:root {
      --blue-900: #07304b;
      --blue-700: #075fae;
      --blue-500: #0aa7df;
      --blue-300: #54d4ef;
      --aqua: #27c8c4;
      --green: #18a870;
      --red: #d90000;
      --ink: #102033;
      --muted: #607086;
      --line: #d7e8f2;
      --soft: #f2fbff;
      --white: #ffffff;
      --shadow: 0 22px 56px rgba(5, 48, 95, 0.12);
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
      color: var(--ink);
      background: var(--white);
      letter-spacing: 0;
    }

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

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

    .wrap {
      width: min(1180px, calc(100% - 32px));
      margin: 0 auto;
    }

    .utility {
      background: linear-gradient(90deg, var(--blue-900), var(--blue-700));
      color: rgba(255,255,255,0.9);
      font-size: 14px;
    }

    .utility .wrap,
    .nav .wrap {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }

    .utility .wrap {
      min-height: 38px;
    }

    .utility-links,
    .nav-links,
    .nav-actions,
    .hero-actions,
    .cta-actions {
      display: flex;
      align-items: center;
      gap: 14px;
      flex-wrap: wrap;
    }

    .utility-links a {
      color: inherit;
      cursor: pointer;
      opacity: 0.86;
    }

    .modal-mask {
      position: fixed;
      inset: 0;
      background: rgba(16, 32, 51, 0.46);
      display: none;
      align-items: center;
      justify-content: center;
      padding: 20px;
      z-index: 200;
    }

    .modal-mask.is-open {
      display: flex;
    }

    .modal {
      width: min(520px, 100%);
      background: #fff;
      border-radius: 18px;
      box-shadow: 0 28px 70px rgba(5, 48, 95, 0.28);
      overflow: hidden;
      border: 1px solid rgba(216, 61, 81, 0.18);
    }

    .modal-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 16px 18px;
      background: linear-gradient(180deg, #fde7ea 0%, #f8d7da 100%);
      color: #842029;
      font-weight: 900;
      font-size: 18px;
    }

    .modal-close {
      border: 0;
      background: transparent;
      color: inherit;
      font-size: 28px;
      line-height: 1;
      cursor: pointer;
      padding: 0 4px;
    }

    .modal-body {
      padding: 20px 18px 22px;
      color: #5c1a20;
      font-size: 16px;
      line-height: 1.75;
      font-weight: 700;
    }

    .modal-actions {
      display: flex;
      justify-content: flex-end;
      gap: 10px;
      padding: 0 18px 18px;
    }

    .modal-actions .button {
      min-width: 92px;
      border-radius: 10px;
    }

    .button.modal-ok {
      color: #fff;
      background: linear-gradient(90deg, #3b82f6, #5b8ef7);
      border-color: #5b8ef7;
    }

    .nav {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(255,255,255,0.94);
      border-bottom: 1px solid var(--line);
      backdrop-filter: blur(16px);
    }

    .nav .wrap {
      min-height: 82px;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 14px;
      min-width: 0;
    }

    .brand-logo {
      width: 64px;
      height: 64px;
      flex: 0 0 auto;
    }

    .brand-name {
      display: grid;
      gap: 3px;
      min-width: 0;
    }

    .brand-name strong {
      color: #1f2937;
      font-size: 22px;
      font-weight: 900;
      white-space: nowrap;
    }

    .brand-name span {
      color: var(--blue-700);
      font-size: 14px;
      font-weight: 800;
      white-space: nowrap;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 12px;
      flex: 1 1 auto;
      flex-wrap: wrap;
      justify-content: center;
      color: #334155;
      font-size: 15px;
      font-weight: 800;
    }

    .nav-links a {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 40px;
      padding: 9px 18px;
      border: 1px solid var(--line);
      border-radius: 999px;
      background: #fff;
      color: #334155;
      transition: transform 0.18s ease, border-color 0.18s ease, color 0.18s ease, background 0.18s ease, box-shadow 0.18s ease;
    }

