/* Knowledge pages: protocol details, PLC brand pages and the FAQ hub.
   Shares the detail-page geometry; classes are prefixed kp-. */
body[data-page] .kp-page {
    font-family: "MiSans", "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei UI", "Microsoft YaHei", sans-serif;
}

body[data-page] .kp-hero {
    padding: 54px 0 46px;
    background:
        linear-gradient(180deg, #eef5fd 0%, #f7fafd 100%);
    border-bottom: 1px solid #e3ecf5;
}

body[data-page] .kp-breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin: 0 0 26px;
    color: #7d92a8;
    font-size: 0.82rem;
    line-height: 1.6;
}

body[data-page] .kp-breadcrumb a {
    color: #57708c;
    text-decoration: none;
    transition: color 180ms ease;
}

body[data-page] .kp-breadcrumb a:hover,
body[data-page] .kp-breadcrumb a:focus-visible {
    color: #075fd8;
}

body[data-page] .kp-breadcrumb span[aria-hidden="true"] {
    color: #b6c5d4;
}

body[data-page] .kp-breadcrumb strong {
    color: #22354d;
    font-weight: 650;
}

body[data-page] .kp-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin: 0 0 14px;
    padding: 5px 12px;
    color: #064aa4;
    background: #ffffff;
    border: 1px solid #c9ddf5;
    border-radius: 2px;
    font-size: 0.8rem;
    font-weight: 650;
    letter-spacing: 0.02em;
}

body[data-page] .kp-hero h1 {
    margin: 0 0 14px;
    color: #102238;
    font-size: clamp(1.7rem, 3.4vw, 2.4rem);
    font-weight: 750;
    line-height: 1.25;
    text-wrap: balance;
}

body[data-page] .kp-hero h1 small {
    display: block;
    margin-top: 6px;
    color: #7d92a8;
    font-family: "Bahnschrift", "DIN Alternate", "Segoe UI", sans-serif;
    font-size: 0.92rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

body[data-page] .kp-lead {
    max-width: 62ch;
    margin: 0 0 22px;
    color: #3c516b;
    font-size: 1.02rem;
    line-height: 1.85;
    text-wrap: pretty;
}

body[data-page] .kp-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    align-items: center;
}

body[data-page] .kp-actions .button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 44px;
    padding: 0 20px;
    color: #ffffff;
    background: #075fd8;
    border: 1px solid #075fd8;
    border-radius: 2px;
    font-size: 14px;
    font-weight: 650;
    text-decoration: none;
    transition: background-color 180ms ease, border-color 180ms ease;
}

body[data-page] .kp-actions .button:hover,
body[data-page] .kp-actions .button:focus-visible {
    background: #064aa4;
    border-color: #064aa4;
    color: #ffffff;
}

body[data-page] .kp-actions .kp-text-link {
    color: #064aa4;
    font-size: 14px;
    font-weight: 620;
    text-decoration: none;
    border-bottom: 1px solid rgba(7, 95, 216, 0.35);
    padding-bottom: 2px;
}

body[data-page] .kp-actions .kp-text-link:hover,
body[data-page] .kp-actions .kp-text-link:focus-visible {
    color: #075fd8;
    border-bottom-color: #075fd8;
}

body[data-page] .kp-actions a:focus-visible,
body[data-page] .kp-breadcrumb a:focus-visible,
body[data-page] .kp-card a:focus-visible,
body[data-page] .kp-related a:focus-visible,
body[data-page] .kp-faq summary:focus-visible {
    outline: 2px solid #6fa6f4;
    outline-offset: 2px;
    box-shadow: none;
}

body[data-page] .kp-section {
    padding: 46px 0;
}

body[data-page] .kp-section + .kp-section {
    border-top: 1px solid #e9f0f7;
}

body[data-page] .kp-section-head {
    margin: 0 0 24px;
}

body[data-page] .kp-section-head p {
    margin: 0 0 4px;
    color: #075fd8;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

body[data-page] .kp-section-head h2 {
    margin: 0;
    color: #102238;
    font-size: 1.42rem;
    font-weight: 720;
    line-height: 1.4;
}

body[data-page] .kp-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
}

body[data-page] .kp-prose {
    max-width: 70ch;
}

body[data-page] .kp-prose p {
    margin: 0 0 14px;
    color: #3c516b;
    font-size: 0.98rem;
    line-height: 1.9;
    text-wrap: pretty;
}

body[data-page] .kp-checklist {
    display: grid;
    gap: 10px;
    margin: 0;
    padding: 22px 24px;
    list-style: none;
    background: #f4f8fc;
    border: 1px solid #dfe9f4;
    border-radius: 2px;
}

