:root{
      --bg: #f7fbf6;
      --surface: rgba(255,255,255,.78);
      --surface-strong: rgba(255,255,255,.92);
      --text: #1b2330;
      --muted: #4b5568;
      --muted2:#6b778d;
      --line: rgba(17,24,39,.12);
      --shadow: 0 18px 45px rgba(16,185,129,.10), 0 10px 24px rgba(2,6,23,.06);
      --shadow2: 0 10px 30px rgba(2,6,23,.08);
      --green:#18c37a;
      --green2:#12a86a;
      --mint:#dffcf0;
      --mint2:#b8f5d1;
      --accent:#20d38d;
      --accent2:#0eb57b;
      --danger:#ef4444;
      --radius-xl: 22px;
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 10px;
      --container: 1160px;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei", sans-serif;
      color:var(--text);
      background:
        radial-gradient(1200px 540px at 10% -10%, rgba(34,197,94,.16), transparent 60%),
        radial-gradient(980px 520px at 90% 0%, rgba(16,185,129,.14), transparent 55%),
        radial-gradient(820px 420px at 50% 20%, rgba(16,185,129,.10), transparent 55%),
        linear-gradient(180deg, #f7fbf6 0%, #f3faf6 45%, #f7fbf6 100%);
      overflow-x:hidden;
    }

    a{color:inherit}
    .container{
      width: min(var(--container), calc(100% - 32px));
      margin: 0 auto;
    }

    .skip{
      position:absolute; left:-999px; top:auto; width:1px; height:1px; overflow:hidden;
    }
    .skip:focus{
      left:16px; top:16px; width:auto; height:auto; padding:10px 14px;
      background:#0b1220; color:#fff; border-radius:10px; z-index:9999;
    }

    /* Header / Nav */
    header{
      position:sticky; top:0; z-index:50;
      backdrop-filter: blur(10px);
      background: rgba(247,251,246,.65);
      border-bottom: 1px solid rgba(17,24,39,.08);
    }
    .nav-wrap{
      display:flex; align-items:center; justify-content:space-between; gap:16px;
      padding: 14px 0;
    }
    .brand{
      display:flex; align-items:center; gap:10px; min-width: 210px;
    }
    .brand img.ai-page-logo{
      width: 40px; height: 40px; border-radius: 12px;
      box-shadow: 0 10px 22px rgba(16,185,129,.18);
      object-fit: contain;
      background: rgba(255,255,255,.9);
      padding: 6px;
    }
    .brand .brand-text{
      display:flex; flex-direction:column; gap:2px; line-height:1.05;
    }
    .brand .name{
      font-weight: 860; letter-spacing: .2px; font-size: 14px;
    }
    .brand .tag{
      font-size:12px; color: var(--muted2);
    }

    .nav-right{
      display:flex; align-items:center; justify-content:flex-end; gap:12px;
      flex-wrap: nowrap;
    }
    .nav-links{
      display:flex; align-items:center; gap:14px;
      padding:0; margin:0; list-style:none;
    }
    .nav-links a{
      text-decoration:none;
      font-size:13px;
      color: #203040;
      opacity:.92;
      padding:10px 10px;
      border-radius:12px;
      transition: background-color .2s ease, transform .2s ease, opacity .2s ease;
      white-space:nowrap;
    }
    .nav-links a:hover{
      background: rgba(16,185,129,.10);
      transform: translateY(-1px);
      opacity:1;
    }

    .nav-cta{
      display:flex; align-items:center; gap:10px;
    }
    .btn{
      appearance:none; border:1px solid rgba(16,185,129,.22);
      background: rgba(255,255,255,.72);
      color: #0f2a1d;
      padding: 10px 14px;
      border-radius: 14px;
      font-weight: 730;
      font-size: 13px;
      cursor:pointer;
      transition: transform .15s ease, box-shadow .15s ease, background-color .15s ease, border-color .15s ease;
      text-decoration:none;
      display:inline-flex; align-items:center; justify-content:center; gap:10px;
      user-select:none;
      white-space:nowrap;
    }
    .btn:hover{
      transform: translateY(-1px);
      box-shadow: 0 10px 26px rgba(16,185,129,.18);
      background: rgba(255,255,255,.92);
      border-color: rgba(16,185,129,.35);
    }
    .btn-primary{
      background: linear-gradient(180deg, #21d38f 0%, #11b879 100%);
      border-color: rgba(16,185,129,.45);
      color:#052515;
      box-shadow: 0 16px 35px rgba(16,185,129,.20);
    }
    .btn-primary:hover{
      box-shadow: 0 22px 48px rgba(16,185,129,.26);
      background: linear-gradient(180deg, #24de96 0%, #12bf7e 100%);
    }
    .btn .dot{
      width:10px; height:10px; border-radius:50%;
      background: rgba(5,37,21,.8);
      box-shadow: 0 0 0 6px rgba(255,255,255,.28), 0 0 0 12px rgba(16,185,129,.14);
    }