    .nav-links a:hover {
      transform: translateY(-1px);
      border-color: var(--blue-500);
      color: var(--blue-700);
      box-shadow: 0 10px 24px rgba(7, 95, 174, 0.14);
    }

    .nav-links a.active {
      border-color: var(--blue-700);
      background: linear-gradient(90deg, var(--blue-700), var(--blue-500));
      color: #fff;
      box-shadow: 0 10px 24px rgba(7, 95, 174, 0.18);
    }

    .nav-actions {
      display: flex;
      flex: 0 0 auto;
      gap: 10px;
      align-items: center;
    }

    .button {
      min-height: 44px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 18px;
      border-radius: 6px;
      border: 1px solid transparent;
      font-weight: 900;
      white-space: nowrap;
      transition: transform 0.18s ease, box-shadow 0.18s ease;
    }

    .button:hover {
      transform: translateY(-1px);
      box-shadow: 0 14px 28px rgba(5, 48, 95, 0.16);
    }

    .button.primary {
      color: #fff;
      background: linear-gradient(90deg, var(--blue-700), var(--blue-500));
    }

    .button.secondary {
      color: var(--blue-700);
      background: #fff;
      border-color: var(--blue-500);
    }

    .button.red {
      color: #fff;
      background: var(--red);
    }

    .hero {
      position: relative;
      overflow: hidden;
      height: 384px;
      min-height: 384px;
      background: #284b41;
      border-bottom: 1px solid var(--line);
      isolation: isolate;
    }

    .hero::before {
      content: "";
      position: absolute;
      top: 0;
      right: 29.8%;
      width: 390px;
      height: 100%;
      background: #91d6bb;
      clip-path: polygon(0 0, 100% 0, 44% 50%, 100% 100%, 0 100%);
      z-index: 1;
    }

    .hero::after {
      content: "";
      position: absolute;
      top: -32%;
      right: 31.2%;
      width: 318px;
      height: 164%;
      border-radius: 50%;
      background: #284b41;
      z-index: 1;
      pointer-events: none;
    }

    .hero-grid {
      width: min(1366px, 100%);
      height: 384px;
      min-height: 384px;
      margin: 0 auto;
      display: block;
      position: relative;
      z-index: 2;
    }

    .hero-content {
      width: 58%;
      height: 100%;
      padding: 42px 64px 28px 58px;
      color: #fff;
      display: flex;
      flex-direction: column;
      justify-content: flex-start;
      position: relative;
      z-index: 4;
    }

    .breadcrumb {
      display: none;
      gap: 8px;
      flex-wrap: wrap;
      color: rgba(255,255,255,0.88);
      font-size: 14px;
      font-weight: 900;
      margin-bottom: 18px;
    }

    .breadcrumb span {
      color: rgba(255,255,255,0.58);
    }

    h1 {
      margin: 0;
      color: #fff;
      font-size: 52px;
      line-height: 1.12;
      letter-spacing: 0;
      max-width: 650px;
    }

    .hero-copy {
      margin: 22px 0 0;
      max-width: 610px;
      color: rgba(255,255,255,0.94);
      font-size: 20px;
      line-height: 1.42;
      font-weight: 800;
    }

    .hero-actions {
      margin-top: 22px;
    }

    .hero-actions .button.secondary {
      color: #fff;
      background: rgba(255,255,255,0.08);
      border-color: rgba(255,255,255,0.42);
    }

    .hero-actions .button.line {
      color: #fff;
      background: linear-gradient(90deg, #00c300, #06c755);
      border-color: rgba(255,255,255,0.22);
    }

    .business-card {
      display: none;
      margin-top: 18px;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      grid-template-columns: repeat(2, minmax(0, 1fr));
      border: 1px solid rgba(255,255,255,0.22);
      background: rgba(255,255,255,0.08);
      backdrop-filter: blur(12px);
    }

