:root {
      --bg: #fbf8f1;
      --bg-soft: #f1eadf;
      --card: rgba(255, 253, 247, 0.86);
      --card-solid: #fffdf8;
      --text: #2f332f;
      --muted: #667065;
      --brand: #6f8f7a;
      --brand-deep: #3f6f5b;
      --accent: #c98f72;
      --accent-soft: #f3ddd0;
      --line: rgba(79, 92, 78, 0.16);
      --shadow: 0 18px 45px rgba(84, 93, 76, 0.12);
      --radius-xl: 30px;
      --radius-lg: 22px;
      --radius-md: 16px;
      --container: 1160px;
      --pad: clamp(18px, 4vw, 32px);
    }

    * {
      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(--text);
      background:
        radial-gradient(circle at 8% 8%, rgba(195, 216, 190, 0.55), transparent 28%),
        radial-gradient(circle at 88% 18%, rgba(239, 205, 187, 0.52), transparent 30%),
        radial-gradient(circle at 45% 82%, rgba(192, 211, 224, 0.45), transparent 32%),
        linear-gradient(180deg, #fbf8f1 0%, #f7f1e8 46%, #faf7ef 100%);
      line-height: 1.7;
      overflow-x: hidden;
    }

    body.menu-open {
      overflow: hidden;
    }

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

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

    .container {
      width: min(100% - var(--pad) * 2, var(--container));
      margin: 0 auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(251, 248, 241, 0.78);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(111, 143, 122, 0.16);
    }

    .nav {
      min-height: 76px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      flex: 0 0 auto;
      font-weight: 800;
      letter-spacing: 0.04em;
    }

    .logo-mark {
      width: 42px;
      height: 42px;
      border-radius: 15px;
      display: grid;
      place-items: center;
      color: #ffffff;
      background: linear-gradient(135deg, #6f8f7a, #bd967d);
      box-shadow: 0 10px 24px rgba(98, 120, 92, 0.22);
      font-size: 22px;
    }

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

    .brand-name {
      font-size: 17px;
      color: var(--text);
    }

    .brand-sub {
      margin-top: 3px;
      font-size: 12px;
      color: var(--muted);
      font-weight: 500;
      letter-spacing: 0;
    }

    .nav-links {
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 8px;
      flex: 1 1 auto;
    }

    .nav-links a {
      padding: 9px 12px;
      border-radius: 999px;
      font-size: 14px;
      color: #3e463e;
      transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
    }

    .nav-links a:hover {
      background: rgba(111, 143, 122, 0.14);
      color: var(--brand-deep);
      transform: translateY(-1px);
    }

    .nav-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 40px;
      padding: 9px 16px;
      border-radius: 999px;
      background: #315f4d;
      color: #ffffff;
      font-size: 14px;
      font-weight: 700;
      box-shadow: 0 12px 26px rgba(49, 95, 77, 0.2);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
      flex: 0 0 auto;
    }

    .nav-cta:hover {
      transform: translateY(-2px);
      box-shadow: 0 16px 32px rgba(49, 95, 77, 0.24);
    }

    .menu-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border: 1px solid var(--line);
      background: rgba(255, 253, 247, 0.84);
      border-radius: 14px;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      color: var(--text);
    }

    .menu-toggle span {
      width: 18px;
      height: 2px;
      background: currentColor;
      display: block;
      position: relative;
      border-radius: 2px;
    }

    .menu-toggle span::before,
    .menu-toggle span::after {
      content: "";
      position: absolute;
      left: 0;
      width: 18px;
      height: 2px;
      background: currentColor;
      border-radius: 2px;
      transition: transform 0.2s ease, top 0.2s ease;
    }

    .menu-toggle span::before {
      top: -6px;
    }

    .menu-toggle span::after {
      top: 6px;
    }

    .mobile-panel {
      display: none;
    }

    main {
      position: relative;
    }

    section {
      scroll-margin-top: 90px;
    }

    .hero {
      padding: clamp(48px, 7vw, 88px) 0 clamp(34px, 6vw, 66px);
    }

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.04fr) minmax(320px, 0.76fr);
      gap: clamp(24px, 4vw, 48px);
      align-items: center;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      border-radius: 999px;
      color: var(--brand-deep);
      background: rgba(111, 143, 122, 0.13);
      border: 1px solid rgba(111, 143, 122, 0.18);
      font-size: 13px;
      font-weight: 700;
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--accent);
      box-shadow: 0 0 0 6px rgba(201, 143, 114, 0.14);
    }

    h1 {
      margin: 18px 0 16px;
      font-size: clamp(34px, 7vw, 64px);
      line-height: 1.08;
      letter-spacing: -0.05em;
      color: #263126;
    }

