:root {
      --brick: #9f3728;
      --brick-dark: #6f241b;
      --brick-soft: #c96d52;
      --ink: #2b2421;
      --muted: #6e625d;
      --paper: #fff8ef;
      --paper-deep: #f3e4d3;
      --card: #fffdf8;
      --line: #e5c8b2;
      --gold: #b78343;
      --green: #4f6f55;
      --shadow: 0 18px 45px rgba(111, 36, 27, 0.13);
      --radius: 22px;
      --container: 1120px;
    }

    * {
      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 8% 0%, rgba(201, 109, 82, 0.18), transparent 34%),
        radial-gradient(circle at 100% 24%, rgba(183, 131, 67, 0.16), transparent 30%),
        linear-gradient(180deg, #fff7ec 0%, #f7eadc 42%, #fffaf3 100%);
      line-height: 1.72;
      overflow-x: hidden;
    }

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

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

    .container {
      width: min(var(--container), calc(100% - 40px));
      margin: 0 auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(255, 248, 239, 0.92);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(159, 55, 40, 0.14);
    }

    .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;
    }

    .brand-mark {
      width: 44px;
      height: 44px;
      border-radius: 14px;
      display: grid;
      place-items: center;
      color: #fff8ef;
      font-weight: 900;
      font-size: 24px;
      background: linear-gradient(135deg, var(--brick-dark), var(--brick));
      box-shadow: 0 10px 24px rgba(111, 36, 27, 0.24);
    }

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

    .brand-text strong {
      font-size: 17px;
      letter-spacing: 0.04em;
      color: var(--brick-dark);
    }

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

    .nav-links {
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 6px;
      flex-wrap: wrap;
    }

    .nav-links a {
      padding: 9px 12px;
      border-radius: 999px;
      color: #473834;
      font-size: 14px;
      transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
    }

    .nav-links a:hover {
      background: rgba(159, 55, 40, 0.1);
      color: var(--brick-dark);
      transform: translateY(-1px);
    }

    .nav-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border: 1px solid rgba(159, 55, 40, 0.18);
      background: var(--brick);
      color: #fff8ef;
      padding: 10px 16px;
      border-radius: 999px;
      font-weight: 700;
      box-shadow: 0 10px 22px rgba(159, 55, 40, 0.22);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .nav-cta:hover {
      transform: translateY(-2px);
      box-shadow: 0 14px 28px rgba(159, 55, 40, 0.28);
    }

    .menu-btn {
      display: none;
      width: 42px;
      height: 42px;
      border: 1px solid rgba(159, 55, 40, 0.2);
      background: #fff7ec;
      color: var(--brick-dark);
      border-radius: 12px;
      font-size: 22px;
      cursor: pointer;
    }

    main {
      position: relative;
    }

    section {
      padding: 56px 0;
    }

    .hero {
      padding: 62px 0 46px;
    }

    .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: 9px;
      width: fit-content;
      border: 1px solid rgba(159, 55, 40, 0.22);
      color: var(--brick-dark);
      background: rgba(255, 253, 248, 0.74);
      padding: 7px 12px;
      border-radius: 999px;
      font-size: 13px;
      font-weight: 700;
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--gold);
      box-shadow: 0 0 0 5px rgba(183, 131, 67, 0.16);
    }

    h1 {
      margin: 18px 0 16px;
      font-size: clamp(34px, 6vw, 58px);
      line-height: 1.08;
      letter-spacing: -0.04em;
      color: #241a17;
    }

    .lead {
      max-width: 680px;
      margin: 0 0 24px;
      color: #5e514c;
      font-size: 17px;
    }

    .hero-actions {
      display: flex;
      align-items: center;
      gap: 14px;
      flex-wrap: wrap;
      margin-top: 26px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 46px;
      padding: 12px 20px;
      border-radius: 14px;
      font-weight: 800;
      cursor: pointer;
      border: 1px solid transparent;
      transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--brick-dark), var(--brick));
      color: #fff8ef;
      box-shadow: 0 16px 32px rgba(111, 36, 27, 0.22);
    }

