/* Start custom CSS for html, class: .elementor-element-c401bdc */.em-mobile-history {
    --mh-bg: #ffffff;
    --mh-bg-soft: #f3f6f8;
    --mh-bg-blue: #edf5fa;
    --mh-bg-warm: #fff5e8;
    --mh-text: #18242c;
    --mh-muted: #596871;
    --mh-border: #d9e3e8;
    --mh-blue: #246d8d;
    --mh-blue-dark: #153f53;
    --mh-cyan: #51a0ba;
    --mh-orange: #d47a2d;
    --mh-orange-dark: #914911;
    --mh-green: #39705a;
    --mh-red: #a53d34;
    --mh-dark: #162630;
    --mh-radius-sm: 10px;
    --mh-radius: 18px;
    --mh-radius-lg: 28px;
    --mh-shadow: 0 16px 42px rgba(21, 45, 58, 0.09);
    --mh-width: 1180px;

    width: 100%;
    overflow: hidden;
    color: var(--mh-text);
    background: var(--mh-bg);
    font-family: inherit;
    font-size: 17px;
    line-height: 1.68;
}

.em-mobile-history *,
.em-mobile-history *::before,
.em-mobile-history *::after {
    box-sizing: border-box;
}

.em-mobile-history h1,
.em-mobile-history h2,
.em-mobile-history h3,
.em-mobile-history p,
.em-mobile-history ul,
.em-mobile-history ol {
    margin-top: 0;
}

.em-mobile-history h1,
.em-mobile-history h2,
.em-mobile-history h3 {
    color: var(--mh-text);
    line-height: 1.18;
    letter-spacing: -0.025em;
}

.em-mobile-history h1 {
    max-width: 1060px;
    margin-bottom: 25px;
    font-size: clamp(36px, 5vw, 64px);
    font-weight: 820;
}

.em-mobile-history h2 {
    margin-bottom: 18px;
    font-size: clamp(29px, 4vw, 44px);
    font-weight: 800;
}

.em-mobile-history h3 {
    margin-bottom: 11px;
    font-size: 21px;
    font-weight: 750;
}

.em-mobile-history p:last-child,
.em-mobile-history ul:last-child,
.em-mobile-history ol:last-child {
    margin-bottom: 0;
}

.em-mobile-history a {
    color: inherit;
}

.em-mobile-history__container {
    position: relative;
    z-index: 1;
    width: min(100%, var(--mh-width));
    margin: 0 auto;
}

.em-mobile-history__hero {
    position: relative;
    padding: 82px 24px 70px;
    overflow: hidden;
    border-bottom: 1px solid var(--mh-border);
    background:
        radial-gradient(
            circle at 87% 16%,
            rgba(36, 109, 141, 0.2),
            transparent 33%
        ),
        radial-gradient(
            circle at 72% 96%,
            rgba(81, 160, 186, 0.16),
            transparent 29%
        ),
        linear-gradient(135deg, #fafcfd 0%, #eaf3f7 100%);
}

.em-mobile-history__hero::before {
    position: absolute;
    inset: 0 auto 0 0;
    width: 7px;
    background: var(--mh-blue);
    content: "";
}

.em-mobile-history__hero::after {
    position: absolute;
    top: -135px;
    right: -90px;
    width: 400px;
    height: 400px;
    border: 2px solid rgba(36, 109, 141, 0.1);
    border-radius: 50%;
    content: "";
}

.em-mobile-history__eyebrow {
    display: inline-flex;
    align-items: center;
    margin-bottom: 18px;
    padding: 8px 14px;
    border: 1px solid rgba(36, 109, 141, 0.27);
    border-radius: 999px;
    color: var(--mh-blue-dark);
    background: rgba(255, 255, 255, 0.8);
    font-size: 13px;
    font-weight: 800;
    line-height: 1.3;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.em-mobile-history__lead {
    max-width: 960px;
    margin-bottom: 18px;
    color: #2d404a;
    font-size: clamp(20px, 2.3vw, 25px);
    line-height: 1.48;
}

