:root{
      --ink:#17213f;
      --ink-2:#29345c;
      --indigo:#18275a;
      --indigo-deep:#101a3d;
      --blue:#2f53a3;
      --gold:#b88945;
      --gold-soft:#f2e2c3;
      --paper:#f8f5ee;
      --paper-2:#efe7d8;
      --card:#fffaf1;
      --line:rgba(24,39,90,.16);
      --shadow:0 18px 45px rgba(16,26,61,.14);
      --radius:22px;
      --container:1120px;
    }
    *{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 10% 0%, rgba(184,137,69,.18), transparent 32%),
        radial-gradient(circle at 90% 8%, rgba(47,83,163,.16), transparent 30%),
        linear-gradient(180deg,#fbf7ee 0%,#f3ecdd 48%,#f8f5ee 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(var(--container), calc(100% - 32px));
      margin:0 auto;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:20;
      background:rgba(248,245,238,.92);
      backdrop-filter:blur(14px);
      border-bottom:1px solid rgba(24,39,90,.12);
    }
    .nav{
      min-height:70px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
      font-weight:800;
      color:var(--indigo-deep);
    }
    .logo{
      width:42px;
      height:42px;
      border-radius:14px;
      display:grid;
      place-items:center;
      color:#fff9ed;
      background:linear-gradient(135deg,var(--indigo-deep),var(--blue));
      box-shadow:0 8px 24px rgba(16,26,61,.25), inset 0 0 0 1px rgba(255,255,255,.15);
      font-size:24px;
      letter-spacing:.02em;
    }
    .brand small{
      display:block;
      font-size:12px;
      color:#6a5c45;
      font-weight:600;
      margin-top:-2px;
    }
    .nav-links{
      display:flex;
      align-items:center;
      justify-content:flex-end;
      gap:6px;
    }
    .nav-links a{
      padding:10px 12px;
      border-radius:999px;
      color:var(--ink-2);
      font-size:14px;
      font-weight:700;
      transition:.2s ease;
    }
    .nav-links a:hover{
      color:var(--indigo-deep);
      background:rgba(184,137,69,.13);
    }
    .nav-cta{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:42px;
      padding:0 16px;
      border-radius:999px;
      background:var(--indigo);
      color:#fff8ec;
      font-weight:800;
      box-shadow:0 10px 24px rgba(24,39,90,.24);
    }
    .menu-btn{
      display:none;
      border:1px solid rgba(24,39,90,.18);
      background:#fff7e8;
      color:var(--indigo);
      border-radius:14px;
      min-width:44px;
      min-height:44px;
      font-size:20px;
      cursor:pointer;
    }
    main{position:relative}
    .hero{
      padding:46px 0 30px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1.06fr) minmax(320px,.94fr);
      gap:28px;
      align-items:stretch;
    }
    .hero-copy{
      position:relative;
      padding:36px;
      border-radius:30px;
      background:
        linear-gradient(135deg,rgba(255,250,241,.96),rgba(239,231,216,.82)),
        repeating-linear-gradient(90deg,rgba(24,39,90,.04) 0 1px,transparent 1px 12px);
      border:1px solid rgba(184,137,69,.25);
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .hero-copy:after{
      content:"";
      position:absolute;
      right:-70px;
      bottom:-90px;
      width:230px;
      height:230px;
      border-radius:50%;
      background:radial-gradient(circle,rgba(184,137,69,.22),transparent 68%);
      pointer-events:none;
      animation:floatGlow 7s ease-in-out infinite;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      background:rgba(24,39,90,.08);
      color:var(--indigo);
      font-size:13px;
      font-weight:800;
      margin-bottom:16px;
    }
    .eyebrow:before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--gold);
      box-shadow:0 0 0 5px rgba(184,137,69,.16);
    }
    h1{
      margin:0 0 16px;
      font-size:clamp(34px,5vw,56px);
      line-height:1.08;
      letter-spacing:-.04em;
      color:var(--indigo-deep);
    }
    .lead{
      margin:0 0 22px;
      color:#39415f;
      font-size:17px;
      max-width:720px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin:24px 0 0;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:48px;
      padding:0 20px;
      border-radius:16px;
      border:1px solid transparent;
      font-weight:850;
      cursor:pointer;
      transition:transform .18s ease, box-shadow .18s ease, background .18s ease;
    }
    .btn:hover{transform:translateY(-2px)}
    .btn-primary{
      background:linear-gradient(135deg,var(--indigo),#223d84);
