:root{
      --bg0:#fbf7f1;
      --bg1:#f6f9ff;
      --card:#ffffff;
      --text:#1f2937;
      --muted:#6b7280;
      --line:rgba(17,24,39,.10);
      --shadow: 0 10px 30px rgba(17,24,39,.08);
      --shadow2: 0 6px 18px rgba(17,24,39,.10);
      --brand:#1d4ed8;
      --brand2:#0ea5e9;
      --chip:#eef2ff;
      --focus: 0 0 0 4px rgba(29,78,216,.14);
      --radius: 18px;
      --radius2: 12px;
    }
    *{box-sizing:border-box}
    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(1000px 500px at 15% -10%, rgba(14,165,233,.16), transparent 55%),
        radial-gradient(900px 460px at 85% 0%, rgba(29,78,216,.14), transparent 55%),
        linear-gradient(180deg, var(--bg0) 0%, #ffffff 38%, var(--bg1) 100%);
      overflow-x:hidden;
    }
    .container{
      width:100%;
      max-width: 1040px;
      margin:0 auto;
      padding: 0 18px;
    }
    header{
      position: sticky;
      top: 0;
      z-index: 30;
      backdrop-filter: blur(10px);
      background: rgba(255,255,255,.65);
      border-bottom: 1px solid rgba(17,24,39,.08);
    }
    .nav{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding: 12px 0;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:10px;
      min-width: 170px;
    }
    .logo{
      width:36px;height:36px;
      border-radius:12px;
      background: linear-gradient(135deg, rgba(29,78,216,.95), rgba(14,165,233,.90));
      box-shadow: 0 12px 30px rgba(29,78,216,.18);
      position:relative;
      flex:0 0 auto;
    }
    .logo:after{
      content:"";
      position:absolute;
      inset:9px;
      border-radius:9px;
      border:2px solid rgba(255,255,255,.85);
      transform: rotate(8deg);
      opacity:.9;
    }
    .brand-text{
      display:flex;
      flex-direction:column;
      line-height:1.1;
    }
    .brand-text strong{
      font-size: 14px;
      letter-spacing:.2px;
    }
    .brand-text span{
      font-size: 12px;
      color: var(--muted);
      margin-top: 3px;
      white-space:nowrap;
    }
    .nav-right{
      display:flex;
      align-items:center;
      gap:10px;
    }
    .menu-btn{
      display:none;
      appearance:none;
      border:1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.75);
      border-radius: 12px;
      padding: 10px 12px;
      color: var(--text);
      font-weight: 600;
      cursor:pointer;
      min-height: 42px;
      transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
    }
    .menu-btn:active{transform: translateY(1px)}
    .menu-btn:focus{outline:none; box-shadow: var(--focus)}
    .nav-links{
      display:flex;
      align-items:center;
      gap: 8px;
      flex-wrap: wrap;
      justify-content:flex-end;
    }
    .nav-links a{
      text-decoration:none;
      color: var(--text);
      font-weight: 600;
      font-size: 13px;
      padding: 10px 12px;
      border-radius: 999px;
      border: 1px solid rgba(17,24,39,.08);
      background: rgba(255,255,255,.55);
      transition: background .15s ease, border-color .15s ease, transform .15s ease;
      white-space:nowrap;
    }
    .nav-links a:hover{
      background: rgba(255,255,255,.85);
      border-color: rgba(29,78,216,.25);
      transform: translateY(-1px);
    }
    .cta{
      text-decoration:none;
      color: white;
      background: linear-gradient(135deg, rgba(29,78,216,.98), rgba(14,165,233,.92));
      border-radius: 999px;
      padding: 11px 14px;
      font-weight: 800;
      font-size: 13px;
      border: 1px solid rgba(255,255,255,.35);
      box-shadow: 0 12px 30px rgba(29,78,216,.20);
      transition: transform .15s ease, box-shadow .15s ease, filter .15s ease;
      white-space:nowrap;
    }
    .cta:hover{
      transform: translateY(-1px);
