:root {
      --bg: #f6f7f8;
      --bg-soft: #eef1f4;
      --ink: #20242a;
      --muted: #626b76;
      --line: #d8dde3;
      --silver: #aeb8c4;
      --blue: #496b86;
      --blue-deep: #263f55;
      --card: rgba(255,255,255,0.82);
      --shadow: 0 18px 48px rgba(55, 70, 88, 0.12);
      --radius: 24px;
      --container: 1160px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
      color: var(--ink);
      background:
        radial-gradient(circle at 12% 8%, rgba(180, 194, 208, 0.45) 0, rgba(180, 194, 208, 0) 28%),
        radial-gradient(circle at 86% 18%, rgba(223, 228, 232, 0.9) 0, rgba(223, 228, 232, 0) 30%),
        linear-gradient(180deg, #fbfbfa 0%, #f2f4f6 44%, #f8f8f6 100%);
      line-height: 1.7;
      overflow-x: hidden;
    }

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

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

    .container {
      width: min(100% - 32px, var(--container));
      margin: 0 auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 20;
      background: rgba(248, 249, 250, 0.82);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(210, 216, 222, 0.75);
    }

    .nav {
      min-height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      font-weight: 800;
      letter-spacing: 0.04em;
      color: var(--blue-deep);
      white-space: nowrap;
    }

    .logo-mark {
      width: 42px;
      height: 42px;
      border-radius: 16px;
      display: grid;
      place-items: center;
      color: #fff;
      background: linear-gradient(145deg, #5f7890, #aab4be);
      box-shadow: 0 12px 28px rgba(64, 83, 102, 0.22);
      font-size: 22px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 8px;
      flex-wrap: wrap;
      justify-content: flex-end;
    }

    .nav-links a {
      padding: 10px 12px;
      color: #34404b;
      font-size: 14px;
      border-radius: 999px;
      transition: background 0.25s ease, color 0.25s ease;
    }

    .nav-links a:hover {
      background: rgba(83, 110, 134, 0.1);
      color: var(--blue-deep);
    }

    .nav-cta {
      padding: 10px 16px;
      border-radius: 999px;
      background: #263f55;
      color: #fff !important;
      box-shadow: 0 12px 28px rgba(38, 63, 85, 0.2);
    }

    .menu-toggle {
      display: none;
      border: 1px solid var(--line);
      background: #fff;
      border-radius: 14px;
      min-width: 44px;
      min-height: 44px;
      color: var(--ink);
      font-size: 20px;
    }

    main {
      position: relative;
    }

    .hero {
      padding: 64px 0 38px;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.08fr) minmax(300px, 0.92fr);
      gap: 32px;
      align-items: center;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 13px;
      border: 1px solid rgba(154, 166, 178, 0.42);
      border-radius: 999px;
      color: #40576c;
      background: rgba(255,255,255,0.72);
      font-size: 14px;
      box-shadow: 0 8px 24px rgba(70, 83, 96, 0.06);
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #7d93a8;
      box-shadow: 0 0 0 6px rgba(125, 147, 168, 0.14);
    }

    h1 {
      margin: 22px 0 16px;
      font-size: clamp(34px, 6vw, 58px);
      line-height: 1.12;
      letter-spacing: -0.05em;
      color: #1f2933;
    }

    .hero-lead {
      margin: 0;
      max-width: 680px;
      color: var(--muted);
      font-size: clamp(16px, 2vw, 18px);
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 28px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 46px;
      padding: 12px 18px;
      border-radius: 999px;
      border: 1px solid transparent;
      font-weight: 700;
      transition: transform 0.22s ease, box-shadow 0.22s ease, background 0.22s ease;
    }

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

    .btn-primary {
      color: #fff;
      background: linear-gradient(135deg, #263f55, #5f7890);
      box-shadow: 0 16px 36px rgba(38, 63, 85, 0.22);
    }

    .btn-ghost {
      color: #263f55;
      background: rgba(255,255,255,0.7);
      border-color: rgba(139, 153, 166, 0.45);
    }

    .hero-note {
      margin-top: 22px;
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 10px;
      max-width: 680px;
    }

    .note-item {
      padding: 12px 14px;
      border-radius: 18px;
      background: rgba(255,255,255,0.68);
      border: 1px solid rgba(214, 220, 226, 0.75);
      color: #42505d;
      font-size: 14px;
    }

    .visual-card {
      position: relative;
      padding: 18px;
      border-radius: 34px;
      background: linear-gradient(145deg, rgba(255,255,255,0.9), rgba(236,240,244,0.82));
      border: 1px solid rgba(206, 214, 222, 0.8);
      box-shadow: var(--shadow);
      overflow: hidden;
    }

