:root {
      --bg: #f8f3ea;
      --bg-soft: #fffaf2;
      --card: #fffdf8;
      --wood: #9b6b43;
      --wood-dark: #5a3a24;
      --linen: #e8dcc9;
      --cotton: #f4eadb;
      --ink: #2f2a24;
      --muted: #6d6258;
      --green: #6f8b74;
      --green-dark: #48624d;
      --line: rgba(111, 93, 70, 0.18);
      --shadow: 0 18px 45px rgba(92, 66, 40, 0.12);
      --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(--ink);
      background:
        radial-gradient(circle at top left, rgba(210, 184, 143, 0.34), transparent 34%),
        linear-gradient(180deg, #fbf6ed 0%, #f8f3ea 45%, #f6efe4 100%);
      line-height: 1.7;
      overflow-x: hidden;
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      opacity: 0.18;
      background-image:
        linear-gradient(90deg, rgba(92, 66, 40, 0.05) 1px, transparent 1px),
        linear-gradient(180deg, rgba(92, 66, 40, 0.04) 1px, transparent 1px);
      background-size: 34px 34px;
      z-index: -1;
    }

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

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

    .container {
      width: min(100% - 36px, var(--container));
      margin-inline: auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 20;
      backdrop-filter: blur(16px);
      background: rgba(248, 243, 234, 0.86);
      border-bottom: 1px solid var(--line);
    }

    .nav {
      min-height: 72px;
      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;
      color: var(--wood-dark);
    }

    .logo-mark {
      width: 42px;
      height: 42px;
      border-radius: 15px;
      display: grid;
      place-items: center;
      color: #fffaf2;
      background:
        linear-gradient(145deg, rgba(139, 94, 54, 0.96), rgba(84, 57, 35, 0.96)),
        var(--wood);
      box-shadow: 0 12px 24px rgba(90, 58, 36, 0.22);
      font-size: 22px;
      line-height: 1;
    }

    .brand-text {
      display: flex;
      flex-direction: column;
      line-height: 1.25;
    }

    .brand-text strong {
      font-size: 17px;
    }

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

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

    .nav-links a {
      padding: 9px 13px;
      border-radius: 999px;
      font-size: 14px;
      color: #4c4035;
      transition: background 0.22s ease, color 0.22s ease, transform 0.22s ease;
    }

    .nav-links a:hover {
      color: var(--wood-dark);
      background: rgba(155, 107, 67, 0.12);
      transform: translateY(-1px);
    }

    .nav-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 16px;
      border-radius: 999px;
      color: #fffaf2;
      background: var(--green-dark);
      font-size: 14px;
      font-weight: 700;
      box-shadow: 0 12px 24px rgba(72, 98, 77, 0.2);
      transition: transform 0.22s ease, box-shadow 0.22s ease;
    }

    .nav-cta:hover {
      transform: translateY(-2px);
      box-shadow: 0 16px 28px rgba(72, 98, 77, 0.28);
    }

    .menu-toggle {
      display: none;
      border: 1px solid var(--line);
      background: var(--card);
      color: var(--wood-dark);
      border-radius: 12px;
      padding: 9px 11px;
      font-weight: 700;
    }

    main {
      padding-top: 26px;
    }

    .hero {
      padding: 34px 0 28px;
    }

    .hero-shell {
      display: grid;
      grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
      gap: 28px;
      align-items: stretch;
    }

    .hero-copy {
      position: relative;
      padding: clamp(28px, 5vw, 54px);
      border-radius: var(--radius-lg);
      background:
        linear-gradient(135deg, rgba(255, 253, 248, 0.92), rgba(244, 234, 219, 0.78)),
        var(--card);
      border: 1px solid rgba(155, 107, 67, 0.16);
      box-shadow: var(--shadow);
      overflow: hidden;
    }

    .hero-copy::after {
      content: "";
      position: absolute;
      right: -60px;
      bottom: -70px;
      width: 210px;
      height: 210px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(111, 139, 116, 0.18), transparent 68%);
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      margin-bottom: 16px;
      padding: 7px 12px;
      border: 1px solid rgba(155, 107, 67, 0.18);
      border-radius: 999px;
      background: rgba(255, 250, 242, 0.76);
      color: var(--wood-dark);
      font-size: 13px;
      font-weight: 700;
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--green);
      box-shadow: 0 0 0 5px rgba(111, 139, 116, 0.14);
    }

    h1 {
      margin: 0;
      max-width: 560px;
      color: #28231e;
      font-size: clamp(34px, 6vw, 58px);
      line-height: 1.08;
      letter-spacing: -0.05em;
    }

