:root {
    --seo-brand: #7b292b;
    --seo-brand-active: #a33a3c;
    --seo-paper: #fff;
    --seo-surface: #eef1f3;
    --seo-deep: #e3e8eb;
    --seo-text: #15191e;
    --seo-secondary: #4e5863;
    --seo-muted: #697581;
    --seo-divider: #d5dbdf;
}

.seo-page,
.seo-page * {
    box-sizing: border-box;
}

.seo-page {
    color: var(--seo-text);
    background: var(--seo-paper);
    font-family: "Alibaba PuHuiTi", "Noto Sans SC", system-ui, sans-serif;
    font-size: 16px;
    line-height: 1.75;
    overflow: hidden;
}

.seo-shell {
    width: min(1180px, calc(100% - 48px));
    margin-inline: auto;
}

.seo-breadcrumb {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    padding-top: 94px;
    color: var(--seo-muted);
    font-size: 14px;
}

.seo-breadcrumb a {
    color: inherit;
    text-decoration: none;
}

.seo-breadcrumb a:hover,
.seo-breadcrumb a:focus-visible {
    color: var(--seo-brand);
}

.seo-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(360px, .92fr);
    gap: clamp(48px, 8vw, 112px);
    align-items: center;
    min-height: 610px;
    padding-block: 48px 78px;
}

.seo-hero h1 {
    max-width: 13ch;
    margin: 0 0 28px;
    font-size: clamp(36px, 3.5vw, 44px);
    font-weight: 650;
    letter-spacing: -.035em;
    line-height: 1.08;
    text-wrap: balance;
}

.seo-hero__lead {
    max-width: 66ch;
    margin: 0 0 24px;
    color: var(--seo-secondary);
    font-size: clamp(17px, 1.7vw, 20px);
}

.seo-hero__facts {
    max-width: 680px;
    margin: 0 0 28px;
    border-top: 1px solid var(--seo-divider);
}

.seo-hero__facts > div {
    display: grid;
    grid-template-columns: minmax(120px, .34fr) minmax(0, 1.66fr);
    gap: 20px;
    padding: 11px 0;
    border-bottom: 1px solid var(--seo-divider);
}

.seo-hero__facts dt {
    font-weight: 650;
}

.seo-hero__facts dd {
    margin: 0;
    color: var(--seo-secondary);
    font-size: 14px;
    line-height: 1.6;
}

.seo-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.seo-button {
    display: inline-flex;
    min-height: 54px;
    align-items: center;
    justify-content: center;
    padding: 11px 20px;
    border: 1px solid var(--seo-text);
    border-radius: 8px;
    color: var(--seo-text);
    font-weight: 600;
    text-decoration: none;
    transition: background-color .2s ease-out, border-color .2s ease-out, color .2s ease-out, transform .2s ease-out;
}

.seo-button--primary {
    border-color: var(--seo-brand);
    color: #fff;
    background: var(--seo-brand);
}

.seo-button:hover {
    transform: translateY(-2px);
}

.seo-button--primary:hover,
.seo-button--primary:focus-visible {
    border-color: var(--seo-brand-active);
    background: var(--seo-brand-active);
}

.seo-button:focus-visible,
.seo-link:focus-visible {
    outline: 3px solid rgba(123, 41, 43, .28);
    outline-offset: 3px;
}

.seo-hero__visual {
    position: relative;
    min-height: 480px;
    background: var(--seo-surface);
}

.seo-hero__visual img {
    width: 100%;
    height: 100%;
    min-height: 480px;
    object-fit: cover;
    display: block;
}

.seo-hero__visual--contain img {
    object-fit: contain;
    padding: 38px;
}

.seo-hero__note {
    position: absolute;
    inset-inline: 24px;
    bottom: 24px;
    margin: 0;
    padding: 16px 18px;
    color: #fff;
    background: rgba(21, 25, 30, .88);
    font-size: 14px;
}