    .hero-lead {
      margin: 0;
      max-width: 680px;
      color: #4f5a4f;
      font-size: clamp(16px, 2.3vw, 19px);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 46px;
      padding: 12px 18px;
      border-radius: 999px;
      font-weight: 750;
      border: 1px solid transparent;
      transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
      cursor: pointer;
    }

    .btn-primary {
      color: #ffffff;
      background: linear-gradient(135deg, #386b57, #75977d);
      box-shadow: 0 16px 34px rgba(56, 107, 87, 0.2);
    }

    .btn-secondary {
      color: #315342;
      background: rgba(255, 253, 247, 0.72);
      border-color: rgba(64, 86, 66, 0.18);
    }

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

    .hero-notes {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 10px;
      margin-top: 26px;
      max-width: 700px;
    }

    .note {
      padding: 12px 14px;
      border-radius: 18px;
      background: rgba(255, 253, 247, 0.58);
      border: 1px solid rgba(98, 111, 93, 0.13);
      color: #4b574b;
      font-size: 14px;
    }

    .visual-card {
      position: relative;
      padding: 18px;
      border-radius: var(--radius-xl);
      background: linear-gradient(145deg, rgba(255, 253, 247, 0.92), rgba(244, 235, 223, 0.74));
      border: 1px solid rgba(103, 122, 98, 0.16);
      box-shadow: var(--shadow);
      overflow: hidden;
      animation: floatIn 0.8s ease both;
    }

    .visual-card::before {
      content: "";
      position: absolute;
      inset: 18px auto auto -40px;
      width: 130px;
      height: 130px;
      border-radius: 42% 58% 64% 36%;
      background: rgba(194, 216, 190, 0.5);
      filter: blur(2px);
      z-index: 0;
    }

    .visual-card::after {
      content: "";
      position: absolute;
      right: -38px;
      bottom: -38px;
      width: 150px;
      height: 150px;
      border-radius: 50%;
      background: rgba(227, 193, 176, 0.44);
      z-index: 0;
    }

    .device-frame {
      position: relative;
      z-index: 1;
      padding: 14px;
      border-radius: 28px;
      background: #38423d;
      box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.08);
    }

    .device-screen {
      min-height: 300px;
      border-radius: 20px;
      padding: 22px;
      background:
        radial-gradient(circle at 25% 20%, rgba(255, 255, 255, 0.18), transparent 22%),
        linear-gradient(135deg, #111816, #27342f 48%, #1b2421);
      color: #ffffff;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .sound-pill {
      align-self: flex-start;
      display: inline-flex;
      align-items: center;
      gap: 9px;
      padding: 9px 12px;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.12);
      color: #ffffff;
      font-size: 13px;
    }

    .sound-wave {
      display: inline-flex;
      gap: 3px;
      align-items: center;
    }

    .sound-wave i {
      width: 3px;
      height: 12px;
      border-radius: 3px;
      background: #d6e6d1;
      animation: wave 1.1s ease-in-out infinite;
    }

    .sound-wave i:nth-child(2) {
      height: 18px;
      animation-delay: 0.15s;
    }

    .sound-wave i:nth-child(3) {
      height: 9px;
      animation-delay: 0.3s;
    }

    .screen-copy strong {
      display: block;
      font-size: 26px;
      margin-bottom: 8px;
      color: #f7f2e9;
    }

    .screen-copy span {
      color: rgba(255, 255, 255, 0.74);
      font-size: 14px;
    }

    .visual-list {
      position: relative;
      z-index: 1;
      display: grid;
      gap: 10px;
      margin-top: 16px;
    }

    .visual-list div {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      padding: 12px 14px;
      border-radius: 16px;
      background: rgba(255, 253, 247, 0.68);
      border: 1px solid rgba(86, 99, 83, 0.1);
      color: #445044;
      font-size: 14px;
    }

    .visual-list div::before {
      content: "";
      width: 9px;
      height: 9px;
      border-radius: 50%;
      margin-top: 8px;
      flex: 0 0 auto;
      background: var(--brand);
    }

    .section {
      padding: clamp(34px, 6vw, 70px) 0;
    }

    .section-head {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 24px;
      margin-bottom: 24px;
    }

    .section-kicker {
      margin: 0 0 8px;
      color: var(--brand-deep);
      font-size: 13px;
      font-weight: 800;
      letter-spacing: 0.08em;
    }

    h2 {
      margin: 0;
      color: #273127;
      font-size: clamp(25px, 4vw, 40px);
      line-height: 1.2;
      letter-spacing: -0.035em;
    }

