@font-face {
    font-family: 'Poppins';
    src: url('../fonts/Poppins-Regular.woff2');
    font-weight: normal;
}

:root {
    /*ui-scale-factor*/
    --rpx-75: clamp(0.75px, calc(0.026vw + 0.500px), 1px);
    --rpx-67: clamp(0.667px, calc(0.035vw + 0.334px), 1px);
    --rpx-50: clamp(.5px, 0.052vw, 1px);
    /*
    * 1px at 1920
    * 0.667px at 960
    */
    --rpx: var(--rpx-67);
    --wrapper-width: clamp(900px, calc(81.25vw + 120px), 1680px);
    --wrapper-margin: calc((100vw - var(--wrapper-width)) / 2);

    --serif-font: "Times New Roman", serif;
    --sans-serif-font: Abel, SourceHanSansCN, OpenSans, Arial, sans-serif;

    font-family: var(--sans-serif-font), serif;

    --theme-red: #ff0000;
    --theme-black: #272727;

    --header-height-max: calc(120 * var(--rpx-50));

    --header-height: var(--header-height-max);

    --no-header-100vh: calc(100vh - var(--header-height-max));
}

input,
textarea,
select {
    font-family: inherit;
}

* {
    box-sizing: border-box;
    /*transition-timing-function: cubic-bezier(0.15, 1, 0.336, 1) !important;*/
    transition-timing-function: cubic-bezier(.7, 0, .3, 1);
}

a {
    text-decoration: none;
    color: inherit;
    cursor: pointer;
}

p {
    margin-top: 0;
    margin-bottom: 0;
}

.desc p+p {
    margin-top: 1.25em;
}

html {
    color: var(--theme-black);
    /*
    *16px at 1920
    *14px at 960
    */
    font-size: calc(0.20833vw + 12px);
}

body {
    font-size: calc(0.20833vw + 12px);
    margin: 0;
    padding-right: 0 !important;
    position: relative;
}

sup {
    font-size: .5em;
    line-height: 1em;
    vertical-align: 0;
    transform: translateY(-80%);
    display: inline-block;
}

br.mobile {
    display: none;
}

@media (max-width: 750px) {
    br.mobile {
        display: block;
    }
}

.anchor {
    position: relative;
    top: calc(-1 * var(--header-height-max));
}

.wrapper {
    /* width: var(--wrapper-width); */
    padding-left: 80px;
    padding-right: 80px;
    margin-left: auto;
    margin-right: auto;
}

.site-header {
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    /* height: var(--header-height); */
    height: 85px;
    z-index: 600;
    transition: .3s;
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, .15);
    /* padding-left: calc(5.2083vw + -20px); */
    /* 80px @1920 → 30px @960 */
    /* padding-right: calc(5.2083vw + -20px); */
    /* 80px @1920 → 30px @960 */
    padding: 20px 80px;

    display: flex;
    align-items: center;
    justify-content: space-between;
}

.site-header .header-left,
.site-header .header-right {
    height: 100%;
}

.site-header .logo-left {
    width: auto;
    /* height: calc(60 * var(--rpx-50)); */
    height: 100%;
}

.site-header img {
    display: block;
    width: auto;
    height: 100%;
}

.site-header .logo-right {
    width: auto;
    /* height: calc(60 * var(--rpx-50)); */
    height: 100%;
}

body>section:first-of-type {
    padding-top: var(--header-height-max);
}

body>section,
body>.site-footer {
    position: relative;
    z-index: 200;
}

body {
    min-height: 100vh;

    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

.site-footer {
    margin-top: auto;
    margin-bottom: 0;
    justify-self: flex-end;

    color: #544747;
}

.site-footer .wrapper {
    border-top: 1px solid rgba(0, 0, 0, .15);
    padding-top: calc(60 * var(--rpx));
    padding-bottom: calc(40 * var(--rpx));

    display: flex;
    flex-direction: column;
    align-items: flex-end;
    text-align: right;
}

.breadcrumbs {
    font-size: calc(14em / 16);
    margin-bottom: 0;
    display: flex;
    padding-left: 0;
    color: rgb(0, 0, 0, .8);
    margin-top: 0;
    position: absolute;
    left: 80px;
    top: 110px;
    z-index: 999;
}

.breadcrumbs li {
    list-style: none;
    display: flex;
    align-items: center;
}

