:root {
      --page-shell: min(1380px, calc(100% - 48px));
    }

    body.contact-page {
      background:
        radial-gradient(circle at 18% 12%, rgba(232, 255, 0, 0.22), transparent 20%),
        radial-gradient(circle at 84% 10%, rgba(0, 47, 167, 0.16), transparent 24%),
        linear-gradient(180deg, #F7FAFF 0%, #E9EEFF 100%);
    }

    body.contact-page::before {
      background:
        linear-gradient(rgba(0, 47, 167, 0.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 47, 167, 0.045) 1px, transparent 1px);
      background-size: 44px 44px, 44px 44px;
    }

    .contact-page nav {
      position: fixed;
      top: 18px;
      left: 24px;
      right: 24px;
      height: 66px;
      padding: 0 28px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      border: 1px solid rgba(0, 47, 167, 0.14);
      border-radius: 12px;
      background: rgba(255, 255, 255, 0.78);
      backdrop-filter: blur(16px);
      box-shadow: 0 18px 44px rgba(0, 47, 167, 0.10);
      z-index: 1000;
    }

    .contact-page .logo {
      display: inline-flex;
      align-items: center;
      flex: 0 0 auto;
      gap: 0;
      font-size: 0;
      color: #002FA7;
      line-height: 0;
      text-decoration: none;
    }

    .contact-page .logo img {
      width: 138px;
      height: auto;
      border-radius: 0;
      display: block;
    }

    .contact-page .nav-links {
      display: flex;
      gap: 28px;
      list-style: none;
      align-items: center;
    }

    .contact-page .nav-links a {
      color: #0D1530;
      font-size: 0.86rem;
      font-weight: 800;
      text-decoration: none;
      transition: color 0.22s ease;
    }

    .contact-page .nav-links a:hover,
    .contact-page .nav-links a.is-active {
      color: #002FA7;
    }

    .contact-page .dropdown {
      position: relative;
    }

    .contact-page .dropdown-menu {
      position: absolute;
      top: 100%;
      left: 0;
      display: none;
      min-width: 210px;
      margin-top: 12px;
      padding: 8px 0;
      border: 1px solid rgba(0, 47, 167, 0.14);
      border-radius: 8px;
      background: rgba(255, 255, 255, 0.94);
      box-shadow: 0 20px 50px rgba(0, 47, 167, 0.10);
    }

    .contact-page .dropdown:hover .dropdown-menu {
      display: block;
    }

    .contact-page .dropdown-menu a {
      display: block;
      padding: 9px 20px;
      font-size: 0.84rem;
    }

    .contact-page .cta-nav {
      color: #002FA7;
      font-size: 0.9rem;
      font-weight: 800;
      text-decoration: none;
    }

    .contact-page .mobile-menu { display: none; position: relative; }

    .contact-page .mobile-menu-toggle {
      list-style: none;
      width: 42px;
      min-height: 42px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      padding: 0;
      border: 1px solid rgba(0, 47, 167, 0.14);
      border-radius: 999px;
      background: rgba(255,255,255,0.86);
      color: #002FA7;
      cursor: pointer;
      font-size: 0.84rem;
      font-weight: 900;
      line-height: 1;
    }

    .contact-page .mobile-menu-toggle::-webkit-details-marker { display: none; }

    .contact-page .mobile-menu-icon,
    .contact-page .mobile-menu-icon::before,
    .contact-page .mobile-menu-icon::after {
      display: block;
      width: 16px;
      height: 2px;
      border-radius: 999px;
      background: currentColor;
      content: "";
    }

    .contact-page .mobile-menu-icon { position: relative; }
    .contact-page .mobile-menu-icon::before,
    .contact-page .mobile-menu-icon::after { position: absolute; left: 0; }
    .contact-page .mobile-menu-icon::before { top: -5px; }
    .contact-page .mobile-menu-icon::after { top: 5px; }

    .contact-page .mobile-menu-panel {
      position: absolute;
      top: calc(100% + 12px);
      right: 0;
      width: min(310px, calc(100vw - 24px));
      max-height: calc(100vh - 96px);
      overflow: auto;
      display: grid;
      gap: 6px;
      padding: 10px;
      border: 1px solid rgba(0, 47, 167, 0.14);
      border-radius: 12px;
      background: rgba(255,255,255,0.96);
      box-shadow: 0 20px 50px rgba(0,47,167,0.16);
      backdrop-filter: blur(16px);
    }

    .contact-page .mobile-menu:not([open]) .mobile-menu-panel { display: none; }

    .contact-page .mobile-menu-link,
    .contact-page .mobile-menu-primary,
    .contact-page .mobile-subnav a {
      display: flex;
      align-items: center;
      min-height: 42px;
      padding: 0 14px;
      border-radius: 8px;
      text-decoration: none;
      font-size: 0.92rem;
      font-weight: 850;
    }

