:root {
      --bg: #f8f4ec;
      --bg-soft: #fffaf1;
      --ink: #2f2a22;
      --muted: #6d6254;
      --line: #eadfcf;
      --brand: #8b5a2b;
      --brand-deep: #5f3c1e;
      --brand-light: #f1dfc2;
      --green: #476a59;
      --white: #ffffff;
      --shadow: 0 18px 45px rgba(95, 60, 30, 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", sans-serif;
      color: var(--ink);
      background:
        radial-gradient(circle at 8% 6%, rgba(241, 223, 194, 0.72), transparent 28%),
        radial-gradient(circle at 92% 20%, rgba(206, 224, 209, 0.62), transparent 30%),
        linear-gradient(180deg, #fbf6ec 0%, #f7f1e8 45%, #fffaf2 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;
    }

    .skip-link {
      position: absolute;
      left: 16px;
      top: -48px;
      background: var(--brand-deep);
      color: #fff;
      padding: 8px 14px;
      border-radius: 999px;
      z-index: 20;
      transition: top .25s ease;
    }

    .skip-link:focus {
      top: 12px;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 10;
      background: rgba(255, 250, 242, 0.86);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(234, 223, 207, 0.8);
    }

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

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-weight: 800;
      letter-spacing: .08em;
      color: var(--brand-deep);
      white-space: nowrap;
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      display: grid;
      place-items: center;
      border-radius: 15px;
      background: linear-gradient(145deg, #8b5a2b, #c78d4c);
      color: #fff;
      box-shadow: 0 10px 25px rgba(139, 90, 43, .24);
      font-size: 23px;
      line-height: 1;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 6px;
      padding: 6px;
      border: 1px solid rgba(234, 223, 207, .86);
      border-radius: 999px;
      background: rgba(255, 255, 255, .56);
    }

    .nav-links a {
      padding: 8px 13px;
      border-radius: 999px;
      color: #4a4034;
      font-size: 14px;
      transition: background .2s ease, color .2s ease;
    }

    .nav-links a:hover {
      background: var(--brand-light);
      color: var(--brand-deep);
    }

    .nav-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 16px;
      border-radius: 999px;
      background: var(--green);
      color: #fff;
      font-weight: 700;
      box-shadow: 0 10px 25px rgba(71, 106, 89, .22);
      transition: transform .2s ease, box-shadow .2s ease;
      white-space: nowrap;
    }

    .nav-cta:hover {
      transform: translateY(-2px);
      box-shadow: 0 14px 28px rgba(71, 106, 89, .28);
    }

    .menu-toggle {
      display: none;
      border: 1px solid var(--line);
      background: #fffaf2;
      color: var(--ink);
      border-radius: 14px;
      padding: 9px 12px;
      font-weight: 700;
    }

    main {
      padding-bottom: 34px;
    }

    .hero {
      padding: 54px 0 34px;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.04fr) minmax(300px, .72fr);
      gap: 30px;
      align-items: center;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      border: 1px solid rgba(139, 90, 43, .18);
      border-radius: 999px;
      background: rgba(255, 255, 255, .68);
      color: var(--brand-deep);
      font-size: 14px;
      font-weight: 700;
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--green);
      box-shadow: 0 0 0 5px rgba(71, 106, 89, .13);
    }

    h1 {
      margin: 18px 0 14px;
      font-size: clamp(32px, 6vw, 58px);
      line-height: 1.08;
      letter-spacing: -.04em;
      color: #2d251c;
    }

    .hero-lead {
      max-width: 680px;
      margin: 0 0 22px;
      color: var(--muted);
      font-size: 17px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      align-items: center;
      margin-top: 22px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border-radius: 999px;
      padding: 12px 18px;
      border: 1px solid transparent;
      font-weight: 800;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--brand), #bd8145);
      color: #fff;
      box-shadow: 0 16px 32px rgba(139, 90, 43, .23);
    }

    .btn-secondary {
      background: rgba(255, 255, 255, .75);
      color: var(--brand-deep);
      border-color: rgba(139, 90, 43, .2);
    }

