:root {
      --bg: #fbf8f4;
      --bg-soft: #fffdf9;
      --card: #ffffff;
      --text: #22242a;
      --muted: #686f7a;
      --line: #eadfd4;
      --primary: #b88466;
      --primary-dark: #7d513d;
      --primary-soft: #f5e7dc;
      --green: #8ab7a4;
      --shadow: 0 18px 42px rgba(125, 81, 61, 0.12);
      --radius-lg: 28px;
      --radius-md: 20px;
      --radius-sm: 14px;
      --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(--text);
      background:
        radial-gradient(circle at 8% 6%, rgba(245, 231, 220, 0.95), transparent 34%),
        radial-gradient(circle at 92% 18%, rgba(224, 240, 233, 0.86), transparent 32%),
        linear-gradient(180deg, #fffaf5 0%, var(--bg) 46%, #f8f3ed 100%);
      line-height: 1.7;
      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: 30;
      background: rgba(255, 250, 245, 0.88);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(234, 223, 212, 0.78);
    }

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

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      font-weight: 800;
      color: var(--primary-dark);
      white-space: nowrap;
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: 15px;
      display: grid;
      place-items: center;
      color: #ffffff;
      background: linear-gradient(135deg, #c99a7e, #8a5d47);
      box-shadow: 0 12px 24px rgba(125, 81, 61, 0.2);
      font-size: 22px;
    }

    .brand-text {
      display: flex;
      flex-direction: column;
      line-height: 1.2;
      font-size: 15px;
    }

    .brand-text small {
      font-weight: 500;
      color: var(--muted);
      margin-top: 3px;
    }

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

    .nav-links a {
      padding: 10px 12px;
      border-radius: 999px;
      font-size: 14px;
      color: #3c3f45;
      transition: background 0.2s ease, color 0.2s ease;
    }

    .nav-links a:hover {
      background: var(--primary-soft);
      color: var(--primary-dark);
    }

    .nav-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 42px;
      padding: 0 16px;
      border-radius: 999px;
      background: #2f2f34;
      color: #ffffff;
      font-size: 14px;
      font-weight: 700;
      box-shadow: 0 14px 28px rgba(47, 47, 52, 0.16);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .nav-cta:hover {
      transform: translateY(-2px);
      box-shadow: 0 18px 34px rgba(47, 47, 52, 0.2);
    }

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

    .menu-toggle span,
    .menu-toggle span::before,
    .menu-toggle span::after {
      content: "";
      width: 18px;
      height: 2px;
      background: #3c3f45;
      display: block;
      border-radius: 2px;
      position: relative;
      transition: transform 0.2s ease;
    }

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

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

    main {
      padding-bottom: 0;
    }

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

    .hero {
      padding: 56px 0 34px;
    }

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

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      border: 1px solid rgba(184, 132, 102, 0.26);
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.66);
      color: var(--primary-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(138, 183, 164, 0.16);
    }

    h1 {
      margin: 18px 0 16px;
      font-size: clamp(34px, 6vw, 58px);
      line-height: 1.08;
      letter-spacing: -1.2px;
      color: #202126;
    }

    .hero-lead {
      max-width: 620px;
      margin: 0;
      color: #555b64;
      font-size: clamp(16px, 2.6vw, 18px);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 48px;
      padding: 0 20px;
      border-radius: 999px;
      font-weight: 800;
      font-size: 15px;
      border: 1px solid transparent;
      cursor: pointer;
      transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
    }

    .btn-primary {
      background: linear-gradient(135deg, #b88466, #7d513d);
      color: #ffffff;
      box-shadow: 0 16px 32px rgba(125, 81, 61, 0.2);
    }

    .btn-secondary {
      background: rgba(255, 255, 255, 0.76);
      color: var(--primary-dark);
      border-color: rgba(184, 132, 102, 0.26);
    }

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

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

    .hero-panel {
      position: relative;
      padding: 18px;
      border-radius: 34px;
      background: rgba(255, 255, 255, 0.7);
      border: 1px solid rgba(234, 223, 212, 0.9);
      box-shadow: var(--shadow);
      overflow: hidden;
      animation: floatIn 0.8s ease both;
    }

    .hero-panel::before {
      content: "";
      position: absolute;
      inset: 18px 18px auto auto;
      width: 88px;
      height: 88px;
      border-radius: 50%;
      background: rgba(138, 183, 164, 0.22);
      filter: blur(2px);
    }

    .phone-gallery {
      position: relative;
      display: grid;
      grid-template-columns: 1fr 0.86fr;
      gap: 14px;
      align-items: stretch;
    }

    .phone-shot {
      overflow: hidden;
      border-radius: 24px;
      background: #f1e8df;
      border: 1px solid rgba(255, 255, 255, 0.7);
    }

    .phone-shot img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      aspect-ratio: 4 / 5;
      transition: transform 0.45s ease;
    }