    .contact-page .mobile-menu-link,
    .contact-page .mobile-menu-primary { color: #0D1530; }

    .contact-page .mobile-menu-link:hover,
    .contact-page .mobile-menu-link:focus-visible,
    .contact-page .mobile-menu-link.is-active,
    .contact-page .mobile-menu-primary:hover,
    .contact-page .mobile-menu-primary:focus-visible,
    .contact-page .mobile-menu-primary.is-active {
      color: #002FA7;
      background: rgba(233,238,255,0.74);
    }

    .contact-page .mobile-menu-section {
      display: grid;
      gap: 4px;
      padding: 4px;
      border: 1px solid rgba(0,47,167,0.10);
      border-radius: 10px;
      background: rgba(248,250,255,0.68);
    }

    .contact-page .mobile-menu-primary {
      min-height: 40px;
      color: #002FA7;
      font-weight: 950;
    }

    .contact-page .mobile-subnav {
      display: grid;
      gap: 2px;
      padding: 2px 0 4px 14px;
      border-left: 2px solid rgba(0,47,167,0.18);
      margin-left: 14px;
    }

    .contact-page .mobile-subnav a {
      min-height: 36px;
      padding: 0 12px;
      color: #536079;
      font-size: 0.84rem;
      font-weight: 800;
    }

    .contact-page .mobile-subnav a:hover,
    .contact-page .mobile-subnav a:focus-visible {
      color: #002FA7;
      background: rgba(233,238,255,0.62);
    }

    .contact-stage {
      padding: 144px 24px 104px;
    }

    .contact-shell {
      width: var(--page-shell);
      margin: 0 auto;
      display: grid;
      gap: 36px;
    }

    .contact-hero-band {
      display: grid;
      grid-template-columns: minmax(0, 0.94fr) minmax(440px, 1.06fr);
      gap: 22px;
      align-items: stretch;
    }

    .hero-card,
    .contact-form-card,
    .contact-details-card,
    .contact-proof-card,
    .contact-info-card {
      position: relative;
      overflow: hidden;
      border: 1px solid rgba(0, 47, 167, 0.14);
      border-radius: 14px;
      background: rgba(255, 255, 255, 0.82);
      box-shadow: 0 20px 50px rgba(0, 47, 167, 0.08);
    }

    .hero-card {
      min-height: 100%;
      padding: 62px 50px 46px;
      background:
        linear-gradient(120deg, rgba(173, 191, 86, 0.88) 0%, rgba(173, 191, 86, 0.42) 18%, transparent 18%),
        linear-gradient(145deg, #071742 0%, #0B2D8E 62%, #1A46D7 100%);
      color: #FFFFFF;
    }

    .hero-card::before {
      content: "";
      position: absolute;
      right: 36px;
      top: 32px;
      width: 180px;
      height: 180px;
      border: 1px solid rgba(255, 255, 255, 0.16);
      background: linear-gradient(145deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.02));
      transform: rotate(9deg);
      opacity: 0.95;
      pointer-events: none;
    }

    .hero-card::after {
      content: "CONTACT";
      position: absolute;
      right: 42px;
      bottom: 44px;
      color: rgba(255, 255, 255, 0.08);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
      font-size: clamp(3.4rem, 6vw, 6rem);
      font-weight: 900;
      letter-spacing: 0;
      line-height: 0.85;
      pointer-events: none;
    }

    .hero-copy {
      position: relative;
      z-index: 1;
      max-width: 620px;
    }

    .section-tag {
      display: block;
      margin-bottom: 14px;
      color: #002FA7;
      font-size: 0.72rem;
      font-weight: 900;
      text-transform: uppercase;
      letter-spacing: 0.16em;
    }

    .hero-card .section-tag {
      color: rgba(255, 255, 255, 0.72);
    }

    .hero-copy h1 {
      max-width: 640px;
      margin-bottom: 24px;
      color: #FFFFFF;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
      font-size: clamp(2.9rem, 5.4vw, 5.1rem);
      font-weight: 900;
      letter-spacing: 0;
      line-height: 0.94;
      white-space: nowrap;
    }

    .hero-copy h1 span {
      color: #DCE7FF;
    }

    .hero-copy p {
      max-width: 560px;
      color: rgba(255, 255, 255, 0.84);
      font-size: 1.02rem;
      line-height: 1.9;
    }

    .hero-actions {
      display: flex;
      gap: 14px;
      flex-wrap: wrap;
      margin-top: 38px;
    }

