:root {
  --lh-blue: #087fce;
  --lh-blue-deep: #063b75;
  --lh-cyan: #18b7dc;
  --lh-teal: #0d9f92;
  --lh-ink: #08111f;
  --lh-muted: #667386;
  --lh-line: #dce3ea;
  --lh-surface: #f4f7fa;
  --lh-white: #ffffff;
  --lh-max: 1480px;
}

@media screen and (max-width: 700px) {
  .loong-home {
    display: none !important;
  }
}

@media screen and (min-width: 701px) {
  html {
    scroll-behavior: smooth;
  }

  .loong-home,
  .loong-home * {
    box-sizing: border-box;
  }

  .loong-home {
    width: 100%;
    overflow: hidden;
    background: var(--lh-white);
    color: var(--lh-ink);
    font-family: Poppins, Arial, sans-serif;
  }

  .loong-home img {
    display: block;
    max-width: 100%;
  }

  .lh-shell {
    width: min(calc(100% - 72px), var(--lh-max));
    margin: 0 auto;
  }

  .lh-section {
    padding: 118px 0;
  }

  .lh-hero {
    position: relative;
    height: 100vh;
    min-height: 720px;
    max-height: none;
    overflow: hidden;
    background: #07111e;
    color: var(--lh-white);
  }

  .lh-hero-media,
  .lh-hero-shade {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
  }

  .lh-hero-media {
    object-fit: cover;
    object-position: center;
    transform: scale(1.015);
  }

  .lh-hero-shade {
    background:
      linear-gradient(90deg, rgba(3, 10, 20, 0.98) 0%, rgba(4, 15, 29, 0.91) 31%, rgba(5, 19, 35, 0.44) 53%, rgba(4, 15, 28, 0.08) 75%),
      linear-gradient(0deg, rgba(3, 10, 18, 0.72) 0%, transparent 38%);
  }

  .lh-hero-inner {
    position: relative;
    z-index: 2;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    padding-top: 154px;
    padding-bottom: 146px;
  }

  .lh-hero-copy {
    width: min(620px, 48%);
  }

  .lh-kicker,
  .lh-section-icon {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 30px;
    color: var(--lh-cyan);
    font-size: 13px;
    font-weight: 700;
    line-height: 1.3;
    text-transform: uppercase;
  }

  .lh-kicker i,
  .lh-section-icon i {
    width: 34px;
    height: 34px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid currentColor;
    border-radius: 50%;
    font-size: 17px;
  }

  .lh-kicker i {
    display: none;
  }

  .lh-hero h1 {
    margin: 0;
    color: var(--lh-white);
    font-size: 60px;
    font-weight: 700;
    line-height: 1.06;
    letter-spacing: 0;
  }

  .lh-hero-copy > p {
    max-width: 590px;
    margin: 26px 0 0;
    color: rgba(255, 255, 255, 0.76);
    font-size: 17px;
    line-height: 1.8;
  }

  .lh-hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 32px;
  }

  .lh-button {
    min-height: 54px;
    padding: 0 24px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    border: 1px solid transparent;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 700;
    text-decoration: none;
    transition: transform 180ms ease, background 180ms ease, border-color 180ms ease, color 180ms ease;
  }

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

  .lh-button-primary {
    background: var(--lh-blue);
    color: var(--lh-white);
  }

  .lh-button-primary:hover {
    background: #0697d8;
    color: var(--lh-white);
  }

  .lh-button-ghost {
    border-color: rgba(255, 255, 255, 0.42);
    background: rgba(7, 17, 31, 0.34);
    color: var(--lh-white);
    backdrop-filter: blur(8px);
  }

  .lh-button-ghost:hover {
    border-color: var(--lh-white);
    background: rgba(255, 255, 255, 0.1);
    color: var(--lh-white);
  }

  .lh-hero-proof {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 30px;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    border-top: 1px solid rgba(255, 255, 255, 0.18);
  }

  .lh-hero-proof > div {
    min-height: 76px;
    padding: 20px 30px 0;
    border-left: 1px solid rgba(255, 255, 255, 0.16);
  }

  .lh-hero-proof > div:first-child {
    padding-left: 0;
    border-left: 0;
  }

  .lh-hero-proof strong,
  .lh-hero-proof span {
    display: block;
  }

  .lh-hero-proof strong {
    color: var(--lh-white);
    font-size: 22px;
    line-height: 1.2;
  }