.breadcrumbs li.current {
    color: var(--theme-red);
}

.breadcrumbs a.no-link {
    cursor: text;
}

.breadcrumbs a.no-link:hover {
    color: inherit;
}

.breadcrumbs li .next-level {
    width: calc(5em / 14);
    height: calc(10em / 14);
    padding-left: calc(12em / 14);
    padding-right: calc(12em / 14);
    background: url("../images/lv/icon_angle_right_solid.svg") center/contain no-repeat;
}

.breadcrumbs li a:hover,
.breadcrumbs.light li a:hover {
    color: var(--theme-red);
}

.page-title {
    font-weight: bold;
    font-size: calc(68 * var(--rpx-50));
}

.page-back {
    position: absolute;
    z-index: 180;
    left: 0;
    bottom: 0;
    width: 100%;
}

.page-back .red {
    position: absolute;
    left: 0;
    bottom: 0;
    width: calc(714.2vw / 19.2);
    height: calc(442.3vw / 19.2);
    background: linear-gradient(to right bottom, #B80004 0%, #F20001 100%);
    clip-path: polygon(0 0, 100% 100%, 0 100%);
    z-index: 181;
}

.page-back .gray {
    position: absolute;
    right: 0;
    bottom: 0;
    aspect-ratio: 1556.6/923.3;
    width: calc(1556.6vw / 19.2);
    height: auto;
    background: #666;
    opacity: .2;
    clip-path: polygon(100% 0, 100% 100%, 0 100%);
    z-index: 182;
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: calc(12 * var(--rpx));
}

.site-footer a:hover {
    color: var(--theme-red);
}

.company-name {
    font-size: calc(20rem / 16);
    font-weight: bold;
}

.company-address {
    font-size: 1rem;
}

.company-contact {
    font-size: 1rem;
    display: flex;
    gap: 1.5em;
}

.footer-legal {
    display: flex;
    gap: 2em;
    margin-top: calc(40 * var(--rpx));
    line-height: 1.5em;
}

.footer-legal a {
    text-decoration: underline;
}

.icp-info {
    display: flex;
    gap: 1.5em;
}

.legal-links {
    display: flex;
    gap: 1.5em;
}

.section-title {
    padding-top: calc(60 * var(--rpx));
    font-size: calc(38 * var(--rpx));
    font-weight: bold;
    margin-bottom: calc(60 * var(--rpx));
    position: relative;
    margin-top: 0;
}

.title-decoration {
    width: 100%;
    height: calc(40 * var(--rpx));
    background: url("../images/lv/title_dec.svg") left/cover no-repeat;
    display: block;
    position: absolute;
    left: 0;
    top: 0;
}

.flex-box {
    display: flex;
    --gap: calc(48 * var(--rpx));
    --gap-x: var(--gap);
    --gap-y: var(--gap);
    --column: 3;
    --item-width: calc((100% - var(--gap-x) * (var(--column) - 1)) / var(--column));
    gap: var(--gap-y) var(--gap-x);
    flex-wrap: wrap;
    width: 100%;
}

.flex-box .list-item,
.flex-box .flex-item {
    width: var(--item-width);
    flex: 0 0 auto;
}


.flex-box .flex-item.fullwidth {
    width: 100%;
}

.btn-more {
    font-size: 1rem;
    width: calc(160rem / 16);
    height: calc(40rem / 16);
    border-radius: calc(20rem / 16);
    background-color: rgba(102, 102, 102, .2);

    display: flex;
    align-items: center;
    padding-left: calc(24em / 16);
    font-weight: bold;
    line-height: 1em;
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.btn-more i {
    width: calc(30em / 16);
    height: calc(30em / 16);
    border-radius: 50%;
    background-color: #fff;
    position: absolute;
    right: calc(5em / 16);
    top: calc(5em / 16);
    z-index: 210;
}

.btn-more span {
    position: relative;
    z-index: 210;
}

.btn-more i::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    margin: auto;
    background: url("../images/lv/icon_arr_right.svg") center/calc(10em / 16) calc(9em / 16) no-repeat;
}

.btn-more::after {
    content: "";
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: var(--theme-red);
    font-size: 1em;
    border-radius: calc(20rem / 16);
    transform: scale(0);
    transition: .2s;
}

.btn-more i.download::after {
    background: url("../images/lv/icon_download_stroke.svg") center/calc(8rem / 16) calc(12rem / 16) no-repeat;
}