.seo-section {
    padding-block: 104px;
}

.seo-section--surface {
    background: var(--seo-surface);
}

.seo-section__intro {
    display: grid;
    grid-template-columns: minmax(260px, .72fr) minmax(0, 1.28fr);
    gap: clamp(40px, 8vw, 120px);
    margin-bottom: 54px;
}

.seo-section h2 {
    max-width: 16ch;
    margin: 0;
    font-size: clamp(30px, 4vw, 48px);
    line-height: 1.15;
    letter-spacing: -.025em;
    text-wrap: balance;
}

.seo-section__intro p {
    max-width: 70ch;
    margin: 6px 0 0;
    color: var(--seo-secondary);
}

.seo-criteria {
    margin: 0;
    border-top: 1px solid var(--seo-divider);
}

.seo-criteria__row {
    display: grid;
    grid-template-columns: minmax(190px, .42fr) minmax(0, 1.58fr);
    gap: 38px;
    padding: 24px 0;
    border-bottom: 1px solid var(--seo-divider);
}

.seo-criteria dt {
    font-weight: 650;
}

.seo-criteria dd {
    max-width: 72ch;
    margin: 0;
    color: var(--seo-secondary);
}

.seo-process {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
    margin: 0;
    padding: 0;
    border-top: 1px solid var(--seo-divider);
    list-style: none;
}

.seo-process li {
    min-height: 190px;
    padding: 26px 26px 28px 0;
    border-bottom: 1px solid var(--seo-divider);
}

.seo-process li + li {
    padding-left: 26px;
    border-left: 1px solid var(--seo-divider);
}

.seo-process strong {
    display: block;
    margin-bottom: 12px;
    font-size: 18px;
}

.seo-process span {
    color: var(--seo-secondary);
}

.seo-evidence {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(300px, .75fr);
    gap: clamp(44px, 8vw, 110px);
    align-items: start;
}

.seo-evidence__links {
    margin: 0;
    padding: 0;
    border-top: 1px solid var(--seo-divider);
    list-style: none;
}

.seo-evidence__links li {
    border-bottom: 1px solid var(--seo-divider);
}

.seo-link {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 16px;
    padding: 20px 0;
    color: var(--seo-text);
    font-weight: 600;
    text-decoration: none;
}

.seo-link::after {
    content: "↗";
    color: var(--seo-brand);
}

.seo-link:hover {
    color: var(--seo-brand);
}

.seo-evidence__aside {
    padding: 30px;
    color: #fff;
    background: var(--seo-text);
}

.seo-evidence__aside h3 {
    margin: 0 0 16px;
    font-size: 24px;
    line-height: 1.25;
}

.seo-evidence__aside p {
    margin: 0 0 24px;
    color: #d7dde2;
}

.seo-device-params {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin: 0;
    border-top: 1px solid var(--seo-divider);
}

.seo-device-params__item {
    padding: 22px 24px 22px 0;
    border-bottom: 1px solid var(--seo-divider);
}

.seo-device-params__item:nth-child(even) {
    padding-left: 24px;
    border-left: 1px solid var(--seo-divider);
}

.seo-device-params dt {
    color: var(--seo-muted);
    font-size: 14px;
}

.seo-device-params dd {
    margin: 5px 0 0;
    font-size: 21px;
    font-weight: 650;
}

.seo-features {
    margin: 0;
    padding-left: 1.2em;
}

.seo-features li {
    max-width: 72ch;
    padding: 9px 0;
    color: var(--seo-secondary);
}

.seo-final {
    padding-block: 90px;
    color: #fff;
    background: var(--seo-brand);
}

.seo-final .seo-shell {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 40px;
    align-items: center;
}

.seo-final h2 {
    max-width: 20ch;
    margin: 0 0 12px;
    font-size: clamp(30px, 4vw, 46px);
    line-height: 1.15;
}

.seo-final p {
    max-width: 66ch;
    margin: 0;
    color: #f0dfe0;
}

.seo-final .seo-button {
    border-color: #fff;
    color: var(--seo-brand);
    background: #fff;
}