    .hamburger{
      display:none;
      width:44px; height:44px; border-radius:14px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.7);
      cursor:pointer;
      transition: transform .15s ease, background-color .15s ease;
      position:relative;
    }
    .hamburger:hover{ transform: translateY(-1px); background: rgba(255,255,255,.92);}
    .hamburger span{
      position:absolute; left:12px; right:12px; height:2px; background:#0c2a1c; border-radius:10px;
      transition: transform .2s ease, top .2s ease, opacity .2s ease;
    }
    .hamburger span:nth-child(1){ top:15px; }
    .hamburger span:nth-child(2){ top:21px; opacity:1; }
    .hamburger span:nth-child(3){ top:27px; }
    .hamburger[aria-expanded="true"] span:nth-child(1){ top:21px; transform: rotate(45deg); }
    .hamburger[aria-expanded="true"] span:nth-child(2){ opacity:0; }
    .hamburger[aria-expanded="true"] span:nth-child(3){ top:21px; transform: rotate(-45deg); }

    .mobile-drawer{
      display:none;
      padding-bottom: 14px;
    }
    .mobile-drawer .drawer-panel{
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.78);
      border-radius: 18px;
      padding: 12px;
      box-shadow: 0 14px 36px rgba(2,6,23,.08);
    }
    .drawer-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:10px;
    }
    .drawer-grid a{
      text-decoration:none;
      padding:12px 12px;
      border-radius:14px;
      background: rgba(16,185,129,.06);
      border:1px solid rgba(16,185,129,.12);
      font-size:13px;
      color:#18313a;
      transition: transform .15s ease, background-color .15s ease;
      display:flex; align-items:center; justify-content:space-between; gap:10px;
    }
    .drawer-grid a:hover{ transform: translateY(-1px); background: rgba(16,185,129,.10); }
    .drawer-actions{
      display:flex; gap:10px; margin-top:12px;
    }
    .drawer-actions .btn{ flex:1; }

    /* Hero */
    .hero{
      padding: 34px 0 10px;
      position:relative;
    }
    .hero-grid{
      display:grid;
      grid-template-columns: 1.25fr .75fr;
      gap: 18px;
      align-items: start;
    }
    .hero-left{
      border-radius: var(--radius-xl);
      border: 1px solid rgba(16,185,129,.18);
      background:
        radial-gradient(800px 360px at 0% 0%, rgba(16,185,129,.22), transparent 55%),
        radial-gradient(700px 420px at 95% 15%, rgba(34,197,94,.18), transparent 56%),
        linear-gradient(180deg, rgba(255,255,255,.74), rgba(255,255,255,.55));
      box-shadow: var(--shadow);
      overflow:hidden;
      position:relative;
    }
    .hero-left::before{
      content:"";
      position:absolute; inset:-2px;
      background:
        radial-gradient(500px 220px at 15% 15%, rgba(34,197,94,.24), transparent 55%),
        radial-gradient(420px 240px at 85% 25%, rgba(16,185,129,.20), transparent 55%);
      pointer-events:none;
      opacity:.9;
    }

    .hero-content{
      position:relative;
      padding: 26px 22px 22px;
    }
    .eyebrow{
      display:flex; align-items:center; gap:10px; flex-wrap:wrap;
      margin-bottom: 12px;
    }
    .pill{
      display:inline-flex; align-items:center; gap:8px;
      border: 1px solid rgba(16,185,129,.22);
      background: rgba(223,252,240,.55);
      padding: 8px 10px;
      border-radius: 999px;
      font-size: 12px;
      color: #0e3b25;
      font-weight: 760;
      letter-spacing: .2px;
    }
    .pill svg{flex:0 0 auto}
    .hero-title{
      margin: 0 0 10px;
      font-size: clamp(26px, 3.4vw, 44px);
      line-height: 1.08;
      letter-spacing: -0.6px;
      font-weight: 920;
    }
    .hero-sub{
      margin: 0 0 18px;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.7;
      max-width: 68ch;
    }

