:root {
      --bg: #f7efe6;
      --bg-soft: #fbf7f1;
      --clay: #b98262;
      --clay-dark: #7b4d39;
      --sand: #e8d2bf;
      --ink: #2d2723;
      --muted: #6f625b;
      --line: rgba(123, 77, 57, 0.18);
      --card: rgba(255, 252, 247, 0.88);
      --shadow: 0 20px 50px rgba(113, 75, 52, 0.13);
      --radius-lg: 28px;
      --radius-md: 18px;
      --container: 1140px;
    }

    * {
      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 12% 4%, rgba(212, 167, 134, 0.35), transparent 32%),
        radial-gradient(circle at 88% 10%, rgba(185, 130, 98, 0.16), transparent 30%),
        linear-gradient(180deg, #f3e3d5 0%, var(--bg) 36%, #fbf7f1 100%);
      line-height: 1.75;
      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: 50;
      background: rgba(247, 239, 230, 0.9);
      backdrop-filter: blur(14px);
      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: 0 0 auto;
    }

    .logo-mark {
      width: 42px;
      height: 42px;
      border-radius: 15px;
      display: grid;
      place-items: center;
      color: #fffaf4;
      background: linear-gradient(135deg, #8b533d, #c48a68);
      font-size: 24px;
      font-weight: 800;
      box-shadow: 0 10px 24px rgba(123, 77, 57, 0.22);
    }

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

    .brand-text strong {
      font-size: 18px;
      letter-spacing: 0.02em;
      color: var(--ink);
    }

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

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

    .nav-links a {
      padding: 9px 13px;
      border-radius: 999px;
      color: #4a3d36;
      font-size: 14px;
      transition: background 0.2s ease, color 0.2s ease;
      white-space: nowrap;
    }

    .nav-links a:hover {
      background: rgba(185, 130, 98, 0.15);
      color: var(--clay-dark);
    }

    .nav-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 16px;
      border-radius: 999px;
      background: #2d2723;
      color: #fffaf4;
      font-weight: 700;
      font-size: 14px;
      box-shadow: 0 12px 24px rgba(45, 39, 35, 0.14);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
      white-space: nowrap;
    }

    .nav-cta:hover {
      transform: translateY(-2px);
      box-shadow: 0 16px 28px rgba(45, 39, 35, 0.18);
    }

    .menu-btn {
      display: none;
      width: 42px;
      height: 42px;
      border: 1px solid var(--line);
      border-radius: 14px;
      background: rgba(255, 252, 247, 0.72);
      color: var(--ink);
      cursor: pointer;
    }

    .menu-btn span {
      display: block;
      width: 18px;
      height: 2px;
      margin: 4px auto;
      background: var(--ink);
      border-radius: 9px;
    }

    main {
      position: relative;
    }

    .hero {
      padding: 56px 0 44px;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.95fr);
      align-items: center;
      gap: 34px;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      border: 1px solid var(--line);
      border-radius: 999px;
      background: rgba(255, 252, 247, 0.58);
      color: var(--clay-dark);
      font-size: 13px;
      font-weight: 700;
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--clay);
      box-shadow: 0 0 0 6px rgba(185, 130, 98, 0.12);
    }

    h1 {
      margin: 18px 0 16px;
      font-size: clamp(34px, 7vw, 58px);
      line-height: 1.08;
      letter-spacing: -0.05em;
      color: #251f1b;
    }

    .lead {
      margin: 0;
      max-width: 650px;
      color: #594b44;
      font-size: 17px;
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border-radius: 999px;
      padding: 13px 18px;
      border: 1px solid transparent;
      font-weight: 800;
      transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
    }

    .btn-primary {
      color: #fffaf4;
      background: linear-gradient(135deg, #7b4d39, #b98262);
      box-shadow: 0 16px 30px rgba(123, 77, 57, 0.22);
    }

    .btn-secondary {
      color: var(--clay-dark);
      background: rgba(255, 252, 247, 0.72);
      border-color: var(--line);
    }

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

    .hero-note {
      margin-top: 22px;
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 10px;
      max-width: 680px;
    }

    .note-item {
      padding: 12px 13px;
      border-radius: 17px;
      background: rgba(255, 252, 247, 0.62);
      border: 1px solid var(--line);
      color: #594b44;
      font-size: 13px;
    }

    .visual-card {
      position: relative;
      padding: 12px;
      border-radius: 34px;
      background: rgba(255, 252, 247, 0.62);
      border: 1px solid rgba(123, 77, 57, 0.16);
      box-shadow: var(--shadow);
      overflow: hidden;
      animation: floatIn 0.8s ease both;
    }

    .visual-card::before {
      content: "";
      position: absolute;
      inset: 18px 18px auto auto;
      width: 86px;
      height: 86px;
      border-radius: 50%;
      background: rgba(185, 130, 98, 0.16);
      filter: blur(2px);
    }

