/* Footer styles for index_index.html - isolated to prevent conflicts */

.site-footer {
    background: linear-gradient(160deg, #1572b8, #d880f9);
    color: #e7f0ff;
    padding: 35px clamp(20px, 5vw, 60px) 18px;
}

.site-footer .container {
    width: 100%;
    max-width: none;
    padding: 0;
}

.footer-top {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: clamp(16px, 3vw, 28px);
    font-family: Arial, sans-serif;
}

.footer-top__main {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: clamp(20px, 4vw, 40px);
    flex: 1 1 auto;
    min-width: min(100%, 240px);
}

.footer-top__main > img {
    width: 140px;
    margin-bottom: 12px;
}

.footer-social {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: flex-end;
    gap: clamp(18px, 2vw, 28px);
    margin-right: clamp(96px, 7vw, 132px);
    flex-shrink: 0;
}

.footer-social__link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: clamp(34px, 3vw, 48px);
    height: clamp(34px, 3vw, 48px);
    line-height: 0;
    color: #fff !important;
    background: transparent;
    border-radius: 0;
    box-shadow: none;
    transition: transform 0.2s ease, opacity 0.2s ease, box-shadow 0.2s ease;
    opacity: 0.95;
}

.footer-social__link--linkedin,
.footer-social__link--youtube,
.footer-social__link--x,
.footer-social__link--facebook {
    color: #fff !important;
}

.footer-social__link:hover,
.footer-social__link:focus-visible {
    opacity: 1;
    transform: translateY(-2px);
    box-shadow: none;
    outline: none;
}

.footer-social__link:focus-visible {
    outline: 2px solid #7ec8ff;
    outline-offset: 3px;
}

.footer-social__link img {
    width: clamp(28px, 5vw, 40px);
    height: clamp(28px, 5vw, 40px);
    object-fit: contain;
    display: block;
}

.footer-social__link svg {
    width: clamp(26px, 2.2vw, 36px);
    height: clamp(26px, 2.2vw, 36px);
    display: block;
    fill: #fff !important;
}

.footer-social__link svg path {
    fill: #fff !important;
}

.footer-contact {
    display: flex;
    flex-wrap: wrap;
    gap: clamp(20px, 4vw, 40px);
}

.footer-contact__item {
    display: flex;
    color: rgba(255, 255, 255, 0.9);
    gap: clamp(10px, 2vw, 20px);
    margin-left: clamp(10px, 2vw, 20px);
}

.footer-contact__label {
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 4px;
}

.footer-contact__value {
    font-size: 0.95rem;
}

.footer-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.2);
    margin: clamp(14px, 3vw, 24px) 0;
}

.footer-columns {
    display: grid;
    grid-template-columns: repeat(4, minmax(140px, 180px)) minmax(420px, 1fr);
    gap: clamp(16px, 3.2vw, 32px);
    font-family: Arial, sans-serif;
}

.footer-column h5 {
    margin-bottom: 16px;
    font-size: 1rem;
    text-transform: uppercase;
}

.footer-column a,
.footer-column p {
    display: block;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 10px;
    font-size: 0.95rem;
    transition: transform 0.2s ease, color 0.2s ease;
}

.footer-column {
    max-width: 180px;
}

.footer-column--wide {
    max-width: none;
    justify-self: end;
    width: 100%;
}

.footer-column a:hover,
.footer-column a:focus-visible {
    color: #fff;
    transform: translateX(6px);
}

.footer-subsidiaries {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 12px 40px;
}

.footer-subsidiaries p {
    word-break: break-word;
    line-height: 1.5;
}

.footer-subsidiaries--logos {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    align-items: center;
    justify-content: flex-end;
    gap: clamp(28px, 3vw, 64px);
}

.footer-subsidiaries--logos .footer-subsidiaries__logo {
    display: flex;
    align-items: center;
    line-height: 0;
    flex: 0 1 auto;
}

.footer-subsidiaries--logos .footer-subsidiaries__logo img {
    width: clamp(88px, 12vw, 160px);
    height: auto;
    object-fit: contain;
    display: block;
}

.footer-partner-slot {
    flex: 0 1 auto;
    line-height: 0;
}

.footer-subsidiaries--logos .footer-partner-slot img {
    width: clamp(72px, 6vw, 118px);
    height: auto;
    max-height: clamp(44px, 5vw, 68px);
    object-fit: contain;
    object-position: center;
    display: block;
    opacity: 0.92;
}

.footer-column .footer-subsidiaries--logos a:hover,
.footer-column .footer-subsidiaries--logos a:focus-visible {
    transform: translateY(-2px);
    color: inherit;
}