      color:#fff8ec;
      box-shadow:0 14px 30px rgba(24,39,90,.24);
    }
    .btn-secondary{
      background:#fff6e6;
      color:var(--indigo);
      border-color:rgba(184,137,69,.35);
    }
    .price-note{
      margin-top:22px;
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:10px;
    }
    .note{
      padding:12px;
      border-radius:16px;
      background:rgba(255,255,255,.62);
      border:1px solid rgba(24,39,90,.12);
      color:#313b61;
      font-size:13px;
      font-weight:700;
    }
    .hero-panel{
      padding:18px;
      border-radius:30px;
      background:linear-gradient(160deg,var(--indigo-deep),#213a7c 64%,#80613a);
      color:#fff7e8;
      box-shadow:var(--shadow);
      border:1px solid rgba(255,255,255,.14);
      display:flex;
      flex-direction:column;
      gap:16px;
      overflow:hidden;
      position:relative;
    }
    .hero-panel:before{
      content:"";
      position:absolute;
      inset:-1px;
      background:radial-gradient(circle at 80% 6%,rgba(255,227,173,.28),transparent 32%);
      pointer-events:none;
    }
    .phone-strip{
      position:relative;
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:12px;
      z-index:1;
    }
    .phone-shot{
      overflow:hidden;
      border-radius:22px;
      background:#f7efe2;
      aspect-ratio:4/5;
      border:1px solid rgba(255,255,255,.18);
    }
    .phone-shot img{
      width:100%;
      height:100%;
      object-fit:cover;
    }
    .panel-info{
      position:relative;
      z-index:1;
      padding:10px 6px 4px;
    }
    .panel-info h2{
      margin:0 0 8px;
      color:#fff7e8;
      font-size:22px;
    }
    .panel-info p{
      margin:0;
      color:#eadfc8;
      font-size:14px;
    }
    .mini-list{
      position:relative;
      z-index:1;
      display:grid;
      gap:10px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .mini-list li{
      display:flex;
      align-items:flex-start;
      gap:10px;
      padding:12px;
      border-radius:16px;
      background:rgba(255,255,255,.1);
      border:1px solid rgba(255,255,255,.12);
      color:#fff8ec;
      font-size:14px;
    }
    .mini-list li:before{
      content:"";
      flex:0 0 8px;
      width:8px;
      height:8px;
      margin-top:9px;
      border-radius:50%;
      background:#e7bf77;
    }
    section{
      padding:34px 0;
    }
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:20px;
      margin-bottom:18px;
    }
    .section-head h2{
      margin:0;
      color:var(--indigo-deep);
      font-size:clamp(24px,3vw,36px);
      line-height:1.18;
      letter-spacing:-.03em;
    }
    .section-head p{
      margin:0;
      color:#5c6278;
      max-width:560px;
      font-size:15px;
    }
    .toc{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      padding:14px;
      border-radius:22px;
      background:rgba(255,250,241,.72);
      border:1px solid var(--line);
      box-shadow:0 10px 30px rgba(24,39,90,.07);
    }
    .toc a{
      padding:9px 13px;
      border-radius:999px;
      color:var(--indigo);
      background:rgba(24,39,90,.06);
      font-size:14px;
      font-weight:800;
    }
    .content-card{
      background:rgba(255,250,241,.88);
      border:1px solid rgba(24,39,90,.12);
      border-radius:var(--radius);
      box-shadow:0 12px 34px rgba(24,39,90,.08);
    }
    .price-box{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:18px;
      padding:22px;
      align-items:start;
    }
    .stamp{
      border-radius:20px;
      padding:22px;
      background:linear-gradient(145deg,#17275d,#213e85);
      color:#fff8ec;
      min-height:100%;
    }
    .stamp strong{
      display:block;
      font-size:22px;
      line-height:1.3;
      margin-bottom:10px;
    }
    .stamp p{margin:0;color:#ecdfc7}
    .factor-list{
      margin:0;
      padding:0;
      list-style:none;
      display:grid;
      gap:10px;
    }
    .factor-list li{
      padding:14px 14px 14px 42px;
      border-radius:16px;
      background:#fff8eb;
      border:1px solid rgba(184,137,69,.22);
      position:relative;
      color:#34405f;
    }
    .factor-list li:before{
      content:"✓";
      position:absolute;
      left:14px;
      top:14px;
      width:20px;
      height:20px;
      display:grid;
      place-items:center;
      border-radius:50%;
      background:rgba(184,137,69,.18);
      color:#8b642d;
      font-size:13px;