    .section-desc {
      margin: 0;
      max-width: 430px;
      color: var(--muted);
      font-size: 15px;
    }

    .soft-panel {
      padding: clamp(20px, 4vw, 34px);
      border-radius: var(--radius-xl);
      background: rgba(255, 253, 247, 0.64);
      border: 1px solid rgba(96, 112, 93, 0.13);
      box-shadow: 0 14px 36px rgba(74, 88, 70, 0.08);
    }

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

    .service-card {
      padding: 20px;
      min-height: 168px;
      border-radius: 24px;
      background: linear-gradient(180deg, rgba(255, 255, 253, 0.86), rgba(250, 244, 235, 0.78));
      border: 1px solid rgba(92, 106, 89, 0.12);
      transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
    }

    .service-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 18px 38px rgba(70, 84, 65, 0.12);
      border-color: rgba(111, 143, 122, 0.28);
    }

    .icon-dot {
      width: 38px;
      height: 38px;
      border-radius: 15px;
      display: grid;
      place-items: center;
      margin-bottom: 14px;
      color: #ffffff;
      background: linear-gradient(135deg, #78977c, #c79a81);
      font-weight: 800;
    }

    h3 {
      margin: 0 0 8px;
      color: #2e382e;
      font-size: 18px;
      line-height: 1.35;
    }

    .service-card p,
    .step-card p,
    .guarantee-card p,
    .faq-answer p {
      margin: 0;
      color: var(--muted);
      font-size: 14.5px;
    }

    .solution-wrap {
      display: grid;
      grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
      gap: 18px;
      align-items: start;
    }

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

    .reason {
      padding: 18px;
      border-radius: 22px;
      background: var(--card);
      border: 1px solid var(--line);
    }

    .reason strong {
      display: block;
      margin-bottom: 6px;
      color: #304032;
      font-size: 16px;
    }

    .reason span {
      color: var(--muted);
      font-size: 14.5px;
    }

    .steps {
      display: grid;
      gap: 12px;
    }

    .step-card {
      display: grid;
      grid-template-columns: 46px minmax(0, 1fr);
      gap: 14px;
      padding: 18px;
      border-radius: 22px;
      background: rgba(255, 253, 247, 0.84);
      border: 1px solid rgba(91, 106, 88, 0.13);
    }

    .step-num {
      width: 46px;
      height: 46px;
      border-radius: 18px;
      display: grid;
      place-items: center;
      color: #2d5a49;
      background: #e7eee4;
      font-weight: 900;
    }

    .photo-strip {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 14px;
      margin-top: 18px;
    }

    .photo-card {
      overflow: hidden;
      border-radius: 24px;
      border: 1px solid rgba(92, 106, 89, 0.12);
      background: var(--card-solid);
      box-shadow: 0 12px 30px rgba(70, 84, 65, 0.08);
    }

    .photo-card img {
      width: 100%;
      aspect-ratio: 4 / 3;
      object-fit: cover;
    }

    .photo-card figcaption {
      padding: 12px 14px;
      color: #536052;
      font-size: 14px;
    }

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

    .guarantee-card {
      padding: 20px;
      border-radius: 24px;
      background: rgba(255, 253, 247, 0.78);
      border: 1px solid rgba(92, 106, 89, 0.13);
    }

    .policy-list {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 12px;
      margin-top: 18px;
    }

    .policy-item {
      padding: 15px 16px;
      border-radius: 18px;
      background: rgba(241, 234, 223, 0.62);
      color: #4a5549;
      font-size: 14px;
      border: 1px solid rgba(92, 106, 89, 0.1);
    }

    .policy-item strong {
      color: #2e382e;
    }

    .contact-grid {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 300px;
      gap: 18px;
      align-items: stretch;
    }

    .contact-card {
      padding: clamp(22px, 4vw, 34px);
      border-radius: var(--radius-xl);
      background: linear-gradient(135deg, rgba(255, 253, 247, 0.9), rgba(241, 232, 220, 0.76));
      border: 1px solid rgba(92, 106, 89, 0.14);
      box-shadow: var(--shadow);
    }

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

    .info-list li {
      display: grid;
      grid-template-columns: 86px minmax(0, 1fr);
      gap: 12px;
      padding: 13px 0;
      border-bottom: 1px solid rgba(92, 106, 89, 0.12);
      color: #465146;
    }

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

    .info-list span {
      color: var(--muted);
      font-weight: 700;
    }

    .map-link {
      display: inline-flex;
      margin-top: 20px;
      color: #2f6b58;
      font-weight: 800;
      border-bottom: 1px solid rgba(47, 107, 88, 0.4);
    }

