:root {
      --blue: #0477f1;
      --deep-blue: #3c5cb3;
      --ink: #111;
      --muted: #555;
      --soft: #f9fafc;
      --container: min(1625px, calc(100vw - 100px));
      --wide: min(1805px, calc(100vw - 100px));
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      min-width: 0;
      overflow-x: hidden;
      background: var(--soft);
      color: var(--ink);
      font-family: "Noto Sans SC", "Microsoft YaHei", sans-serif;
    }

    a { color: inherit; text-decoration: none; }
    img { display: block; max-width: 100%; }

    .site-page {
      position: relative;
      overflow: hidden;
      background:
        linear-gradient(rgba(249, 250, 252, .8), rgba(249, 250, 252, .8)),
        url("/static/images/support-page-texture-bg.webp") center 547px / 2193px auto repeat-y;
    }

    .topbar {
      position: fixed;
      inset: 0 0 auto 0;
      z-index: 50;
      height: 100px;
      border-bottom: 1px solid rgba(255, 255, 255, .3);
      background: rgba(5, 15, 38, .58);
      backdrop-filter: blur(10px);
      transition: background .28s ease, border-color .28s ease, box-shadow .28s ease;
    }

    .topbar.is-light {
      border-bottom-color: rgba(26, 56, 120, .08);
      background: rgba(255, 255, 255, .96);
      box-shadow: 0 8px 24px rgba(20, 42, 78, .08);
      backdrop-filter: blur(12px);
    }

    .topbar-inner {
      height: 100%;
      display: flex;
      align-items: center;
      padding: 0 60px;
      gap: 120px;
    }

    .logo-wrap {
      position: relative;
      width: 290px;
      height: 29px;
      flex: 0 0 auto;
    }

    .logo {
      position: absolute;
      inset: 0;
      width: 290px;
      height: 29px;
      object-fit: contain;
      transition: opacity .24s ease;
    }

    .logo-blue { opacity: 0; }
    .topbar.is-light .logo-white { opacity: 0; }
    .topbar.is-light .logo-blue { opacity: 1; }

    .nav {
      display: flex;
      align-items: center;
      gap: 60px;
      margin-left: 8px;
    }

    .nav a,
    .header-links a {
      position: relative;
      color: #fff;
      text-decoration: none;
      transition: color .22s ease, transform .22s ease;
    }

    .topbar.is-light .nav a,
    .topbar.is-light .header-links a { color: #111; }

    .nav a {
      font-size: 24px;
      line-height: 38.4px;
      white-space: nowrap;
    }

    .nav-deepvision { font-weight: 700; }

    .nav a.active { color: var(--blue); }
    .topbar.is-light .nav a.active,
    .topbar.is-light .header-links a:first-child { color: var(--deep-blue); }

    .nav a.active::after {
      content: "";
      position: absolute;
      left: 50%;
      bottom: -28px;
      width: 111px;
      height: 3px;
      background: var(--blue);
      transform: translateX(-50%);
    }

    .topbar.is-light .nav a.active::after {
      bottom: -31px;
      background: var(--deep-blue);
    }

    .nav a:hover,
    .header-links a:hover {
      color: #58a7ff;
      transform: translateY(-1px);
    }

    .header-links {
      margin-left: auto;
      display: flex;
      gap: 20px;
      align-items: center;
    }

    .header-links a {
      font-size: 16px;
      line-height: 25.6px;
      white-space: nowrap;
    }

    .header-links a:first-child {
      color: var(--blue);
      font-weight: 500;
    }

    .hero {
      position: relative;
      height: 547px;
      overflow: hidden;
      color: #fff;
      background: #07152b url("/static/images/support-hero-bg.webp") center top / cover no-repeat;
    }

    .hero::before {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      top: 98px;
      height: 453px;
      background: rgba(0, 0, 0, .1);
      backdrop-filter: blur(5px);
    }

    .hero-content {
      position: relative;
      z-index: 1;
      width: min(1385px, calc(100% - 520px));
      margin-left: 260px;
      padding-top: 194px;
    }

    .hero h1 {
      margin: 0;
      font-size: 48px;
      line-height: 67.2px;
      font-weight: 500;
      letter-spacing: 0;
    }