      font-weight:900;
    }
    .service-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:14px;
    }
    .service-card{
      padding:18px;
      border-radius:20px;
      background:linear-gradient(180deg,#fffaf1,#f7eddc);
      border:1px solid rgba(184,137,69,.22);
      min-height:142px;
      transition:transform .2s ease, box-shadow .2s ease;
    }
    .service-card:hover{
      transform:translateY(-4px);
      box-shadow:0 18px 35px rgba(24,39,90,.12);
    }
    .service-card span{
      display:inline-grid;
      place-items:center;
      width:34px;
      height:34px;
      border-radius:12px;
      background:rgba(24,39,90,.09);
      color:var(--indigo);
      font-weight:900;
      margin-bottom:12px;
    }
    .service-card h3{
      margin:0 0 6px;
      font-size:17px;
      color:var(--indigo-deep);
    }
    .service-card p{
      margin:0;
      font-size:14px;
      color:#5a5f72;
    }
    .solution-wrap{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:16px;
    }
    .steps{
      padding:22px;
    }
    .steps ol{
      margin:0;
      padding:0;
      list-style:none;
      counter-reset:item;
      display:grid;
      gap:13px;
    }
    .steps li{
      counter-increment:item;
      display:grid;
      grid-template-columns:42px 1fr;
      gap:12px;
      align-items:start;
    }
    .steps li:before{
      content:counter(item);
      width:42px;
      height:42px;
      border-radius:15px;
      display:grid;
      place-items:center;
      background:var(--indigo);
      color:#fff8ec;
      font-weight:900;
      box-shadow:inset 0 0 0 1px rgba(255,255,255,.14);
    }
    .steps h3{
      margin:0 0 4px;
      font-size:17px;
      color:var(--indigo-deep);
    }
    .steps p{
      margin:0;
      color:#5b6074;
      font-size:14px;
    }
    .notice{
      padding:22px;
      background:
        linear-gradient(135deg,rgba(255,250,241,.93),rgba(242,226,195,.65));
    }
    .notice h3{
      margin:0 0 10px;
      color:var(--indigo-deep);
      font-size:22px;
    }
    .notice p{
      margin:0 0 12px;
      color:#4f5670;
    }
    .tag-row{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
    }
    .tag-row span{
      padding:7px 10px;
      border-radius:999px;
      background:rgba(24,39,90,.08);
      color:var(--indigo);
      font-size:13px;
      font-weight:800;
    }
    .warranty-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:14px;
    }
    .warranty{
      padding:18px;
      border-radius:20px;
      background:#fffaf1;
      border:1px solid rgba(24,39,90,.13);
    }
    .warranty h3{
      margin:0 0 8px;
      color:var(--indigo-deep);
      font-size:17px;
    }
    .warranty p{
      margin:0;
      color:#5b6074;
      font-size:14px;
    }
    .contact-layout{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:16px;
      align-items:start;
    }
    .contact-card{
      padding:24px;
    }
    .contact-list{
      margin:0;
      padding:0;
      list-style:none;
      display:grid;
      gap:12px;
    }
    .contact-list li{
      padding:14px;
      border-radius:16px;
      background:#fff7e8;
      border:1px solid rgba(184,137,69,.2);
    }
    .contact-list strong{
      display:block;
      color:var(--indigo-deep);
      margin-bottom:2px;
    }
    .map-link{
      display:inline-flex;
      align-items:center;
      min-height:42px;
      margin-top:14px;
      padding:0 14px;
      border-radius:14px;
      color:#0f3678;
      background:rgba(47,83,163,.1);
      font-weight:850;
      border:1px solid rgba(47,83,163,.18);
    }
    .qr-card{
      padding:20px;
      text-align:center;
      background:linear-gradient(180deg,#fffaf1,#f1e4cf);
    }
    .qr-box{
      width:min(260px,100%);
      margin:0 auto 12px;
      padding:12px;
      border-radius:24px;
      background:#fff;
      border:1px solid rgba(24,39,90,.12);
      box-shadow:0 14px 30px rgba(24,39,90,.1);
    }
    .qr-card h3{
      margin:0 0 8px;
      color:var(--indigo-deep);
    }
    .qr-card p{
      margin:0;
      color:#5a6074;
      font-size:14px;
    }
    .faq-list{
      display:grid;
      gap:12px;
    }
    .faq-item{
      border-radius:18px;
      background:#fffaf1;
      border:1px solid rgba(24,39,90,.13);
      overflow:hidden;
    }
    .faq-question{
      width:100%;
      border:0;
      background:transparent;
      color:var(--indigo-deep);