    .hero-image {
      position: relative;
      overflow: hidden;
      border-radius: 26px;
      aspect-ratio: 4 / 3;
      background: #ead8c6;
    }

    .hero-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .inspection-panel {
      margin-top: 12px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }

    .mini-panel {
      padding: 16px;
      border-radius: 22px;
      background: #fffaf4;
      border: 1px solid var(--line);
    }

    .mini-panel strong {
      display: block;
      color: var(--ink);
      font-size: 15px;
      margin-bottom: 5px;
    }

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

    section {
      padding: 42px 0;
    }

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

    .section-head h2 {
      margin: 0;
      font-size: clamp(26px, 4vw, 38px);
      line-height: 1.18;
      letter-spacing: -0.03em;
      color: #2d2723;
    }

    .section-head p {
      margin: 0;
      max-width: 520px;
      color: var(--muted);
      font-size: 15px;
    }

    .toc {
      padding: 18px;
      border-radius: var(--radius-lg);
      background: rgba(255, 252, 247, 0.72);
      border: 1px solid var(--line);
      box-shadow: 0 14px 38px rgba(113, 75, 52, 0.08);
    }

    .toc-list {
      display: grid;
      grid-template-columns: repeat(5, minmax(0, 1fr));
      gap: 10px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .toc-list a {
      display: block;
      padding: 13px 14px;
      border-radius: 18px;
      background: #fbf7f1;
      border: 1px solid rgba(123, 77, 57, 0.12);
      color: #4d4038;
      font-weight: 700;
      font-size: 14px;
      text-align: center;
      transition: background 0.2s ease, transform 0.2s ease;
    }

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

    .about-wrap {
      display: grid;
      grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
      gap: 22px;
      align-items: stretch;
    }

    .about-card {
      padding: 26px;
      border-radius: var(--radius-lg);
      background: var(--card);
      border: 1px solid var(--line);
      box-shadow: var(--shadow);
    }

    .about-card h3,
    .solution-card h3,
    .guarantee-card h3 {
      margin: 0 0 10px;
      color: #302822;
      font-size: 20px;
      line-height: 1.35;
    }

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

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

    .scene-list li {
      display: flex;
      gap: 12px;
      align-items: flex-start;
      padding: 14px;
      border-radius: 18px;
      background: #fbf7f1;
      border: 1px solid rgba(123, 77, 57, 0.12);
      color: #584a42;
    }

    .scene-list b {
      flex: 0 0 auto;
      width: 26px;
      height: 26px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      background: #e5c7b0;
      color: #6b3f2f;
      font-size: 13px;
    }

    .image-pair {
      display: grid;
      grid-template-columns: 1fr 0.82fr;
      gap: 14px;
      align-items: stretch;
    }

    .photo-box {
      overflow: hidden;
      border-radius: 26px;
      border: 1px solid var(--line);
      background: #ead8c6;
      box-shadow: 0 18px 42px rgba(113, 75, 52, 0.12);
    }

    .photo-box img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .photo-tall {
      aspect-ratio: 3 / 4;
    }

    .photo-small {
      aspect-ratio: 1 / 1;
      align-self: end;
    }

    .solution-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 16px;
    }

    .solution-card {
      padding: 23px;
      border-radius: 24px;
      background: rgba(255, 252, 247, 0.82);
      border: 1px solid var(--line);
      box-shadow: 0 16px 36px rgba(113, 75, 52, 0.08);
      transition: transform 0.22s ease, box-shadow 0.22s ease;
    }

    .solution-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 22px 48px rgba(113, 75, 52, 0.13);
    }

    .tag {
      display: inline-flex;
      margin-bottom: 14px;
      padding: 6px 10px;
      border-radius: 999px;
      background: #efddcd;
      color: #744832;
      font-size: 12px;
      font-weight: 800;
    }

    .solution-card p {
      margin: 0;
      color: var(--muted);
      font-size: 15px;
    }

    .steps {
      counter-reset: step;
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 14px;
      margin-top: 18px;
    }

    .step {
      position: relative;
      padding: 22px 18px;
      border-radius: 24px;
      background: linear-gradient(180deg, rgba(255, 252, 247, 0.9), rgba(250, 242, 233, 0.9));
      border: 1px solid var(--line);
    }

    .step::before {
      counter-increment: step;
      content: counter(step);
      width: 32px;
      height: 32px;
      display: grid;
      place-items: center;
      border-radius: 12px;
      margin-bottom: 14px;
      background: #7b4d39;
      color: #fffaf4;
      font-weight: 800;
    }

    .step h3 {
      margin: 0 0 8px;
      font-size: 17px;
      color: #302822;
    }

