:root {
      --bg: #f6efe3;
      --bg-deep: #eadbc3;
      --paper: #fffaf1;
      --paper-2: #fbf1df;
      --ink: #2a2118;
      --muted: #6d5c49;
      --brass: #b7792a;
      --brass-dark: #81501c;
      --copper: #a4552f;
      --steel: #59636b;
      --line: rgba(84, 61, 38, 0.18);
      --shadow: 0 22px 55px rgba(70, 43, 18, 0.14);
      --radius-lg: 28px;
      --radius-md: 18px;
      --radius-sm: 12px;
      --container: 1180px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
      color: var(--ink);
      background:
        radial-gradient(circle at 12% 10%, rgba(183, 121, 42, 0.16), transparent 32%),
        radial-gradient(circle at 88% 12%, rgba(164, 85, 47, 0.14), transparent 34%),
        linear-gradient(135deg, #fbf5ea 0%, #f2e4cf 48%, #f7efe4 100%);
      line-height: 1.7;
      overflow-x: hidden;
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      opacity: 0.35;
      background-image:
        linear-gradient(rgba(93, 67, 39, 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(93, 67, 39, 0.06) 1px, transparent 1px);
      background-size: 34px 34px;
      z-index: -2;
    }

    body::after {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      background:
        repeating-linear-gradient(90deg, rgba(255,255,255,0.18) 0, rgba(255,255,255,0.18) 1px, transparent 1px, transparent 8px);
      opacity: 0.18;
      z-index: -1;
    }

    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: 20;
      backdrop-filter: blur(14px);
      background: rgba(251, 244, 232, 0.84);
      border-bottom: 1px solid var(--line);
    }

    .nav {
      min-height: 74px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 800;
      letter-spacing: 0.06em;
      color: var(--ink);
      white-space: nowrap;
    }

    .logo-mark {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      color: #fff8e8;
      background:
        radial-gradient(circle at 35% 30%, #dfad65, #a55f24 58%, #5f3618 100%);
      box-shadow: inset 0 0 0 3px rgba(255, 238, 190, 0.45), 0 10px 22px rgba(112, 63, 24, 0.22);
      position: relative;
    }

    .logo-mark::after {
      content: "";
      position: absolute;
      inset: -5px;
      border-radius: 50%;
      border: 1px dashed rgba(129, 80, 28, 0.55);
      animation: rotateGear 14s linear infinite;
    }

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

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

    .brand-text span {
      font-size: 12px;
      color: var(--muted);
      letter-spacing: 0.02em;
    }

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

    .nav-links a {
      padding: 9px 12px;
      border-radius: 999px;
      color: #3b2d20;
      font-size: 14px;
      transition: background 0.2s ease, transform 0.2s ease;
    }

    .nav-links a:hover {
      background: rgba(183, 121, 42, 0.12);
      transform: translateY(-1px);
    }

    .nav-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 40px;
      padding: 9px 15px;
      border-radius: 999px;
      color: #fff8e8;
      background: linear-gradient(135deg, var(--copper), var(--brass-dark));
      box-shadow: 0 12px 24px rgba(129, 80, 28, 0.22);
      font-weight: 700;
    }

    .menu-btn {
      display: none;
      border: 1px solid var(--line);
      background: rgba(255, 250, 241, 0.8);
      color: var(--ink);
      width: 42px;
      height: 42px;
      border-radius: 12px;
      cursor: pointer;
      font-size: 20px;
    }

    main {
      position: relative;
    }

    .hero {
      padding: 56px 0 38px;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.08fr) minmax(310px, 0.92fr);
      gap: 34px;
      align-items: center;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 7px 12px;
      border: 1px solid rgba(183, 121, 42, 0.34);
      border-radius: 999px;
      background: rgba(255, 250, 241, 0.74);
      color: var(--brass-dark);
      font-size: 13px;
      font-weight: 700;
      box-shadow: 0 8px 24px rgba(112, 63, 24, 0.08);
    }

