:root {
      --bg: #f3fbff;
      --bg-soft: #eaf7ff;
      --card: rgba(255, 255, 255, 0.78);
      --card-solid: #ffffff;
      --text: #173044;
      --muted: #5f7280;
      --line: rgba(91, 166, 214, 0.24);
      --primary: #1287c9;
      --primary-deep: #086799;
      --ice: #d9f4ff;
      --accent: #65c8ff;
      --shadow: 0 18px 45px rgba(21, 113, 164, 0.13);
      --radius-lg: 28px;
      --radius-md: 18px;
      --container: 1120px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at 12% 8%, rgba(122, 214, 255, 0.36), transparent 30%),
        radial-gradient(circle at 86% 18%, rgba(190, 234, 255, 0.65), transparent 28%),
        linear-gradient(180deg, #f7fdff 0%, #edf9ff 48%, #f8fcff 100%);
      line-height: 1.65;
      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(246, 252, 255, 0.82);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid var(--line);
    }

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

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      flex-shrink: 0;
      font-weight: 800;
      letter-spacing: 0.02em;
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: 15px;
      display: grid;
      place-items: center;
      color: #ffffff;
      background: linear-gradient(145deg, #0d88c9, #6ed1ff);
      box-shadow: 0 12px 28px rgba(18, 135, 201, 0.28);
      font-size: 22px;
    }

    .brand-text {
      display: flex;
      flex-direction: column;
      line-height: 1.2;
    }

    .brand-text span:first-child {
      font-size: 17px;
    }

    .brand-text span:last-child {
      font-size: 12px;
      color: var(--muted);
      font-weight: 600;
    }

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

    .nav-links a {
      padding: 10px 12px;
      border-radius: 999px;
      color: #28485d;
      font-size: 14px;
      font-weight: 650;
      transition: background 0.2s ease, color 0.2s ease;
    }

    .nav-links a:hover {
      background: rgba(18, 135, 201, 0.09);
      color: var(--primary-deep);
    }

    .nav-call {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 42px;
      padding: 0 16px;
      border-radius: 999px;
      background: #ffffff;
      color: var(--primary-deep);
      border: 1px solid rgba(18, 135, 201, 0.22);
      box-shadow: 0 10px 24px rgba(21, 113, 164, 0.09);
      font-size: 14px;
      font-weight: 800;
      white-space: nowrap;
    }

    .menu-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border: 1px solid var(--line);
      border-radius: 14px;
      background: #ffffff;
      color: var(--text);
      font-size: 22px;
      cursor: pointer;
    }

    .hero {
      padding: 54px 0 34px;
    }

    .hero-shell {
      position: relative;
      display: grid;
      grid-template-columns: minmax(0, 1.08fr) minmax(310px, 0.92fr);
      gap: 28px;
      align-items: stretch;
    }

    .hero-copy {
      position: relative;
      padding: clamp(28px, 5vw, 54px);
      border: 1px solid rgba(141, 207, 240, 0.45);
      border-radius: var(--radius-lg);
      background: linear-gradient(135deg, rgba(255, 255, 255, 0.92), rgba(222, 246, 255, 0.58));
      box-shadow: var(--shadow);
      overflow: hidden;
    }

    .hero-copy::after {
      content: "";
      position: absolute;
      right: -60px;
      top: -70px;
      width: 210px;
      height: 210px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(102, 203, 255, 0.36), transparent 68%);
      pointer-events: none;
      animation: floatGlow 7s ease-in-out infinite;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      border-radius: 999px;
      background: rgba(18, 135, 201, 0.08);
      border: 1px solid rgba(18, 135, 201, 0.16);
      color: var(--primary-deep);
      font-size: 13px;
      font-weight: 800;
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--accent);
      box-shadow: 0 0 0 6px rgba(101, 200, 255, 0.18);
    }

    h1 {
      margin: 18px 0 16px;
      font-size: clamp(31px, 6vw, 56px);
      line-height: 1.08;
      letter-spacing: -0.04em;
      color: #102c3f;
    }