.footer__copy {
    text-align: center;
    margin-top: 40px;
    color: rgba(255, 255, 255, 0.7);
    font-family: Arial, sans-serif;
    font-size: 15.2px; /* 使用px单位确保在所有页面正常显示 */
}

/* The site uses the compact header through tablet widths, so keep the shared footer copyright compact too. */
@media (max-width: 1200px) {
    .site-footer .footer__copy {
        max-width: 100%;
        margin-top: 24px;
        padding: 0;
        font-size: 13px !important;
        line-height: 1.5;
        text-align: left;
        overflow-wrap: anywhere;
    }
}

@media (max-width: 1400px) and (min-width: 1025px) {
    .site-footer {
        padding: 35px clamp(20px, 4vw, 50px) 20px;
    }

    .footer-columns {
        gap: clamp(16px, 2.4vw, 28px);
        grid-template-columns: repeat(4, minmax(112px, 160px)) minmax(320px, 1fr);
    }

    .footer-column {
        max-width: 160px;
    }

    .footer-column--wide {
        max-width: none;
        justify-self: end;
        width: 100%;
    }

    .footer-subsidiaries {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px 35px;
    }

    .footer-subsidiaries p {
        font-size: 0.95rem;
        line-height: 1.5;
        white-space: normal;
        word-break: break-word;
    }
}

/* Keep the contact block on the same left guide as the footer navigation. */
@media (max-width: 1200px) {
    .footer-top__main {
        display: block;
        width: 100%;
    }

    .footer-contact,
    .footer-contact__item {
        margin-left: 0;
    }

    .footer__copy {
        margin-top: 28px;
        padding: 0;
        font-size: 12px;
        line-height: 1.6;
        text-align: left;
    }
}

@media (max-width: 1024px) {
    .footer-top {
        flex-direction: column;
        align-items: stretch;
        gap: 16px;
    }

    .footer-social {
        width: 100%;
        justify-content: flex-end;
        margin-right: clamp(76px, 10vw, 110px);
    }

    .footer-contact {
        flex-direction: column;
        margin-left: 0;
        gap: 12px;
    }

    .footer-contact__item {
        margin-left: 0;
    }

    .footer-subsidiaries {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }

    .footer-subsidiaries p {
        white-space: normal;
    }
}

@media (max-width: 768px) {
    .site-footer {
        padding: 25px 20px 15px;
    }

    .footer-top {
        flex-direction: column;
        align-items: stretch;
        gap: 20px;
    }

    .footer-social {
        width: 100%;
        justify-content: flex-start;
        gap: clamp(8px, 2.5vw, 14px);
        margin-right: 0;
    }

    /* All mobile footer sections share one left alignment guide. */
    .footer-top__main,
    .footer-contact,
    .footer-social,
    .footer-divider,
    .footer-columns {
        margin-left: 0;
    }

    .footer-top__main > img {
        width: 120px;
        margin-bottom: 16px;
    }

    .footer-contact {
        flex-direction: column;
        gap: 16px;
        width: 100%;
    }

    .footer-contact__item {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
        margin-left: 0;
    }

    .footer-contact__label {
        font-size: 0.85rem;
    }

    .footer-contact__value {
        font-size: 0.9rem;
        line-height: 1.5;
    }

    .footer-divider {
        margin: 20px 0;
    }

    .footer-columns {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        column-gap: 20px;
        row-gap: 28px;
    }

    .footer-column {
        max-width: none;
        width: 100%;
    }

    .footer-column--wide {
        grid-column: 1 / -1;
        justify-self: stretch;
        width: 100%;
    }

    .footer-column h5 {
        font-size: 1rem;
        margin-bottom: 12px;
    }

    .footer-column a,
    .footer-column p {
        font-size: 0.9rem;
        margin-bottom: 8px;
    }

    .footer-subsidiaries {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .footer-subsidiaries--logos {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: flex-start;
        align-items: center;
    }

    .footer__copy {
        margin-top: 30px;
        font-size: 0.8rem;
        padding: 0 10px;
        line-height: 1.6;
    }
}

@media (max-width: 600px) {
    .site-footer {
        padding: 20px 20px 12px;
    }

    .footer-top__main > img {
        width: 100px;
    }

    .footer-contact__label {
        font-size: 0.8rem;
    }

    .footer-contact__value {
        font-size: 0.85rem;
    }

    .footer-columns {
        gap: 20px;
    }

    .footer-column h5 {
        font-size: 0.95rem;
        margin-bottom: 10px;
    }

    .footer-column a,
    .footer-column p {
        font-size: 0.85rem;
        margin-bottom: 6px;
    }

    .footer-subsidiaries {
        gap: 12px;
    }

    .footer-subsidiaries p {
        font-size: 0.85rem;
        line-height: 1.6;
    }