      box-shadow: 0 16px 40px rgba(29,78,216,.26);
      filter: saturate(1.02);
    }
    .cta:focus{outline:none; box-shadow: var(--focus)}
    main{padding: 18px 0 24px}
    .hero{
      padding: 18px 0 6px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 18px;
      align-items: stretch;
    }
    .hero-left{
      border-radius: var(--radius);
      background: linear-gradient(180deg, rgba(255,255,255,.85), rgba(255,255,255,.60));
      border: 1px solid rgba(17,24,39,.08);
      box-shadow: 0 18px 40px rgba(17,24,39,.08);
      padding: 20px;
      position:relative;
      overflow:hidden;
    }
    .hero-left:before{
      content:"";
      position:absolute;
      width: 520px;
      height: 520px;
      border-radius: 50%;
      left: -260px;
      top: -280px;
      background: radial-gradient(circle at 30% 30%, rgba(29,78,216,.22), transparent 60%);
      pointer-events:none;
      animation: floaty 7s ease-in-out infinite;
    }
    .hero-left:after{
      content:"";
      position:absolute;
      width: 540px;
      height: 540px;
      border-radius: 50%;
      right: -280px;
      bottom: -320px;
      background: radial-gradient(circle at 35% 35%, rgba(14,165,233,.16), transparent 62%);
      pointer-events:none;
      animation: floaty2 9s ease-in-out infinite;
    }
    @keyframes floaty{
      0%,100%{transform: translate3d(0,0,0)}
      50%{transform: translate3d(16px,18px,0)}
    }
    @keyframes floaty2{
      0%,100%{transform: translate3d(0,0,0)}
      50%{transform: translate3d(-18px,-12px,0)}
    }
    .kicker{
      display:flex;
      align-items:center;
      gap:10px;
      position:relative;
      z-index:2;
    }
    .pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding: 8px 10px;
      border-radius: 999px;
      background: rgba(29,78,216,.08);
      border: 1px solid rgba(29,78,216,.16);
      color: rgba(29,78,216,.95);
      font-weight: 800;
      font-size: 12px;
      letter-spacing: .2px;
    }
    .pill i{
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: linear-gradient(135deg, rgba(29,78,216,1), rgba(14,165,233,1));
      box-shadow: 0 10px 20px rgba(29,78,216,.25);
      display:inline-block;
    }
    .hero h1{
      margin: 14px 0 10px;
      font-size: clamp(26px, 3.4vw, 38px);
      letter-spacing: -0.5px;
      line-height: 1.12;
      position:relative;
      z-index:2;
    }
    .sub{
      margin:0;
      color: var(--muted);
      font-size: 14px;
      line-height:1.7;
      position:relative;
      z-index:2;
      max-width: 58ch;
    }
    .hero-actions{
      display:flex;
      align-items:center;
      gap: 12px;
      margin-top: 16px;
      flex-wrap:wrap;
      position:relative;
      z-index:2;
    }
    .btn{
      appearance:none;
      border: 1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.8);
      color: var(--text);
      border-radius: 14px;
      padding: 11px 14px;
      font-weight: 800;
      cursor:pointer;
      transition: transform .15s ease, box-shadow .15s ease, background .15s ease, border-color .15s ease;
      min-height: 44px;
      display:inline-flex;
      align-items:center;
      gap:10px;
      text-decoration:none;
      white-space:nowrap;
    }
    .btn:hover{
      transform: translateY(-1px);
      box-shadow: var(--shadow2);
      background: rgba(255,255,255,.95);
      border-color: rgba(29,78,216,.22);
    }
    .btn:focus{outline:none; box-shadow: var(--focus)}
    .btn .icon{
      width: 28px; height: 28px;
      border-radius: 10px;
      background: rgba(29,78,216,.10);
      border: 1px solid rgba(29,78,216,.16);
      display:inline-flex;
      align-items:center;
      justify-content:center;
      flex:0 0 auto;
    }
    .btn-primary{