    .hero-actions{
      display:flex; align-items:center; gap:12px; flex-wrap:wrap;
      margin-bottom: 18px;
    }
    .hero-actions .btn{
      padding: 12px 16px;
      border-radius: 16px;
    }
    .secondary-link{
      text-decoration:none;
      font-weight: 780;
      font-size: 13px;
      color:#0d3a27;
      display:flex; align-items:center; gap:10px;
      padding: 10px 12px;
      border-radius: 14px;
      border: 1px dashed rgba(16,185,129,.35);
      background: rgba(255,255,255,.55);
      transition: transform .15s ease, background-color .15s ease, border-color .15s ease;
      user-select:none;
    }
    .secondary-link:hover{
      transform: translateY(-1px);
      background: rgba(255,255,255,.9);
      border-color: rgba(16,185,129,.55);
    }

    .hero-meta{
      display:flex; gap:12px; flex-wrap:wrap;
      margin-top: 2px;
    }
    .meta-card{
      flex:1 1 190px;
      min-width: 190px;
      border-radius: 16px;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.70);
      padding: 12px 12px;
      display:flex; gap:10px; align-items:flex-start;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .meta-card:hover{
      transform: translateY(-2px);
      box-shadow: 0 14px 34px rgba(2,6,23,.10);
      border-color: rgba(16,185,129,.30);
    }
    .meta-icon{
      width: 36px; height: 36px; border-radius: 14px;
      background: rgba(16,185,129,.12);
      border: 1px solid rgba(16,185,129,.22);
      display:flex; align-items:center; justify-content:center;
      flex:0 0 auto;
    }
    .meta-text{ display:flex; flex-direction:column; gap:2px; }
    .meta-text b{
      font-size: 13px;
      letter-spacing: .1px;
    }
    .meta-text span{
      font-size: 12px;
      color: var(--muted2);
      line-height:1.35;
    }

    /* Right rail */
    .hero-right{
      display:flex; flex-direction:column; gap:12px;
    }
    .rail-card{
      border-radius: var(--radius-xl);
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.72);
      box-shadow: 0 18px 40px rgba(2,6,23,.06);
      overflow:hidden;
      position:relative;
    }
    .rail-card .inner{
      padding: 16px 16px 14px;
      position:relative;
    }
    .rail-card .inner h3{
      margin:0 0 8px; font-size: 14px; letter-spacing:.1px;
    }
    .rail-card .inner p{
      margin:0 0 12px; color: var(--muted); font-size: 13px; line-height:1.6;
    }

    .stat-grid{
      display:grid; grid-template-columns: 1fr 1fr;
      gap:10px;
      margin-top: 10px;
    }
    .stat{
      border-radius: 16px;
      border:1px solid rgba(16,185,129,.16);
      background: linear-gradient(180deg, rgba(223,252,240,.55), rgba(255,255,255,.65));
      padding: 12px 12px;
    }
    .stat .k{
      font-size: 20px; font-weight: 920; letter-spacing: -0.4px;
      display:flex; align-items:baseline; gap:6px;
    }
    .stat .k small{
      font-size: 12px; color: var(--muted2); font-weight: 780;
    }
    .stat .v{
      margin-top: 4px;
      font-size: 12px; color: var(--muted2); line-height:1.4;
    }

    .rail-quick{
      display:flex; flex-direction:column; gap:10px;
    }
    .stepline{
      display:flex; align-items:flex-start; gap:10px;
      padding: 12px 12px;
      border-radius: 18px;
      background: rgba(16,185,129,.06);
      border:1px solid rgba(16,185,129,.14);
      transition: transform .2s ease, background-color .2s ease, border-color .2s ease;
    }
    .stepline:hover{
      transform: translateY(-2px);
      background: rgba(16,185,129,.10);
      border-color: rgba(16,185,129,.26);
    }
    .badge-num{
      width: 30px; height: 30px; border-radius: 12px;
      background: rgba(16,185,129,.14);
      border:1px solid rgba(16,185,129,.25);
      display:flex; align-items:center; justify-content:center;
      font-weight: 920; font-size: 13px;
      flex:0 0 auto;
      color:#0d3a27;
    }
    .stepline b{ font-size: 13px; display:block; margin-bottom: 2px; }
    .stepline span{ font-size: 12px; color: var(--muted2); line-height:1.5; }