.em-mobile-history__hero-text {
    max-width: 940px;
    margin-bottom: 30px;
    color: var(--mh-muted);
}

.em-mobile-history__facts {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    max-width: 1060px;
    gap: 14px;
}

.em-mobile-history__facts > div {
    padding: 18px 20px;
    border: 1px solid rgba(24, 36, 44, 0.11);
    border-radius: var(--mh-radius-sm);
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(8px);
}

.em-mobile-history__facts strong,
.em-mobile-history__facts span {
    display: block;
}

.em-mobile-history__facts strong {
    margin-bottom: 4px;
    font-size: 19px;
    line-height: 1.3;
}

.em-mobile-history__facts span {
    color: var(--mh-muted);
    font-size: 14px;
    line-height: 1.45;
}

.em-mobile-history__nav {
    display: flex;
    width: min(calc(100% - 48px), var(--mh-width));
    margin: 22px auto 0;
    padding: 9px;
    gap: 5px;
    overflow-x: auto;
    border: 1px solid var(--mh-border);
    border-radius: 14px;
    background: #ffffff;
    box-shadow: 0 8px 25px rgba(21, 45, 58, 0.05);
    scrollbar-width: thin;
}

.em-mobile-history__nav a {
    flex: 0 0 auto;
    padding: 9px 13px;
    border-radius: 8px;
    color: #3c4e58;
    text-decoration: none;
    font-size: 14px;
    font-weight: 700;
    white-space: nowrap;
}

.em-mobile-history__nav a:hover {
    color: var(--mh-blue-dark);
    background: var(--mh-bg-blue);
}

.em-mobile-history__section {
    width: min(calc(100% - 48px), var(--mh-width));
    margin: 0 auto;
    padding: 76px 0;
    scroll-margin-top: 90px;
}

.em-mobile-history__section--intro {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(310px, 0.85fr);
    gap: 22px;
    padding-top: 42px;
    padding-bottom: 35px;
}

.em-mobile-history__section--soft,
.em-mobile-history__section--dark,
.em-mobile-history__section--sources {
    width: 100%;
    max-width: none;
    padding-right: max(24px, calc((100% - var(--mh-width)) / 2));
    padding-left: max(24px, calc((100% - var(--mh-width)) / 2));
}

.em-mobile-history__section--soft {
    background: var(--mh-bg-soft);
}

.em-mobile-history__section--dark {
    color: #e8f0f4;
    background:
        radial-gradient(
            circle at 88% 10%,
            rgba(36, 109, 141, 0.39),
            transparent 32%
        ),
        var(--mh-dark);
}

.em-mobile-history__section--sources {
    background: #f6f1e8;
}

.em-mobile-history__heading {
    max-width: 900px;
    margin-bottom: 36px;
}

.em-mobile-history__heading > span {
    display: block;
    margin-bottom: 9px;
    color: var(--mh-blue);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.065em;
    text-transform: uppercase;
}

.em-mobile-history__heading > p {
    color: var(--mh-muted);
    font-size: 18px;
}

.em-mobile-history__heading--light > span {
    color: #88c6da;
}

.em-mobile-history__heading--light h2,
.em-mobile-history__heading--light p {
    color: #ffffff;
}

.em-mobile-history__answer,
.em-mobile-history__note {
    padding: 29px;
    border-radius: var(--mh-radius);
}

.em-mobile-history__answer {
    border: 1px solid var(--mh-border);
    background: #ffffff;
    box-shadow: var(--mh-shadow);
}

.em-mobile-history__answer > span {
    display: block;
    margin-bottom: 9px;
    color: var(--mh-blue);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.em-mobile-history__answer h2 {
    font-size: clamp(27px, 3vw, 37px);
}