    .hero-lead {
      margin: 20px 0 0;
      max-width: 620px;
      color: var(--muted);
      font-size: 17px;
    }

    .hero-actions {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-wrap: wrap;
      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: 800;
      transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
    }

    .btn-primary {
      color: #fffaf2;
      background: linear-gradient(135deg, var(--wood), var(--wood-dark));
      box-shadow: 0 14px 28px rgba(90, 58, 36, 0.24);
    }

    .btn-secondary {
      color: var(--wood-dark);
      background: rgba(255, 253, 248, 0.86);
      border: 1px solid rgba(155, 107, 67, 0.22);
    }

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

    .hero-note {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 10px;
      margin-top: 28px;
      max-width: 620px;
    }

    .note-item {
      padding: 14px;
      border-radius: 16px;
      background: rgba(255, 250, 242, 0.72);
      border: 1px solid rgba(155, 107, 67, 0.14);
    }

    .note-item strong {
      display: block;
      color: var(--wood-dark);
      font-size: 15px;
    }

    .note-item span {
      display: block;
      margin-top: 3px;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.45;
    }

    .hero-media {
      display: grid;
      gap: 16px;
      align-content: stretch;
    }

    .image-card {
      position: relative;
      min-height: 320px;
      border-radius: var(--radius-lg);
      overflow: hidden;
      background: var(--cotton);
      border: 1px solid rgba(155, 107, 67, 0.15);
      box-shadow: var(--shadow);
    }

    .image-card img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      min-height: 320px;
    }

    .media-caption {
      position: absolute;
      left: 18px;
      right: 18px;
      bottom: 18px;
      padding: 14px 16px;
      border-radius: 18px;
      background: rgba(255, 253, 248, 0.9);
      color: var(--ink);
      border: 1px solid rgba(255, 255, 255, 0.62);
      box-shadow: 0 14px 30px rgba(70, 50, 32, 0.12);
    }

    .media-caption strong {
      display: block;
      color: var(--wood-dark);
      font-size: 16px;
    }

    .media-caption span {
      display: block;
      margin-top: 2px;
      color: var(--muted);
      font-size: 13px;
    }

    .quick-card {
      display: grid;
      grid-template-columns: auto 1fr;
      gap: 14px;
      align-items: start;
      padding: 18px;
      border-radius: 24px;
      background: rgba(255, 253, 248, 0.84);
      border: 1px solid rgba(155, 107, 67, 0.15);
      box-shadow: 0 12px 30px rgba(92, 66, 40, 0.08);
    }

    .quick-icon {
      width: 44px;
      height: 44px;
      border-radius: 16px;
      display: grid;
      place-items: center;
      background: rgba(111, 139, 116, 0.15);
      color: var(--green-dark);
      font-weight: 900;
    }

    .quick-card h2 {
      margin: 0 0 3px;
      color: var(--wood-dark);
      font-size: 18px;
    }

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

    .section {
      padding: 34px 0;
    }

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

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

    h2 {
      margin: 0;
      color: #302820;
      font-size: clamp(25px, 4vw, 38px);
      line-height: 1.18;
      letter-spacing: -0.035em;
    }

    .section-desc {
      margin: 0;
      max-width: 420px;
      color: var(--muted);
      font-size: 15px;
    }

    .toc {
      padding: 18px;
      border-radius: 24px;
      background: rgba(255, 253, 248, 0.78);
      border: 1px solid rgba(155, 107, 67, 0.15);
      box-shadow: 0 10px 26px rgba(92, 66, 40, 0.07);
    }

    .toc h2 {
      font-size: 20px;
      margin-bottom: 12px;
    }

    .toc-links {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 10px;
    }

    .toc-links a {
      padding: 12px 13px;
      border-radius: 16px;
      background: #fffaf2;
      border: 1px solid rgba(155, 107, 67, 0.12);
      color: var(--wood-dark);
      font-size: 14px;
      font-weight: 700;
      text-align: center;
      transition: transform 0.2s ease, background 0.2s ease;
    }