    .hero p {
      width: 800px;
      margin: 15px 0 0;
      color: rgba(255, 255, 255, .9);
      font-size: 24px;
      line-height: 40.8px;
      font-weight: 500;
    }

    .section-heading {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 15px;
    }

    .section-heading img {
      width: 40px;
      height: 23px;
      object-fit: contain;
    }

    .section-heading h2 {
      margin: 0;
      color: #111;
      font-size: 48px;
      line-height: 76.8px;
      font-weight: 500;
      letter-spacing: 0;
      white-space: nowrap;
    }

    .section-heading.light h2 { color: #fff; }

    .services {
      padding-top: 60px;
    }

    .services-intro {
      width: 1401px;
      max-width: calc(100% - 100px);
      margin: 20px auto 0;
      color: #555;
      font-size: 24px;
      line-height: 43.2px;
      font-weight: 400;
      text-align: justify;
    }

    .service-grid {
      width: min(1607px, calc(100% - 40px));
      max-width: none;
      margin: 76px auto 0;
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 40px;
    }

    .service-card {
      position: relative;
      overflow: hidden;
      height: 613px;
      min-height: 613px;
      border: 1px solid rgba(60, 92, 179, .2);
      border-radius: 12px;
      background: #fff;
      box-shadow: none;
      transition: border-color .3s ease;
    }

    .service-card:hover {
      border-color: #3c5cb3;
    }

    .service-card-image {
      position: absolute;
      left: -1px;
      top: -1px;
      width: calc(100% + 2px);
      height: 265px;
      overflow: hidden;
      transition: height .34s ease;
    }

    .service-card-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .service-card::before {
      content: "";
      position: absolute;
      left: -1px;
      top: 89px;
      width: calc(100% + 2px);
      height: 175px;
      z-index: 1;
      background: linear-gradient(180deg, rgba(255, 255, 255, 0), #fff);
      pointer-events: none;
      opacity: 1;
      transition: opacity .28s ease;
    }

    .service-card::after {
      content: "";
      position: absolute;
      left: -1px;
      top: -1px;
      width: calc(100% + 2px);
      height: calc(100% + 2px);
      z-index: 1;
      background: rgba(0, 0, 0, .2);
      backdrop-filter: blur(5px);
      opacity: 0;
      pointer-events: none;
      transition: opacity .28s ease;
    }

    .service-card:hover .service-card-image {
      height: 100%;
    }

    .service-card:hover::before {
      opacity: 0;
    }

    .service-card:hover::after {
      opacity: 1;
    }

    .service-card-body {
      position: relative;
      z-index: 2;
      padding: 183px 14px 34px;
      text-align: center;
      transition: padding .34s ease;
    }

    .service-card h3 {
      margin: 0;
      color: #000;
      font-size: 32px;
      line-height: 51.2px;
      font-weight: 500;
      transition: color .28s ease;
    }

    .service-card p {
      width: 450px;
      max-width: 100%;
      margin: 15px auto 0;
      color: #666;
      font-size: 20px;
      line-height: 40.8px;
      font-weight: 400;
      text-align: center;
      transition: color .28s ease;
    }

    .service-card:hover .service-card-body {
      padding-top: 124px;
    }

    .service-card:hover h3,
    .service-card:hover p {
      color: #fff;
    }

    .system {
      --system-bg: url("/static/images/support-system-active-bg.webp");
      --system-icon-x: -11px;
      position: relative;
      height: 906px;
      margin-top: 60px;
      overflow: hidden;
      color: #fff;
      background: #f5f7fa url("/static/images/support-system-section-bg.webp") center / cover no-repeat;
    }

    .system::before {
      content: "";
      position: absolute;
      left: 0;
      top: 3px;
      width: calc(100% - 4px);
      height: 903px;
      background: var(--system-bg) center / cover no-repeat;
    }

    .system::after {
      content: "";
      position: absolute;
      left: 0;
      top: 3px;
      width: calc(100% - 4px);
      height: 903px;
      background: rgba(0, 0, 0, .3);
      backdrop-filter: blur(8px);
    }