.em-mobile-history__note {
    border: 1px solid rgba(212, 122, 45, 0.38);
    background: var(--mh-bg-warm);
}

.em-mobile-history__note strong {
    display: block;
    margin-bottom: 10px;
    color: var(--mh-orange-dark);
    font-size: 23px;
    line-height: 1.25;
}

.em-mobile-history__network-chain {
    display: grid;
    grid-template-columns:
        minmax(0, 1fr) auto
        minmax(0, 1fr) auto
        minmax(0, 1fr) auto
        minmax(0, 1fr) auto
        minmax(0, 1fr);
    gap: 9px;
    align-items: center;
}

.em-mobile-history__network-chain article {
    min-height: 220px;
    padding: 22px;
    border: 1px solid var(--mh-border);
    border-radius: var(--mh-radius);
    background: #ffffff;
}

.em-mobile-history__network-chain article > span {
    display: inline-flex;
    width: 38px;
    height: 38px;
    align-items: center;
    justify-content: center;
    margin-bottom: 15px;
    border-radius: 50%;
    color: #ffffff;
    background: var(--mh-blue);
    font-size: 12px;
    font-weight: 800;
}

.em-mobile-history__network-chain h3 {
    font-size: 18px;
}

.em-mobile-history__network-chain p {
    color: var(--mh-muted);
    font-size: 14px;
}

.em-mobile-history__chain-arrow {
    color: var(--mh-blue);
    font-size: 24px;
    font-weight: 800;
}

.em-mobile-history__network-grid,
.em-mobile-history__advanced-grid,
.em-mobile-history__coexist-grid,
.em-mobile-history__home-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 17px;
    margin-top: 23px;
}

.em-mobile-history__network-grid article,
.em-mobile-history__advanced-grid article,
.em-mobile-history__coexist-grid article,
.em-mobile-history__home-grid article {
    padding: 24px;
    border: 1px solid var(--mh-border);
    border-radius: var(--mh-radius);
    background: #ffffff;
}

.em-mobile-history__network-grid h3,
.em-mobile-history__advanced-grid h3,
.em-mobile-history__coexist-grid h3,
.em-mobile-history__home-grid h3 {
    font-size: 19px;
}

.em-mobile-history__network-grid p,
.em-mobile-history__advanced-grid p,
.em-mobile-history__coexist-grid p,
.em-mobile-history__home-grid p {
    color: var(--mh-muted);
    font-size: 15px;
}

.em-mobile-history__network-note,
.em-mobile-history__speed-warning,
.em-mobile-history__generation-note,
.em-mobile-history__advanced-note,
.em-mobile-history__satellite-note,
.em-mobile-history__coexist-note,
.em-mobile-history__home-note {
    margin-top: 23px;
    padding: 25px 27px;
    border-left: 6px solid var(--mh-orange);
    border-radius: 0 var(--mh-radius) var(--mh-radius) 0;
    background: var(--mh-bg-warm);
}

.em-mobile-history__network-note strong,
.em-mobile-history__speed-warning strong,
.em-mobile-history__generation-note strong,
.em-mobile-history__advanced-note strong,
.em-mobile-history__satellite-note strong,
.em-mobile-history__coexist-note strong,
.em-mobile-history__home-note strong {
    display: block;
    margin-bottom: 7px;
    color: var(--mh-orange-dark);
    font-size: 21px;
}

.em-mobile-history__timeline {
    position: relative;
    display: grid;
    gap: 14px;
    padding-left: 30px;
}

.em-mobile-history__timeline::before {
    position: absolute;
    top: 18px;
    bottom: 18px;
    left: 9px;
    width: 3px;
    border-radius: 999px;
    background: var(--mh-blue);
    content: "";
}

.em-mobile-history__timeline article {
    position: relative;
    display: grid;
    grid-template-columns: 120px minmax(0, 1fr);
    gap: 22px;
    padding: 23px;
    border: 1px solid var(--mh-border);
    border-radius: var(--mh-radius);
    background: #ffffff;
}