    .phone-shot:hover img {
      transform: scale(1.035);
    }

    .phone-stack {
      display: grid;
      gap: 14px;
    }

    .phone-stack .phone-shot img {
      aspect-ratio: 4 / 3;
    }

    .status-card {
      margin-top: 14px;
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 10px;
    }

    .status-card div {
      padding: 12px;
      border-radius: 18px;
      background: #fffaf5;
      border: 1px solid var(--line);
    }

    .status-card strong {
      display: block;
      color: var(--primary-dark);
      font-size: 15px;
      margin-bottom: 2px;
    }

    .status-card span {
      display: block;
      color: var(--muted);
      font-size: 12px;
      line-height: 1.5;
    }

    .section {
      padding: 44px 0;
    }

    .section-head {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 24px;
      margin-bottom: 22px;
    }

    .section-kicker {
      color: var(--primary-dark);
      font-weight: 800;
      font-size: 13px;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      margin-bottom: 7px;
    }

    h2 {
      margin: 0;
      font-size: clamp(24px, 4vw, 36px);
      line-height: 1.22;
      letter-spacing: -0.5px;
      color: #23252b;
    }

    .section-desc {
      max-width: 460px;
      margin: 0;
      color: var(--muted);
      font-size: 15px;
    }

    .service-band {
      padding: 24px;
      border-radius: var(--radius-lg);
      background: rgba(255, 255, 255, 0.72);
      border: 1px solid rgba(234, 223, 212, 0.88);
      box-shadow: 0 14px 32px rgba(125, 81, 61, 0.08);
    }

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

    .service-item {
      padding: 18px;
      min-height: 150px;
      border-radius: 22px;
      background: linear-gradient(180deg, #ffffff, #fff9f3);
      border: 1px solid rgba(234, 223, 212, 0.92);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .service-item:hover {
      transform: translateY(-4px);
      box-shadow: 0 16px 28px rgba(125, 81, 61, 0.12);
    }

    .service-icon {
      width: 38px;
      height: 38px;
      border-radius: 14px;
      display: grid;
      place-items: center;
      background: var(--primary-soft);
      color: var(--primary-dark);
      font-weight: 900;
      margin-bottom: 12px;
    }

    h3 {
      margin: 0 0 8px;
      font-size: 18px;
      line-height: 1.35;
      color: #292b30;
    }

    .service-item p,
    .solution-card p,
    .warranty-card p,
    .faq-answer,
    .contact-card p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
    }

    .solution-wrap {
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 18px;
      align-items: start;
    }

    .soft-panel {
      border-radius: var(--radius-lg);
      padding: 24px;
      background: linear-gradient(135deg, #fffdf9, #f5e7dc);
      border: 1px solid rgba(234, 223, 212, 0.9);
      box-shadow: var(--shadow);
    }

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

    .check-list li {
      display: flex;
      gap: 10px;
      align-items: flex-start;
      color: #4c515a;
      font-size: 15px;
    }

    .check-list li::before {
      content: "✓";
      flex: 0 0 24px;
      width: 24px;
      height: 24px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      background: #ffffff;
      color: var(--primary-dark);
      font-weight: 900;
      line-height: 1;
      box-shadow: 0 6px 14px rgba(125, 81, 61, 0.1);
    }

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

    .solution-card {
      padding: 20px;
      border-radius: 22px;
      background: rgba(255, 255, 255, 0.78);
      border: 1px solid rgba(234, 223, 212, 0.88);
    }

    .solution-card strong {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-width: 34px;
      height: 34px;
      padding: 0 10px;
      border-radius: 999px;
      background: #e8f2ec;
      color: #4d8068;
      margin-bottom: 12px;
    }

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

    .warranty-card {
      padding: 20px;
      border-radius: 22px;
      background: #ffffff;
      border: 1px solid var(--line);
      box-shadow: 0 10px 26px rgba(125, 81, 61, 0.07);
    }

    .warranty-card .tag {
      display: inline-block;
      padding: 5px 10px;
      border-radius: 999px;
      background: var(--primary-soft);
      color: var(--primary-dark);
      font-size: 12px;
      font-weight: 800;
      margin-bottom: 10px;
    }

    .contact-layout {
      display: grid;
      grid-template-columns: 1.08fr 0.92fr;
      gap: 18px;
      align-items: stretch;
    }

    .contact-card {
      padding: 24px;
      border-radius: var(--radius-lg);
      background: rgba(255, 255, 255, 0.78);
      border: 1px solid rgba(234, 223, 212, 0.9);
      box-shadow: 0 12px 30px rgba(125, 81, 61, 0.08);
    }

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

    .info-list li {
      display: grid;
      grid-template-columns: 92px 1fr;
      gap: 12px;
      padding: 12px 0;
      border-bottom: 1px solid rgba(234, 223, 212, 0.75);
      color: #3d4148;
      font-size: 15px;
    }