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

    .guarantee-layout {
      display: grid;
      grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
      gap: 18px;
      align-items: stretch;
    }

    .guarantee-card {
      padding: 24px;
      border-radius: var(--radius-lg);
      background: #fffaf4;
      border: 1px solid var(--line);
      box-shadow: var(--shadow);
    }

    .policy-list {
      margin: 14px 0 0;
      padding: 0;
      list-style: none;
      display: grid;
      gap: 10px;
    }

    .policy-list li {
      padding: 12px 14px;
      border-radius: 16px;
      background: #f6eadf;
      color: #55453d;
      font-size: 14px;
    }

    .store-card {
      padding: 24px;
      border-radius: var(--radius-lg);
      background: linear-gradient(135deg, #8a5a43, #c79370);
      color: #fffaf4;
      box-shadow: 0 22px 52px rgba(123, 77, 57, 0.2);
    }

    .store-card h3 {
      margin: 0 0 12px;
      font-size: 22px;
    }

    .store-info {
      margin: 0;
      padding: 0;
      list-style: none;
      display: grid;
      gap: 10px;
    }

    .store-info li {
      padding: 12px 14px;
      border-radius: 16px;
      background: rgba(255, 250, 244, 0.13);
      color: #fffaf4;
    }

    .store-info strong {
      color: #fff3e6;
    }

    .map-link {
      display: inline-flex;
      margin-top: 16px;
      padding: 11px 15px;
      border-radius: 999px;
      background: #fffaf4;
      color: #744832;
      font-weight: 800;
    }

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

    .faq-item {
      border-radius: 22px;
      background: rgba(255, 252, 247, 0.82);
      border: 1px solid var(--line);
      overflow: hidden;
    }

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

    .faq-question span {
      flex: 1;
    }

    .faq-question i {
      width: 28px;
      height: 28px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      background: #efdccd;
      color: #744832;
      font-style: normal;
      transition: transform 0.2s ease;
    }

    .faq-answer {
      display: none;
      padding: 0 20px 18px;
      color: var(--muted);
    }

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

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

    .resource-strip {
      padding: 26px;
      border-radius: var(--radius-lg);
      background: rgba(255, 252, 247, 0.78);
      border: 1px solid var(--line);
      box-shadow: 0 16px 40px rgba(113, 75, 52, 0.08);
    }

    .resource-strip h2 {
      margin: 0 0 14px;
      font-size: 26px;
      color: #2d2723;
    }

    .resource-links {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .resource-links a {
      padding: 9px 12px;
      border-radius: 999px;
      background: #f6eadf;
      border: 1px solid rgba(123, 77, 57, 0.12);
      color: #60483b;
      font-size: 13px;
      font-weight: 700;
      transition: background 0.2s ease, transform 0.2s ease;
    }

    .resource-links a:hover {
      background: #e8d2bf;
      transform: translateY(-2px);
    }

    .summary-box {
      margin-top: 18px;
      padding: 22px;
      border-radius: 24px;
      background: #efe0d2;
      border: 1px solid var(--line);
      color: #4d4038;
    }

    .site-footer {
      margin-top: 18px;
      padding: 26px 0;
      background: #2d2723;
      color: #f8efe6;
    }

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

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

    .footer-brand .logo-mark {
      width: 38px;
      height: 38px;
      border-radius: 13px;
      box-shadow: none;
    }

    .footer-brand strong {
      display: block;
      color: #fffaf4;
    }

    .footer-brand span,
    .copyright {
      color: #d8c8ba;
      font-size: 13px;
    }

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

    .footer-links a {
      color: #f4dfcf;
      font-size: 13px;
    }

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

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

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

    @media (max-width: 920px) {
      .menu-btn {
        display: block;
      }

      .nav-links {
        position: absolute;
        left: 16px;
        right: 16px;
        top: 72px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 12px;
        border-radius: 22px;
        background: #fffaf4;
        border: 1px solid var(--line);
        box-shadow: var(--shadow);
      }

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

      .nav-links a {
        text-align: center;
      }

      .nav-cta {
        display: none;
      }

      .hero-grid,
      .about-wrap,
      .guarantee-layout {
        grid-template-columns: 1fr;
      }

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

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

      .section-head {
        display: block;
      }

      .section-head p {
        margin-top: 10px;
      }
    }

    @media (max-width: 620px) {
      .container {
        width: min(100% - 24px, var(--container));
      }

      .hero {
        padding-top: 34px;
      }

      .hero-note,
      .inspection-panel,
      .solution-grid,
      .steps,
      .toc-list,
      .image-pair {
        grid-template-columns: 1fr;
      }

      .photo-tall,
      .photo-small {
        aspect-ratio: 4 / 3;
      }

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

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

      h1 {
        letter-spacing: -0.035em;
      }
    }