.em-mobile-history__timeline article::before {
    position: absolute;
    top: 31px;
    left: -29px;
    width: 17px;
    height: 17px;
    border: 4px solid #ffffff;
    border-radius: 50%;
    background: var(--mh-blue);
    box-shadow: 0 0 0 2px var(--mh-blue);
    content: "";
}

.em-mobile-history__timeline time {
    color: var(--mh-blue);
    font-size: 23px;
    font-weight: 820;
}

.em-mobile-history__timeline h3 {
    margin-bottom: 6px;
    font-size: 20px;
}

.em-mobile-history__timeline p {
    color: var(--mh-muted);
}

.em-mobile-history__table-wrap {
    width: 100%;
    overflow-x: auto;
    border: 1px solid var(--mh-border);
    border-radius: var(--mh-radius);
    background: #ffffff;
    box-shadow: 0 10px 30px rgba(21, 45, 58, 0.05);
}

.em-mobile-history__table {
    width: 100%;
    min-width: 1020px;
    border-collapse: collapse;
    font-size: 15px;
}

.em-mobile-history__table th,
.em-mobile-history__table td {
    padding: 17px 18px;
    border-right: 1px solid var(--mh-border);
    border-bottom: 1px solid var(--mh-border);
    text-align: left;
    vertical-align: top;
}

.em-mobile-history__table th:last-child,
.em-mobile-history__table td:last-child {
    border-right: 0;
}

.em-mobile-history__table tbody tr:last-child th,
.em-mobile-history__table tbody tr:last-child td {
    border-bottom: 0;
}

.em-mobile-history__table thead th {
    color: #ffffff;
    background: var(--mh-dark);
    font-size: 14px;
}

.em-mobile-history__table tbody th {
    width: 9%;
    color: var(--mh-blue-dark);
    background: var(--mh-bg-blue);
    font-size: 18px;
}

.em-mobile-history__section--generation {
    padding-top: 58px;
    padding-bottom: 58px;
}

.em-mobile-history__generation-heading {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 27px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--mh-border);
}

.em-mobile-history__generation-heading > span {
    color: var(--mh-blue);
    font-size: 14px;
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.em-mobile-history__generation-heading > strong {
    color: var(--mh-blue);
    font-size: clamp(52px, 8vw, 96px);
    line-height: 0.8;
    letter-spacing: -0.06em;
}

.em-mobile-history__generation-heading--light {
    border-color: rgba(255, 255, 255, 0.15);
}

.em-mobile-history__generation-heading--light > span {
    color: #8bc8dc;
}

.em-mobile-history__generation-heading--light > strong {
    color: #ffffff;
}

.em-mobile-history__generation-content {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 28px;
}

.em-mobile-history__generation-content > div:first-child p {
    color: var(--mh-muted);
    font-size: 18px;
}

.em-mobile-history__generation-features,
.em-mobile-history__architecture {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 15px;
}

.em-mobile-history__generation-features article,
.em-mobile-history__architecture article {
    padding: 23px;
    border: 1px solid var(--mh-border);
    border-radius: var(--mh-radius);
    background: #ffffff;
}

.em-mobile-history__generation-features h3,
.em-mobile-history__architecture h3 {
    font-size: 19px;
}

.em-mobile-history__generation-features p,
.em-mobile-history__architecture p {
    color: var(--mh-muted);
    font-size: 15px;
}

.em-mobile-history__generation-content--light h2 {
    color: #ffffff;
}

.em-mobile-history__generation-content--light > div:first-child p {
    color: #d5e2e7;
}

.em-mobile-history__generation-features--dark article {
    border-color: rgba(255, 255, 255, 0.14);
    background: rgba(255, 255, 255, 0.055);
}