  .lh-hero-proof span {
    margin-top: 4px;
    color: rgba(255, 255, 255, 0.58);
    font-size: 11px;
    line-height: 1.4;
    text-transform: uppercase;
  }

  .lh-scroll-cue {
    position: absolute;
    right: 38px;
    bottom: 38px;
    z-index: 3;
    display: flex;
    align-items: center;
    gap: 12px;
    color: rgba(255, 255, 255, 0.72);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    writing-mode: vertical-rl;
  }

  .lh-scroll-cue i {
    font-size: 19px;
    animation: lh-bounce 1.8s ease-in-out infinite;
  }

  @keyframes lh-bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(6px); }
  }

  .lh-section-head {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(340px, 0.75fr);
    gap: 90px;
    align-items: end;
    margin-bottom: 54px;
  }

  .lh-section-head h2,
  .lh-solution-copy h2 {
    margin: 0;
    color: var(--lh-ink);
    font-size: 45px;
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: 0;
  }

  .lh-section-head .lh-section-icon,
  .lh-solution-copy .lh-section-icon {
    margin-bottom: 18px;
    color: var(--lh-blue);
  }

  .lh-head-aside p {
    margin: 0 0 18px;
    color: var(--lh-muted);
    font-size: 15px;
    line-height: 1.75;
  }

  .lh-head-aside a,
  .lh-text-link {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    color: var(--lh-blue-deep);
    font-size: 14px;
    font-weight: 700;
    text-decoration: none;
  }

  .lh-head-aside a:hover,
  .lh-text-link:hover {
    color: var(--lh-blue);
  }

  .lh-category-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    border-top: 1px solid var(--lh-line);
    border-left: 1px solid var(--lh-line);
  }

  .lh-category-card {
    min-width: 0;
    display: block;
    border-right: 1px solid var(--lh-line);
    border-bottom: 1px solid var(--lh-line);
    background: var(--lh-white);
    color: var(--lh-ink);
    text-decoration: none;
    transition: background 200ms ease, box-shadow 200ms ease;
  }

  .lh-category-card:hover {
    position: relative;
    z-index: 2;
    background: #f9fbfd;
    box-shadow: 0 18px 46px rgba(6, 35, 69, 0.12);
  }

  .lh-category-image {
    height: 190px;
    overflow: hidden;
    background: #eef2f6;
  }

  .lh-category-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 400ms ease;
  }

  .lh-category-card:hover .lh-category-image img {
    transform: scale(1.045);
  }

  .lh-category-body {
    position: relative;
    min-height: 132px;
    padding: 24px 54px 22px 22px;
  }

  .lh-category-index {
    display: block;
    margin-bottom: 12px;
    color: var(--lh-blue);
    font-size: 11px;
    font-weight: 800;
  }

  .lh-category-body h3 {
    margin: 0;
    color: var(--lh-ink);
    font-size: 16px;
    font-weight: 700;
    line-height: 1.35;
  }

  .lh-category-count {
    display: block;
    margin-top: 8px;
    color: var(--lh-muted);
    font-size: 12px;
  }

  .lh-category-body > i {
    position: absolute;
    right: 22px;
    top: 28px;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--lh-line);
    border-radius: 50%;
    color: var(--lh-blue-deep);
  }

  .lh-category-card:hover .lh-category-body > i {
    border-color: var(--lh-blue);
    background: var(--lh-blue);
    color: var(--lh-white);
  }

  .lh-factory {
    background: var(--lh-ink);
    color: var(--lh-white);
  }

  .lh-section-head-light h2 {
    color: var(--lh-white);
  }

  .lh-section-head-light .lh-section-icon {
    color: var(--lh-cyan);
  }

  .lh-section-head-light .lh-head-aside p {
    color: rgba(255, 255, 255, 0.62);
  }

  .lh-section-head-light .lh-head-aside a {
    color: var(--lh-white);
  }

  .lh-factory-grid {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    grid-template-rows: repeat(3, 230px);
    gap: 10px;
  }

  .lh-factory-item {
    position: relative;
    min-width: 0;
    margin: 0;
    overflow: hidden;
    background: #172535;
  }