.btn-more i.contact::after {
    background: url("../images/lv/icon_contact.svg") center/calc(16rem / 16) calc(16rem / 16) no-repeat;
}

.btn-more:hover {
    color: #fff;
    transition: .1s .1s;
    animation: btnMoreHovered .3s 0s cubic-bezier(0.63, 0.01, 0.15, 1) forwards;
}

@keyframes btnMoreHovered {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }

    100% {
        transform: scale(1);
    }
}

.btn-more.btn-contact::after {
    transform: scale(1);
}

.btn-more.btn-contact {
    color: #fff;
    background-color: #fff;
}

.btn-more.btn-contact.submitted {
    pointer-events: none;
    cursor: default;
    opacity: 0.8;
}

.btn-more i.tick::after {
    background: url("../images/lv/icon_tick.svg") center/1em auto no-repeat;
}

.btn-more:hover::after {
    transform: scale(1);
    transition: .3s cubic-bezier(0.15, 1, 0.336, 1);
}

.table-ctn {
    width: calc(100% + 12px);
    overflow: auto;
    margin-left: -6px;
    padding: 4px 6px 8px;
}

table.specs {
    width: 100%;
    border-collapse: collapse;
    border: none;
    text-align: center;
    box-shadow: 0 2px 6px rgba(0, 18, 35, 0.2);
}

table.specs th {
    background: linear-gradient(to right, rgba(255, 254.75, 254.75, 0.4) 0%, rgba(255, 254.75, 254.75, 0) 100%), rgba(102, 102, 102, 1);
    ;
    color: #fff;
}

table.specs td,
table.specs th {
    height: calc(45rem / 16);
    vertical-align: middle;
    padding-left: calc(30 * var(--rpx));
    padding-right: calc(30 * var(--rpx));
}

table.specs td {
    border: 1px solid #DFDFDF;
    position: relative;
}

table.specs td:last-of-type {
    border-right: none;
}

table.specs td:first-of-type {
    border-left: none;
}

table.specs tr:first-of-type td {
    border-top: none;
}

table.specs tr:last-of-type td {
    border-bottom: none;
}

table.specs tr {
    background-color: #F7F7F7;
}

table.specs tr.dark {
    background-color: #F3F3F3;
}

table.specs td.shadow::after {
    content: "";
    height: 100%;
    width: 6px;
    right: 0;
    top: 0;
    position: absolute;
    background: linear-gradient(to left, rgba(0, 18, 35, 0.1), rgba(0, 18, 35, 0.0));
}

table.specs tr td.light {
    background-color: #FFFFFF;
    color: #646464;
    font-family: Poppins, sans-serif;
}

table.specs tr.dark td.light {
    background-color: #FBFBFB;
}

table.specs .extra-padding {
    padding-top: calc(20 * var(--rpx));
    padding-bottom: calc(20 * var(--rpx));
}

table.stripe {
    width: 100%;
    border-top: 2px solid var(--theme-red);
    box-shadow: 0 2px 6px rgba(0, 18, 35, 0.2);
    border-collapse: collapse;
}

table.stripe td,
table.stripe th {
    padding: calc(20 * var(--rpx));
    text-align: center;
    border: 1px solid rgba(0, 0, 0, .1);
}

table.stripe thead th {
    background-color: #f4f4f4;
}

table.stripe thead th:first-child {
    text-align: left;
}

table.stripe tbody {
    position: relative;
}

table.stripe tbody::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    transform: translateY(-100%);
    background: linear-gradient(to top, rgba(0, 0, 0, .1), transparent);
}

table.stripe tbody td:first-child {
    text-align: left;
    padding-left: 25px;
}

table.stripe .arrow-icon {
    width: calc(7em / 16);
    height: calc(11em / 16);
    background: url("../images/lv/icon_angle_right.svg") center/contain no-repeat;
    display: inline-block;
    margin-right: .25em;
}

table.stripe .btn-download {
    line-height: calc(20em / 16);
}


table.stripe .btn-download:hover {
    color: var(--theme-red);
}

table.stripe .download-icon {
    width: calc(20em / 16);
    height: calc(20em / 16);
    background: url("../images/lv/icon_download.svg") center/contain no-repeat;
    display: inline-block;
    margin-left: .1em;
    vertical-align: middle;
    margin-top: -.2em;
}

table.stripe tbody td:last-child .handle {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10%;
    flex: 0 0 auto;
}