.em-mobile-history__generation-features--dark h3 {
    color: #ffffff;
}

.em-mobile-history__generation-features--dark p {
    color: #cbd9df;
}

.em-mobile-history__dark-note,
.em-mobile-history__six-warning,
.em-mobile-history__wifi-note {
    margin-top: 23px;
    padding: 25px 27px;
    border: 1px solid rgba(212, 122, 45, 0.43);
    border-radius: var(--mh-radius);
    background: rgba(212, 122, 45, 0.1);
}

.em-mobile-history__dark-note strong,
.em-mobile-history__six-warning strong,
.em-mobile-history__wifi-note strong {
    display: block;
    margin-bottom: 7px;
    color: #f0bd8d;
    font-size: 21px;
}

.em-mobile-history__dark-note p,
.em-mobile-history__six-warning p,
.em-mobile-history__wifi-note p {
    color: #dce6ea;
}

.em-mobile-history__architecture article > span,
.em-mobile-history__five-use-grid article > span,
.em-mobile-history__six-scenarios article > span {
    display: inline-flex;
    margin-bottom: 12px;
    padding: 7px 10px;
    border-radius: 999px;
    color: #ffffff;
    background: var(--mh-blue);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.04em;
}

.em-mobile-history__five-use-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 17px;
    margin-top: 23px;
}

.em-mobile-history__five-use-grid article {
    padding: 25px;
    border: 1px solid rgba(36, 109, 141, 0.25);
    border-radius: var(--mh-radius);
    background: var(--mh-bg-blue);
}

.em-mobile-history__five-use-grid h3 {
    color: var(--mh-blue-dark);
    font-size: 20px;
}

.em-mobile-history__five-use-grid p {
    color: var(--mh-muted);
}

.em-mobile-history__five-myth {
    margin-top: 23px;
    padding: 27px;
    border: 1px solid rgba(165, 61, 52, 0.3);
    border-radius: var(--mh-radius);
    background: #fff2f0;
}

.em-mobile-history__five-myth strong {
    display: block;
    margin-bottom: 7px;
    color: var(--mh-red);
    font-size: 22px;
}

.em-mobile-history__six-status {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.em-mobile-history__six-status > div {
    padding: 28px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: var(--mh-radius);
    background: rgba(255, 255, 255, 0.055);
}

.em-mobile-history__six-status strong {
    display: block;
    margin-bottom: 12px;
    color: #ffffff;
    font-size: 22px;
}

.em-mobile-history__six-status ul {
    margin: 0;
    padding-left: 21px;
}

.em-mobile-history__six-status li {
    margin-bottom: 8px;
    color: #dce6ea;
}

.em-mobile-history__six-scenarios {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 17px;
    margin-top: 23px;
}

.em-mobile-history__six-scenarios article {
    padding: 24px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: var(--mh-radius);
    background: rgba(255, 255, 255, 0.055);
}

.em-mobile-history__six-scenarios h3 {
    color: #ffffff;
    font-size: 19px;
}

.em-mobile-history__six-scenarios p {
    color: #cbd9df;
    font-size: 15px;
}

.em-mobile-history__satellite-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 17px;
}

.em-mobile-history__satellite-grid article {
    padding: 25px;
    border: 1px solid var(--mh-border);
    border-radius: var(--mh-radius);
    background: #ffffff;
}

.em-mobile-history__satellite-grid h3 {
    font-size: 19px;
}

.em-mobile-history__satellite-grid p {
    color: var(--mh-muted);
    font-size: 15px;
}

.em-mobile-history__speed-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 17px;
}

.em-mobile-history__speed-grid article {
    padding: 23px;
    border: 1px solid var(--mh-border);
    border-radius: var(--mh-radius);
    background: #ffffff;
}

.em-mobile-history__speed-grid article > span {
    display: inline-flex;
    width: 39px;
    height: 39px;
    align-items: center;
    justify-content: center;
    margin-bottom: 15px;
    border-radius: 50%;
    color: #ffffff;
    background: var(--mh-blue);
    font-size: 12px;
    font-weight: 800;
}