    .hero-lead {
      margin: 0;
      max-width: 650px;
      color: #496678;
      font-size: clamp(16px, 2.2vw, 19px);
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 26px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 48px;
      padding: 0 20px;
      border-radius: 16px;
      font-weight: 800;
      border: 1px solid transparent;
      transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
      cursor: pointer;
    }

    .btn-primary {
      background: linear-gradient(135deg, #0b83c2, #65c8ff);
      color: #ffffff;
      box-shadow: 0 14px 28px rgba(18, 135, 201, 0.28);
    }

    .btn-secondary {
      background: rgba(255, 255, 255, 0.76);
      color: var(--primary-deep);
      border-color: rgba(18, 135, 201, 0.26);
    }

    .btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 16px 30px rgba(21, 113, 164, 0.18);
    }

    .hero-note {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      margin-top: 28px;
    }

    .note-item {
      padding: 14px;
      border-radius: 16px;
      background: rgba(255, 255, 255, 0.64);
      border: 1px solid rgba(141, 207, 240, 0.35);
    }

    .note-item strong {
      display: block;
      color: #12354c;
      font-size: 15px;
    }

    .note-item span {
      color: var(--muted);
      font-size: 13px;
    }

    .hero-visual {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .glass-card {
      border: 1px solid rgba(141, 207, 240, 0.48);
      border-radius: var(--radius-lg);
      background: rgba(255, 255, 255, 0.66);
      backdrop-filter: blur(16px);
      box-shadow: var(--shadow);
    }

    .diagnosis-card {
      padding: 24px;
    }

    .diagnosis-card h2 {
      margin: 0 0 14px;
      font-size: 23px;
      line-height: 1.25;
      color: #12354c;
    }

    .check-list {
      list-style: none;
      padding: 0;
      margin: 0;
      display: grid;
      gap: 11px;
    }

    .check-list li {
      display: flex;
      gap: 10px;
      align-items: flex-start;
      color: #425e70;
      font-size: 15px;
    }

    .check-list li::before {
      content: "✓";
      display: inline-grid;
      place-items: center;
      width: 22px;
      height: 22px;
      flex: 0 0 22px;
      border-radius: 8px;
      background: #e1f6ff;
      color: var(--primary-deep);
      font-weight: 900;
      line-height: 1;
    }

    .mini-contact {
      padding: 18px;
      display: grid;
      gap: 10px;
      background: linear-gradient(145deg, rgba(255, 255, 255, 0.78), rgba(218, 244, 255, 0.55));
    }

    .mini-contact strong {
      color: #12354c;
      font-size: 17px;
    }

    .mini-contact span {
      color: var(--muted);
      font-size: 14px;
    }

    section {
      padding: 38px 0;
    }

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

    .section-kicker {
      margin: 0 0 6px;
      color: var(--primary-deep);
      font-size: 13px;
      font-weight: 900;
      letter-spacing: 0.12em;
      text-transform: uppercase;
    }

    h2 {
      margin: 0;
      font-size: clamp(25px, 3.2vw, 38px);
      line-height: 1.18;
      letter-spacing: -0.03em;
      color: #122f43;
    }

    .section-desc {
      margin: 0;
      max-width: 440px;
      color: var(--muted);
      font-size: 15px;
    }

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

    .service-card {
      position: relative;
      min-height: 180px;
      padding: 22px;
      border-radius: 22px;
      background: rgba(255, 255, 255, 0.75);
      border: 1px solid rgba(141, 207, 240, 0.34);
      box-shadow: 0 12px 32px rgba(21, 113, 164, 0.08);
      overflow: hidden;
      transition: transform 0.24s ease, border-color 0.24s ease;
    }

    .service-card:hover {
      transform: translateY(-5px);
      border-color: rgba(18, 135, 201, 0.36);
    }

    .service-card::after {
      content: "";
      position: absolute;
      right: -34px;
      bottom: -38px;
      width: 100px;
      height: 100px;
      border-radius: 32px;
      background: rgba(101, 200, 255, 0.14);
      transform: rotate(18deg);
    }

    .service-icon {
      width: 44px;
      height: 44px;
      display: grid;
      place-items: center;
      border-radius: 15px;
      background: linear-gradient(135deg, #e5f8ff, #ffffff);
      color: var(--primary-deep);
      font-size: 22px;
      border: 1px solid rgba(18, 135, 201, 0.16);
      margin-bottom: 16px;
    }