body[data-page] .kp-checklist li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: #2c4058;
    font-size: 0.93rem;
    line-height: 1.7;
}

body[data-page] .kp-checklist li::before {
    content: "";
    flex: 0 0 auto;
    width: 7px;
    height: 7px;
    margin-top: 8px;
    background: #075fd8;
    border-radius: 1px;
    transform: rotate(45deg);
}

body[data-page] .kp-chip-group {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

body[data-page] .kp-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin: 0;
    padding: 9px 14px;
    color: #22354d;
    background: #ffffff;
    border: 1px solid #d7e4f2;
    border-radius: 2px;
    font-size: 0.9rem;
    font-weight: 600;
    line-height: 1.4;
    text-decoration: none;
    transition: color 180ms ease, border-color 180ms ease, background-color 180ms ease;
}

body[data-page] a.kp-chip:hover,
body[data-page] a.kp-chip:focus-visible {
    color: #064aa4;
    background: #edf5ff;
    border-color: #9cc3f2;
}

body[data-page] .kp-chip small {
    color: #7d92a8;
    font-weight: 500;
}

body[data-page] .kp-card-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

body[data-page] .kp-card {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 22px;
    background: #ffffff;
    border: 1px solid #dfe9f4;
    border-radius: 2px;
    text-decoration: none;
    transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

body[data-page] .kp-card:hover,
body[data-page] .kp-card:focus-visible {
    border-color: #9cc3f2;
    box-shadow: 0 12px 28px rgba(16, 34, 56, 0.08);
    transform: translateY(-2px);
}

body[data-page] .kp-card-category {
    color: #075fd8;
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0.06em;
}

body[data-page] .kp-card h3 {
    margin: 0;
    color: #102238;
    font-size: 1.08rem;
    font-weight: 700;
    line-height: 1.45;
}

body[data-page] .kp-card p {
    margin: 0;
    color: #5a7290;
    font-size: 0.88rem;
    line-height: 1.7;
    text-wrap: pretty;
}

body[data-page] .kp-card-more {
    margin-top: auto;
    color: #064aa4;
    font-size: 0.84rem;
    font-weight: 650;
}

body[data-page] .kp-related {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 14px;
}

body[data-page] .kp-related a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 14px 16px;
    color: #22354d;
    background: #f4f8fc;
    border: 1px solid #dfe9f4;
    border-radius: 2px;
    font-size: 0.92rem;
    font-weight: 620;
    text-decoration: none;
    transition: color 180ms ease, border-color 180ms ease, background-color 180ms ease;
}

body[data-page] .kp-related a:hover,
body[data-page] .kp-related a:focus-visible {
    color: #064aa4;
    background: #edf5ff;
    border-color: #9cc3f2;
}

body[data-page] .kp-related a::after {
    content: "›";
    color: #9cc3f2;
    font-size: 1.1rem;
    line-height: 1;
}

body[data-page] .kp-faq {
    display: grid;
    gap: 10px;
}

body[data-page] .kp-faq details {
    background: #ffffff;
    border: 1px solid #dfe9f4;
    border-radius: 2px;
}

body[data-page] .kp-faq details[open] {
    border-color: #9cc3f2;
}

body[data-page] .kp-faq summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 15px 18px;
    color: #102238;
    font-size: 0.96rem;
    font-weight: 650;
    line-height: 1.6;
    cursor: pointer;
    list-style: none;
}

body[data-page] .kp-faq summary::-webkit-details-marker {
    display: none;
}

body[data-page] .kp-faq summary::after {
    content: "+";
    flex: 0 0 auto;
    color: #075fd8;
    font-family: "Bahnschrift", "Segoe UI", sans-serif;
    font-size: 1.25rem;
    font-weight: 600;
    line-height: 1;
    transition: transform 180ms ease;
}

body[data-page] .kp-faq details[open] summary::after {
    transform: rotate(45deg);
}

body[data-page] .kp-faq-answer {
    padding: 0 18px 16px;
    color: #3c516b;
    font-size: 0.92rem;
    line-height: 1.85;
}

body[data-page] .kp-faq-group {
    margin: 0 0 34px;
}

body[data-page] .kp-faq-group > h2 {
    margin: 0 0 16px;
    color: #102238;
    font-size: 1.24rem;
    font-weight: 720;
    line-height: 1.4;
}

body[data-page] .kp-faq-group > h2::before {
    content: "";
    display: inline-block;
    width: 8px;
    height: 8px;
    margin-right: 10px;
    background: #075fd8;
    border-radius: 1px;
    transform: rotate(45deg);
    vertical-align: 2px;
}

body[data-page] .kp-cta {
    margin: 46px 0 0;
    padding: 34px 36px;
    background: #172a3d;
    border-radius: 2px;
}