    .eyebrow::before {
      content: "";
      width: 9px;
      height: 9px;
      border-radius: 50%;
      background: var(--brass);
      box-shadow: 0 0 0 6px rgba(183, 121, 42, 0.15);
    }

    h1 {
      margin: 18px 0 16px;
      font-size: clamp(32px, 6vw, 58px);
      line-height: 1.12;
      letter-spacing: -0.04em;
      color: #24190f;
    }

    .hero-lead {
      margin: 0;
      max-width: 680px;
      font-size: 17px;
      color: #4f3d2b;
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 46px;
      padding: 12px 18px;
      border-radius: 14px;
      border: 1px solid transparent;
      font-weight: 800;
      transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
      cursor: pointer;
    }

    .btn-primary {
      color: #fff8e8;
      background: linear-gradient(135deg, #b76e28, #743f1c);
      box-shadow: 0 16px 32px rgba(129, 80, 28, 0.24);
    }

    .btn-secondary {
      color: #3a2919;
      background: rgba(255, 250, 241, 0.86);
      border-color: rgba(129, 80, 28, 0.22);
    }

    .btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 18px 34px rgba(95, 54, 24, 0.18);
    }

    .hero-notes {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 24px;
    }

    .hero-notes span {
      padding: 8px 11px;
      border-radius: 999px;
      background: rgba(255, 250, 241, 0.68);
      border: 1px solid rgba(129, 80, 28, 0.14);
      color: #5d4732;
      font-size: 13px;
    }

    .phone-stage {
      position: relative;
      border-radius: var(--radius-lg);
      padding: 18px;
      background:
        linear-gradient(145deg, rgba(255, 250, 241, 0.92), rgba(235, 214, 184, 0.78));
      border: 1px solid rgba(129, 80, 28, 0.18);
      box-shadow: var(--shadow);
      overflow: hidden;
    }

    .phone-stage::before {
      content: "";
      position: absolute;
      width: 190px;
      height: 190px;
      right: -64px;
      top: -64px;
      border-radius: 50%;
      border: 20px solid rgba(183, 121, 42, 0.13);
      box-shadow: inset 0 0 0 1px rgba(129, 80, 28, 0.12);
      animation: floatSoft 5s ease-in-out infinite;
    }

    .phone-stage::after {
      content: "";
      position: absolute;
      left: 20px;
      right: 20px;
      bottom: 18px;
      height: 10px;
      border-radius: 999px;
      background: repeating-linear-gradient(90deg, rgba(129, 80, 28, 0.22), rgba(129, 80, 28, 0.22) 12px, transparent 12px, transparent 22px);
    }

    .phone-frame {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: 0.95fr 1.05fr;
      gap: 12px;
      align-items: stretch;
    }

    .phone-img-wrap {
      border-radius: 22px;
      overflow: hidden;
      background: #ead8bd;
      border: 1px solid rgba(93, 67, 39, 0.18);
      min-height: 330px;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .phone-img-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .diagnosis-panel {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      gap: 14px;
      padding: 18px;
      border-radius: 22px;
      background: rgba(255, 250, 241, 0.82);
      border: 1px solid rgba(129, 80, 28, 0.16);
    }

    .dial {
      width: 82px;
      height: 82px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      color: #fff7e6;
      font-weight: 900;
      background: conic-gradient(from 30deg, #5b3a22, #b7792a, #ead2a6, #8d4b25, #5b3a22);
      box-shadow: inset 0 0 0 9px rgba(255, 249, 233, 0.45);
    }

    .diagnosis-panel h2 {
      margin: 0;
      font-size: 24px;
      line-height: 1.25;
    }

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

    .mini-list {
      margin: 0;
      padding: 0;
      list-style: none;
      display: grid;
      gap: 8px;
    }

    .mini-list li {
      display: flex;
      gap: 8px;
      align-items: flex-start;
      color: #4d3a28;
      font-size: 14px;
    }