    .business-card div {
      padding: 12px 14px;
      border-right: 1px solid rgba(255,255,255,0.18);
    }

    .business-card div:last-child {
      border-right: 0;
    }

    .business-card span {
      display: block;
      color: rgba(255,255,255,0.72);
      font-size: 13px;
      font-weight: 800;
      margin-bottom: 5px;
    }

    .business-card strong {
      display: block;
      color: #fff;
      font-size: 15px;
      line-height: 1.45;
    }

    .hero-visual {
      position: absolute;
      inset: 0 0 0 auto;
      width: 40.2%;
      height: 384px;
      min-height: 384px;
      overflow: hidden;
      clip-path: ellipse(76% 100% at 80% 50%);
      margin-right: 0;
      z-index: 3;
    }

    .hero-photo {
      width: 100%;
      height: 100%;
      min-height: 384px;
      overflow: hidden;
      background: #dff7ff;
    }

    .hero-photo img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      object-position: 39% 50%;
    }


    .section {
      padding: 82px 0;
    }

    .section.alt {
      background: var(--soft);
      border-top: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
    }

    .section-head {
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 44px;
      align-items: end;
      margin-bottom: 34px;
    }

    .eyebrow {
      margin: 0 0 12px;
      color: var(--blue-700);
      font-size: 14px;
      font-weight: 900;
      text-transform: uppercase;
    }

    h2 {
      margin: 0;
      color: var(--blue-900);
      font-size: 38px;
      line-height: 1.22;
      letter-spacing: 0;
    }

    .section-head p,
    .section-copy {
      margin: 0;
      color: #526174;
      line-height: 1.85;
      font-size: 17px;
      font-weight: 650;
    }

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

    .service {
      min-height: 228px;
      padding: 22px;
      border: 1px solid var(--line);
      border-top: 5px solid var(--blue-500);
      border-radius: 8px;
      background: #fff;
    }

    .service h3,
    .problem h3,
    .step h3 {
      margin: 0 0 10px;
      color: #0f172a;
      font-size: 21px;
    }

    .service p,
    .problem p,
    .step p {
      margin: 0;
      color: #526174;
      line-height: 1.75;
      font-weight: 650;
    }

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

    .scene {
      position: relative;
      min-height: 260px;
      overflow: hidden;
      border-radius: 8px;
      background: #dff7ff;
    }

    .scene img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      position: absolute;
      inset: 0;
    }

    .scene::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(5,48,95,0.02), rgba(5,48,95,0.70));
    }

    .scene strong {
      position: absolute;
      left: 18px;
      right: 18px;
      bottom: 16px;
      z-index: 1;
      color: #fff;
      font-size: 22px;
      line-height: 1.3;
      text-shadow: 0 2px 10px rgba(0,0,0,0.2);
    }

    .system-grid {
      display: grid;
      grid-template-columns: 0.95fr 1.05fr;
      gap: 46px;
      align-items: center;
    }

    .system-img {
      border-radius: 8px;
      overflow: hidden;
      background: #fff;
      border: 1px solid var(--line);
      box-shadow: var(--shadow);
    }

    .system-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .check-list {
      display: grid;
      gap: 16px;
      margin: 26px 0 0;
      padding: 0;
      list-style: none;
    }

    .check-list li {
      display: grid;
      grid-template-columns: 34px 1fr;
      gap: 14px;
      color: #526174;
      line-height: 1.75;
      font-weight: 650;
    }

    .check-list li::before {
      content: "";
      width: 34px;
      height: 34px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--blue-500), var(--aqua));
      box-shadow: inset 0 0 0 8px rgba(255,255,255,0.28);
    }

    .problem-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 16px;
    }

    .problem {
      border: 1px solid var(--line);
      border-radius: 8px;
      background: #fff;
      overflow: hidden;
    }