@media (prefers-reduced-motion: reduce) {
    .seo-button { transition: none; }
}

@media (max-width: 900px) {
    .seo-hero,
    .seo-section__intro,
    .seo-evidence {
        grid-template-columns: 1fr;
    }

    .seo-hero {
        gap: 44px;
        min-height: auto;
        padding-block: 56px 80px;
    }

    .seo-hero h1 { max-width: 17ch; }
    .seo-hero__visual,
    .seo-hero__visual img { min-height: 420px; }
    .seo-process { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .seo-process li:nth-child(3) { border-left: 0; padding-left: 0; }
    .seo-final .seo-shell { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
    .seo-shell { width: min(100% - 32px, 1180px); }
    .seo-breadcrumb { padding-top: 92px; }
    .seo-hero h1 { font-size: clamp(34px, 10vw, 42px); }
    html[lang="ru"] .seo-hero h1,
    html[lang="ar"] .seo-hero h1 { font-size: clamp(32px, 9vw, 40px); }
    .seo-hero__facts > div { grid-template-columns: 1fr; gap: 4px; }
    .seo-hero__visual,
    .seo-hero__visual img { min-height: 330px; }
    .seo-hero__visual--contain img { padding: 20px; }
    .seo-section { padding-block: 76px; }
    .seo-criteria__row { grid-template-columns: 1fr; gap: 8px; }
    .seo-process { grid-template-columns: 1fr; }
    .seo-process li,
    .seo-process li + li,
    .seo-process li:nth-child(3) {
        min-height: 0;
        padding: 22px 0;
        border-left: 0;
    }
    .seo-device-params { grid-template-columns: 1fr; }
    .seo-device-params__item,
    .seo-device-params__item:nth-child(even) {
        padding: 19px 0;
        border-left: 0;
    }
    .seo-final { padding-block: 72px; }
}

/* Semantic equipment pages: product dossier, separate from generic search topics. */
.seo-device-page {
    background: #f8f9f9;
}

.seo-device-page .seo-breadcrumb {
    padding-bottom: 18px;
}

.seo-device-hero {
    display: grid;
    grid-template-columns: minmax(0, .82fr) minmax(480px, 1.18fr);
    gap: clamp(44px, 6vw, 84px);
    align-items: center;
    min-height: 610px;
    padding-block: 34px 76px;
}

.seo-device-hero__copy {
    padding-block: 28px;
}

.seo-device-series {
    margin: 0 0 20px;
    color: var(--seo-brand);
    font-size: 15px;
    font-weight: 650;
}

.seo-device-hero h1 {
    max-width: 13ch;
    margin: 0 0 26px;
    color: var(--seo-text);
    font-size: clamp(36px, 3.7vw, 44px);
    font-weight: 620;
    letter-spacing: -.035em;
    line-height: 1.12;
    text-wrap: balance;
}

.seo-device-lead {
    max-width: 58ch;
    margin: 0 0 34px;
    color: var(--seo-secondary);
    font-size: clamp(17px, 1.55vw, 19px);
    line-height: 1.8;
}

.seo-device-stage {
    position: relative;
    min-height: 510px;
    margin: 0;
    overflow: hidden;
    background: #e9edef;
}

.seo-device-stage::after {
    position: absolute;
    inset-inline: 0;
    bottom: 0;
    height: 1px;
    background: var(--seo-divider);
    content: "";
}

.seo-device-stage img {
    display: block;
    width: 100%;
    height: 510px;
    padding: 40px 24px 28px;
    object-fit: contain;
}

.seo-device-overview,
.seo-device-features,
.seo-device-specs,
.seo-device-models,
.seo-device-evidence,
.seo-device-contact {
    padding-block: clamp(78px, 8vw, 112px);
}

.seo-device-overview {
    background: var(--seo-paper);
}

.seo-device-overview__grid {
    display: grid;
    grid-template-columns: minmax(0, .9fr) minmax(420px, 1.1fr);
    gap: clamp(58px, 9vw, 130px);
    align-items: start;
}