body[data-page] .kp-cta h2 {
    margin: 0 0 8px;
    color: #f6f9fc;
    font-size: 1.28rem;
    font-weight: 700;
    line-height: 1.5;
}

body[data-page] .kp-cta p {
    margin: 0 0 18px;
    color: #b9c6d2;
    font-size: 0.94rem;
    line-height: 1.8;
}

body[data-page] .kp-cta .kp-actions .button {
    background: #ffffff;
    border-color: #ffffff;
    color: #064aa4;
}

body[data-page] .kp-cta .kp-actions .button:hover,
body[data-page] .kp-cta .kp-actions .button:focus-visible {
    background: #edf5ff;
    border-color: #edf5ff;
}

body[data-page] .kp-cta .kp-actions .kp-text-link {
    color: #8dbaff;
    border-bottom-color: rgba(141, 186, 255, 0.4);
}

@media (max-width: 900px) {
    body[data-page] .kp-card-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 720px) {
    body[data-page] .kp-hero {
        padding: 40px 0 34px;
    }

    body[data-page] .kp-section {
        padding: 34px 0;
    }

    body[data-page] .kp-grid {
        grid-template-columns: minmax(0, 1fr);
    }

    body[data-page] .kp-cta {
        padding: 26px 22px;
    }
}

@media (max-width: 560px) {
    body[data-page] .kp-card-grid {
        grid-template-columns: minmax(0, 1fr);
    }
}

body[data-page] .kp-case-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 12px;
    margin: 0;
    padding: 0;
    list-style: none;
}

body[data-page] .kp-case-list li {
    display: grid;
    gap: 4px;
    padding: 16px 18px;
    background: #ffffff;
    border: 1px solid #dfe9f4;
    border-left: 3px solid #075fd8;
    border-radius: 2px;
}

body[data-page] .kp-case-list strong {
    color: #22354d;
    font-size: 0.95rem;
    font-weight: 650;
    line-height: 1.6;
}

body[data-page] .kp-case-list span {
    color: #7d92a8;
    font-size: 0.82rem;
    line-height: 1.6;
}

body[data-page] .kp-video {
    margin: 0;
}

body[data-page] .kp-video video {
    display: block;
    width: 100%;
    max-width: 880px;
    aspect-ratio: 16 / 9;
    background: #102238;
    border: 1px solid #d7e4f2;
    border-radius: 2px;
}

body[data-page] .kp-video figcaption {
    margin-top: 10px;
    color: #7d92a8;
    font-size: 0.84rem;
    line-height: 1.6;
}

body[data-page] .kp-download-list {
    display: grid;
    gap: 14px;
}

body[data-page] .kp-download {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 24px 26px;
    background: #ffffff;
    border: 1px solid #dfe9f4;
    border-radius: 2px;
    transition: border-color 180ms ease, box-shadow 180ms ease;
}

body[data-page] .kp-download:hover {
    border-color: #9cc3f2;
    box-shadow: 0 12px 28px rgba(16, 34, 56, 0.08);
}

body[data-page] .kp-download-copy {
    display: grid;
    gap: 6px;
    min-width: 0;
    flex: 1;
}

body[data-page] .kp-download-copy h2 {
    margin: 0;
    color: #102238;
    font-size: 1.12rem;
    font-weight: 700;
    line-height: 1.45;
}

body[data-page] .kp-download-copy p {
    margin: 0;
    max-width: 72ch;
    color: #5a7290;
    font-size: 0.9rem;
    line-height: 1.7;
}

body[data-page] .kp-download-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    flex: 0 0 auto;
    min-height: 44px;
    padding: 0 22px;
    color: #ffffff;
    background: #075fd8;
    border-radius: 2px;
    font-size: 14px;
    font-weight: 650;
    text-decoration: none;
    transition: background-color 180ms ease;
}

body[data-page] .kp-download-button:hover,
body[data-page] .kp-download-button:focus-visible {
    background: #064aa4;
    color: #ffffff;
}

body[data-page] .kp-download-button svg {
    width: 16px;
    height: 16px;
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1.8;
}

@media (max-width: 640px) {
    body[data-page] .kp-download {
        flex-direction: column;
        align-items: stretch;
        gap: 16px;
    }

    body[data-page] .kp-download-button {
        justify-content: center;
    }
}

@media (prefers-reduced-motion: reduce) {
    body[data-page] .kp-card,
    body[data-page] .kp-related a,
    body[data-page] .kp-chip,
    body[data-page] .kp-actions .button,
    body[data-page] .kp-faq summary::after,
    body[data-page] .kp-breadcrumb a {
        transition: none;
    }
}