    .mini-list li::before {
      content: "";
      width: 8px;
      height: 8px;
      flex: 0 0 auto;
      margin-top: 9px;
      border-radius: 50%;
      background: var(--brass);
    }

    .section {
      padding: 38px 0;
    }

    .section-head {
      display: grid;
      grid-template-columns: minmax(0, 0.82fr) minmax(240px, 0.38fr);
      gap: 24px;
      align-items: end;
      margin-bottom: 22px;
    }

    .section-kicker {
      margin: 0 0 8px;
      color: var(--brass-dark);
      font-weight: 900;
      font-size: 13px;
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }

    h2 {
      margin: 0;
      font-size: clamp(25px, 4vw, 38px);
      line-height: 1.24;
      letter-spacing: -0.03em;
      color: #24190f;
    }

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

    .anchor-board {
      padding: 16px;
      border-radius: 22px;
      background: rgba(255, 250, 241, 0.75);
      border: 1px solid rgba(129, 80, 28, 0.16);
      box-shadow: 0 12px 26px rgba(70, 43, 18, 0.08);
    }

    .anchor-board nav {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .anchor-board a {
      padding: 9px 12px;
      border-radius: 12px;
      background: rgba(235, 214, 184, 0.65);
      color: #3b2d20;
      font-size: 14px;
      border: 1px solid rgba(129, 80, 28, 0.12);
      transition: transform 0.2s ease, background 0.2s ease;
    }

    .anchor-board a:hover {
      transform: translateY(-2px);
      background: rgba(222, 187, 136, 0.72);
    }

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

    .service-card {
      position: relative;
      min-height: 186px;
      padding: 20px;
      border-radius: 22px;
      background: linear-gradient(160deg, rgba(255, 250, 241, 0.9), rgba(242, 225, 199, 0.86));
      border: 1px solid rgba(129, 80, 28, 0.16);
      box-shadow: 0 14px 32px rgba(70, 43, 18, 0.09);
      overflow: hidden;
      transition: transform 0.22s ease, box-shadow 0.22s ease;
    }

    .service-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 22px 42px rgba(70, 43, 18, 0.14);
    }

    .service-card::after {
      content: "";
      position: absolute;
      right: -28px;
      bottom: -28px;
      width: 88px;
      height: 88px;
      border: 13px solid rgba(183, 121, 42, 0.12);
      border-radius: 50%;
    }

    .service-icon {
      width: 42px;
      height: 42px;
      display: grid;
      place-items: center;
      margin-bottom: 14px;
      border-radius: 14px;
      color: #fff8e8;
      background: linear-gradient(135deg, var(--brass), var(--copper));
      font-weight: 900;
      box-shadow: inset 0 0 0 2px rgba(255,255,255,0.18);
    }

    .service-card h3 {
      margin: 0 0 8px;
      font-size: 18px;
      line-height: 1.35;
    }

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

    .solution-wrap {
      display: grid;
      grid-template-columns: minmax(0, 0.88fr) minmax(280px, 0.52fr);
      gap: 18px;
      align-items: start;
    }

    .steps {
      display: grid;
      gap: 12px;
    }

    .step {
      display: grid;
      grid-template-columns: 58px minmax(0, 1fr);
      gap: 14px;
      padding: 18px;
      border-radius: 22px;
      background: rgba(255, 250, 241, 0.78);
      border: 1px solid rgba(129, 80, 28, 0.15);
      box-shadow: 0 12px 28px rgba(70, 43, 18, 0.08);
    }

    .step-num {
      height: 58px;
      border-radius: 18px;
      display: grid;
      place-items: center;
      color: #fff8e8;
      font-weight: 900;
      background:
        linear-gradient(135deg, #6b4b32, #b7792a);
      box-shadow: inset 0 0 0 2px rgba(255, 239, 204, 0.22);
    }