    .btn-secondary {
      background: rgba(255, 253, 248, 0.78);
      color: var(--brick-dark);
      border-color: rgba(159, 55, 40, 0.22);
    }

    .btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 16px 30px rgba(111, 36, 27, 0.16);
    }

    .hero-note {
      margin-top: 18px;
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
      color: var(--muted);
      font-size: 14px;
    }

    .hero-note span {
      padding: 6px 10px;
      border-radius: 999px;
      background: rgba(255, 253, 248, 0.7);
      border: 1px solid rgba(229, 200, 178, 0.78);
    }

    .hero-panel {
      position: relative;
      padding: 18px;
      border-radius: 28px;
      background:
        linear-gradient(135deg, rgba(255, 253, 248, 0.95), rgba(244, 225, 207, 0.86)),
        repeating-linear-gradient(45deg, rgba(159, 55, 40, 0.04) 0, rgba(159, 55, 40, 0.04) 8px, transparent 8px, transparent 18px);
      border: 1px solid rgba(159, 55, 40, 0.16);
      box-shadow: var(--shadow);
      overflow: hidden;
      animation: floatPanel 5.8s ease-in-out infinite;
    }

    .hero-panel::after {
      content: "";
      position: absolute;
      right: -40px;
      bottom: -46px;
      width: 170px;
      height: 170px;
      border-radius: 50%;
      background: rgba(159, 55, 40, 0.1);
    }

    .inspection-card {
      position: relative;
      z-index: 1;
      background: var(--card);
      border: 1px solid rgba(159, 55, 40, 0.16);
      border-radius: 22px;
      padding: 22px;
    }

    .inspection-card h2 {
      margin: 0 0 12px;
      font-size: 23px;
      color: var(--brick-dark);
    }

    .check-list {
      list-style: none;
      margin: 16px 0 0;
      padding: 0;
      display: grid;
      gap: 12px;
    }

    .check-list li {
      display: grid;
      grid-template-columns: 26px 1fr;
      gap: 10px;
      align-items: start;
      color: #4b3f3a;
    }

    .check-list li::before {
      content: "✓";
      display: grid;
      place-items: center;
      width: 24px;
      height: 24px;
      border-radius: 50%;
      background: rgba(79, 111, 85, 0.12);
      color: var(--green);
      font-weight: 900;
      line-height: 1;
    }

    .mini-board {
      margin-top: 18px;
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
    }

    .mini-item {
      padding: 14px;
      border-radius: 16px;
      background: #fff8ef;
      border: 1px solid rgba(229, 200, 178, 0.82);
    }

    .mini-item b {
      display: block;
      color: var(--brick-dark);
      font-size: 18px;
    }

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

    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 28px;
      margin-bottom: 24px;
    }

    .section-head h2 {
      margin: 0;
      font-size: clamp(26px, 4vw, 38px);
      line-height: 1.2;
      color: #2b1d19;
    }

    .section-head p {
      max-width: 560px;
      margin: 0;
      color: var(--muted);
    }

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

    .service-tile {
      position: relative;
      min-height: 176px;
      padding: 22px;
      border-radius: var(--radius);
      border: 1px solid rgba(159, 55, 40, 0.14);
      background: rgba(255, 253, 248, 0.82);
      box-shadow: 0 14px 34px rgba(111, 36, 27, 0.08);
      overflow: hidden;
      transition: transform 0.22s ease, border-color 0.22s ease;
    }

    .service-tile::before {
      content: "";
      position: absolute;
      inset: 0 auto 0 0;
      width: 6px;
      background: linear-gradient(180deg, var(--brick), var(--gold));
      opacity: 0.9;
    }