    /* Sections */
    main{ padding-bottom: 40px; }
    section{
      padding: 28px 0;
    }
    .section-title{
      display:flex; align-items:flex-end; justify-content:space-between; gap:12px; flex-wrap:wrap;
      margin-bottom: 14px;
    }
    .section-title h2{
      margin:0;
      font-size: 20px;
      letter-spacing: -0.2px;
      font-weight: 900;
    }
    .section-title p{
      margin:0;
      color: var(--muted);
      font-size: 13px;
      line-height:1.6;
      max-width: 70ch;
    }

    .grid-3{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .grid-2{ display:grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
    .card{
      border-radius: var(--radius-xl);
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.72);
      box-shadow: 0 16px 40px rgba(2,6,23,.05);
      overflow:hidden;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .card:hover{
      transform: translateY(-2px);
      border-color: rgba(16,185,129,.28);
      box-shadow: 0 22px 55px rgba(2,6,23,.08);
    }
    .card .card-inner{ padding: 16px; }
    .card h3{
      margin: 0 0 8px;
      font-size: 14px;
      letter-spacing: .1px;
      font-weight: 900;
    }
    .card p{
      margin:0;
      color: var(--muted);
      font-size: 13px;
      line-height:1.7;
    }

    .icon-circle{
      width: 44px; height: 44px; border-radius: 18px;
      display:flex; align-items:center; justify-content:center;
      border:1px solid rgba(16,185,129,.20);
      background: rgba(16,185,129,.10);
      margin-bottom: 10px;
    }

    /* Process */
    .process{
      background:
        radial-gradient(900px 380px at 20% 0%, rgba(16,185,129,.14), transparent 55%),
        radial-gradient(680px 320px at 90% 20%, rgba(34,197,94,.12), transparent 60%),
        rgba(255,255,255,.45);
      border:1px solid rgba(16,185,129,.12);
      border-radius: var(--radius-xl);
      padding: 18px;
    }
    .process-grid{
      display:grid; grid-template-columns: repeat(4, 1fr);
      gap: 12px;
    }
    .p-step{
      border-radius: 20px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.70);
      padding: 14px;
      position:relative;
      overflow:hidden;
      transition: transform .2s ease, border-color .2s ease;
    }
    .p-step:hover{ transform: translateY(-2px); border-color: rgba(16,185,129,.30); }
    .p-step::after{
      content:"";
      position:absolute; inset:auto -40px -60px auto;
      width: 160px; height: 160px; border-radius: 50%;
      background: radial-gradient(circle at 30% 30%, rgba(16,185,129,.18), transparent 60%);
      pointer-events:none;
    }
    .p-top{
      display:flex; align-items:center; gap:10px; margin-bottom: 8px; position:relative;
    }
    .p-step .pnum{
      width: 34px; height: 34px; border-radius: 14px;
      background: rgba(16,185,129,.12);
      border:1px solid rgba(16,185,129,.22);
      display:flex; align-items:center; justify-content:center;
      font-weight: 950;
    }
    .p-step b{ font-size: 13px; }
    .p-step span{
      color: var(--muted2);
      font-size: 12.5px;
      line-height:1.6;
      position:relative;
      display:block;
    }