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

    .hero-note {
      margin-top: 18px;
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 10px;
      max-width: 650px;
    }

    .note-item {
      padding: 11px 12px;
      border-radius: 16px;
      background: rgba(255, 255, 255, .64);
      border: 1px solid rgba(234, 223, 207, .8);
      color: #51463a;
      font-size: 14px;
    }

    .visual-card {
      position: relative;
      padding: 16px;
      border-radius: 34px;
      background: linear-gradient(145deg, rgba(255,255,255,.88), rgba(255,248,235,.68));
      border: 1px solid rgba(234, 223, 207, .88);
      box-shadow: var(--shadow);
      overflow: hidden;
      animation: floatIn .75s ease both;
    }

    .visual-card::before {
      content: "";
      position: absolute;
      inset: auto -60px -70px auto;
      width: 190px;
      height: 190px;
      border-radius: 50%;
      background: rgba(71, 106, 89, .13);
    }

    .phone-frame {
      position: relative;
      overflow: hidden;
      border-radius: 25px;
      background: #efe3d2;
      aspect-ratio: 4 / 3;
      border: 1px solid rgba(139, 90, 43, .14);
    }

    .phone-frame img {
      width: 100%;
      height: 100%;
      object-fit: contain;
      padding: 10px;
    }

    .signal-panel {
      position: relative;
      margin-top: 14px;
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 14px;
      align-items: center;
      padding: 14px;
      border-radius: 20px;
      background: #fff;
      border: 1px solid var(--line);
    }

    .signal-panel strong {
      display: block;
      color: var(--ink);
      line-height: 1.35;
    }

    .signal-panel span {
      display: block;
      margin-top: 3px;
      color: var(--muted);
      font-size: 13px;
    }

    .signal-bars {
      display: inline-flex;
      align-items: end;
      gap: 4px;
      height: 32px;
    }

    .signal-bars i {
      width: 7px;
      border-radius: 8px 8px 3px 3px;
      background: var(--green);
      animation: pulseBar 1.8s ease-in-out infinite;
    }

    .signal-bars i:nth-child(1) { height: 10px; opacity: .45; }
    .signal-bars i:nth-child(2) { height: 16px; opacity: .6; animation-delay: .15s; }
    .signal-bars i:nth-child(3) { height: 23px; opacity: .8; animation-delay: .3s; }
    .signal-bars i:nth-child(4) { height: 30px; animation-delay: .45s; }

    .section {
      padding: 32px 0;
    }

    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 20px;
      margin-bottom: 18px;
    }

    .section-kicker {
      margin: 0 0 4px;
      color: var(--brand);
      font-size: 14px;
      font-weight: 800;
      letter-spacing: .08em;
    }

    h2 {
      margin: 0;
      font-size: clamp(25px, 4vw, 38px);
      line-height: 1.2;
      letter-spacing: -.025em;
      color: #31281e;
    }

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

    .soft-panel {
      border-radius: var(--radius-lg);
      background: rgba(255, 255, 255, .66);
      border: 1px solid rgba(234, 223, 207, .85);
      box-shadow: 0 16px 34px rgba(95, 60, 30, .08);
    }

    .service-strip {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 12px;
      padding: 16px;
    }

    .service-item {
      padding: 18px;
      min-height: 128px;
      border-radius: 22px;
      background: linear-gradient(180deg, #fffdf8, #f8efe2);
      border: 1px solid rgba(234, 223, 207, .9);
      transition: transform .25s ease, box-shadow .25s ease;
    }

    .service-item:hover {
      transform: translateY(-4px);
      box-shadow: 0 14px 28px rgba(95, 60, 30, .12);
    }

    .service-icon {
      width: 38px;
      height: 38px;
      display: grid;
      place-items: center;
      border-radius: 14px;
      background: var(--brand-light);
      color: var(--brand-deep);
      font-weight: 900;
      margin-bottom: 10px;
    }