      min-height:58px;
      padding:0 18px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      text-align:left;
      font-size:16px;
      font-weight:900;
      cursor:pointer;
    }
    .faq-question span:last-child{
      width:28px;
      height:28px;
      border-radius:50%;
      display:grid;
      place-items:center;
      background:rgba(24,39,90,.08);
      flex:0 0 auto;
      transition:transform .2s ease;
    }
    .faq-answer{
      max-height:0;
      overflow:hidden;
      transition:max-height .25s ease;
    }
    .faq-answer p{
      margin:0;
      padding:0 18px 18px;
      color:#565d73;
      font-size:15px;
    }
    .faq-item.open .faq-answer{max-height:180px}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .related{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
    }
    .related a{
      padding:15px;
      border-radius:16px;
      background:rgba(255,250,241,.86);
      border:1px solid rgba(24,39,90,.12);
      color:var(--indigo);
      font-weight:800;
      font-size:14px;
      transition:.2s ease;
    }
    .related a:hover{
      background:#fff4df;
      transform:translateY(-2px);
    }
    .alt-text{
      padding:18px;
      border-radius:18px;
      background:rgba(24,39,90,.07);
      color:#48506d;
      font-size:14px;
    }
    .site-footer{
      margin-top:24px;
      background:var(--indigo-deep);
      color:#f7ead3;
      border-top:1px solid rgba(255,255,255,.08);
    }
    .footer-inner{
      width:min(var(--container), calc(100% - 32px));
      margin:0 auto;
      padding:26px 0;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .footer-inner p{
      margin:0;
      color:#e6d7bd;
      font-size:14px;
    }
    .footer-links{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      justify-content:flex-end;
    }
    .footer-links a{
      color:#fff4dc;
      font-size:14px;
      font-weight:700;
    }
    .backtop{
      position:fixed;
      right:18px;
      bottom:18px;
      width:46px;
      height:46px;
      border:0;
      border-radius:16px;
      background:var(--indigo);
      color:#fff8ec;
      box-shadow:0 12px 28px rgba(16,26,61,.28);
      cursor:pointer;
      opacity:0;
      pointer-events:none;
      transform:translateY(10px);
      transition:.2s ease;
      z-index:18;
    }
    .backtop.show{
      opacity:1;
      pointer-events:auto;
      transform:translateY(0);
    }
    .reveal{
      opacity:0;
      transform:translateY(18px);
      transition:opacity .55s ease, transform .55s ease;
    }
    .reveal.visible{
      opacity:1;
      transform:translateY(0);
    }
    @keyframes floatGlow{
      0%,100%{transform:translate3d(0,0,0) scale(1)}
      50%{transform:translate3d(-14px,-10px,0) scale(1.05)}
    }
    @media (max-width:980px){
      .hero-grid,.price-box,.solution-wrap,.contact-layout{grid-template-columns:1fr}
      .service-grid{grid-template-columns:repeat(2,1fr)}
      .warranty-grid{grid-template-columns:repeat(2,1fr)}
      .related{grid-template-columns:1fr 1fr}
      .section-head{align-items:flex-start;flex-direction:column}
      .hero{padding-top:30px}
    }
    @media (max-width:760px){
      .nav{min-height:64px}
      .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:20px;
        background:#fff8ea;
        border:1px solid rgba(24,39,90,.14);
        box-shadow:0 20px 40px rgba(24,39,90,.16);
      }
      .nav-links.open{display:flex}
      .nav-links a,.nav-cta{justify-content:center;width:100%}
      .hero-copy{padding:26px 20px}
      .price-note{grid-template-columns:1fr}
      .phone-strip{grid-template-columns:1fr 1fr}
      section{padding:28px 0}
      .service-grid,.warranty-grid,.related{grid-template-columns:1fr}
      .footer-inner{
        flex-direction:column;
        align-items:flex-start;
      }
      .footer-links{justify-content:flex-start}
    }
    @media (max-width:420px){
      .container,.footer-inner{width:min(var(--container), calc(100% - 24px))}
      .brand small{display:none}
      .hero-actions .btn{width:100%}
      .phone-strip{grid-template-columns:1fr}
      .steps li{grid-template-columns:36px 1fr}
      .steps li:before{width:36px;height:36px;border-radius:13px}
    }
    @media (prefers-reduced-motion:reduce){
      *{scroll-behavior:auto;animation:none!important;transition:none!important}
      .reveal{opacity:1;transform:none}
    }