    .step h3 {
      margin: 0 0 6px;
      font-size: 18px;
    }

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

    .notice-card {
      position: sticky;
      top: 94px;
      padding: 22px;
      border-radius: 26px;
      background:
        linear-gradient(145deg, rgba(62, 43, 29, 0.96), rgba(111, 65, 30, 0.96));
      color: #fff3dc;
      box-shadow: var(--shadow);
      overflow: hidden;
    }

    .notice-card::before {
      content: "";
      position: absolute;
      width: 180px;
      height: 180px;
      right: -72px;
      top: -58px;
      border-radius: 50%;
      border: 18px solid rgba(255, 215, 150, 0.13);
    }

    .notice-card h3 {
      position: relative;
      margin: 0 0 10px;
      font-size: 22px;
    }

    .notice-card p {
      position: relative;
      margin: 0 0 16px;
      color: #f5dfbd;
      font-size: 14px;
    }

    .notice-card ul {
      position: relative;
      margin: 0;
      padding-left: 18px;
      color: #fff3dc;
      font-size: 14px;
    }

    .notice-card li + li {
      margin-top: 8px;
    }

    .assurance-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 16px;
    }

    .policy-card {
      padding: 20px;
      border-radius: 22px;
      background: rgba(255, 250, 241, 0.78);
      border: 1px solid rgba(129, 80, 28, 0.15);
      display: grid;
      gap: 9px;
      box-shadow: 0 12px 28px rgba(70, 43, 18, 0.08);
    }

    .policy-card h3 {
      margin: 0;
      font-size: 18px;
    }

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

    .contact-panel {
      display: grid;
      grid-template-columns: minmax(0, 0.95fr) minmax(300px, 0.62fr);
      gap: 18px;
      align-items: stretch;
    }

    .contact-main,
    .qr-card {
      padding: 24px;
      border-radius: 26px;
      background: rgba(255, 250, 241, 0.82);
      border: 1px solid rgba(129, 80, 28, 0.16);
      box-shadow: 0 16px 34px rgba(70, 43, 18, 0.09);
    }

    .contact-list {
      display: grid;
      gap: 12px;
      margin-top: 18px;
    }

    .contact-item {
      display: grid;
      grid-template-columns: 94px minmax(0, 1fr);
      gap: 12px;
      padding: 13px 0;
      border-bottom: 1px dashed rgba(129, 80, 28, 0.22);
    }

    .contact-item:last-child {
      border-bottom: 0;
    }

    .contact-item strong {
      color: #322315;
    }

    .contact-item span,
    .contact-item a {
      color: #5e4934;
    }

    .map-link {
      color: #0066cc;
      text-decoration: none;
      font-weight: 800;
    }

    .qr-card {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      gap: 16px;
    }

    .qr-img {
      overflow: hidden;
      border-radius: 22px;
      border: 1px solid rgba(129, 80, 28, 0.16);
      background: #fff;
      padding: 12px;
    }

    .qr-card h3 {
      margin: 0 0 8px;
      font-size: 22px;
    }

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

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

    .faq-item {
      border-radius: 18px;
      overflow: hidden;
      background: rgba(255, 250, 241, 0.8);
      border: 1px solid rgba(129, 80, 28, 0.15);
      box-shadow: 0 10px 24px rgba(70, 43, 18, 0.07);
    }

    .faq-question {
      width: 100%;
      border: 0;
      background: transparent;
      color: var(--ink);
      text-align: left;
      padding: 18px 20px;
      font-size: 16px;
      font-weight: 900;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      cursor: pointer;
    }

    .faq-question span {
      flex: 1;
    }

    .faq-question::after {
      content: "+";
      width: 30px;
      height: 30px;
      flex: 0 0 auto;
      border-radius: 50%;
      display: grid;
      place-items: center;
      background: rgba(183, 121, 42, 0.15);
      color: var(--brass-dark);
      transition: transform 0.2s ease;
    }