    .system-bg-fade {
      position: absolute;
      left: 0;
      top: 3px;
      width: calc(100% - 4px);
      height: 903px;
      z-index: 0;
      opacity: 0;
      pointer-events: none;
      background-position: center;
      background-size: cover;
      background-repeat: no-repeat;
      transition: opacity .46s cubic-bezier(.22, .9, .28, 1);
    }

    .system-bg-fade.is-visible {
      opacity: 1;
    }

    .system .section-heading {
      position: relative;
      z-index: 1;
      padding-top: 63px;
    }

    .system-copy {
      position: absolute;
      z-index: 1;
      left: 213px;
      top: 427px;
      width: 399px;
      display: grid;
      gap: 15px;
      overflow: hidden;
    }

    .system-copy-icon {
      width: 53px;
      height: 53px;
      overflow: hidden;
    }

    .system-copy-icon img {
      width: 261px;
      max-width: none;
      height: auto;
      transform: translate(var(--system-icon-x), -14px);
    }

    .system-copy h2 {
      margin: 0;
      font-size: 36px;
      line-height: 1.2;
      font-weight: 400;
    }

    .system-copy p {
      margin: 0;
      font-size: 22px;
      line-height: 34px;
      letter-spacing: 3.3px;
      font-weight: 400;
    }

    .system-copy.is-exiting .system-copy-icon,
    .system-copy.is-exiting h2,
    .system-copy.is-exiting p {
      animation: systemCopyOut .18s cubic-bezier(.42, 0, .24, 1) both;
    }

    .system-copy.is-entering .system-copy-icon,
    .system-copy.is-entering h2,
    .system-copy.is-entering p {
      animation: systemCopyIn .34s cubic-bezier(.22, .9, .28, 1) both;
    }

    .system-copy.is-exiting h2 { animation-delay: .02s; }
    .system-copy.is-exiting p { animation-delay: .04s; }
    .system-copy.is-entering h2 { animation-delay: .04s; }
    .system-copy.is-entering p { animation-delay: .08s; }

    @keyframes systemCopyOut {
      from {
        opacity: 1;
        transform: translateY(0);
        filter: blur(0);
      }
      to {
        opacity: 0;
        transform: translateY(-18px);
        filter: blur(3px);
      }
    }

    @keyframes systemCopyIn {
      from {
        opacity: 0;
        transform: translateY(24px);
        filter: blur(3px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
        filter: blur(0);
      }
    }

    .system-gallery {
      position: absolute;
      z-index: 1;
      left: 759px;
      top: 380px;
      width: 1964px;
      height: 397px;
      overflow: hidden;
    }

    .system-gallery-track {
      display: flex;
      align-items: flex-end;
      gap: 36px;
      height: 100%;
    }

    .system-shot {
      position: relative;
      overflow: hidden;
      flex: 0 0 292px;
      height: 356px;
      border: 1px solid rgba(60, 92, 179, .4);
      border-radius: 11px;
      background: #d9d9d9;
      cursor: pointer;
      transform-origin: top left;
      will-change: transform;
      transition: flex-basis .34s cubic-bezier(.22, .9, .28, 1),
        height .34s cubic-bezier(.22, .9, .28, 1),
        border-color .26s ease,
        border-width .26s ease;
    }

    .system-gallery-track.is-animating .system-shot {
      transition: none;
    }

    .system-shot.active {
      flex-basis: 326px;
      height: 397px;
      border: 4.5px solid #3c5cb3;
    }

    .system-shot.is-leaving-active {
      border: 4.5px solid #3c5cb3;
    }

    .system-shot img {
      position: absolute;
      left: 0;
      top: 0;
      width: 100%;
      height: 100%;
      max-width: none;
      object-fit: cover;
      transition: left .28s ease, top .28s ease, width .28s ease, height .28s ease;
    }

    .system-gallery-track.is-animating .system-shot img {
      transition: none;
    }

    .system-shot.active img {
      left: -4.5px;
      top: -4.5px;
      width: calc(100% + 9px);
      height: calc(100% + 7.2px);
    }

    .system-shot.is-leaving-active img {
      left: -4.5px;
      top: -4.5px;
      width: calc(100% + 9px);
      height: calc(100% + 7.2px);
    }