  .lh-factory-item-1 { grid-column: 1 / span 7; grid-row: 1 / span 2; }
  .lh-factory-item-2 { grid-column: 8 / span 5; grid-row: 1; }
  .lh-factory-item-3 { grid-column: 8 / span 5; grid-row: 2; }
  .lh-factory-item-4 { grid-column: 1 / span 4; grid-row: 3; }
  .lh-factory-item-5 { grid-column: 5 / span 4; grid-row: 3; }
  .lh-factory-item-6 { grid-column: 9 / span 4; grid-row: 3; }

  .lh-factory-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 500ms ease, filter 300ms ease;
  }

  .lh-factory-item:hover img {
    transform: scale(1.035);
    filter: brightness(1.05);
  }

  .lh-factory-item figcaption {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 44px 22px 18px;
    display: flex;
    align-items: center;
    gap: 11px;
    background: linear-gradient(0deg, rgba(4, 12, 22, 0.92), transparent);
    color: var(--lh-white);
    font-size: 13px;
    font-weight: 600;
  }

  .lh-factory-item figcaption span {
    color: var(--lh-cyan);
    font-size: 11px;
  }

  .lh-factory-note {
    margin-top: 28px;
    padding: 26px 30px;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 20px;
    border: 1px solid rgba(255, 255, 255, 0.12);
  }

  .lh-factory-note > i {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--lh-blue);
    border-radius: 50%;
    font-size: 24px;
  }

  .lh-factory-note strong,
  .lh-factory-note span {
    display: block;
  }

  .lh-factory-note strong {
    color: var(--lh-white);
    font-size: 15px;
  }

  .lh-factory-note span {
    margin-top: 4px;
    color: rgba(255, 255, 255, 0.58);
    font-size: 13px;
  }

  .lh-factory-note a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--lh-white);
    font-size: 13px;
    font-weight: 700;
  }

  .lh-products {
    background: var(--lh-surface);
  }

  .lh-product-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
  }

  .lh-product-card {
    min-width: 0;
    background: var(--lh-white);
    border: 1px solid #e1e7ed;
    border-radius: 6px;
    overflow: hidden;
    transition: transform 220ms ease, box-shadow 220ms ease;
  }

  .lh-product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 50px rgba(7, 28, 54, 0.11);
  }

  .lh-product-image {
    position: relative;
    height: 260px;
    display: block;
    overflow: hidden;
    background: #fff;
  }

  .lh-product-image > img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 18px;
    transition: transform 380ms ease;
  }

  .lh-product-card:hover .lh-product-image > img {
    transform: scale(1.035);
  }

  .lh-product-image > span {
    position: absolute;
    left: 14px;
    right: 14px;
    bottom: 14px;
    min-height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: rgba(5, 27, 52, 0.92);
    border-radius: 4px;
    color: var(--lh-white);
    font-size: 12px;
    font-weight: 700;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 180ms ease, transform 180ms ease;
  }

  .lh-product-card:hover .lh-product-image > span {
    opacity: 1;
    transform: translateY(0);
  }

  .lh-product-body {
    min-height: 190px;
    padding: 22px;
    border-top: 1px solid #edf0f3;
  }

  .lh-product-category {
    color: var(--lh-blue);
    font-size: 10px;
    font-weight: 800;
    text-transform: uppercase;
  }

  .lh-product-body h3 {
    min-height: 65px;
    margin: 12px 0 20px;
    font-size: 15px;
    font-weight: 700;
    line-height: 1.45;
  }

  .lh-product-body h3 a {
    color: var(--lh-ink);
    text-decoration: none;
  }

  .lh-product-meta {
    padding-top: 15px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 1px solid #edf0f3;
    color: var(--lh-muted);
    font-size: 11px;
  }

  .lh-product-meta i {
    color: var(--lh-blue);
    font-size: 17px;
  }

  .lh-solutions {
    padding: 120px 0;
    background: var(--lh-white);
  }

  .lh-solution-row {
    min-height: 520px;
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(390px, 0.8fr);
    align-items: stretch;
    background: var(--lh-ink);
  }

  .lh-solution-row + .lh-solution-row {
    margin-top: 24px;
  }

  .lh-solution-row-reverse {
    grid-template-columns: minmax(390px, 0.8fr) minmax(0, 1.2fr);
  }

