.home-page .service-assurance {
    box-sizing: border-box;
    width: calc(100% - 144px);
    max-width: 1280px;
    margin: 96px auto;
    color: #142236;
    font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
    scroll-margin-top: 80px;
}

.service-assurance > h2 {
    margin: 0 0 44px;
    font-size: 32px;
    font-weight: 700;
    line-height: 1.4;
    text-align: center;
}

.service-assurance__grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
}

.service-assurance__card {
    display: flex;
    flex-direction: column;
    min-width: 0;
    min-height: 470px;
    padding: 34px 28px 28px;
    border-radius: 24px;
    overflow: hidden;
}

.service-assurance__card--engineer {
    background: linear-gradient(160deg, #cef3e9, #edfcf7);
}

.service-assurance__card--security {
    background: linear-gradient(160deg, #d2efff, #f0f9ff);
}

.service-assurance__card--demo {
    background: linear-gradient(160deg, #ffedb6, #fffbeb);
}

.service-assurance__card h3 {
    margin: 0;
    font-size: 26px;
    font-weight: 700;
    line-height: 1.45;
}

.service-assurance__card p {
    min-height: 5.4em;
    margin: 16px 0 0;
    font-size: 17px;
    line-height: 1.8;
    color: #394a5c;
}

.service-assurance__image {
    display: block;
    width: calc(100% + 36px);
    height: auto;
    aspect-ratio: 3 / 2;
    object-fit: contain;
    margin: 20px -18px 24px;
}

.service-assurance__action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    align-self: flex-start;
    gap: 16px;
    box-sizing: border-box;
    min-height: 44px;
    margin-top: auto;
    padding: 10px 0;
    border: 0;
    border-radius: 999px;
    background: transparent;
    color: #17445a;
    font: inherit;
    font-size: 15px;
    font-weight: 600;
    line-height: 1.5;
    text-decoration: none;
    cursor: pointer;
}

.service-assurance__action:hover {
    color: #008dd4;
}

.service-assurance__action--primary {
    padding: 12px 22px;
    background: #03a9f4;
    color: #fff;
}

.service-assurance__action--primary:hover {
    background: #0097df;
    color: #fff;
}

.service-assurance__action:focus-visible {
    outline: 2px solid #008dd4;
    outline-offset: 4px;
}

#security-credentials {
    scroll-margin-top: 80px;
}

@media (max-width: 1100px) {
    .home-page .service-assurance {
        width: calc(100% - 80px);
    }

    .service-assurance__grid {
        gap: 20px;
    }

    .service-assurance__card {
        min-height: 420px;
        padding: 28px 22px 24px;
    }

    .service-assurance__card h3 {
        font-size: 23px;
    }

    .service-assurance__card p {
        font-size: 16px;
    }
}

@media (max-width: 900px) {
    .home-page .service-assurance {
        width: calc(100% - 48px);
        margin: 72px auto;
    }
}

@media (max-width: 760px) {
    .service-assurance > h2 {
        margin-bottom: 28px;
        font-size: 28px;
    }

    .service-assurance__grid {
        grid-template-columns: 1fr;
    }

    .service-assurance__card {
        min-height: 0;
        padding: 28px;
    }

    .service-assurance__card p {
        min-height: 0;
    }

    .service-assurance__image {
        align-self: center;
        width: calc(100% + 24px);
        max-width: 440px;
        margin: 16px -12px;
    }
}

@media (max-width: 480px) {
    .service-assurance__card p {
        padding-right: 40px;
    }
}