    .problem img {
      width: 100%;
      height: 190px;
      object-fit: cover;
    }

    .problem div {
      padding: 22px;
    }

    .process {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 1px;
      background: var(--line);
      border: 1px solid var(--line);
    }

    .step {
      min-height: 210px;
      background: #fff;
      padding: 26px;
    }

    .step-number {
      display: block;
      color: var(--blue-700);
      font-size: 15px;
      font-weight: 900;
      margin-bottom: 18px;
    }

    .cta {
      padding: 68px 0;
      color: #fff;
      background:
        linear-gradient(90deg, rgba(5,48,95,0.88), rgba(7,95,174,0.72)),
        url("/images/water-hand.jpg") center / cover;
    }

    .cta-grid {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 30px;
      align-items: center;
    }

    .cta h2 {
      color: #fff;
      margin-bottom: 14px;
    }

    .cta p {
      margin: 0;
      color: rgba(255,255,255,0.9);
      line-height: 1.85;
      font-size: 17px;
      font-weight: 700;
      max-width: 780px;
    }

    footer {
      padding: 30px 0;
      background: #07192d;
      color: rgba(255,255,255,0.82);
      font-size: 14px;
    }

    footer .wrap {
      display: flex;
      justify-content: space-between;
      gap: 18px;
      flex-wrap: wrap;
    }

    .footer-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      flex-wrap: nowrap;
      white-space: nowrap;
    }

    .footer-links,
    .footer-info {
      display: flex;
      align-items: center;
      gap: 18px;
      white-space: nowrap;
      flex: 0 0 auto;
    }

    .footer-links {
      color: #fff;
      font-size: 16px;
      font-weight: 900;
    }

    .footer-links a {
      color: #fff;
      opacity: 0.92;
    }

    .footer-links a:hover {
      opacity: 1;
      color: #9dd9ff;
    }

    .footer-info {
      margin-left: auto;
    }

    @media (max-width: 1020px) {
      .utility {
        display: none;
      }

      .nav-links {
        display: none;
      }

      .section-head,
      .system-grid,
      .cta-grid {
        grid-template-columns: 1fr;
      }

      .hero-grid {
        display: flex;
        flex-direction: column;
        min-height: auto;
        height: auto;
        width: min(100% - 32px, 1180px);
      }

      .hero {
        height: auto;
        min-height: 0;
        overflow: visible;
      }

      .hero::before {
        display: none;
      }

      .hero::after {
        display: none;
      }

      .hero-content {
        order: 2;
        width: 100%;
        height: auto;
        padding: 30px 0 34px;
      }

      .hero-visual {
        order: 1;
        position: relative;
        inset: auto;
        width: 100%;
        height: auto;
        min-height: 330px;
        clip-path: ellipse(86% 76% at 50% 48%);
        margin: 0 0 8px;
      }

      .hero-photo,
      .hero-photo img {
        min-height: 330px;
      }

      .hero-photo img {
        object-position: 38% 50%;
      }

      h1 {
        font-size: 42px;
      }

      h2 {
        font-size: 31px;
      }

      .service-grid,
      .scene-grid,
      .problem-grid,
      .process {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .hero-visual {
        max-width: none;
      }
    }

    @media (max-width: 640px) {
      .wrap {
        width: min(100% - 24px, 1180px);
      }

      .utility {
        display: none;
      }

      .nav .wrap {
        min-height: 60px;
        flex-wrap: wrap;
        align-items: center;
        padding-top: 4px;
      }

      .brand {
        flex: 1 1 auto;
        min-width: 0;
        gap: 10px;
      }

      .brand-logo {
        width: 36px;
        height: 42px;
      }

      .brand-name strong {
        font-size: 14px;
        line-height: 1.12;
        white-space: nowrap;
      }

      .brand-name span {
        display: block;
        font-size: 9px;
        line-height: 1.15;
        white-space: nowrap;
      }