    .faq-item.active .faq-question::after {
      content: "−";
      transform: rotate(180deg);
    }

    .faq-answer {
      display: none;
      padding: 0 20px 18px;
      color: var(--muted);
      font-size: 14px;
    }

    .faq-item.active .faq-answer {
      display: block;
      animation: fadeIn 0.2s ease;
    }

    .summary-box {
      padding: 24px;
      border-radius: 26px;
      background:
        linear-gradient(135deg, rgba(255, 250, 241, 0.86), rgba(236, 214, 181, 0.72));
      border: 1px solid rgba(129, 80, 28, 0.16);
      box-shadow: var(--shadow);
      display: grid;
      gap: 16px;
    }

    .summary-box p {
      margin: 0;
      color: #4f3d2b;
    }

    .links-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 10px;
      margin-top: 16px;
    }

    .links-grid a {
      padding: 12px 14px;
      border-radius: 14px;
      background: rgba(255, 250, 241, 0.72);
      border: 1px solid rgba(129, 80, 28, 0.13);
      color: #4d3926;
      font-size: 14px;
      transition: transform 0.2s ease, background 0.2s ease;
    }

    .links-grid a:hover {
      transform: translateY(-2px);
      background: rgba(235, 214, 184, 0.74);
    }

    .site-footer {
      margin-top: 28px;
      padding: 28px 0;
      background: #2d2117;
      color: #fff1d8;
      border-top: 1px solid rgba(255, 229, 185, 0.16);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: minmax(0, 0.9fr) minmax(260px, 0.5fr);
      gap: 18px;
      align-items: center;
    }

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

    .footer-brand .logo-mark {
      width: 38px;
      height: 38px;
      box-shadow: inset 0 0 0 3px rgba(255, 238, 190, 0.35);
    }

    .footer-brand strong {
      display: block;
      color: #fff4df;
    }

    .footer-brand span,
    .footer-info {
      color: #d8c3a5;
      font-size: 13px;
    }

    .footer-links {
      display: flex;
      flex-wrap: wrap;
      justify-content: flex-end;
      gap: 10px;
    }

    .footer-links a {
      color: #ffe0aa;
      font-size: 13px;
    }

    .reveal {
      opacity: 0;
      transform: translateY(18px);
      transition: opacity 0.5s ease, transform 0.5s ease;
    }

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

    @keyframes rotateGear {
      to {
        transform: rotate(360deg);
      }
    }

    @keyframes floatSoft {
      0%, 100% {
        transform: translateY(0);
      }
      50% {
        transform: translateY(10px);
      }
    }

    @keyframes fadeIn {
      from {
        opacity: 0;
        transform: translateY(-4px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    @media (max-width: 980px) {
      .nav-links {
        position: absolute;
        left: 16px;
        right: 16px;
        top: 74px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 14px;
        border-radius: 18px;
        background: rgba(255, 250, 241, 0.96);
        border: 1px solid rgba(129, 80, 28, 0.16);
        box-shadow: var(--shadow);
      }

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

      .nav-links a,
      .nav-cta {
        width: 100%;
        justify-content: center;
        text-align: center;
      }

      .menu-btn {
        display: block;
      }

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

      .section-head {
        grid-template-columns: 1fr;
        gap: 10px;
      }

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

      .notice-card {
        position: relative;
        top: auto;
      }

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

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

      .hero {
        padding-top: 34px;
      }

      .phone-frame,
      .assurance-grid,
      .links-grid,
      .service-grid {
        grid-template-columns: 1fr;
      }

      .phone-img-wrap {
        min-height: 240px;
      }

      .contact-item {
        grid-template-columns: 1fr;
        gap: 4px;
      }

      .step {
        grid-template-columns: 48px minmax(0, 1fr);
        padding: 16px;
      }

      .step-num {
        height: 48px;
        border-radius: 15px;
      }

      .brand-text span {
        display: none;
      }
    }