table.stripe tbody td:last-child .handle-item {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 5px;
    cursor: pointer;
    flex: 0 0 auto;
}

table.stripe tbody td:last-child .history-version {
    color: #0000ee;
    cursor: pointer;
}

table.stripe tbody tr:nth-child(odd) td {
    background-color: rgba(255, 255, 255, .9);
}

table.stripe tbody tr:nth-child(even) td {
    background-color: #f7f7f7;
}

table.stripe .handle-item:hover {
    color: var(--theme-red);
}

.backtop {
    position: fixed;
    bottom: 20px;
    right: 10px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: rgba(0, 0, 0, .3);
    display: flex;
    align-items: center;
    justify-content: center;
    visibility: hidden;
    opacity: 0;
    transition: .3s;
    cursor: pointer;
    z-index: 999;
}

.backtop:hover,
.more-products:hover {
    background-color: #f00;
}

.more-products {
    position: fixed;
    bottom: 80px;
    right: 10px;
    background-color: rgba(0, 0, 0, 1);
    width: 50px;
    padding: 10px 5px;
    color: #fff;
    cursor: pointer;
    z-index: 999;
    transition: .3s;
    font-size: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    line-height: 1.2;
    border-radius: 30px;
    gap: 5px;
}

@media (max-width: 1280px) {
    .footer-legal {
        display: flex;
        flex-direction: column-reverse;
        align-items: flex-end;
        gap: calc(20 * var(--rpx));
    }
}

@media only screen and (max-width: 980px) {
    .more-products {
        bottom: 65px;
        width: 35px;
        font-size: 10px;
    }

    .backtop {
        width: 35px;
        height: 35px;
    }

    .backtop img {
        width: 35%;
    }

    .logo-wrap {
        height: 65px;
        padding: 15px 0;
    }
}

@media (max-width: 960px) {
    :root {
        --wrapper-width: calc(95.2381vw + -14.2857px);
        /* 900px @960 → 700px @750 */
        ;
    }

    .site-header {
        /* padding-left: 30px;
        padding-right: 30px; */
        /* padding-left: 20px;
        padding-right: 20px; */
    }

    .breadcrumbs {
        /* left: 20px; */
        top: 90px;
    }

    table.specs,
    table.stripe {
        min-width: 900px;
    }

    table.specs td,
    table.specs th {
        padding-left: calc(25 * var(--rpx));
        padding-right: calc(25 * var(--rpx));
    }

    .page-back .gray {
        width: 85%;
    }
}

@media only screen and (max-width: 980px) {
    .site-header {
        height: 65px;
        padding-top: 15px;
        padding-bottom: 15px;
    }
}

@media (max-width: 780px) {
    .site-header {
        /* padding-left: 30px;
        padding-right: 30px; */
        padding-left: 20px;
        padding-right: 20px;
    }

    .breadcrumbs {
        left: 20px;
    }
}

@media (max-width: 750px) {
    :root {
        --rpx-50: calc(.86667vw / 8.28);
        --rpx-67: calc(1vw / 8.28);
        --rpx-75: calc(1.25vw / 8.28);
        --rpx: var(--rpx-67);

        font-size: calc(32 * var(--rpx));
        --header-height-min: calc(108 * var(--rpx));
        --header-height-max: calc(108 * var(--rpx));

        --wrapper-width: calc(768 * var(--rpx));
    }

    .wrapper {
        width: var(--wrapper-width);
        padding-left: 0;
        padding-right: 0;
    }


    .site-header .logo-left,
    .site-header .logo-right {
        /* height: calc(64 * var(--rpx)); */
        height: 100%;
    }

    .site-header {
        /* padding-left: calc(30 * var(--rpx));
        padding-right: calc(30 * var(--rpx)); */
        /* height: 70px; */
    }

    html,
    body {
        font-size: inherit;
    }

    .breadcrumbs {
        flex-wrap: wrap;
        line-height: 1.5em;
        gap: calc(10 * var(--rpx));
    }


    .title-decoration {
        height: calc(80 * var(--rpx));
    }

    .section-title {
        padding-top: calc(80 * var(--rpx));
        font-size: calc(28rem / 16);
    }

    .company-contact {
        display: flex;
        flex-direction: column;
        gap: calc(10 * var(--rpx));
    }

    .icp-info {
        display: flex;
        flex-direction: column;
        gap: calc(10 * var(--rpx));
    }



}