    .system-shot::after {
      content: "";
      position: absolute;
      inset: 0;
      background: rgba(0, 0, 0, .2);
      opacity: 1;
      pointer-events: none;
      transition: opacity .34s ease;
    }

    .system-shot.active::after {
      opacity: 0;
    }

    .system-shot.is-leaving-active::after {
      opacity: 0;
    }

    .system-dots {
      position: absolute;
      z-index: 1;
      left: 50%;
      bottom: 60px;
      transform: translateX(-50%);
      display: flex;
      align-items: center;
      gap: 9px;
    }

    .system-dot {
      width: 21.6px;
      height: 9px;
      padding: 0;
      border: 0;
      border-radius: 56px;
      background: rgba(255, 255, 255, .6);
      cursor: pointer;
      transition: width .28s cubic-bezier(.22, .9, .28, 1), background .24s ease;
    }

    .system-dot.active {
      width: 48.6px;
      background: #fff;
    }

    .process {
      padding: 60px 0 80px;
    }

    .process-grid {
      width: var(--container);
      height: 450px;
      margin: 60px auto 0;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 40px;
    }

    .process-card {
      position: relative;
      isolation: isolate;
      overflow: hidden;
      flex: 1 0 0;
      min-width: 1px;
      height: 100%;
      border: 1px solid #d8d8d8;
      border-radius: 12px;
      background: #fff;
      box-shadow: 0 4px 6px rgba(0, 0, 0, .04);
      text-align: center;
      transition: transform .24s cubic-bezier(.22, .9, .28, 1),
                  border-color .24s ease,
                  box-shadow .24s ease,
                  background .24s ease;
      will-change: transform;
    }

    .process-card::before,
    .process-card::after {
      content: "";
      position: absolute;
      inset: 0;
      border-radius: inherit;
      pointer-events: none;
      opacity: 0;
      transition: opacity .24s ease, transform .24s cubic-bezier(.22, .9, .28, 1);
    }

    .process-card::before {
      z-index: 0;
      background:
        radial-gradient(circle at 50% 0%, rgba(60, 92, 179, .16), rgba(60, 92, 179, 0) 42%),
        linear-gradient(180deg, rgba(60, 92, 179, .06), rgba(255, 255, 255, 0) 62%);
      transform: translateY(8px) scale(.96);
    }

    .process-card::after {
      z-index: 2;
      box-shadow: inset 0 0 0 1px #3c5cb3;
    }

    .process-card > * {
      z-index: 1;
    }

    .process-card:hover {
      transform: translateY(-8px);
      border-color: #3c5cb3;
      background: #fbfdff;
      box-shadow: 0 22px 44px rgba(26, 45, 96, .16);
    }

    .process-card:hover::before,
    .process-card:hover::after {
      opacity: 1;
      transform: none;
    }

    .process-ring {
      position: absolute;
      left: calc(50% + .5px);
      top: 39px;
      width: 102px;
      height: 102px;
      transform: translateX(-50%);
      background: url("/static/images/support-process-ring.svg") center / 100% 100% no-repeat;
      transition: filter .24s ease, transform .24s cubic-bezier(.22, .9, .28, 1);
    }

    .process-card strong {
      position: absolute;
      left: 50%;
      top: 53px;
      transform: translateX(-50%);
      color: #3c5cb3;
      font-size: 46px;
      line-height: 73.6px;
      font-weight: 700;
      transition: transform .24s cubic-bezier(.22, .9, .28, 1), color .24s ease;
    }

    .process-icon {
      position: absolute;
      left: calc(50% + .5px);
      top: 183px;
      width: 70px;
      height: 70px;
      overflow: hidden;
      transform: translateX(-50%);
      transition: transform .24s cubic-bezier(.22, .9, .28, 1), filter .24s ease;
    }

    .process-icon img {
      width: var(--icon-w, 390px);
      max-width: none;
      height: auto;
      transform: translate(var(--icon-x), var(--icon-y));
    }