.seo-device-overview h2,
.seo-device-features h2,
.seo-device-section-head h2,
.seo-device-evidence h2,
.seo-device-contact h2 {
    max-width: 18ch;
    margin: 0;
    font-size: clamp(28px, 3.2vw, 38px);
    font-weight: 600;
    letter-spacing: -.025em;
    line-height: 1.2;
}

.seo-device-overview__grid > div:first-child > p {
    max-width: 62ch;
    margin: 24px 0 0;
    color: var(--seo-secondary);
    font-size: 18px;
    line-height: 1.9;
}

.seo-device-highlights h3 {
    margin: 0 0 18px;
    color: var(--seo-muted);
    font-size: 14px;
    font-weight: 560;
}

.seo-device-highlights dl {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin: 0;
    border-top: 2px solid var(--seo-text);
}

.seo-device-highlights dl > div {
    min-height: 116px;
    padding: 21px 22px 20px 0;
    border-bottom: 1px solid var(--seo-divider);
}

.seo-device-highlights dl > div:nth-child(even) {
    padding-inline: 22px 0;
    border-inline-start: 1px solid var(--seo-divider);
}

.seo-device-highlights dt {
    color: var(--seo-muted);
    font-size: 13px;
}

.seo-device-highlights dd {
    margin: 8px 0 0;
    color: var(--seo-text);
    font-size: clamp(20px, 2vw, 26px);
    font-weight: 620;
    line-height: 1.25;
}

.seo-device-features {
    background: var(--seo-surface);
}

.seo-device-features .seo-shell {
    display: grid;
    grid-template-columns: minmax(260px, .62fr) minmax(0, 1.38fr);
    gap: clamp(54px, 9vw, 132px);
    align-items: start;
}

.seo-device-features ul {
    margin: 0;
    padding: 0;
    border-top: 2px solid var(--seo-text);
    list-style: none;
}

.seo-device-features li {
    position: relative;
    padding: 24px 0 24px 34px;
    border-bottom: 1px solid var(--seo-divider);
    color: var(--seo-secondary);
    font-size: 17px;
    line-height: 1.75;
}

.seo-device-features li::before {
    position: absolute;
    inset-inline-start: 0;
    top: 31px;
    width: 16px;
    height: 2px;
    background: var(--seo-brand);
    content: "";
}

.seo-device-specs {
    background: var(--seo-paper);
}

.seo-device-section-head {
    margin-bottom: 54px;
}

.seo-device-section-head p {
    max-width: 68ch;
    margin: 18px 0 0;
    color: var(--seo-secondary);
}

.seo-device-spec-groups {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 70px;
}

.seo-device-spec-group {
    border-top: 2px solid var(--seo-text);
}

.seo-device-spec-group h3 {
    margin: 0;
    padding: 20px 0 18px;
    font-size: 19px;
    font-weight: 620;
}

.seo-device-spec-group dl {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1px;
    margin: 0;
    background: var(--seo-divider);
}

.seo-device-spec-group dl > div {
    min-height: 118px;
    padding: 20px;
    background: #f4f6f7;
}

.seo-device-spec-group dt {
    color: var(--seo-muted);
    font-size: 13px;
}

.seo-device-spec-group dd {
    margin: 10px 0 0;
    color: var(--seo-text);
    font-size: 19px;
    font-weight: 620;
    line-height: 1.4;
}

.seo-device-models {
    background: var(--seo-surface);
}

.seo-device-models__scroll {
    overflow-x: auto;
    border-top: 2px solid var(--seo-text);
    background: var(--seo-paper);
}

.seo-device-models table {
    width: 100%;
    min-width: 720px;
    border-collapse: collapse;
    text-align: start;
}

.seo-device-models th,
.seo-device-models td {
    padding: 19px 22px;
    border-inline-end: 1px solid var(--seo-divider);
    border-bottom: 1px solid var(--seo-divider);
    text-align: start;
    vertical-align: top;
}