  .lh-solution-row-reverse .lh-solution-media {
    order: 2;
  }

  .lh-solution-row-reverse .lh-solution-copy {
    order: 1;
    background: #eef3f7;
    color: var(--lh-ink);
  }

  .lh-solution-media {
    min-width: 0;
    overflow: hidden;
  }

  .lh-solution-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 500ms ease;
  }

  .lh-solution-row:hover .lh-solution-media img {
    transform: scale(1.025);
  }

  .lh-solution-copy {
    padding: 64px 58px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: var(--lh-white);
  }

  .lh-solution-copy h2 {
    color: inherit;
    font-size: 38px;
  }

  .lh-solution-copy > p {
    margin: 24px 0 0;
    color: rgba(255, 255, 255, 0.64);
    font-size: 15px;
    line-height: 1.75;
  }

  .lh-solution-row-reverse .lh-solution-copy > p {
    color: var(--lh-muted);
  }

  .lh-solution-copy ul {
    margin: 28px 0 32px;
    padding: 0;
    list-style: none;
  }

  .lh-solution-copy li {
    padding: 12px 0;
    display: flex;
    gap: 11px;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    color: rgba(255, 255, 255, 0.78);
    font-size: 13px;
  }

  .lh-solution-copy li i {
    color: var(--lh-cyan);
    font-size: 18px;
  }

  .lh-solution-copy .lh-text-link {
    color: var(--lh-white);
  }

  .lh-solution-row-reverse .lh-text-link {
    color: var(--lh-blue-deep);
  }

  .lh-solution-metrics {
    margin: 30px 0 34px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    border-top: 1px solid #cad5df;
    border-bottom: 1px solid #cad5df;
  }

  .lh-solution-metrics > div {
    padding: 20px 14px;
    border-left: 1px solid #cad5df;
  }

  .lh-solution-metrics > div:first-child {
    padding-left: 0;
    border-left: 0;
  }

  .lh-solution-metrics strong,
  .lh-solution-metrics span {
    display: block;
  }

  .lh-solution-metrics strong {
    color: var(--lh-blue-deep);
    font-size: 14px;
  }

  .lh-solution-metrics span {
    margin-top: 5px;
    color: var(--lh-muted);
    font-size: 11px;
  }

  .lh-process {
    background: var(--lh-white);
    border-top: 1px solid var(--lh-line);
  }

  .lh-process-list {
    position: relative;
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    list-style: none;
  }

  .lh-process-list::before {
    content: '';
    position: absolute;
    left: 3%;
    right: 3%;
    top: 63px;
    height: 1px;
    background: var(--lh-line);
  }

  .lh-process-list li {
    position: relative;
    min-width: 0;
    padding: 0 18px 30px;
    border-left: 1px solid var(--lh-line);
  }

  .lh-process-list li:first-child {
    padding-left: 0;
    border-left: 0;
  }

  .lh-process-number {
    display: block;
    margin-bottom: 16px;
    color: var(--lh-blue);
    font-size: 11px;
    font-weight: 800;
  }

  .lh-process-icon {
    position: relative;
    z-index: 1;
    width: 58px;
    height: 58px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--lh-white);
    border: 1px solid var(--lh-blue);
    border-radius: 50%;
    color: var(--lh-blue);
    font-size: 25px;
    transition: background 180ms ease, color 180ms ease;
  }

  .lh-process-list li:hover .lh-process-icon {
    background: var(--lh-blue);
    color: var(--lh-white);
  }

  .lh-process-list h3 {
    margin: 26px 0 12px;
    color: var(--lh-ink);
    font-size: 16px;
    line-height: 1.35;
  }

  .lh-process-list p {
    margin: 0;
    color: var(--lh-muted);
    font-size: 12px;
    line-height: 1.7;
  }

  .lh-process-cta {
    margin-top: 36px;
    padding: 28px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    background: var(--lh-ink);
    color: var(--lh-white);
  }

  .lh-process-cta span,
  .lh-process-cta strong {
    display: block;
  }

  .lh-process-cta span {
    color: var(--lh-cyan);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
  }

  .lh-process-cta strong {
    margin-top: 6px;
    color: var(--lh-white);
    font-size: 18px;
  }