    /* Comparison table */
    .table-wrap{
      border-radius: var(--radius-xl);
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.72);
      box-shadow: 0 18px 45px rgba(2,6,23,.06);
      overflow:hidden;
    }
    .table-top{
      padding: 16px;
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px; flex-wrap:wrap;
      border-bottom: 1px solid rgba(17,24,39,.08);
      background:
        radial-gradient(900px 240px at 0% 0%, rgba(16,185,129,.12), transparent 55%),
        rgba(255,255,255,.60);
    }
    .table-top .score{
      display:flex; gap:12px; align-items:center;
    }
    .starbox{
      width: 56px; height: 56px; border-radius: 22px;
      background: rgba(16,185,129,.14);
      border:1px solid rgba(16,185,129,.25);
      display:flex; align-items:center; justify-content:center;
      position:relative;
    }
    .starbox::before{
      content:"";
      position:absolute; inset:-8px;
      border-radius: 26px;
      background: radial-gradient(circle at 30% 30%, rgba(16,185,129,.25), transparent 60%);
      pointer-events:none;
      opacity:.85;
    }
    .score .s1{
      font-weight: 950;
      font-size: 22px;
      letter-spacing: -0.4px;
      display:flex; align-items:baseline; gap:8px;
    }
    .score .s1 small{
      font-size: 12px; color: var(--muted2); font-weight: 850;
    }
    .score .s2{
      color: var(--muted);
      font-size: 13px; line-height:1.4; margin-top: 3px;
      font-weight: 700;
    }
    .table-actions{
      display:flex; gap:10px; align-items:center; flex-wrap:wrap;
    }

    table{
      width:100%;
      border-collapse: collapse;
    }
    th, td{
      border-bottom: 1px solid rgba(17,24,39,.08);
      padding: 12px 12px;
      vertical-align: top;
      font-size: 13px;
      line-height:1.5;
    }
    thead th{
      background: rgba(16,185,129,.08);
      color:#113022;
      font-weight: 900;
      text-align:left;
    }
    tbody td:first-child{
      color: var(--muted2);
      width: 28%;
      font-weight: 800;
    }
    .tag-good{
      display:inline-flex; align-items:center; gap:8px;
      border:1px solid rgba(16,185,129,.26);
      background: rgba(223,252,240,.55);
      color:#0d3a27;
      padding: 6px 10px;
      border-radius: 999px;
      font-weight: 820;
      font-size: 12px;
      white-space:nowrap;
    }
    .tag-neutral{
      display:inline-flex; align-items:center; gap:8px;
      border:1px solid rgba(17,24,39,.14);
      background: rgba(255,255,255,.68);
      color:#1f2a37;
      padding: 6px 10px;
      border-radius: 999px;
      font-weight: 800;
      font-size: 12px;
      white-space:nowrap;
    }

    /* Case + article */
    .case-grid{
      display:grid;
      grid-template-columns: 1fr 1fr 1fr;
      gap: 14px;
    }
    .case-card{
      border-radius: var(--radius-xl);
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.72);
      overflow:hidden;
      box-shadow: 0 16px 42px rgba(2,6,23,.06);
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .case-card:hover{
      transform: translateY(-2px);
      border-color: rgba(16,185,129,.28);
      box-shadow: 0 26px 70px rgba(2,6,23,.10);
    }
    .case-media{
      padding: 14px;
      background:
        radial-gradient(520px 180px at 0% 0%, rgba(16,185,129,.16), transparent 55%),
        rgba(16,185,129,.06);
      border-bottom: 1px solid rgba(17,24,39,.08);
      display:flex; align-items:center; justify-content:center;
      min-height: 110px;
    }
    .case-media .glyph{
      width: 54px; height: 54px; border-radius: 22px;
      border:1px solid rgba(16,185,129,.25);
      background: rgba(223,252,240,.55);
      display:flex; align-items:center; justify-content:center;
      box-shadow: 0 18px 38px rgba(16,185,129,.16);
    }
    .case-card .ci{
      padding: 14px;
      display:flex; flex-direction:column; gap:10px;
    }
    .case-top{
      display:flex; align-items:flex-start; justify-content:space-between; gap:10px;
    }
    .case-card h3{
      margin:0;
      font-size: 14px; font-weight: 950; letter-spacing:.1px;
    }
    .case-card p{
      margin:0;
      color: var(--muted);
      font-size: 13px; line-height:1.7;
    }
    .case-tags{
      display:flex; flex-wrap:wrap; gap:8px;
      margin-top: 2px;
    }
    .chip{
      border-radius: 999px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.64);
      padding: 6px 10px;
      font-size: 12px; color: var(--muted2);
      font-weight: 800;
    }