      background: linear-gradient(135deg, rgba(29,78,216,.98), rgba(14,165,233,.92));
      border-color: rgba(255,255,255,.30);
      color:#fff;
      box-shadow: 0 16px 40px rgba(29,78,216,.24);
    }
    .btn-primary .icon{
      background: rgba(255,255,255,.18);
      border-color: rgba(255,255,255,.30);
    }
    .hero-right{
      border-radius: var(--radius);
      background: rgba(255,255,255,.75);
      border: 1px solid rgba(17,24,39,.08);
      box-shadow: 0 18px 40px rgba(17,24,39,.06);
      padding: 16px;
      display:flex;
      flex-direction:column;
      gap: 12px;
      overflow:hidden;
    }
    .right-top{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:12px;
    }
    .right-title{
      display:flex;
      flex-direction:column;
      gap:6px;
    }
    .right-title strong{
      font-size: 14px;
      letter-spacing:.2px;
    }
    .right-title span{
      color: var(--muted);
      font-size: 13px;
      line-height:1.6;
    }
    .badge{
      flex:0 0 auto;
      display:flex;
      flex-direction:column;
      align-items:flex-end;
      gap:6px;
    }
    .badge .tag{
      padding: 7px 10px;
      border-radius: 999px;
      background: rgba(14,165,233,.10);
      border: 1px solid rgba(14,165,233,.18);
      color: rgba(3,105,161,.95);
      font-weight: 900;
      font-size: 12px;
    }
    .badge .small{
      color: var(--muted);
      font-size: 12px;
      max-width: 18ch;
      text-align:right;
      line-height:1.4;
    }
    .card-list{
      display:grid;
      gap: 10px;
      padding: 0;
      margin:0;
      list-style:none;
    }
    .mini-card{
      border-radius: 14px;
      background: rgba(255,255,255,.82);
      border: 1px solid rgba(17,24,39,.08);
      padding: 12px 12px;
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap: 12px;
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
      cursor: default;
    }
    .mini-card:hover{
      transform: translateY(-1px);
      box-shadow: 0 14px 30px rgba(17,24,39,.08);
      border-color: rgba(29,78,216,.20);
    }
    .mini-left{
      display:flex;
      align-items:flex-start;
      gap:10px;
      min-width: 0;
    }
    .mini-ico{
      width: 34px; height: 34px;
      border-radius: 12px;
      background: rgba(29,78,216,.10);
      border: 1px solid rgba(29,78,216,.16);
      display:flex;
      align-items:center;
      justify-content:center;
      flex: 0 0 auto;
    }
    .mini-card h3{
      margin:0;
      font-size: 13px;
      letter-spacing:.2px;
      line-height:1.35;
    }
    .mini-card p{
      margin: 5px 0 0;
      color: var(--muted);
      font-size: 12.5px;
      line-height:1.55;
    }
    .mini-right{
      flex: 0 0 auto;
      color: rgba(29,78,216,.95);
      font-weight: 900;
      font-size: 12px;
      padding-top: 2px;
      white-space:nowrap;
    }

    section{
      padding: 14px 0;
    }
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:12px;
      margin-bottom: 12px;
    }
    .section-head h2{
      margin:0;
      font-size: 18px;
      letter-spacing: -.2px;
    }
    .section-head p{
      margin:0;
      color: var(--muted);
      font-size: 13px;
      line-height:1.6;
      max-width: 56ch;
    }

    .grid-2{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      align-items:start;
    }
    .panel{
      border-radius: var(--radius);
      background: rgba(255,255,255,.74);
      border: 1px solid rgba(17,24,39,.08);
      box-shadow: 0 18px 40px rgba(17,24,39,.05);
      padding: 16px;
      overflow:hidden;
      position:relative;
    }
    .panel:before{
      content:"";
      position:absolute;
      width: 220px;
      height: 220px;
      border-radius: 50%;
      left: -140px;
      top: -140px;