    .service-card h3 {
      margin: 0 0 8px;
      font-size: 18px;
      color: #12354c;
    }

    .service-card p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
    }

    .solution-panel {
      display: grid;
      grid-template-columns: 0.96fr 1.04fr;
      gap: 18px;
      align-items: start;
    }

    .clean-steps {
      padding: 26px;
      border-radius: var(--radius-lg);
      background: linear-gradient(145deg, rgba(255, 255, 255, 0.86), rgba(224, 246, 255, 0.56));
      border: 1px solid rgba(141, 207, 240, 0.42);
      box-shadow: var(--shadow);
    }

    .step {
      display: grid;
      grid-template-columns: 44px 1fr;
      gap: 14px;
      padding: 16px 0;
      border-bottom: 1px solid var(--line);
    }

    .step:last-child {
      border-bottom: 0;
      padding-bottom: 0;
    }

    .step-num {
      width: 44px;
      height: 44px;
      display: grid;
      place-items: center;
      border-radius: 16px;
      background: #dff5ff;
      color: var(--primary-deep);
      font-weight: 900;
    }

    .step h3 {
      margin: 0 0 5px;
      font-size: 17px;
      color: #12354c;
    }

    .step p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
    }

    .notice-card {
      padding: 26px;
      border-radius: var(--radius-lg);
      background: #ffffff;
      border: 1px solid rgba(141, 207, 240, 0.36);
      box-shadow: 0 12px 34px rgba(21, 113, 164, 0.08);
    }

    .notice-card h3 {
      margin: 0 0 14px;
      font-size: 22px;
      color: #12354c;
    }

    .notice-card p {
      margin: 0 0 14px;
      color: #536c7d;
    }

    .notice-list {
      margin: 0;
      padding-left: 18px;
      color: #536c7d;
    }

    .notice-list li {
      margin: 7px 0;
    }

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

    .phone-photo {
      overflow: hidden;
      border-radius: 24px;
      background: #ffffff;
      border: 1px solid rgba(141, 207, 240, 0.35);
      box-shadow: 0 12px 32px rgba(21, 113, 164, 0.08);
    }

    .phone-photo img {
      width: 100%;
      aspect-ratio: 4 / 3;
      object-fit: cover;
      transition: transform 0.35s ease;
    }

    .phone-photo:hover img {
      transform: scale(1.04);
    }

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

    .policy-card {
      padding: 22px;
      border-radius: 22px;
      background: rgba(255, 255, 255, 0.76);
      border: 1px solid rgba(141, 207, 240, 0.34);
      box-shadow: 0 12px 32px rgba(21, 113, 164, 0.08);
    }

    .policy-card h3 {
      margin: 0 0 9px;
      color: #12354c;
      font-size: 18px;
    }

    .policy-card p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
    }

    .contact-panel {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 18px;
      align-items: stretch;
    }

    .contact-main {
      padding: 28px;
      border-radius: var(--radius-lg);
      background: linear-gradient(145deg, rgba(255, 255, 255, 0.9), rgba(219, 245, 255, 0.58));
      border: 1px solid rgba(141, 207, 240, 0.42);
      box-shadow: var(--shadow);
    }

    .contact-list {
      display: grid;
      gap: 12px;
      margin: 22px 0 0;
    }

    .contact-row {
      display: grid;
      grid-template-columns: 88px 1fr;
      gap: 12px;
      padding: 13px 0;
      border-bottom: 1px solid var(--line);
    }

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

    .contact-row strong {
      color: #12354c;
    }

    .contact-row span,
    .contact-row a {
      color: #536c7d;
    }

    .qr-card {
      padding: 22px;
      border-radius: var(--radius-lg);
      background: #ffffff;
      border: 1px solid rgba(141, 207, 240, 0.36);
      box-shadow: 0 12px 34px rgba(21, 113, 164, 0.08);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      gap: 16px;
    }

    .qr-box {
      padding: 12px;
      border-radius: 20px;
      background: linear-gradient(135deg, #f0fbff, #ffffff);
      border: 1px solid rgba(18, 135, 201, 0.18);
    }