    .article-list{
      display:grid; grid-template-columns: 1fr 1fr; gap: 14px;
    }
    .list-card{
      border-radius: var(--radius-xl);
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.72);
      overflow:hidden;
      box-shadow: 0 16px 42px rgba(2,6,23,.05);
    }
    .list-card .lc-inner{ padding: 16px; }
    .list-card h3{ margin:0 0 8px; font-size: 14px; font-weight: 950;}
    .items{
      display:flex; flex-direction:column; gap:10px;
      margin-top: 10px;
    }
    .item{
      padding: 12px 12px;
      border-radius: 16px;
      border:1px solid rgba(17,24,39,.08);
      background: rgba(255,255,255,.60);
      transition: transform .2s ease, border-color .2s ease;
    }
    .item:hover{ transform: translateY(-2px); border-color: rgba(16,185,129,.28); }
    .item a{
      text-decoration:none;
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
    }
    .item .t{
      display:flex; flex-direction:column; gap:4px;
    }
    .item b{ font-size: 13px; line-height:1.3; }
    .item span{ font-size: 12px; color: var(--muted2); line-height:1.4; }
    .arrow{
      width: 28px; height: 28px; border-radius: 12px;
      border:1px solid rgba(16,185,129,.22);
      background: rgba(223,252,240,.50);
      display:flex; align-items:center; justify-content:center; flex:0 0 auto;
      transition: transform .2s ease;
    }
    .item:hover .arrow{ transform: translateX(2px); }

    /* FAQ */
    .faq{
      border-radius: var(--radius-xl);
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.72);
      box-shadow: 0 18px 45px rgba(2,6,23,.06);
      overflow:hidden;
    }
    .faq-head{
      padding: 16px;
      border-bottom: 1px solid rgba(17,24,39,.08);
      background:
        radial-gradient(820px 260px at 0% 0%, rgba(16,185,129,.14), transparent 55%),
        rgba(255,255,255,.60);
    }
    .faq-head h3{ margin:0; font-size: 15px; font-weight: 950; }
    .faq-head p{ margin:8px 0 0; color: var(--muted); font-size: 13px; line-height:1.6; }

    details.faq-item{
      padding: 0 16px;
      border-bottom: 1px solid rgba(17,24,39,.08);
      background: rgba(255,255,255,.55);
    }
    details.faq-item:last-child{ border-bottom:none; }
    details.faq-item summary{
      list-style:none;
      cursor:pointer;
      padding: 14px 0;
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
      user-select:none;
    }
    details.faq-item summary::-webkit-details-marker{ display:none; }
    .qtext{
      font-weight: 920;
      letter-spacing: .1px;
      font-size: 13.5px;
      line-height:1.5;
      padding-right: 10px;
    }
    .chev{
      width: 34px; height: 34px; border-radius: 14px;
      border:1px solid rgba(16,185,129,.22);
      background: rgba(223,252,240,.50);
      display:flex; align-items:center; justify-content:center;
      flex:0 0 auto;
      transition: transform .2s ease;
      margin-top: -2px;
    }
    details[open] .chev{ transform: rotate(180deg); }
    .ans{
      padding: 0 0 14px;
      color: var(--muted);
      font-size: 13px;
      line-height:1.75;
    }

    /* Reviews */
    .review-grid{
      display:grid; grid-template-columns: repeat(3, 1fr); gap: 14px;
    }
    .review-card{
      border-radius: var(--radius-xl);
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.72);
      box-shadow: 0 16px 42px rgba(2,6,23,.05);
      padding: 16px;
      transition: transform .2s ease, border-color .2s ease;
      position:relative;
      overflow:hidden;
    }
    .review-card::before{
      content:"";
      position:absolute; inset:-2px auto auto -2px;
      width: 140px; height: 140px; border-radius: 50%;
      background: radial-gradient(circle at 30% 30%, rgba(16,185,129,.18), transparent 62%);
      pointer-events:none;
    }
    .review-top{
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      position:relative;
    }
    .avatar{
      width: 44px; height: 44px; border-radius: 18px;
      background: rgba(16,185,129,.10);
      border:1px solid rgba(16,185,129,.22);
      display:flex; align-items:center; justify-content:center;
      font-weight: 950; color:#0d3a27;
      letter-spacing:.2px;
    }
    .stars{
      display:flex; gap:3px; align-items:center;
      color:#0f7a4c;
      font-weight: 950;
      position:relative;
    }
    .review-card p{
      position:relative;
      margin: 12px 0 0;
      color: var(--muted);
      font-size: 13px;
      line-height:1.8;
    }
    .review-meta{
      position:relative;
      margin-top: 12px;
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      color: var(--muted2);
      font-size: 12px;
      font-weight: 800;
    }