.em-mobile-history__speed-grid h3 {
    font-size: 18px;
}

.em-mobile-history__speed-grid p {
    color: var(--mh-muted);
    font-size: 14px;
}

.em-mobile-history__parameters {
    margin-top: 23px;
    padding: 27px;
    border: 1px solid rgba(36, 109, 141, 0.26);
    border-radius: var(--mh-radius);
    background: var(--mh-bg-blue);
}

.em-mobile-history__parameters h3 {
    color: var(--mh-blue-dark);
    font-size: 22px;
}

.em-mobile-history__parameters > div {
    display: flex;
    flex-wrap: wrap;
    gap: 9px;
}

.em-mobile-history__parameters span {
    padding: 9px 12px;
    border: 1px solid rgba(36, 109, 141, 0.2);
    border-radius: 999px;
    color: var(--mh-blue-dark);
    background: #ffffff;
    font-size: 14px;
    font-weight: 700;
}

.em-mobile-history__compare {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
}

.em-mobile-history__compare article {
    padding: 30px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: var(--mh-radius);
    background: rgba(255, 255, 255, 0.055);
}

.em-mobile-history__compare article > span {
    display: block;
    margin-bottom: 9px;
    color: #88c6da;
    font-size: 13px;
    font-weight: 800;
    text-transform: uppercase;
}

.em-mobile-history__compare h3 {
    color: #ffffff;
    font-size: 25px;
}

.em-mobile-history__compare ul {
    margin: 0;
    padding-left: 21px;
}

.em-mobile-history__compare li {
    margin-bottom: 8px;
    color: #dce6ea;
}

.em-mobile-history__router-chain {
    margin-top: 23px;
    padding: 27px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: var(--mh-radius);
    background: rgba(255, 255, 255, 0.055);
}

.em-mobile-history__router-chain > strong {
    display: block;
    margin-bottom: 15px;
    color: #ffffff;
    font-size: 21px;
}

.em-mobile-history__router-chain > div {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
}

.em-mobile-history__router-chain span {
    padding: 10px 13px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 8px;
    color: #dce6ea;
    background: rgba(255, 255, 255, 0.06);
    font-weight: 700;
}

.em-mobile-history__router-chain b {
    color: #88c6da;
    font-size: 22px;
}

.em-mobile-history__myths {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 17px;
}

.em-mobile-history__myths article {
    min-height: 225px;
    padding: 23px;
    border: 1px solid var(--mh-border);
    border-radius: var(--mh-radius);
    background: #ffffff;
}

.em-mobile-history__myths article > span {
    display: inline-flex;
    margin-bottom: 15px;
    padding: 6px 9px;
    border-radius: 999px;
    color: #ffffff;
    background: var(--mh-orange);
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
}

.em-mobile-history__myths h3 {
    font-size: 18px;
}

.em-mobile-history__myths p {
    color: var(--mh-muted);
    font-size: 14px;
}

.em-mobile-history__source-links {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.em-mobile-history__source-links a {
    display: block;
    padding: 24px;
    border: 1px solid rgba(112, 84, 45, 0.18);
    border-radius: var(--mh-radius);
    text-decoration: none;
    background: rgba(255, 255, 255, 0.75);
}

.em-mobile-history__source-links strong,
.em-mobile-history__source-links span {
    display: block;
}

.em-mobile-history__source-links strong {
    margin-bottom: 7px;
    color: #604a23;
    font-size: 18px;
}

.em-mobile-history__source-links span {
    color: #675f54;
    font-size: 14px;
}

.em-mobile-history__faq {
    display: grid;
    max-width: 980px;
    gap: 12px;
}

.em-mobile-history__faq details {
    overflow: hidden;
    border: 1px solid var(--mh-border);
    border-radius: var(--mh-radius-sm);
    background: #ffffff;
}