    .toc-links a:hover {
      transform: translateY(-2px);
      background: #f0e3d0;
    }

    .about-grid {
      display: grid;
      grid-template-columns: 0.95fr 1.05fr;
      gap: 22px;
      align-items: start;
    }

    .about-panel {
      padding: 26px;
      border-radius: var(--radius-lg);
      background: rgba(255, 253, 248, 0.82);
      border: 1px solid rgba(155, 107, 67, 0.15);
      box-shadow: 0 14px 32px rgba(92, 66, 40, 0.08);
    }

    .about-panel p {
      margin: 0;
      color: var(--muted);
    }

    .shop-info {
      display: grid;
      gap: 12px;
      margin-top: 18px;
    }

    .info-row {
      display: grid;
      grid-template-columns: 86px 1fr;
      gap: 10px;
      padding: 12px 0;
      border-top: 1px dashed rgba(155, 107, 67, 0.2);
      color: var(--muted);
      font-size: 15px;
    }

    .info-row strong {
      color: var(--wood-dark);
    }

    .map-link {
      color: #2f6d54;
      font-weight: 800;
      text-decoration: underline;
      text-underline-offset: 4px;
    }

    .photo-pair {
      display: grid;
      grid-template-columns: 1fr 0.72fr;
      gap: 14px;
      align-items: stretch;
    }

    .photo-pair figure {
      margin: 0;
      overflow: hidden;
      border-radius: 24px;
      background: var(--linen);
      border: 1px solid rgba(155, 107, 67, 0.14);
      box-shadow: 0 14px 30px rgba(92, 66, 40, 0.09);
    }

    .photo-pair img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      min-height: 260px;
      transition: transform 0.5s ease;
    }

    .photo-pair figure:hover img {
      transform: scale(1.035);
    }

    .solution-layout {
      display: grid;
      grid-template-columns: 0.85fr 1.15fr;
      gap: 22px;
      align-items: start;
    }

    .diagnose-box {
      padding: 25px;
      border-radius: var(--radius-lg);
      background: linear-gradient(150deg, rgba(111, 139, 116, 0.18), rgba(255, 253, 248, 0.88));
      border: 1px solid rgba(111, 139, 116, 0.18);
      box-shadow: var(--shadow);
    }

    .diagnose-box h3 {
      margin: 0 0 12px;
      color: var(--green-dark);
      font-size: 22px;
    }

    .diagnose-box ul {
      margin: 0;
      padding-left: 20px;
      color: var(--muted);
    }

    .diagnose-box li + li {
      margin-top: 10px;
    }

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

    .service-card {
      padding: 20px;
      border-radius: 22px;
      background: rgba(255, 253, 248, 0.84);
      border: 1px solid rgba(155, 107, 67, 0.15);
      box-shadow: 0 10px 24px rgba(92, 66, 40, 0.07);
      transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
    }

    .service-card:hover {
      transform: translateY(-4px);
      border-color: rgba(155, 107, 67, 0.32);
      box-shadow: 0 18px 34px rgba(92, 66, 40, 0.12);
    }

    .service-card h3 {
      margin: 0 0 8px;
      color: var(--wood-dark);
      font-size: 18px;
    }

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

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

    .step {
      position: relative;
      padding: 22px 18px;
      border-radius: 22px;
      background: rgba(255, 253, 248, 0.82);
      border: 1px solid rgba(155, 107, 67, 0.14);
      overflow: hidden;
    }

    .step::before {
      content: attr(data-step);
      position: absolute;
      right: 16px;
      top: 10px;
      color: rgba(155, 107, 67, 0.13);
      font-size: 48px;
      font-weight: 900;
      line-height: 1;
    }

    .step h3 {
      position: relative;
      margin: 0 0 8px;
      color: var(--wood-dark);
      font-size: 17px;
    }

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

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

    .warranty-card {
      padding: 21px;
      border-radius: 22px;
      background: rgba(255, 253, 248, 0.82);
      border: 1px solid rgba(155, 107, 67, 0.15);
      box-shadow: 0 10px 26px rgba(92, 66, 40, 0.07);
    }