    .qr-box img {
      width: 100%;
      border-radius: 14px;
    }

    .qr-card h3 {
      margin: 0 0 6px;
      color: #12354c;
      font-size: 20px;
    }

    .qr-card p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
    }

    .map-link {
      color: #0066cc;
      font-weight: 800;
      word-break: break-word;
    }

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

    .faq-item {
      border-radius: 20px;
      background: rgba(255, 255, 255, 0.78);
      border: 1px solid rgba(141, 207, 240, 0.34);
      box-shadow: 0 10px 26px rgba(21, 113, 164, 0.07);
      overflow: hidden;
    }

    .faq-question {
      width: 100%;
      min-height: 58px;
      padding: 16px 18px;
      border: 0;
      background: transparent;
      color: #12354c;
      font: inherit;
      font-weight: 850;
      text-align: left;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      cursor: pointer;
    }

    .faq-question span:last-child {
      width: 28px;
      height: 28px;
      border-radius: 10px;
      display: grid;
      place-items: center;
      background: #e3f7ff;
      color: var(--primary-deep);
      flex-shrink: 0;
      transition: transform 0.2s ease;
    }

    .faq-answer {
      display: none;
      padding: 0 18px 18px;
      color: var(--muted);
      font-size: 15px;
    }

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

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

    .related {
      padding: 24px;
      border-radius: var(--radius-lg);
      background: rgba(255, 255, 255, 0.72);
      border: 1px solid rgba(141, 207, 240, 0.34);
      box-shadow: 0 12px 32px rgba(21, 113, 164, 0.08);
    }

    .related-links {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
      margin-top: 16px;
    }

    .related-links a {
      padding: 13px 14px;
      border-radius: 15px;
      background: #f4fbff;
      border: 1px solid rgba(18, 135, 201, 0.14);
      color: #31546a;
      font-weight: 700;
      font-size: 14px;
      transition: background 0.2s ease, color 0.2s ease;
    }

    .related-links a:hover {
      background: #e5f7ff;
      color: var(--primary-deep);
    }

    .site-footer {
      margin-top: 14px;
      padding: 28px 0;
      background: #e9f7ff;
      border-top: 1px solid rgba(18, 135, 201, 0.18);
      color: #28485d;
    }

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

    .footer-links {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      font-size: 14px;
      font-weight: 700;
    }

    .footer-links a {
      color: #31546a;
    }

    .copyright {
      margin: 0;
      color: #536c7d;
      font-size: 13px;
    }

    .reveal {
      opacity: 0;
      transform: translateY(18px);
      transition: opacity 0.7s ease, transform 0.7s ease;
    }

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

    @keyframes floatGlow {
      0%, 100% {
        transform: translateY(0) scale(1);
      }
      50% {
        transform: translateY(18px) scale(1.05);
      }
    }

    @media (max-width: 980px) {
      .menu-toggle {
        display: inline-grid;
        place-items: center;
      }

      .nav-links {
        position: absolute;
        left: 16px;
        right: 16px;
        top: 72px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 14px;
        border-radius: 20px;
        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;
      }

      .nav-call {
        display: none;
      }

      .hero-shell,
      .solution-panel,
      .contact-panel {
        grid-template-columns: 1fr;
      }

      .service-grid,
      .gallery {
        grid-template-columns: repeat(2, 1fr);
      }

      .policy-wrap {
        grid-template-columns: repeat(2, 1fr);
      }

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

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

      .hero {
        padding-top: 30px;
      }

      .hero-copy,
      .diagnosis-card,
      .clean-steps,
      .notice-card,
      .contact-main,
      .qr-card,
      .related {
        border-radius: 22px;
      }

      .hero-note,
      .service-grid,
      .gallery,
      .policy-wrap,
      .related-links {
        grid-template-columns: 1fr;
      }

      .contact-row {
        grid-template-columns: 1fr;
        gap: 4px;
      }

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

      .brand-text span:last-child {
        display: none;
      }

      section {
        padding: 30px 0;
      }

      .btn {
        width: 100%;
      }
    }