      background: radial-gradient(circle at 30% 30%, rgba(29,78,216,.16), transparent 62%);
      pointer-events:none;
    }
    .panel-inner{position:relative; z-index:1}
    .panel h3{
      margin:0 0 8px;
      font-size: 15px;
      letter-spacing:.1px;
    }
    .panel p{
      margin:0 0 12px;
      color: var(--muted);
      font-size: 13px;
      line-height:1.7;
    }
    .steps{
      margin:0;
      padding:0;
      list-style:none;
      display:grid;
      gap:10px;
    }
    .step{
      display:flex;
      gap:10px;
      align-items:flex-start;
      padding: 10px 10px;
      border-radius: 14px;
      background: rgba(255,255,255,.72);
      border: 1px solid rgba(17,24,39,.08);
    }
    .step .num{
      width: 28px; height: 28px;
      border-radius: 10px;
      background: rgba(29,78,216,.10);
      border: 1px solid rgba(29,78,216,.16);
      display:flex;
      align-items:center;
      justify-content:center;
      font-weight: 1000;
      color: rgba(29,78,216,.95);
      flex:0 0 auto;
      margin-top:1px;
    }
    .step strong{
      display:block;
      font-size: 13px;
      margin-top:1px;
    }
    .step span{
      display:block;
      color: var(--muted);
      font-size: 12.8px;
      line-height:1.6;
      margin-top: 4px;
    }

    .faq-wrap{
      display:grid;
      gap: 10px;
    }
    details.faq{
      border-radius: 14px;
      border: 1px solid rgba(17,24,39,.08);
      background: rgba(255,255,255,.78);
      padding: 12px 12px;
      box-shadow: 0 10px 25px rgba(17,24,39,.03);
      transition: border-color .15s ease, box-shadow .15s ease, transform .15s ease;
    }
    details.faq[open]{
      border-color: rgba(29,78,216,.22);
      box-shadow: 0 16px 35px rgba(17,24,39,.06);
      transform: translateY(-1px);
    }
    summary{
      cursor:pointer;
      list-style:none;
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap: 12px;
      font-weight: 900;
      font-size: 14px;
      padding-right: 10px;
    }
    summary::-webkit-details-marker{display:none}
    .chev{
      width: 26px; height: 26px;
      border-radius: 10px;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.75);
      display:flex;
      align-items:center;
      justify-content:center;
      flex:0 0 auto;
      margin-top: -2px;
      transition: transform .18s ease;
    }
    details[open] .chev{transform: rotate(180deg)}
    .faq-body{
      margin-top: 10px;
      color: var(--muted);
      font-size: 13px;
      line-height:1.75;
    }

    .contact{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      align-items:start;
    }
    .form-panel{
      padding: 16px;
    }
    .form-head{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap: 12px;
      margin-bottom: 12px;
      position:relative;
      z-index:1;
    }
    .form-head h2{
      margin:0;
      font-size: 18px;
      letter-spacing: -.2px;
    }
    .form-head p{
      margin: 8px 0 0;
      color: var(--muted);
      font-size: 13px;
      line-height:1.65;
      max-width: 46ch;
    }
    form{
      display:grid;
      gap: 10px;
      position:relative;
      z-index:1;
    }
    .field{
      display:grid;
      gap: 6px;
    }
    .label{
      font-size: 12.5px;
      color: rgba(31,41,55,.88);
      font-weight: 850;
      letter-spacing:.2px;
    }
    input, textarea{
      width:100%;
      border: 1px solid rgba(17,24,39,.14);
      background: rgba(255,255,255,.86);
      border-radius: 14px;
      padding: 12px 12px;
      color: var(--text);
      font-size: 14px;
      transition: box-shadow .15s ease, border-color .15s ease, background .15s ease;
      outline:none;
    }
    textarea{min-height: 108px; resize: vertical}