    .service-item h3,
    .solution-card h3,
    .guarantee-card h3,
    .contact-card h3,
    .faq-item h3 {
      margin: 0 0 7px;
      font-size: 18px;
      line-height: 1.35;
      color: #30271e;
    }

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

    .solution-layout {
      display: grid;
      grid-template-columns: .86fr 1.14fr;
      gap: 18px;
      align-items: stretch;
    }

    .diagnosis-box {
      padding: 24px;
      border-radius: var(--radius-lg);
      background: linear-gradient(160deg, #fff9ed, #eef5ef);
      border: 1px solid rgba(234, 223, 207, .9);
    }

    .diagnosis-box ul {
      list-style: none;
      padding: 0;
      margin: 18px 0 0;
      display: grid;
      gap: 10px;
    }

    .diagnosis-box li {
      display: flex;
      gap: 10px;
      align-items: flex-start;
      color: #51463a;
      padding: 10px 0;
      border-bottom: 1px dashed rgba(139, 90, 43, .22);
    }

    .diagnosis-box li:last-child {
      border-bottom: 0;
    }

    .diagnosis-box li::before {
      content: "✓";
      flex: 0 0 auto;
      width: 24px;
      height: 24px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      background: var(--green);
      color: #fff;
      font-size: 13px;
      margin-top: 1px;
    }

    .solution-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 12px;
    }

    .solution-card {
      padding: 18px;
      border-radius: 22px;
      background: rgba(255, 255, 255, .72);
      border: 1px solid rgba(234, 223, 207, .92);
      transition: transform .22s ease, border-color .22s ease;
    }

    .solution-card:hover {
      transform: translateY(-3px);
      border-color: rgba(139, 90, 43, .34);
    }

    .steps {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 12px;
    }

    .step {
      position: relative;
      padding: 20px;
      border-radius: 24px;
      background: #fffdf8;
      border: 1px solid var(--line);
      overflow: hidden;
    }

    .step span {
      display: inline-flex;
      width: 34px;
      height: 34px;
      align-items: center;
      justify-content: center;
      border-radius: 13px;
      background: var(--brand-deep);
      color: #fff;
      font-weight: 900;
      margin-bottom: 12px;
    }

    .step h3 {
      margin: 0 0 6px;
      font-size: 17px;
    }

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

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

    .guarantee-card {
      padding: 20px;
      border-radius: 24px;
      background: rgba(255, 255, 255, .72);
      border: 1px solid rgba(234, 223, 207, .92);
    }

    .policy-list {
      margin-top: 14px;
      display: grid;
      gap: 9px;
    }

    .policy-row {
      padding: 12px 14px;
      border-radius: 16px;
      background: rgba(255, 250, 241, .9);
      border: 1px solid rgba(234, 223, 207, .88);
      color: #51463a;
      font-size: 14px;
    }

    .contact-layout {
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 18px;
      align-items: stretch;
    }

    .contact-card {
      padding: 24px;
      border-radius: var(--radius-lg);
      background: rgba(255, 255, 255, .72);
      border: 1px solid rgba(234, 223, 207, .92);
    }

    .info-list {
      display: grid;
      gap: 12px;
      margin-top: 16px;
    }

    .info-row {
      display: grid;
      grid-template-columns: 86px 1fr;
      gap: 12px;
      padding: 12px 0;
      border-bottom: 1px solid rgba(234, 223, 207, .86);
    }

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

    .info-row b {
      color: var(--brand-deep);
    }

    .info-row span,
    .info-row a {
      color: #3e352b;
    }

    .map-link {
      color: #0066cc;
      text-decoration: none;
      font-weight: 700;
    }

    .qr-panel {
      display: grid;
      gap: 14px;
    }

    .qr-box {
      padding: 18px;
      border-radius: 24px;
      background: #fffdf8;
      border: 1px solid var(--line);
    }

    .qr-box h3 {
      margin: 0 0 10px;
      font-size: 18px;
      color: #30271e;
    }