    .footer-divider {
        margin: 16px 0;
    }

    .footer__copy {
        margin-top: 24px;
        font-size: 0.75rem;
        text-align: left;
    }
}

@media (min-width: 1920px) and (max-width: 2559px) {
    .site-footer {
        padding: 90px clamp(40px, 6vw, 100px) 40px;
    }

    .footer-top {
        gap: clamp(30px, 4vw, 50px);
        max-width: 1720px;
        margin: 0 auto;
    }

    .footer-top__main > img {
        width: 160px;
        margin-bottom: 14px;
    }

    .footer-contact {
        gap: clamp(30px, 5vw, 60px);
    }

    .footer-contact__item {
        gap: clamp(15px, 2vw, 30px);
        margin-left: clamp(15px, 2vw, 30px);
    }

    .footer-contact__label {
        font-size: 0.98rem;
    }

    .footer-contact__value {
        font-size: 1rem;
    }

    .footer-divider {
        max-width: 1720px;
        margin-left: auto;
        margin-right: auto;
    }

    .footer-columns {
        gap: clamp(20px, 2.8vw, 36px);
        grid-template-columns: repeat(4, minmax(136px, 176px)) minmax(480px, 1fr);
        max-width: 1720px;
        margin: 0 auto;
        width: 100%;
    }

    .footer-column {
        max-width: 176px;
    }

    .footer-column--wide {
        max-width: none;
        min-width: 0;
        justify-self: end;
        width: 100%;
    }

    .footer-column h5 {
        font-size: 1.1rem;
        margin-bottom: 20px;
        letter-spacing: 0.3px;
    }

    .footer-column a,
    .footer-column p {
        font-size: 1rem;
        margin-bottom: 12px;
        line-height: 1.55;
    }

    .footer-subsidiaries {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px 50px;
    }

    .footer-subsidiaries p {
        font-size: 0.95rem;
        line-height: 1.65;
        white-space: normal;
        word-break: break-word;
    }

    .footer__copy {
        margin-top: 45px;
        font-size: 15.2px; /* 使用px单位确保在所有页面正常显示 */
        max-width: 1720px;
        margin-left: auto;
        margin-right: auto;
        font-family: Arial, sans-serif;
    }
}

/* 2K分辨率优化 (2560px左右) */
@media (min-width: 2560px) {
    .site-footer {
        padding: 30px clamp(60px, 8vw, 120px) 50px;
    }

    .footer-top {
        gap: clamp(40px, 5vw, 60px);
        margin-bottom: 20px;
        max-width: 2320px;
        margin-left: auto;
        margin-right: auto;
    }

    .footer-top__main > img {
        width: 180px;
        margin-bottom: 16px;
    }

    .footer-contact {
        gap: clamp(40px, 6vw, 80px);
    }

    .footer-contact__item {
        gap: clamp(20px, 2.5vw, 40px);
        margin-left: clamp(20px, 2.5vw, 40px);
    }

    .footer-contact__label {
        font-size: 1rem;
        margin-bottom: 6px;
    }

    .footer-contact__value {
        font-size: 1.05rem;
        line-height: 1.6;
    }

    .footer-divider {
        margin: clamp(20px, 3vw, 35px) auto;
        height: 1px;
        max-width: 2320px;
    }

    .footer-columns {
        gap: clamp(24px, 3.2vw, 40px);
        grid-template-columns: repeat(4, minmax(144px, 192px)) minmax(560px, 1fr);
        max-width: 2320px;
        margin: 0 auto;
        width: 100%;
    }

    .footer-column {
        max-width: 192px;
    }

    .footer-column--wide {
        max-width: none;
        min-width: 0;
        justify-self: end;
        width: 100%;
    }

    .footer-column h5 {
        font-size: 1.15rem;
        margin-bottom: 24px;
        letter-spacing: 0.5px;
    }

    .footer-column a,
    .footer-column p {
        font-size: 1.05rem;
        margin-bottom: 14px;
        line-height: 1.6;
    }

    .footer-subsidiaries {
        grid-template-columns: repeat(2, 1fr);
        gap: 14px 60px;
        max-width: 100%;
    }

    .footer-subsidiaries p {
        font-size: 1rem;
        line-height: 1.7;
        white-space: normal;
        word-break: break-word;
        margin-bottom: 12px;
    }

    .footer__copy {
        margin-top: 50px;
        font-size: 15.2px; /* 使用px单位确保在所有页面正常显示 */
        padding: 0 20px;
        line-height: 1.8;
        max-width: 2320px;
        margin-left: auto;
        margin-right: auto;
        font-family: Arial, sans-serif;
    }
}