.seo-device-models thead th {
    color: var(--seo-text);
    background: #e4e9eb;
    font-size: 15px;
    font-weight: 650;
}

.seo-device-models tbody th {
    width: 28%;
    color: var(--seo-secondary);
    font-weight: 560;
}

.seo-device-models td {
    color: var(--seo-text);
    font-weight: 560;
}

.seo-device-models .seo-device-models__category th {
    padding-block: 13px;
    color: var(--seo-brand);
    background: #f4f6f7;
    font-size: 13px;
    font-weight: 650;
}

.seo-device-evidence {
    background: var(--seo-paper);
}

.seo-device-evidence__grid {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(260px, .65fr);
    gap: clamp(56px, 9vw, 128px);
    align-items: start;
}

.seo-device-evidence p {
    max-width: 66ch;
    margin: 20px 0 30px;
    color: var(--seo-secondary);
}

.seo-device-evidence ul {
    margin: 0;
    padding: 0;
    border-top: 1px solid var(--seo-divider);
    list-style: none;
}

.seo-device-evidence aside {
    padding-top: 3px;
}

.seo-device-evidence aside h3 {
    margin: 0 0 18px;
    font-size: 19px;
}

.seo-device-evidence aside li {
    border-bottom: 1px solid var(--seo-divider);
}

.seo-device-evidence aside a {
    display: block;
    padding: 16px 0;
    color: var(--seo-text);
    font-weight: 560;
    text-decoration: none;
}

.seo-device-evidence aside a:hover,
.seo-device-evidence aside a:focus-visible {
    color: var(--seo-brand);
}

.seo-device-contact {
    background: #e5eaec;
}

.seo-device-contact .seo-shell {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 48px;
    align-items: center;
}

.seo-device-contact p {
    max-width: 68ch;
    margin: 16px 0 0;
    color: var(--seo-secondary);
}

html[dir="rtl"] .seo-device-stage img {
    transform: none;
}

@media (max-width: 900px) {
    .seo-device-hero,
    .seo-device-overview__grid,
    .seo-device-features .seo-shell,
    .seo-device-evidence__grid {
        grid-template-columns: 1fr;
    }

    .seo-device-hero {
        min-height: 0;
        padding-bottom: 72px;
    }

    .seo-device-stage,
    .seo-device-stage img {
        min-height: 430px;
        height: 430px;
    }

    .seo-device-overview__grid,
    .seo-device-features .seo-shell,
    .seo-device-evidence__grid {
        gap: 52px;
    }

    .seo-device-spec-groups {
        gap: 34px;
    }
}

@media (max-width: 680px) {
    .seo-device-hero {
        gap: 34px;
        padding-block: 20px 58px;
    }

    .seo-device-hero__copy {
        padding-block: 18px;
    }

    .seo-device-hero h1 {
        max-width: 16ch;
        font-size: clamp(34px, 10vw, 42px);
    }

    .seo-device-stage,
    .seo-device-stage img {
        min-height: 310px;
        height: 310px;
    }

    .seo-device-stage img {
        padding: 24px 10px 18px;
    }

    .seo-device-overview,
    .seo-device-features,
    .seo-device-specs,
    .seo-device-models,
    .seo-device-evidence,
    .seo-device-contact {
        padding-block: 72px;
    }

    .seo-device-highlights dl,
    .seo-device-spec-groups,
    .seo-device-spec-group dl,
    .seo-device-contact .seo-shell {
        grid-template-columns: 1fr;
    }

    .seo-device-highlights dl > div,
    .seo-device-highlights dl > div:nth-child(even) {
        min-height: 0;
        padding: 18px 0;
        border-inline-start: 0;
    }

    .seo-device-features li {
        padding-inline-start: 28px;
    }

    .seo-device-spec-groups {
        gap: 46px;
    }

    .seo-device-section-head {
        margin-bottom: 38px;
    }

    .seo-device-contact .seo-shell {
        gap: 30px;
    }
}