    /* Price / timeline */
    .timeline{
      border-radius: var(--radius-xl);
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.72);
      box-shadow: 0 18px 45px rgba(2,6,23,.06);
      padding: 16px;
    }
    .timeline-grid{
      display:grid;
      grid-template-columns: 1fr 1fr 1fr;
      gap:12px;
      margin-top: 10px;
    }
    .tcard{
      border-radius: 20px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.62);
      padding: 14px;
      transition: transform .2s ease, border-color .2s ease;
    }
    .tcard:hover{ transform: translateY(-2px); border-color: rgba(16,185,129,.30); }
    .tcard .head{
      display:flex; align-items:flex-start; justify-content:space-between; gap:10px;
    }
    .tcard b{ font-size: 13.5px; font-weight: 950; }
    .tcard .cost{
      font-weight: 950; letter-spacing:-.3px; color:#0d3a27;
      font-size: 18px;
    }
    .tcard p{
      margin: 8px 0 0;
      color: var(--muted);
      font-size: 13px; line-height:1.7;
    }
    .tcard .small{
      margin-top:10px;
      color: var(--muted2);
      font-size: 12px;
      font-weight: 800;
    }

    /* Network */
    .network{
      display:grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 14px;
      align-items: start;
    }
    .network .map{
      border-radius: var(--radius-xl);
      border:1px solid rgba(17,24,39,.10);
      background:
        radial-gradient(860px 320px at 10% 0%, rgba(16,185,129,.14), transparent 55%),
        rgba(255,255,255,.70);
      box-shadow: 0 18px 45px rgba(2,6,23,.06);
      padding: 16px;
      overflow:hidden;
      position:relative;
      min-height: 260px;
    }
    .network .map::after{
      content:"";
      position:absolute; inset:0;
      background:
        linear-gradient(90deg, rgba(16,185,129,.10) 1px, transparent 1px),
        linear-gradient(180deg, rgba(16,185,129,.08) 1px, transparent 1px);
      background-size: 34px 34px;
      opacity:.35;
      pointer-events:none;
    }
    .map-inner{
      position:relative;
      height: 100%;
      display:flex; flex-direction:column; gap:12px;
    }
    .dots{
      flex:1;
      display:flex;
      align-items:center;
      justify-content:center;
      position:relative;
      min-height: 150px;
    }
    .node{
      position:absolute;
      width: 12px; height: 12px; border-radius:50%;
      background: rgba(16,185,129,.95);
      box-shadow: 0 0 0 6px rgba(16,185,129,.18), 0 10px 22px rgba(16,185,129,.20);
      animation: pulse 2.2s ease-in-out infinite;
    }
    .node.n1{ left: 18%; top: 28%; animation-delay: 0s;}
    .node.n2{ left: 38%; top: 46%; animation-delay: .3s;}
    .node.n3{ left: 60%; top: 34%; animation-delay: .6s;}
    .node.n4{ left: 72%; top: 60%; animation-delay: .9s;}
    .node.n5{ left: 28%; top: 66%; animation-delay: 1.2s;}
    @keyframes pulse{
      0%,100%{ transform: scale(1); opacity: .95; }
      50%{ transform: scale(1.2); opacity: .75; }
    }
    .network .map h3{
      position:relative; margin:0; font-size: 15px; font-weight: 950;
    }
    .network .map p{
      position:relative; margin:0; color: var(--muted); font-size: 13px; line-height:1.7;
    }

    .netlist{
      border-radius: var(--radius-xl);
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.72);
      box-shadow: 0 18px 45px rgba(2,6,23,.06);
      padding: 16px;
    }
    .netlist h3{ margin:0 0 10px; font-size: 15px; font-weight: 950; }
    .net-items{
      display:flex; flex-direction:column; gap:10px;
    }
    .net-item{
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
      padding: 12px;
      border-radius: 18px;
      background: rgba(223,252,240,.42);
      border:1px solid rgba(16,185,129,.16);
    }
    .net-item b{ font-size: 13px; }
    .net-item span{ display:block; color: var(--muted2); font-size: 12.5px; line-height:1.5; margin-top: 3px; font-weight: 750; }
    .net-item .k{
      width: 34px; height: 34px; border-radius: 14px;
      border:1px solid rgba(16,185,129,.22);
      background: rgba(255,255,255,.65);
      display:flex; align-items:center; justify-content:center;
      flex:0 0 auto;
      font-weight: 950; color:#0d3a27;
    }

