-sizing: border-box; width: 100%; max-width: 100%; border-right: 0; }
    .platform-about-page .contact_item li,
    .platform-about-page .contact_item a { overflow-wrap: anywhere; word-break: break-word; }

    .platform-contact-page #contactForm { box-sizing: border-box; width: 100%; max-width: 100%; }
    .platform-contact-page #contactForm .row_form { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 20px; }
    .platform-contact-page #contactForm .form_content,
    .platform-contact-page #contactForm .col1_3,
    .platform-contact-page #contactForm .col1_1 { float: none; box-sizing: border-box; width: 100%; max-width: 100%; margin: 0; }
    .platform-contact-page #contactForm .span1 { float: none; margin-bottom: 6px; line-height: 24px; }
    .platform-contact-page #contactForm .fm_text,
    .platform-contact-page #contactForm .fm-textarea { box-sizing: border-box; width: 100% !important; max-width: 100%; }
    .platform-contact-page #contactForm .fm_text { height: 42px; }
    .platform-contact-page #contactForm .fm-textarea { min-height: 150px; resize: vertical; }
    .platform-contact-page #contactForm .error { line-height: 22px; overflow-wrap: anywhere; }
    .platform-contact-page #contactForm + .submit_button { display: block; width: auto; max-width: 100%; margin: 16px auto 0; padding: 0 24px; text-align: center; }
    .platform-contact-page .contact_email { width: 100%; max-width: 100%; }
    .platform-contact-page .contact_email ul { grid-template-columns: 1fr; gap: 12px; }
    .platform-contact-page .contact_email ul li { min-width: 0; grid-template-columns: 20px minmax(0,1fr); gap: 10px; padding: 12px; }
    .platform-contact-page .contact_email .type,
    .platform-contact-page .contact_email .email,
    .platform-contact-page .contact_email .email a { line-height: 24px; overflow-wrap: anywhere; word-break: break-word; }
    .platform-contact-page .contact_cn_box { display: flex; align-items: center; flex-wrap: nowrap; box-sizing: border-box; width: 100%; max-width: 100%; gap: 14px; }
    .platform-contact-page .contact_cn_left,
    .platform-contact-page .contact_cn_right { float: none; min-width: 0; margin: 0; }
    .platform-contact-page .contact_cn_left img { display: block; width: 90px; max-width: 100%; height: auto; margin: 0 auto; }
    .platform-contact-page .contact_cn_right { flex: 1 1 180px; }
    .platform-contact-page .contact_cn_p1,
    .platform-contact-page .contact_cn_p2 { line-height: 24px; overflow-wrap: anywhere; word-break: break-word; }

    .platform-info-page .login_footer_content { box-sizing: border-box; width: 100%; padding: 4px 16px 20px; margin-bottom: 0; }
    .platform-info-page .login_footer_content .first_foot { float: none; box-sizing: border-box; width: 100% !important; margin-right: 0 !important; padding-bottom: 12px; }
    .platform-info-page .first_foot p { line-height: 24px; overflow-wrap: anywhere; }
    .platform-info-page .copyright { box-sizing: border-box; height: auto; min-height: 50px; padding: 10px 16px; line-height: 24px; }
}

@media (max-width: 480px) {
    .platform-info-page .main_content { padding-right: 12px; padding-left: 12px; }
    .platform-info-page .top-header {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        gap: 8px;
        padding-top: 12px;
        padding-bottom: 12px;
    }
    .platform-info-page .logo-txt {
        flex: 1 1 auto;
        min-width: 0;
        padding-left: 8px;
    }
    .platform-info-page .logo-txt img { max-width: 135px; }
    .platform-info-page .header-right {
        flex: 0 0 auto;
        width: auto;
        flex-wrap: nowrap;
        align-items: center;
        justify-content: flex-end;
        gap: 2px;
    }
    .platform-info-page .header-right span { font-size: 12px; line-height: 28px; }
    .platform-info-page .header-right > span:not(.lang-text) a {
        display: block;
        padding: 0 4px;
        border-radius: 4px;
        line-height: 28px;
    }
    .platform-info-page .lang-text {
        margin-left: 3px;
        padding: 0 0 0 7px;
        line-height: 28px;
    }
    .platform-info-page .lang-text::before { display: none; }
    .platform-info-page .header_main { padding-top: 10px; padding-bottom: 10px; }
    .platform-info-page .detail_box { padding: 16px 14px; }
    .platform-about-page .advantage ul { grid-template-columns: 1fr; }
    .platform-contact-page .contact_cn_box { justify-content: center; text-align: center; }
    .platform-contact-page .contact_cn_left { flex: 0 0 auto; }
    .platform-contact-page .contact_cn_right { flex: 1 1 auto; width: auto; text-align: left; }
}