    .process-card h3 {
      position: absolute;
      left: calc(50% + 2px);
      top: 266px;
      transform: translateX(-50%);
      margin: 0;
      color: #333;
      font-size: 28px;
      line-height: 51.2px;
      font-weight: 500;
      white-space: nowrap;
      transition: color .24s ease, transform .24s cubic-bezier(.22, .9, .28, 1);
    }

    .process-card p {
      position: absolute;
      left: calc(50% + 7.5px);
      top: 318px;
      width: 220px;
      margin: 0;
      transform: translateX(-50%);
      color: #666;
      font-size: 20px;
      line-height: 30px;
      font-weight: 400;
      text-align: center;
      transition: color .24s ease, transform .24s cubic-bezier(.22, .9, .28, 1);
    }

    .process-card:hover .process-ring {
      transform: translateX(-50%) translateY(-3px);
      filter: drop-shadow(0 10px 18px rgba(60, 92, 179, .18));
    }

    .process-card:hover strong {
      transform: translateX(-50%) translateY(-2px);
      color: #28499d;
    }

    .process-card:hover .process-icon {
      transform: translateX(-50%) translateY(-4px);
      filter: drop-shadow(0 12px 18px rgba(60, 92, 179, .2));
    }

    .process-card:hover h3 {
      color: #1f3472;
      transform: translateX(-50%) translateY(-2px);
    }

    .process-card:hover p {
      color: #3f4b63;
      transform: translateX(-50%) translateY(-1px);
    }

    .commitment {
      padding: 60px 0;
    }

    .commitment-grid {
      width: var(--wide);
      margin: 60px auto 0;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .commit-card {
      position: relative;
      isolation: isolate;
      overflow: hidden;
      height: 163px;
      padding: 36px 21px;
      border: 1px solid #e2e8f0;
      border-radius: 10px;
      background: #fff;
      text-align: center;
      transition: transform .24s cubic-bezier(.22, .9, .28, 1),
                  border-color .24s ease,
                  box-shadow .24s ease,
                  background .24s ease;
      will-change: transform;
    }

    .commit-card::before,
    .commit-card::after {
      content: "";
      position: absolute;
      inset: 0;
      border-radius: inherit;
      pointer-events: none;
      opacity: 0;
      transition: opacity .24s ease, transform .24s cubic-bezier(.22, .9, .28, 1);
    }

    .commit-card::before {
      z-index: 0;
      background:
        radial-gradient(circle at 50% 50%, rgba(60, 92, 179, .14), rgba(60, 92, 179, 0) 58%),
        linear-gradient(135deg, rgba(60, 92, 179, .08), rgba(255, 255, 255, 0) 62%);
      transform: scale(.82);
    }

    .commit-card::after {
      z-index: 2;
      box-shadow: inset 0 0 0 1px #3c5cb3;
    }

    .commit-card:hover {
      transform: translateY(-6px);
      border-color: #3c5cb3;
      background: #fbfdff;
      box-shadow: 0 18px 36px rgba(26, 45, 96, .14);
    }

    .commit-card:hover::before,
    .commit-card:hover::after {
      opacity: 1;
      transform: none;
    }

    .commit-card strong {
      position: relative;
      z-index: 1;
      display: block;
      color: #333;
      font-size: 32px;
      line-height: 51.2px;
      font-weight: 500;
      transition: color .24s ease, transform .24s cubic-bezier(.22, .9, .28, 1);
    }

    .commit-card span {
      position: relative;
      z-index: 1;
      display: block;
      margin-top: 8px;
      color: #555;
      font-size: 20px;
      line-height: 32px;
      font-weight: 500;
      transition: color .24s ease, transform .24s cubic-bezier(.22, .9, .28, 1);
    }

    .commit-card:hover strong {
      color: #3c5cb3;
      transform: translateY(-2px);
    }

    .commit-card:hover span {
      color: #26334f;
      transform: translateY(-1px);
    }

        .reveal {
      opacity: 0;
      transform: translateY(28px);
      transition: opacity .64s ease, transform .64s ease;
      transition-delay: var(--delay, 0ms);
    }

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

    @media (max-width: 1840px) {
      .topbar-inner {
        padding: 0 40px;
        gap: 70px;
      }
      .logo-wrap,
      .logo {
        width: 250px;
        height: 25px;
      }
      .nav { gap: 36px; }
      .nav a { font-size: 21px; }
      .system-copy { left: 140px; }
      .system-gallery { left: 660px; }
    }