    .warranty-card h3 {
      margin: 0 0 9px;
      color: var(--green-dark);
      font-size: 18px;
    }

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

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

    .faq-item {
      border-radius: 20px;
      background: rgba(255, 253, 248, 0.86);
      border: 1px solid rgba(155, 107, 67, 0.14);
      overflow: hidden;
    }

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

    .faq-question span:last-child {
      flex: 0 0 auto;
      width: 28px;
      height: 28px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      background: rgba(155, 107, 67, 0.12);
      color: var(--wood-dark);
      transition: transform 0.22s ease;
    }

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

    .faq-answer p {
      margin: 0;
      padding: 0 20px 18px;
      color: var(--muted);
      font-size: 15px;
    }

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

    .summary-box {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 22px;
      align-items: center;
      padding: clamp(24px, 4vw, 38px);
      border-radius: var(--radius-lg);
      background:
        linear-gradient(135deg, rgba(255, 253, 248, 0.92), rgba(232, 220, 201, 0.78)),
        var(--card);
      border: 1px solid rgba(155, 107, 67, 0.16);
      box-shadow: var(--shadow);
    }

    .summary-box h2 {
      margin-bottom: 12px;
    }

    .summary-box p {
      margin: 0;
      color: var(--muted);
    }

    .inner-links {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 18px;
    }

    .inner-links a {
      padding: 9px 12px;
      border-radius: 999px;
      color: var(--green-dark);
      background: rgba(111, 139, 116, 0.13);
      border: 1px solid rgba(111, 139, 116, 0.16);
      font-size: 14px;
      font-weight: 800;
    }

    .summary-side {
      padding: 22px;
      border-radius: 24px;
      background: rgba(255, 250, 242, 0.82);
      border: 1px solid rgba(155, 107, 67, 0.14);
    }

    .summary-side strong {
      display: block;
      color: var(--wood-dark);
      font-size: 18px;
      margin-bottom: 8px;
    }

    .summary-side p {
      font-size: 14px;
    }

    .site-footer {
      margin-top: 16px;
      padding: 26px 0;
      background: #efe4d3;
      border-top: 1px solid rgba(155, 107, 67, 0.18);
      color: #3d3329;
    }

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

    .footer-brand {
      display: flex;
      align-items: center;
      gap: 12px;
      color: var(--wood-dark);
      font-weight: 900;
    }

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

    .footer-links a {
      color: #4d4136;
      font-size: 14px;
      font-weight: 700;
    }

    .copyright {
      width: 100%;
      margin: 0;
      color: #685c50;
      font-size: 13px;
    }

    .reveal {
      opacity: 0;
      transform: translateY(18px);
      transition: opacity 0.55s ease, transform 0.55s ease;
    }

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

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

      *,
      *::before,
      *::after {
        animation: none !important;
        transition: none !important;
      }

      .reveal {
        opacity: 1;
        transform: none;
      }
    }

    @media (max-width: 920px) {
      .menu-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
      }

      .nav {
        min-height: 66px;
      }

      .nav-links {
        position: absolute;
        left: 18px;
        right: 18px;
        top: 72px;
        display: none;
        padding: 14px;
        border-radius: 22px;
        background: rgba(255, 253, 248, 0.96);
        border: 1px solid rgba(155, 107, 67, 0.16);
        box-shadow: var(--shadow);
        justify-content: flex-start;
      }

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

      .nav-cta {
        display: none;
      }

      .hero-shell,
      .about-grid,
      .solution-layout,
      .summary-box {
        grid-template-columns: 1fr;
      }

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

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

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

    @media (max-width: 640px) {
      .container {
        width: min(100% - 28px, var(--container));
      }

      main {
        padding-top: 16px;
      }

      .hero {
        padding-top: 20px;
      }

      .brand-text span {
        display: none;
      }

      .hero-copy {
        padding: 24px;
      }

      .hero-note,
      .cards-grid,
      .warranty-wrap,
      .steps,
      .photo-pair,
      .toc-links {
        grid-template-columns: 1fr;
      }

      .image-card,
      .image-card img {
        min-height: 250px;
      }

      .info-row {
        grid-template-columns: 1fr;
        gap: 2px;
      }

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