  .lh-js .loong-home .reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 620ms ease var(--delay, 0ms), transform 620ms ease var(--delay, 0ms);
  }

  .lh-js .loong-home .reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
  }

  #kf.cs-section {
    padding-top: 110px;
    padding-bottom: 118px;
    background: #eef3f7;
  }

  #kf .cs-eyebrow {
    color: var(--lh-blue);
  }

  #kf .cs-title {
    color: var(--lh-ink);
  }

  #kf .cs-card {
    border-radius: 6px;
    border-color: #d9e2ea;
    box-shadow: 0 12px 36px rgba(7, 28, 54, 0.07);
  }

  #kf .cs-card::before,
  #kf .cs-quick-email {
    background: var(--lh-blue);
  }

  #kf .cs-status-dot {
    background: var(--lh-teal);
  }

  html body #online_qq_layer {
    right: 18px !important;
  }

  html body .back_top {
    right: 23px !important;
    bottom: 92px !important;
  }

  @media screen and (max-width: 1220px) {
    .lh-shell {
      width: min(calc(100% - 48px), var(--lh-max));
    }

    .lh-hero {
      min-height: 720px;
    }

    .lh-hero-inner {
      padding-top: 140px;
      padding-bottom: 142px;
    }

    .lh-hero-copy {
      width: min(570px, 58%);
    }

    .lh-kicker {
      margin-bottom: 26px;
      font-size: 12px;
    }

    .lh-hero h1 {
      font-size: 50px;
      line-height: 1.09;
    }

    .lh-hero-copy > p {
      max-width: 540px;
      margin-top: 24px;
      font-size: 15px;
      line-height: 1.72;
    }

    .lh-hero-actions {
      margin-top: 28px;
    }

    .lh-button {
      min-height: 50px;
      padding: 0 20px;
      font-size: 13px;
    }

    .lh-hero-proof > div {
      min-height: 72px;
      padding: 18px 20px 0;
    }

    .lh-hero-proof strong {
      font-size: 20px;
    }

    .lh-section-head {
      gap: 50px;
    }

    .lh-section-head h2 {
      font-size: 39px;
    }

    .lh-category-grid,
    .lh-product-grid {
      grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .lh-process-list {
      grid-template-columns: repeat(3, minmax(0, 1fr));
      row-gap: 44px;
    }

    .lh-process-list::before {
      display: none;
    }

    .lh-process-list li:nth-child(4) {
      border-left: 0;
      padding-left: 0;
    }
  }

  @media screen and (max-width: 940px) {
    .lh-section {
      padding: 90px 0;
    }

    .lh-hero-copy {
      width: 72%;
    }

    .lh-hero h1 {
      font-size: 44px;
    }

    .lh-hero-proof {
      grid-template-columns: repeat(2, 1fr);
    }

    .lh-hero-proof > div:nth-child(3),
    .lh-hero-proof > div:nth-child(4) {
      display: none;
    }

    .lh-section-head {
      grid-template-columns: 1fr;
      gap: 24px;
    }

    .lh-category-grid,
    .lh-product-grid {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .lh-factory-grid {
      grid-template-rows: repeat(4, 210px);
    }

    .lh-factory-item-1 { grid-column: 1 / span 12; grid-row: 1 / span 2; }
    .lh-factory-item-2 { grid-column: 1 / span 6; grid-row: 3; }
    .lh-factory-item-3 { grid-column: 7 / span 6; grid-row: 3; }
    .lh-factory-item-4 { grid-column: 1 / span 4; grid-row: 4; }
    .lh-factory-item-5 { grid-column: 5 / span 4; grid-row: 4; }
    .lh-factory-item-6 { grid-column: 9 / span 4; grid-row: 4; }

    .lh-solution-row,
    .lh-solution-row-reverse {
      grid-template-columns: 1fr;
    }

    .lh-solution-row-reverse .lh-solution-media,
    .lh-solution-row-reverse .lh-solution-copy {
      order: initial;
    }

    .lh-solution-media {
      min-height: 420px;
    }
  }

  @media (prefers-reduced-motion: reduce) {
    html {
      scroll-behavior: auto;
    }

    .lh-js .loong-home .reveal,
    .lh-scroll-cue i,
    .loong-home * {
      animation: none !important;
      transition: none !important;
    }
  }
}