      .nav-links {
        display: flex;
        order: 3;
        width: 100%;
        margin-top: -8px;
        padding-bottom: 6px;
        padding-left: 2px;
        justify-content: flex-start;
        gap: 6px;
        flex-wrap: nowrap;
        overflow-x: auto;
        overflow-y: hidden;
        white-space: nowrap;
        scrollbar-width: none;
        -webkit-overflow-scrolling: touch;
      }

      .nav-links::-webkit-scrollbar {
        display: none;
      }

      .nav-links a {
        min-height: 30px;
        padding: 5px 10px;
        border: 1px solid var(--line);
        border-radius: 999px;
        background: #fff;
        color: #334155;
        flex: 0 0 auto;
        box-shadow: none;
        transform: none;
        font-size: 11px;
        line-height: 1.2;
        font-weight: 800;
      }

      .nav-links a:hover,
      .nav-links a.active {
        transform: none;
        box-shadow: none;
      }

      .nav-actions {
        order: 2;
        margin-left: auto;
        gap: 8px;
        flex: 0 0 auto;
      }

      .nav-actions .button {
        min-width: 88px;
        min-height: 38px;
        padding: 6px 10px;
        font-size: 12px;
        border-radius: 8px;
      }

      h1 {
        font-size: 34px;
      }

      h2 {
        font-size: 27px;
      }

      .hero-copy {
        font-size: 17px;
      }

      .hero-content {
        padding-top: 38px;
      }

      .hero-visual {
        height: auto;
        min-height: 260px;
        margin-bottom: 4px;
      }

      .hero-photo,
      .hero-photo img {
        min-height: 260px;
      }

      .hero-actions .button,
      .cta-actions .button {
        width: 100%;
      }

      .business-card,
      .service-grid,
      .scene-grid,
      .problem-grid,
      .process {
        grid-template-columns: 1fr;
      }

      .business-card div {
        border-right: 0;
        border-bottom: 1px solid var(--line);
      }

      .business-card div:last-child {
        border-bottom: 0;
      }

      .section {
        padding: 58px 0;
      }

      .footer-bar {
        gap: 12px;
        font-size: 13px;
      }
    }

footer {
    padding: 30px 0;
    background: #07192d;
    color: rgba(255, 255, 255, 0.82);
    font-size: 14px;
  }

  footer .wrap {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    gap: 18px;
    flex-wrap: wrap;
  }

  .footer-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: nowrap;
    white-space: nowrap;
  }

  .footer-links,
  .footer-info {
    display: flex;
    align-items: center;
    gap: 18px;
    white-space: nowrap;
    flex: 0 0 auto;
  }

  .footer-links {
    color: #fff;
    font-size: 16px;
    font-weight: 900;
  }

  .footer-links a {
    color: #fff;
    opacity: 0.92;
  }

  .footer-links a:hover {
    opacity: 1;
    color: #9dd9ff;
  }

  .footer-line-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    width: 58px;
    height: 30px;
    padding: 0;
    border-radius: 999px;
    background: linear-gradient(90deg, #00c300, #06c755);
    color: #fff !important;
    box-shadow: 0 10px 22px rgba(0, 195, 0, 0.18);
    text-decoration: none;
  }

  .footer-line-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 20px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.18);
    color: #fff;
    font-size: 11px;
    font-weight: 900;
    letter-spacing: 0.04em;
  }

  .footer-line-btn:hover {
    color: #fff !important;
    opacity: 1;
    transform: translateY(-1px);
  }

  .footer-info {
    margin-left: auto;
  }

  @media (max-width: 640px) {
    .footer-bar {
      gap: 12px;
      font-size: 13px;
      white-space: normal;
      justify-content: center;
    }

    .footer-links,
    .footer-info {
      width: 100%;
      white-space: normal;
      flex-wrap: wrap;
      justify-content: center;
      margin-left: 0;
    }
  }