    .info-list li:last-child {
      border-bottom: none;
    }

    .info-list b {
      color: var(--primary-dark);
      font-weight: 800;
    }

    .qr-grid {
      display: grid;
      grid-template-columns: 170px 1fr;
      gap: 18px;
      align-items: center;
      margin-top: 20px;
      padding: 16px;
      border-radius: 22px;
      background: #fffaf5;
      border: 1px solid var(--line);
    }

    .qr-box {
      padding: 10px;
      border-radius: 18px;
      background: #ffffff;
      border: 1px solid var(--line);
    }

    .qr-box img {
      width: 150px;
      aspect-ratio: 1 / 1;
      object-fit: contain;
      border-radius: 12px;
    }

    .map-link {
      display: inline-flex;
      margin-top: 12px;
      color: #0066cc;
      text-decoration: none;
      font-weight: 800;
      word-break: break-word;
    }

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

    .faq-item {
      border: 1px solid rgba(234, 223, 212, 0.9);
      border-radius: 20px;
      background: rgba(255, 255, 255, 0.74);
      overflow: hidden;
    }

    .faq-question {
      width: 100%;
      min-height: 58px;
      padding: 16px 18px;
      border: 0;
      background: transparent;
      color: #262930;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      text-align: left;
      font-size: 16px;
      font-weight: 800;
      cursor: pointer;
    }

    .faq-question::after {
      content: "+";
      flex: 0 0 28px;
      width: 28px;
      height: 28px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      background: var(--primary-soft);
      color: var(--primary-dark);
      font-size: 18px;
      line-height: 1;
      transition: transform 0.2s ease;
    }

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      padding: 0 18px;
      transition: max-height 0.26s ease, padding 0.26s ease;
    }

    .faq-item.active .faq-answer {
      max-height: 220px;
      padding: 0 18px 18px;
    }

    .link-strip {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 10px;
      margin-top: 18px;
    }

    .link-strip a {
      padding: 13px 14px;
      border-radius: 16px;
      background: #fffdf9;
      border: 1px solid var(--line);
      color: #4b4f57;
      font-size: 14px;
      transition: background 0.2s ease, transform 0.2s ease;
    }

    .link-strip a:hover {
      background: var(--primary-soft);
      transform: translateY(-2px);
    }

    .summary {
      padding: 28px;
      border-radius: 30px;
      background: linear-gradient(135deg, #2f2f34, #564136);
      color: #ffffff;
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 20px;
      align-items: center;
      box-shadow: 0 18px 38px rgba(47, 47, 52, 0.18);
    }

    .summary h2 {
      color: #ffffff;
      margin-bottom: 8px;
    }

    .summary p {
      margin: 0;
      color: rgba(255, 255, 255, 0.82);
    }

    .summary .btn {
      background: #ffffff;
      color: #4b3428;
      white-space: nowrap;
    }

    .site-footer {
      margin-top: 44px;
      background: #fffaf5;
      border-top: 1px solid var(--line);
      color: #34373d;
    }

    .footer-inner {
      padding: 26px 0;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
    }

    .footer-links {
      display: flex;
      flex-wrap: wrap;
      gap: 10px 16px;
    }

    .footer-links a {
      color: #5b6068;
      font-size: 14px;
    }

    .copyright {
      color: #6a7078;
      font-size: 14px;
      margin: 0;
    }

    .reveal {
      opacity: 0;
      transform: translateY(18px);
      transition: opacity 0.55s ease, transform 0.55s 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: 980px) {
      .nav-links,
      .nav-cta {
        display: none;
      }

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

      .mobile-menu {
        display: none;
        padding: 0 0 16px;
      }

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

      .mobile-menu a {
        min-height: 44px;
        display: flex;
        align-items: center;
        padding: 10px 12px;
        border-radius: 14px;
        background: rgba(255, 255, 255, 0.72);
        border: 1px solid rgba(234, 223, 212, 0.75);
        color: #383c43;
        font-weight: 700;
      }

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

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

      .summary {
        grid-template-columns: 1fr;
      }
    }

    @media (min-width: 981px) {
      .mobile-menu {
        display: none;
      }
    }

    @media (max-width: 680px) {
      .container {
        width: min(100% - 24px, var(--container));
      }

      .hero {
        padding-top: 34px;
      }

      .section {
        padding: 34px 0;
      }

      .section-head {
        display: block;
      }

      .section-desc {
        margin-top: 10px;
      }

      .phone-gallery,
      .service-grid,
      .solution-cards,
      .warranty-grid,
      .link-strip,
      .status-card {
        grid-template-columns: 1fr;
      }

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

      .service-band,
      .soft-panel,
      .contact-card,
      .summary {
        padding: 20px;
        border-radius: 24px;
      }

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

      .qr-grid {
        grid-template-columns: 1fr;
      }

      .qr-box {
        width: 172px;
      }

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

      .btn {
        width: 100%;
      }

      .hero-actions {
        align-items: stretch;
      }
    }