.em-mobile-history__faq details[open] {
    border-color: rgba(36, 109, 141, 0.42);
    box-shadow: 0 10px 28px rgba(21, 45, 58, 0.06);
}

.em-mobile-history__faq summary {
    position: relative;
    padding: 20px 58px 20px 22px;
    cursor: pointer;
    font-size: 18px;
    font-weight: 750;
    line-height: 1.4;
    list-style: none;
}

.em-mobile-history__faq summary::-webkit-details-marker {
    display: none;
}

.em-mobile-history__faq summary::after {
    position: absolute;
    top: 50%;
    right: 20px;
    display: flex;
    width: 31px;
    height: 31px;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: var(--mh-blue-dark);
    background: var(--mh-bg-blue);
    font-size: 22px;
    font-weight: 500;
    transform: translateY(-50%);
    content: "+";
}

.em-mobile-history__faq details[open] summary::after {
    content: "−";
}

.em-mobile-history__faq details > div {
    padding: 0 22px 22px;
    color: var(--mh-muted);
}

.em-mobile-history__related {
    padding-top: 37px;
}

.em-mobile-history__related-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.em-mobile-history__related-grid a {
    display: block;
    padding: 24px;
    border: 1px solid var(--mh-border);
    border-radius: var(--mh-radius);
    text-decoration: none;
    background: #ffffff;
    transition:
        transform 0.18s ease,
        border-color 0.18s ease,
        box-shadow 0.18s ease;
}

.em-mobile-history__related-grid a:hover {
    transform: translateY(-3px);
    border-color: rgba(36, 109, 141, 0.44);
    box-shadow: var(--mh-shadow);
}

.em-mobile-history__related-grid strong,
.em-mobile-history__related-grid span {
    display: block;
}

.em-mobile-history__related-grid strong {
    margin-bottom: 7px;
    font-size: 18px;
}

.em-mobile-history__related-grid span {
    color: var(--mh-muted);
    font-size: 14px;
}

.em-mobile-history__cta {
    padding: 76px 24px;
    color: #ffffff;
    background:
        radial-gradient(
            circle at 88% 12%,
            rgba(81, 160, 186, 0.28),
            transparent 32%
        ),
        var(--mh-blue-dark);
}

.em-mobile-history__cta-inner {
    width: min(100%, 960px);
    margin: 0 auto;
}

.em-mobile-history__cta .em-mobile-history__eyebrow {
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.28);
    background: rgba(255, 255, 255, 0.08);
}

.em-mobile-history__cta h2 {
    color: #ffffff;
}

.em-mobile-history__cta p {
    max-width: 850px;
    color: #d9e7ed;
    font-size: 18px;
}

.em-mobile-history__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 26px;
}

.em-mobile-history__button {
    display: inline-flex;
    min-height: 50px;
    align-items: center;
    justify-content: center;
    padding: 13px 21px;
    border: 1px solid transparent;
    border-radius: 10px;
    text-decoration: none;
    font-size: 16px;
    font-weight: 750;
    line-height: 1.35;
    transition:
        transform 0.18s ease,
        background-color 0.18s ease,
        border-color 0.18s ease;
}

.em-mobile-history__button:hover {
    transform: translateY(-2px);
}

.em-mobile-history__button--primary {
    color: var(--mh-blue-dark);
    background: #ffffff;
}

.em-mobile-history__button--primary:hover {
    color: var(--mh-blue-dark);
    background: var(--mh-bg-blue);
}

.em-mobile-history__button--secondary {
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.45);
    background: transparent;
}

.em-mobile-history__button--secondary:hover {
    color: #ffffff;
    border-color: #ffffff;
    background: rgba(255, 255, 255, 0.07);
}