    .qr-img {
      width: min(100%, 260px);
      margin: 0 auto;
      border-radius: 18px;
      border: 1px solid rgba(234, 223, 207, .9);
      background: #fff;
      padding: 8px;
    }

    .faq-list {
      display: grid;
      gap: 10px;
    }

    .faq-item {
      border-radius: 20px;
      background: rgba(255, 255, 255, .76);
      border: 1px solid rgba(234, 223, 207, .92);
      overflow: hidden;
    }

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

    .faq-question::after {
      content: "+";
      width: 28px;
      height: 28px;
      display: grid;
      place-items: center;
      flex: 0 0 auto;
      border-radius: 50%;
      background: var(--brand-light);
      color: var(--brand-deep);
      font-weight: 900;
      transition: transform .2s ease;
    }

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

    .faq-answer {
      display: grid;
      grid-template-rows: 0fr;
      transition: grid-template-rows .25s ease;
    }

    .faq-item.active .faq-answer {
      grid-template-rows: 1fr;
    }

    .faq-answer-inner {
      overflow: hidden;
    }

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

    .links-wrap {
      padding: 20px;
      border-radius: var(--radius-lg);
      background: linear-gradient(145deg, rgba(255,255,255,.74), rgba(248,239,226,.72));
      border: 1px solid rgba(234, 223, 207, .9);
    }

    .links-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 10px;
      margin-top: 14px;
    }

    .links-grid a {
      padding: 12px 14px;
      border-radius: 16px;
      background: #fffdf8;
      border: 1px solid var(--line);
      color: #4b4035;
      font-size: 14px;
      transition: transform .2s ease, background .2s ease;
    }

    .links-grid a:hover {
      transform: translateY(-2px);
      background: #f5e7d0;
      color: var(--brand-deep);
    }

    .summary-card {
      display: grid;
      grid-template-columns: 1.2fr auto;
      gap: 18px;
      align-items: center;
      padding: 24px;
      border-radius: 30px;
      background: linear-gradient(135deg, #fff8eb, #edf5ef);
      border: 1px solid rgba(234, 223, 207, .9);
      box-shadow: 0 18px 42px rgba(95, 60, 30, .1);
    }

    .summary-card h2 {
      font-size: clamp(24px, 4vw, 34px);
      margin-bottom: 8px;
    }

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

    .site-footer {
      background: #efe3d2;
      color: #33291f;
      border-top: 1px solid #dfceb7;
      padding: 24px 0;
    }

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

    .footer-inner p {
      margin: 0;
      color: #5d5145;
      font-size: 14px;
    }

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

    .footer-links a {
      color: #4a3b2b;
      font-size: 14px;
      font-weight: 700;
    }

    .reveal {
      opacity: 0;
      transform: translateY(18px);
      transition: opacity .55s ease, transform .55s ease;
    }

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

    @keyframes floatIn {
      from { opacity: 0; transform: translateY(18px) scale(.98); }
      to { opacity: 1; transform: translateY(0) scale(1); }
    }

    @keyframes pulseBar {
      0%, 100% { transform: scaleY(.82); }
      50% { transform: scaleY(1); }
    }

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

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

      .nav.open {
        flex-wrap: wrap;
      }

      .nav.open .nav-links {
        order: 3;
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        width: 100%;
        border-radius: 22px;
        padding: 10px;
      }

      .nav.open .nav-cta {
        display: inline-flex;
        order: 4;
        width: 100%;
      }

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

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

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

    @media (max-width: 640px) {
      .container {
        width: min(100% - 24px, var(--container));
      }

      .hero {
        padding-top: 34px;
      }

      .hero-note,
      .service-strip,
      .solution-grid,
      .steps,
      .guarantee-grid,
      .links-grid {
        grid-template-columns: 1fr;
      }

      .signal-panel,
      .footer-inner {
        grid-template-columns: 1fr;
        flex-direction: column;
        align-items: flex-start;
      }

      .info-row {
        grid-template-columns: 1fr;
        gap: 3px;
      }

      .section {
        padding: 26px 0;
      }

      .summary-card {
        padding: 20px;
      }
    }