    .cta-btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 50px;
      padding: 0 28px;
      border: 1px solid rgba(21, 21, 21, 0.16);
      border-radius: 10px;
      color: #FFFFFF;
      font-weight: 900;
      text-decoration: none;
      background: #002FA7;
      transition: transform 0.22s ease, box-shadow 0.22s ease;
    }

    .cta-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 18px 36px rgba(0, 47, 167, 0.22);
    }

    .submit-hero-btn {
      background: #E8FF00;
      color: #0D1530;
      border-color: rgba(232, 255, 0, 0.58);
      box-shadow: 0 16px 34px rgba(232, 255, 0, 0.18);
    }

    .submit-hero-btn:hover {
      box-shadow: 0 20px 40px rgba(232, 255, 0, 0.24);
    }

    .cta-btn.ghost {
      color: #FFFFFF;
      background: rgba(255, 255, 255, 0.08);
      border-color: rgba(255, 255, 255, 0.18);
    }

    .hero-meta {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
      margin-top: 34px;
    }

    .hero-meta span {
      display: inline-flex;
      align-items: center;
      min-height: 38px;
      padding: 0 14px;
      border: 1px solid rgba(255, 255, 255, 0.16);
      border-radius: 999px;
      color: #FFFFFF;
      font-size: 0.8rem;
      font-weight: 900;
      background: rgba(255, 255, 255, 0.08);
    }

    .contact-form-card h2,
    .contact-proof-card h2 {
      margin-bottom: 6px;
      color: #0D1530;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
      font-size: 1.62rem;
      font-weight: 900;
      letter-spacing: 0;
      line-height: 1.08;
    }

    .contact-form-intro p,
    .contact-proof-card > p {
      color: #536079;
      font-size: 0.96rem;
      line-height: 1.84;
    }

    .contact-details-card {
      display: grid;
      gap: 20px;
      padding: 32px;
      background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.90), rgba(248, 250, 255, 0.86));
    }

    .contact-details-card h2 {
      margin-bottom: 6px;
      color: #0D1530;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
      font-size: 1.62rem;
      font-weight: 900;
      letter-spacing: 0;
      line-height: 1.08;
    }

    .contact-details-card > p {
      color: #536079;
      font-size: 0.96rem;
      line-height: 1.84;
    }

    .contact-info-stack {
      display: grid;
      gap: 14px;
      margin-top: 10px;
    }

    .contact-info-card {
      padding: 18px 18px 18px 20px;
      display: grid;
      grid-template-columns: 48px minmax(0, 1fr);
      gap: 16px;
      align-items: start;
      min-height: 116px;
    }

    .icon-badge {
      width: 40px;
      height: 40px;
      border-radius: 12px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: #002FA7;
      background: rgba(0, 47, 167, 0.10);
      font-size: 1rem;
      font-weight: 900;
    }

    .contact-info-card strong {
      display: block;
      margin-bottom: 6px;
      color: #0D1530;
      font-size: 1rem;
      font-weight: 900;
      line-height: 1.4;
    }

    .contact-info-card p,
    .contact-info-card span {
      display: block;
      color: #536079;
      font-size: 0.92rem;
      line-height: 1.74;
    }

    .contact-main-grid {
      display: grid;
      grid-template-columns: minmax(0, 0.84fr) minmax(320px, 1.16fr);
      gap: 32px;
      align-items: start;
    }

    .contact-form-card,
    .contact-proof-card {
      padding: 32px;
    }

    .contact-form-card {
      display: grid;
      gap: 22px;
      background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(247, 250, 255, 0.92));
      box-shadow: 0 30px 60px rgba(0, 47, 167, 0.12);
    }

    .contact-form-intro {
      display: grid;
      gap: 8px;
    }

    .scan-card {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 118px;
      gap: 16px;
      padding: 16px 18px;
      border: 1px solid rgba(0, 47, 167, 0.12);
      border-radius: 12px;
      background: linear-gradient(145deg, rgba(233, 238, 255, 0.88), rgba(255, 255, 255, 0.92));
    }

    .scan-card strong {
      display: block;
      margin-bottom: 8px;
      color: #0D1530;
      font-size: 1rem;
      font-weight: 900;
    }

    .scan-card p {
      color: #536079;
      font-size: 0.92rem;
      line-height: 1.6;
    }

    .scan-card ul {
      margin: 10px 0 0;
      padding-left: 18px;
      color: #536079;
      font-size: 0.88rem;
      line-height: 1.55;
    }

    .qr-image {
      width: 118px;
      height: 118px;
      object-fit: contain;
      padding: 0;
      border-radius: 12px;
      border: 1px solid rgba(0, 47, 167, 0.16);
      background: #FFFFFF;
    }