@media (max-width: 1100px) {
    .em-mobile-history__facts,
    .em-mobile-history__network-grid,
    .em-mobile-history__advanced-grid,
    .em-mobile-history__satellite-grid,
    .em-mobile-history__coexist-grid,
    .em-mobile-history__speed-grid,
    .em-mobile-history__home-grid,
    .em-mobile-history__myths,
    .em-mobile-history__source-links,
    .em-mobile-history__related-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .em-mobile-history__network-chain {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .em-mobile-history__chain-arrow {
        display: none;
    }
}

@media (max-width: 860px) {
    .em-mobile-history {
        font-size: 16px;
    }

    .em-mobile-history__hero {
        padding-top: 58px;
        padding-bottom: 54px;
    }

    .em-mobile-history__section--intro,
    .em-mobile-history__generation-content,
    .em-mobile-history__six-status,
    .em-mobile-history__compare {
        grid-template-columns: 1fr;
    }

    .em-mobile-history__five-use-grid,
    .em-mobile-history__six-scenarios {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .em-mobile-history__section {
        padding-top: 58px;
        padding-bottom: 58px;
    }

    .em-mobile-history__section--intro {
        padding-top: 32px;
        padding-bottom: 27px;
    }
}

@media (max-width: 680px) {
    .em-mobile-history__hero {
        padding-right: 17px;
        padding-left: 21px;
    }

    .em-mobile-history__hero::before {
        width: 5px;
    }

    .em-mobile-history h1 {
        font-size: 34px;
    }

    .em-mobile-history h2 {
        font-size: 29px;
    }

    .em-mobile-history__lead {
        font-size: 19px;
    }

    .em-mobile-history__nav {
        width: calc(100% - 28px);
        margin-top: 14px;
    }

    .em-mobile-history__section {
        width: calc(100% - 32px);
    }

    .em-mobile-history__section--soft,
    .em-mobile-history__section--dark,
    .em-mobile-history__section--sources {
        width: 100%;
        padding-right: 16px;
        padding-left: 16px;
    }

    .em-mobile-history__facts,
    .em-mobile-history__network-chain,
    .em-mobile-history__network-grid,
    .em-mobile-history__generation-features,
    .em-mobile-history__architecture,
    .em-mobile-history__five-use-grid,
    .em-mobile-history__advanced-grid,
    .em-mobile-history__six-scenarios,
    .em-mobile-history__satellite-grid,
    .em-mobile-history__coexist-grid,
    .em-mobile-history__speed-grid,
    .em-mobile-history__home-grid,
    .em-mobile-history__myths,
    .em-mobile-history__source-links,
    .em-mobile-history__related-grid {
        grid-template-columns: 1fr;
    }

    .em-mobile-history__answer,
    .em-mobile-history__note {
        padding: 21px;
    }

    .em-mobile-history__timeline {
        padding-left: 24px;
    }

    .em-mobile-history__timeline article {
        grid-template-columns: 1fr;
        gap: 8px;
        padding: 20px;
    }

    .em-mobile-history__timeline article::before {
        left: -24px;
    }

    .em-mobile-history__timeline time {
        font-size: 21px;
    }

    .em-mobile-history__generation-heading {
        align-items: center;
    }

    .em-mobile-history__generation-heading > strong {
        font-size: 56px;
    }

    .em-mobile-history__router-chain > div {
        display: grid;
        grid-template-columns: 1fr;
    }

    .em-mobile-history__router-chain b {
        transform: rotate(90deg);
        text-align: center;
    }

    .em-mobile-history__myths article {
        min-height: auto;
    }

    .em-mobile-history__actions {
        display: grid;
        grid-template-columns: 1fr;
    }

    .em-mobile-history__button {
        width: 100%;
    }

    .em-mobile-history__cta {
        padding: 58px 17px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .em-mobile-history__button,
    .em-mobile-history__related-grid a {
        transition: none;
    }

    .em-mobile-history__button:hover,
    .em-mobile-history__related-grid a:hover {
        transform: none;
    }
}/* End custom CSS */