    .qr-card {
      padding: 18px;
      border-radius: var(--radius-xl);
      background: rgba(255, 253, 247, 0.78);
      border: 1px solid rgba(92, 106, 89, 0.13);
      text-align: center;
    }

    .qr-card img {
      width: 210px;
      max-width: 100%;
      margin: 10px auto 14px;
      border-radius: 18px;
      border: 1px solid rgba(92, 106, 89, 0.16);
      background: #ffffff;
    }

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

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

    .faq-item {
      border-radius: 22px;
      background: rgba(255, 253, 247, 0.78);
      border: 1px solid rgba(92, 106, 89, 0.13);
      overflow: hidden;
    }

    .faq-question {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      padding: 18px 20px;
      border: 0;
      background: transparent;
      color: #2e382e;
      font: inherit;
      font-weight: 800;
      text-align: left;
      cursor: pointer;
    }

    .faq-question::after {
      content: "+";
      width: 30px;
      height: 30px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      background: rgba(111, 143, 122, 0.13);
      color: var(--brand-deep);
      flex: 0 0 auto;
      font-size: 20px;
      line-height: 1;
    }

    .faq-item.active .faq-question::after {
      content: "−";
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.28s ease;
    }

    .faq-answer p {
      padding: 0 20px 18px;
    }

    .related {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
    }

    .related a {
      padding: 14px 16px;
      border-radius: 18px;
      background: rgba(255, 253, 247, 0.72);
      border: 1px solid rgba(92, 106, 89, 0.12);
      color: #405040;
      font-size: 14px;
      transition: transform 0.2s ease, background 0.2s ease;
    }

    .related a:hover {
      transform: translateY(-2px);
      background: rgba(231, 238, 228, 0.82);
    }

    .site-footer {
      margin-top: 20px;
      background: #f1eadf;
      color: #303a30;
      border-top: 1px solid rgba(92, 106, 89, 0.14);
    }

    .footer-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding: 24px 0;
    }

    .footer-inner p {
      margin: 0;
      color: #566156;
      font-size: 14px;
    }

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

    .footer-links a {
      color: #304f42;
      font-size: 14px;
      font-weight: 700;
    }

    .reveal {
      opacity: 0;
      transform: translateY(18px);
      transition: opacity 0.6s ease, transform 0.6s ease;
    }

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

    @keyframes wave {
      0%, 100% {
        transform: scaleY(0.7);
        opacity: 0.75;
      }
      50% {
        transform: scaleY(1.15);
        opacity: 1;
      }
    }

    @keyframes floatIn {
      from {
        opacity: 0;
        transform: translateY(18px) scale(0.98);
      }
      to {
        opacity: 1;
        transform: translateY(0) scale(1);
      }
    }

    @media (max-width: 980px) {
      .nav-links,
      .nav-cta {
        display: none;
      }

      .menu-toggle {
        display: inline-flex;
      }

      .mobile-panel {
        position: fixed;
        left: var(--pad);
        right: var(--pad);
        top: 84px;
        z-index: 60;
        display: none;
        padding: 14px;
        border-radius: 24px;
        background: rgba(255, 253, 247, 0.96);
        border: 1px solid rgba(92, 106, 89, 0.16);
        box-shadow: 0 24px 50px rgba(57, 70, 54, 0.16);
      }

      .mobile-panel.open {
        display: grid;
        gap: 8px;
      }

      .mobile-panel a {
        padding: 13px 14px;
        border-radius: 16px;
        color: #344034;
        font-weight: 750;
        background: rgba(241, 234, 223, 0.55);
      }

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

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

      .policy-list,
      .related {
        grid-template-columns: 1fr;
      }

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

      .section-desc {
        max-width: none;
      }
    }

    @media (max-width: 640px) {
      :root {
        --pad: 16px;
      }

      .nav {
        min-height: 68px;
      }

      .brand-sub {
        display: none;
      }

      .hero {
        padding-top: 34px;
      }

      .hero-notes,
      .service-grid,
      .guarantee-grid,
      .photo-strip {
        grid-template-columns: 1fr;
      }

      .device-screen {
        min-height: 240px;
      }

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

      .step-card {
        grid-template-columns: 40px minmax(0, 1fr);
        padding: 16px;
      }

      .step-num {
        width: 40px;
        height: 40px;
        border-radius: 15px;
      }

      .info-list li {
        grid-template-columns: 1fr;
        gap: 4px;
      }

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

      .footer-links {
        justify-content: flex-start;
      }
    }