    input:focus, textarea:focus{
      box-shadow: var(--focus);
      border-color: rgba(29,78,216,.32);
      background:#fff;
    }
    .form-row{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
    }
    .submit-row{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap: 12px;
      flex-wrap: wrap;
      margin-top: 2px;
    }
    .primary-submit{
      width: 100%;
      appearance:none;
      border: 0;
      background: linear-gradient(135deg, rgba(29,78,216,.98), rgba(14,165,233,.92));
      color: #fff;
      border-radius: 16px;
      padding: 12px 14px;
      font-weight: 1000;
      font-size: 14px;
      cursor:pointer;
      min-height: 46px;
      box-shadow: 0 16px 40px rgba(29,78,216,.22);
      transition: transform .15s ease, box-shadow .15s ease, filter .15s ease, opacity .15s ease;
    }
    .primary-submit:hover{
      transform: translateY(-1px);
      box-shadow: 0 20px 52px rgba(29,78,216,.28);
      filter: saturate(1.03);
    }
    .primary-submit:focus{outline:none; box-shadow: var(--focus)}
    .primary-submit[disabled]{
      cursor:not-allowed;
      opacity:.7;
      transform:none;
      box-shadow: 0 10px 26px rgba(29,78,216,.12);
    }
    .help{
      color: var(--muted);
      font-size: 12.8px;
      line-height:1.65;
      margin: 0;
    }
    .status{
      border-radius: 14px;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.72);
      padding: 10px 12px;
      color: var(--muted);
      font-size: 12.8px;
      line-height:1.6;
      display:none;
    }
    .status.show{display:block}
    .status.ok{
      border-color: rgba(16,185,129,.25);
      background: rgba(16,185,129,.08);
      color: rgba(4,120,87,.95);
      font-weight: 700;
    }
    .status.err{
      border-color: rgba(239,68,68,.25);
      background: rgba(239,68,68,.08);
      color: rgba(185,28,28,.95);
      font-weight: 700;
    }
    footer{
      background: rgba(255,255,255,.72);
      border-top: 1px solid rgba(17,24,39,.08);
      padding: 16px 0 18px;
      margin-top: 10px;
    }
    .foot-grid{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap: 12px;
      flex-wrap:wrap;
    }
    .foot-left{
      display:flex;
      flex-direction:column;
      gap:8px;
    }
    .foot-left strong{
      font-size: 14px;
      letter-spacing:.2px;
    }
    .foot-left span{
      color: var(--muted);
      font-size: 12.8px;
      line-height:1.6;
      max-width: 55ch;
    }
    .foot-links{
      display:flex;
      align-items:center;
      gap: 10px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }
    .foot-links a{
      color: rgba(31,41,55,.92);
      text-decoration:none;
      font-weight: 800;
      font-size: 12.8px;
      padding: 8px 10px;
      border-radius: 999px;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.78);
      transition: transform .15s ease, border-color .15s ease, background .15s ease;
      white-space:nowrap;
    }
    .foot-links a:hover{
      transform: translateY(-1px);
      border-color: rgba(29,78,216,.22);
      background: rgba(255,255,255,.95);
    }

    @media (max-width: 900px){
      .hero-grid{grid-template-columns: 1fr}
      .grid-2{grid-template-columns: 1fr}
      .contact{grid-template-columns: 1fr}
      .menu-btn{display:inline-flex}
      .nav-links{display:none}
    }
    @media (max-width: 520px){
      .container{padding: 0 14px}
      .hero-left{padding: 16px}
      .hero-right{padding: 14px}
      .form-row{grid-template-columns:1fr}
      .brand{min-width: unset}
      .brand-text span{display:none}
      .sub{font-size: 13.5px}
    }

    @media (prefers-reduced-motion: reduce){
      *{animation: none !important; transition: none !important; scroll-behavior: auto !important}
    }