    .visual-card::before {
      content: "";
      position: absolute;
      inset: 16px;
      border-radius: 28px;
      border: 1px solid rgba(255,255,255,0.8);
      pointer-events: none;
    }

    .phone-frame {
      position: relative;
      aspect-ratio: 4 / 3;
      border-radius: 26px;
      overflow: hidden;
      background: #e7ebef;
    }

    .phone-frame img {
      width: 100%;
      height: 100%;
      object-fit: contain;
      padding: 18px;
    }

    .floating-info {
      position: relative;
      margin-top: 14px;
      display: grid;
      gap: 10px;
    }

    .glass-row {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      padding: 13px 14px;
      border-radius: 18px;
      background: rgba(255,255,255,0.72);
      border: 1px solid rgba(213, 220, 226, 0.86);
      color: #33414d;
    }

    .dot {
      width: 10px;
      height: 10px;
      flex: 0 0 auto;
      margin-top: 8px;
      border-radius: 50%;
      background: #8aa0b4;
    }

    section {
      padding: 38px 0;
    }

    .section-head {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 20px;
      margin-bottom: 22px;
    }

    .section-kicker {
      margin: 0 0 6px;
      color: #657485;
      font-weight: 700;
      font-size: 14px;
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }

    h2 {
      margin: 0;
      font-size: clamp(26px, 4vw, 38px);
      line-height: 1.2;
      letter-spacing: -0.03em;
      color: #202a34;
    }

    .section-desc {
      margin: 0;
      max-width: 520px;
      color: var(--muted);
    }

    .service-strip {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 14px;
    }

    .service-item {
      padding: 22px;
      border-radius: 24px;
      background: var(--card);
      border: 1px solid rgba(210, 216, 222, 0.78);
      box-shadow: 0 12px 32px rgba(54, 68, 82, 0.07);
      transition: transform 0.25s ease, box-shadow 0.25s ease;
    }

    .service-item:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow);
    }

    .service-icon {
      width: 42px;
      height: 42px;
      border-radius: 15px;
      display: grid;
      place-items: center;
      margin-bottom: 14px;
      background: linear-gradient(145deg, #eef2f5, #d8dee5);
      color: var(--blue-deep);
      font-weight: 800;
    }

    h3 {
      margin: 0 0 8px;
      font-size: 19px;
      color: #26323d;
    }

    .service-item p,
    .solution-card p,
    .policy-card p,
    .contact-card p {
      margin: 0;
      color: var(--muted);
      font-size: 15px;
    }

    .solution-panel {
      display: grid;
      grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
      gap: 18px;
      align-items: stretch;
    }

    .solution-feature {
      padding: 28px;
      border-radius: 28px;
      background: linear-gradient(145deg, rgba(38,63,85,0.96), rgba(90,112,132,0.92));
      color: #fff;
      box-shadow: 0 18px 48px rgba(38,63,85,0.22);
    }

    .solution-feature h3 {
      color: #fff;
      font-size: 24px;
    }

    .solution-feature p {
      color: rgba(255,255,255,0.84);
      margin: 10px 0 0;
    }

    .step-list {
      margin: 20px 0 0;
      padding: 0;
      list-style: none;
      display: grid;
      gap: 12px;
    }

    .step-list li {
      display: flex;
      gap: 12px;
      align-items: flex-start;
      color: rgba(255,255,255,0.92);
    }

    .step-list span {
      flex: 0 0 auto;
      min-width: 30px;
      height: 30px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      background: rgba(255,255,255,0.16);
      font-size: 13px;
      font-weight: 800;
    }

    .solution-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 14px;
    }

    .solution-card {
      padding: 22px;
      border-radius: 24px;
      background: rgba(255,255,255,0.78);
      border: 1px solid rgba(210, 216, 222, 0.78);
    }

    .policy-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 14px;
    }

    .policy-card {
      padding: 20px;
      border-radius: 22px;
      background: rgba(255,255,255,0.75);
      border: 1px solid rgba(210, 216, 222, 0.82);
    }

    .policy-card strong {
      display: block;
      margin-bottom: 8px;
      color: #26323d;
      font-size: 17px;
    }

    .contact-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.95fr);
      gap: 18px;
      align-items: stretch;
    }

    .contact-card {
      padding: 26px;
      border-radius: 28px;
      background: rgba(255,255,255,0.82);
      border: 1px solid rgba(210, 216, 222, 0.82);
      box-shadow: 0 16px 42px rgba(54,68,82,0.08);
    }