    .service-tile:hover {
      transform: translateY(-5px);
      border-color: rgba(159, 55, 40, 0.32);
    }

    .service-tile h3 {
      margin: 0 0 10px;
      font-size: 19px;
      color: var(--brick-dark);
    }

    .service-tile p {
      margin: 0;
      color: #655752;
      font-size: 14px;
    }

    .solution-wrap {
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 26px;
      align-items: stretch;
    }

    .story-card {
      padding: 28px;
      border-radius: 28px;
      background: linear-gradient(145deg, #7f2b21, #b24634);
      color: #fff8ef;
      box-shadow: var(--shadow);
    }

    .story-card h2 {
      margin: 0 0 14px;
      font-size: clamp(25px, 4vw, 35px);
      line-height: 1.2;
      color: #fff8ef;
    }

    .story-card p {
      margin: 0 0 18px;
      color: rgba(255, 248, 239, 0.9);
    }

    .story-card ul {
      margin: 0;
      padding-left: 20px;
      display: grid;
      gap: 9px;
      color: rgba(255, 248, 239, 0.95);
    }

    .steps {
      display: grid;
      gap: 14px;
    }

    .step {
      display: grid;
      grid-template-columns: 52px 1fr;
      gap: 15px;
      align-items: start;
      padding: 18px;
      border-radius: 20px;
      background: rgba(255, 253, 248, 0.86);
      border: 1px solid rgba(159, 55, 40, 0.14);
    }

    .step-num {
      width: 52px;
      height: 52px;
      border-radius: 16px;
      display: grid;
      place-items: center;
      color: #fff8ef;
      background: var(--brick);
      font-weight: 900;
      box-shadow: inset 0 -8px 18px rgba(111, 36, 27, 0.24);
    }

    .step h3 {
      margin: 0 0 4px;
      color: #342621;
      font-size: 18px;
    }

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

    .assurance {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 18px;
    }

    .assurance-card {
      padding: 24px;
      border-radius: 24px;
      background: #fffdf8;
      border: 1px solid rgba(159, 55, 40, 0.15);
      box-shadow: 0 12px 30px rgba(111, 36, 27, 0.08);
    }

    .assurance-card .icon {
      width: 42px;
      height: 42px;
      border-radius: 14px;
      display: grid;
      place-items: center;
      margin-bottom: 14px;
      background: rgba(159, 55, 40, 0.1);
      color: var(--brick-dark);
      font-weight: 900;
      font-size: 20px;
    }

    .assurance-card h3 {
      margin: 0 0 8px;
      color: var(--brick-dark);
    }

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

    .gallery {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 18px;
      align-items: stretch;
    }

    .photo-card {
      border-radius: 26px;
      overflow: hidden;
      border: 1px solid rgba(159, 55, 40, 0.16);
      background: #fffdf8;
      box-shadow: var(--shadow);
    }

    .photo-frame {
      aspect-ratio: 16 / 10;
      background: #f0ddcc;
      display: grid;
      place-items: center;
      overflow: hidden;
    }

    .photo-frame img {
      width: 100%;
      height: 100%;
      object-fit: contain;
      background: #f7eadc;
    }

    .photo-caption {
      padding: 16px 18px;
      color: var(--muted);
      font-size: 14px;
    }

    .contact-card {
      padding: 26px;
      border-radius: 26px;
      background:
        linear-gradient(180deg, rgba(255, 253, 248, 0.92), rgba(246, 232, 217, 0.94));
      border: 1px solid rgba(159, 55, 40, 0.16);
      box-shadow: 0 12px 30px rgba(111, 36, 27, 0.08);
    }

    .contact-card h2 {
      margin: 0 0 12px;
      color: var(--brick-dark);
      font-size: 28px;
    }

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

    .contact-info li {
      padding: 13px 14px;
      border-radius: 16px;
      background: #fffdf8;
      border: 1px solid rgba(229, 200, 178, 0.82);
      color: #4d403b;
    }