    @media (max-width: 1500px) {
      .topbar-inner {
        padding: 0 28px;
        gap: 34px;
      }
      .nav {
        gap: 24px;
        margin-left: 0;
      }
      .nav a {
        font-size: 18px;
        line-height: 30px;
      }
      .nav a.active::after {
        width: 86px;
        bottom: -32px;
      }
      .header-links { display: none; }
      .service-grid,
      .process-grid {
        grid-template-columns: repeat(2, 1fr);
        height: auto;
      }
      .process-card { min-height: 450px; }
      .commitment-grid { grid-template-columns: repeat(2, 1fr); }
    }


    @media (max-width: 1180px) {
      .topbar { height: 84px; }
      .topbar-inner { padding: 0 22px; gap: 24px; }
      .logo-wrap, .logo { width: 220px; height: 22px; }
      .nav {
        flex: 1 1 auto;
        justify-content: space-between;
        gap: 14px;
        overflow-x: visible;
      }
      .nav a { font-size: 16px; }
      .nav a.active::after,
      .topbar.is-light .nav a.active::after {
        bottom: -27px;
        width: 86px;
      }
      .header-links { display: none; }
      .hero-content {
        width: calc(100% - 80px);
        margin-left: 40px;
      }
      .hero p { width: min(800px, 100%); }
      .system {
        height: auto;
        padding: 56px 0 72px;
      }
      .system .section-heading { padding-top: 0; }
      .system-copy,
      .system-gallery {
        position: relative;
        left: auto;
        top: auto;
        width: calc(100% - 80px);
        margin: 56px auto 0;
      }
      .system-gallery { height: auto; }
      .system-gallery-track { flex-wrap: wrap; }
      .system-dots { position: relative; bottom: auto; margin-top: 42px; }
      .footer-inner { grid-template-columns: repeat(3, 1fr); }
    }


    @media (max-width: 900px) {
      .topbar { height: 72px; }
      .topbar-inner {
        padding: 0 16px;
        gap: 16px;
      }
      .logo-wrap,
      .logo {
        width: 190px;
        height: 19px;
      }
      .nav {
        justify-content: flex-start;
        overflow-x: auto;
        scrollbar-width: none;
      }
      .nav::-webkit-scrollbar { display: none; }
      .nav a {
        font-size: 15px;
        line-height: 24px;
      }
      .nav a.active::after { display: none; }
    }


    @media (max-width: 768px) {
      .hero {
        height: auto;
        min-height: 520px;
      }
      .hero-content {
        width: calc(100% - 40px);
        margin-left: 20px;
        padding-top: 150px;
        padding-bottom: 64px;
      }
      .hero h1 { font-size: 36px; line-height: 50px; }
      .hero p { font-size: 18px; line-height: 32px; }
      .services { padding-top: 48px; }
      .section-heading h2 { font-size: 32px; line-height: 48px; }
      .section-heading img { width: 28px; }
      .services-intro {
        max-width: calc(100% - 40px);
        font-size: 18px;
        line-height: 32px;
      }
      .service-grid,
      .process-grid,
      .commitment-grid {
        width: calc(100% - 40px);
        max-width: calc(100% - 40px);
        grid-template-columns: 1fr;
        gap: 20px;
      }
      .service-card { height: auto; min-height: auto; }
      .service-card-body { padding-bottom: 30px; }
      .service-card h3 { font-size: 26px; line-height: 40px; }
      .service-card p { font-size: 18px; line-height: 32px; }
      .system-copy p {
        font-size: 18px;
        line-height: 1.35;
        letter-spacing: 1.2px;
      }
      .system-shot,
      .system-shot.active {
        flex-basis: calc(50% - 18px);
        height: 260px;
      }
      .process { padding: 48px 0; }
      .process-card { height: 420px; }
      .commitment { padding: 48px 0; }
      .footer {
        margin-top: 48px;
        padding: 40px 24px;
      }
      .footer-inner {
        width: 100%;
        grid-template-columns: 1fr;
      }
    }