    .contact-list {
      margin: 18px 0 0;
      padding: 0;
      list-style: none;
      display: grid;
      gap: 12px;
    }

    .contact-list li {
      display: flex;
      gap: 10px;
      align-items: flex-start;
      padding: 12px 0;
      border-bottom: 1px solid rgba(216, 221, 227, 0.72);
      color: #374554;
    }

    .contact-list li:last-child {
      border-bottom: 0;
    }

    .label {
      min-width: 76px;
      color: #667382;
      font-weight: 700;
    }

    .qr-wrap {
      display: grid;
      grid-template-columns: 160px minmax(0, 1fr);
      gap: 18px;
      align-items: center;
      margin-top: 18px;
      padding: 16px;
      border-radius: 22px;
      background: #f3f5f7;
      border: 1px solid rgba(210,216,222,0.9);
    }

    .qr-wrap img {
      width: 160px;
      border-radius: 16px;
      background: #fff;
      padding: 8px;
      border: 1px solid #e1e5e9;
    }

    .map-link {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-top: 14px;
      min-height: 44px;
      padding: 10px 15px;
      border-radius: 999px;
      color: #fff;
      background: #496b86;
      font-weight: 700;
    }

    .faq-list {
      display: grid;
      gap: 12px;
    }

    .faq-item {
      border-radius: 22px;
      border: 1px solid rgba(210,216,222,0.86);
      background: rgba(255,255,255,0.8);
      overflow: hidden;
    }

    .faq-question {
      width: 100%;
      min-height: 58px;
      padding: 16px 18px;
      border: 0;
      background: transparent;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      color: #26323d;
      text-align: left;
      font-size: 16px;
      font-weight: 800;
      cursor: pointer;
    }

    .faq-question span:last-child {
      width: 28px;
      height: 28px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      background: #eef2f5;
      color: var(--blue-deep);
      flex: 0 0 auto;
      transition: transform 0.2s ease;
    }

    .faq-answer {
      display: none;
      padding: 0 18px 18px;
      color: var(--muted);
    }

    .faq-item.open .faq-answer {
      display: block;
    }

    .faq-item.open .faq-question span:last-child {
      transform: rotate(45deg);
    }

    .links-panel {
      padding: 24px;
      border-radius: 28px;
      background: linear-gradient(145deg, rgba(255,255,255,0.76), rgba(238,242,245,0.86));
      border: 1px solid rgba(210,216,222,0.88);
    }

    .link-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 16px;
    }

    .link-cloud a {
      padding: 9px 12px;
      border-radius: 999px;
      background: rgba(255,255,255,0.78);
      border: 1px solid rgba(207,214,221,0.9);
      color: #33495e;
      font-size: 14px;
      transition: background 0.2s ease, transform 0.2s ease;
    }

    .link-cloud a:hover {
      background: #fff;
      transform: translateY(-2px);
    }

    .site-footer {
      margin-top: 18px;
      padding: 28px 0;
      background: #eef1f4;
      color: #303a44;
      border-top: 1px solid #d6dce2;
    }

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

    .footer-links {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
    }

    .footer-links a {
      color: #34495d;
      font-size: 14px;
    }

    .reveal {
      opacity: 0;
      transform: translateY(18px);
      transition: opacity 0.65s ease, transform 0.65s ease;
    }

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

    @media (max-width: 920px) {
      .hero-grid,
      .solution-panel,
      .contact-grid {
        grid-template-columns: 1fr;
      }

      .service-strip,
      .policy-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .section-head {
        align-items: flex-start;
        flex-direction: column;
      }

      .nav-links {
        position: absolute;
        top: 72px;
        left: 16px;
        right: 16px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 12px;
        border-radius: 22px;
        background: rgba(255,255,255,0.96);
        border: 1px solid var(--line);
        box-shadow: var(--shadow);
      }

      .nav-links.open {
        display: flex;
      }

      .nav-links a {
        padding: 12px 14px;
      }

      .menu-toggle {
        display: inline-grid;
        place-items: center;
      }
    }

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

      .hero {
        padding: 42px 0 24px;
      }

      section {
        padding: 30px 0;
      }

      .hero-note,
      .service-strip,
      .solution-grid,
      .policy-grid,
      .qr-wrap {
        grid-template-columns: 1fr;
      }

      .hero-actions .btn {
        width: 100%;
      }

      .visual-card,
      .contact-card,
      .solution-feature {
        border-radius: 24px;
      }

      .qr-wrap img {
        width: 150px;
      }

      .footer-inner {
        align-items: flex-start;
        flex-direction: column;
      }
    }

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

      .reveal,
      .btn,
      .service-item,
      .link-cloud a {
        transition: none;
      }
    }