    .qr-caption {
      display: block;
      margin-top: 8px;
      color: #536079;
      font-size: 0.76rem;
      text-align: center;
    }

    .preview-success[hidden] {
      display: none;
    }

    .preview-success {
      padding: 16px 18px;
      border: 1px solid rgba(10, 123, 86, 0.22);
      border-left: 5px solid #0A7B56;
      border-radius: 12px;
      color: #0A7B56;
      background: rgba(10, 123, 86, 0.08);
    }

    .contact-form {
      display: grid;
      gap: 18px;
    }

    .field-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

    .field {
      display: grid;
      gap: 8px;
    }

    .field label {
      color: #0D1530;
      font-size: 0.9rem;
      font-weight: 800;
    }

    .field input,
    .field textarea {
      width: 100%;
      min-height: 52px;
      padding: 14px 16px;
      border: 1px solid rgba(0, 47, 167, 0.18);
      border-radius: 10px;
      color: #0D1530;
      background: rgba(255, 255, 255, 0.92);
      outline: none;
      transition: border-color 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
    }

    .field textarea {
      min-height: 132px;
      resize: vertical;
    }

    .field input:focus,
    .field textarea:focus {
      border-color: #002FA7;
      box-shadow: 0 0 0 3px rgba(0, 47, 167, 0.14);
      background: #FFFFFF;
    }

    .submit-row {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      align-items: center;
      justify-content: space-between;
    }

    .submit-note {
      max-width: 360px;
      color: #536079;
      font-size: 0.82rem;
      line-height: 1.72;
    }

    .submit-btn {
      min-width: 220px;
      border: 0;
      cursor: pointer;
    }

    .contact-proof-card,
    .contact-details-card {
      display: grid;
      gap: 16px;
    }

    .why-list {
      display: grid;
      gap: 14px;
      margin-top: 2px;
      padding-left: 22px;
      list-style: disc;
      list-style-position: outside;
    }

    .why-list li {
      color: #536079;
      line-height: 1.72;
    }

    .footer-strip {
      width: var(--page-shell);
      margin: 0 auto;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      border: 1px solid rgba(0, 47, 167, 0.14);
      border-radius: 14px;
      overflow: hidden;
      background: rgba(255, 255, 255, 0.82);
      box-shadow: 0 20px 50px rgba(0, 47, 167, 0.08);
    }

    .footer-strip div {
      min-height: 124px;
      padding: 22px 20px;
      border-right: 1px solid rgba(0, 47, 167, 0.14);
    }

    .footer-strip div:last-child {
      border-right: 0;
    }

    .footer-strip strong {
      display: block;
      margin-bottom: 10px;
      color: #002FA7;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
      font-size: 1.26rem;
      font-weight: 900;
      line-height: 1.1;
    }

    .footer-strip span {
      color: #536079;
      font-size: 0.88rem;
      line-height: 1.7;
    }

    .copyright {
      width: var(--page-shell);
      margin: 18px auto 0;
      padding: 18px 0 0;
      border-top: 1px solid rgba(0, 47, 167, 0.10);
      color: #7A859D;
      font-size: 0.78rem;
      text-align: center;
    }

    @media (max-width: 1100px) {
      .contact-hero-band,
      .contact-main-grid {
        grid-template-columns: 1fr;
      }

      .footer-strip {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 900px) {
      .contact-page nav {
        top: 10px;
        left: 12px;
        right: 12px;
        padding: 0 16px;
        gap: 12px;
      }

      .contact-page .logo img {
        width: 120px;
        height: auto;
        border-radius: 0;
        display: block;
      }

      .contact-page .nav-links {
        display: none;
      }

      .contact-page .mobile-menu {
        display: block;
      }

      .contact-page .cta-nav {
        display: none;
      }

      .contact-stage {
        padding: 112px 12px 56px;
      }

      .hero-card,
      .contact-form-card,
      .contact-details-card,
      .contact-proof-card {
        padding: 24px;
      }

      .hero-card {
        min-height: auto;
      }

      .hero-card::before {
        width: 144px;
        height: 144px;
        right: 22px;
        top: 26px;
      }

      .hero-card::after {
        right: 20px;
        bottom: 24px;
        font-size: 3.2rem;
      }

      .hero-copy h1 {
        font-size: 2.7rem;
      }

      .field-grid,
      .scan-card,
      .footer-strip {
        grid-template-columns: 1fr;
      }

      .contact-details-card {
        order: 1;
      }

      .contact-proof-card {
        order: 2;
      }

      .submit-row {
        align-items: stretch;
      }

      .submit-note,
      .submit-btn {
        width: 100%;
        max-width: none;
      }
    }