    .contact-info b {
      color: var(--brick-dark);
      margin-right: 6px;
    }

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

    .faq-item {
      border-radius: 20px;
      border: 1px solid rgba(159, 55, 40, 0.16);
      background: rgba(255, 253, 248, 0.88);
      overflow: hidden;
    }

    .faq-question {
      width: 100%;
      border: 0;
      background: transparent;
      color: #31241f;
      text-align: left;
      padding: 18px 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
      cursor: pointer;
      font-size: 16px;
      font-weight: 800;
      font-family: inherit;
    }

    .faq-question span {
      width: 28px;
      height: 28px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      flex: 0 0 auto;
      background: rgba(159, 55, 40, 0.1);
      color: var(--brick-dark);
      transition: transform 0.2s 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);
    }

    .faq-item.active .faq-answer {
      max-height: 220px;
    }

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

    .links-panel {
      padding: 24px;
      border-radius: 26px;
      background: rgba(255, 253, 248, 0.86);
      border: 1px solid rgba(159, 55, 40, 0.14);
    }

    .links-panel h2 {
      margin: 0 0 14px;
      font-size: 26px;
      color: var(--brick-dark);
    }

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

    .link-grid a {
      padding: 12px 14px;
      border-radius: 14px;
      background: #fff8ef;
      border: 1px solid rgba(229, 200, 178, 0.9);
      color: #4a3a35;
      font-size: 14px;
      transition: color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
    }

    .link-grid a:hover {
      color: var(--brick-dark);
      border-color: rgba(159, 55, 40, 0.34);
      transform: translateY(-2px);
    }

    .site-footer {
      background: #5f2119;
      color: #fff7ec;
      padding: 34px 0 24px;
      margin-top: 8px;
    }

    .footer-inner {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 24px;
      align-items: center;
    }

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

    .footer-mark {
      width: 38px;
      height: 38px;
      border-radius: 12px;
      background: #fff7ec;
      color: #5f2119;
      display: grid;
      place-items: center;
      font-weight: 900;
      font-size: 22px;
    }

    .footer-inner p {
      margin: 6px 0 0;
      color: rgba(255, 247, 236, 0.78);
      font-size: 13px;
    }

    .footer-links {
      display: flex;
      gap: 14px;
      flex-wrap: wrap;
      justify-content: flex-end;
    }

    .footer-links a {
      color: #fff7ec;
      font-size: 14px;
      opacity: 0.9;
    }

    .footer-links a:hover {
      opacity: 1;
      text-decoration: underline;
    }

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

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

    @keyframes floatPanel {
      0%, 100% {
        transform: translateY(0);
      }
      50% {
        transform: translateY(-8px);
      }
    }

    @media (max-width: 920px) {
      .menu-btn {
        display: grid;
        place-items: center;
      }

      .nav {
        position: relative;
      }

      .nav-links {
        position: absolute;
        top: calc(100% + 1px);
        left: 0;
        right: 0;
        display: none;
        padding: 14px;
        background: rgba(255, 248, 239, 0.98);
        border: 1px solid rgba(159, 55, 40, 0.14);
        border-radius: 0 0 20px 20px;
        box-shadow: 0 18px 34px rgba(111, 36, 27, 0.12);
        justify-content: flex-start;
      }

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

      .nav-cta {
        display: none;
      }

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

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

      .section-head {
        align-items: flex-start;
        flex-direction: column;
        gap: 10px;
      }
    }

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

      section {
        padding: 40px 0;
      }

      .hero {
        padding-top: 42px;
      }

      .brand-text span {
        display: none;
      }

      .service-strip,
      .assurance,
      .link-grid,
      .mini-board {
        grid-template-columns: 1fr;
      }

      .step {
        grid-template-columns: 44px 1fr;
      }

      .step-num {
        width: 44px;
        height: 44px;
        border-radius: 14px;
      }

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

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