    /* Form */
    .form-card{
      border-radius: var(--radius-xl);
      border:1px solid rgba(17,24,39,.10);
      background:
        radial-gradient(900px 260px at 0% 0%, rgba(16,185,129,.14), transparent 55%),
        rgba(255,255,255,.72);
      box-shadow: 0 18px 45px rgba(2,6,23,.06);
      overflow:hidden;
    }
    .form-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 0;
    }
    .form-left{
      padding: 16px;
      border-right: 1px solid rgba(17,24,39,.08);
    }
    .form-left h3{
      margin:0 0 8px;
      font-size: 15px;
      font-weight: 950;
    }
    .form-left p{
      margin:0;
      color: var(--muted);
      font-size: 13px;
      line-height:1.7;
    }
    .form-left .bullets{
      margin-top: 12px;
      display:flex; flex-direction:column; gap:10px;
    }
    .bullet{
      display:flex; gap:10px; align-items:flex-start;
      padding: 12px;
      background: rgba(255,255,255,.62);
      border:1px solid rgba(17,24,39,.08);
      border-radius: 18px;
    }
    .bullet .bico{
      width: 34px; height: 34px; border-radius: 14px;
      background: rgba(16,185,129,.10);
      border:1px solid rgba(16,185,129,.22);
      display:flex; align-items:center; justify-content:center;
      flex:0 0 auto;
      color:#0d3a27;
      font-weight: 950;
    }
    .bullet b{ font-size: 13px; display:block; margin-bottom: 2px; }
    .bullet span{ font-size: 12.5px; color: var(--muted2); line-height:1.5; font-weight: 760; }

    form{
      padding: 16px;
    }
    .fields{
      display:flex; flex-direction:column; gap:10px;
    }
    label{
      font-size: 12.5px; color: var(--muted2); font-weight: 850;
      display:block;
      margin-bottom: 6px;
    }
    .field{
      width:100%;
      border:1px solid rgba(17,24,39,.14);
      background: rgba(255,255,255,.72);
      padding: 12px 12px;
      border-radius: 14px;
      font-size: 14px;
      outline:none;
      transition: border-color .15s ease, box-shadow .15s ease;
    }
    .field:focus{
      border-color: rgba(16,185,129,.55);
      box-shadow: 0 0 0 4px rgba(16,185,129,.14);
    }
    textarea.field{ min-height: 100px; resize: vertical; }

    .form-actions{
      display:flex; gap:10px; align-items:center; justify-content:space-between;
      margin-top: 10px;
      flex-wrap:wrap;
    }
    .hint{
      color: var(--muted2);
      font-size: 12px;
      line-height:1.4;
      font-weight: 760;
    }

    /* Footer */
    footer{
      border-top: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.60);
      padding: 26px 0 18px;
    }
    .footer-grid{
      display:grid; grid-template-columns: 1.15fr 1fr;
      gap: 14px;
      align-items:start;
    }
    .foot-brand{
      display:flex; gap:12px; align-items:flex-start;
    }
    .foot-brand img{
      width: 46px; height: 46px; border-radius: 18px;
      background: rgba(255,255,255,.85);
      border:1px solid rgba(16,185,129,.22);
      padding: 6px;
      object-fit: contain;
    }
    .foot-brand b{
      display:block; font-size: 14px; font-weight: 950; margin-top: 2px;
    }
    .foot-brand p{
      margin: 8px 0 0;
      color: var(--muted);
      font-size: 13px; line-height:1.7;
    }
    .foot-links{
      display:grid; grid-template-columns: 1fr 1fr;
      gap: 10px;
      align-items:start;
    }
    .foot-box{
      border-radius: 18px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.65);
      padding: 12px;
    }
    .foot-box h4{
      margin:0 0 10px;
      font-size: 13px; font-weight: 950;
    }
    .foot-box .linklist{
      display:flex; flex-direction:column; gap:8px;
      margin:0; padding:0; list-style:none;
    }
    .foot-box .linklist a{
      text-decoration:none;
      font-size: 13px; color: #1f2a37; font-weight: 820;
      display:inline-flex; align-items:center; justify-content:space-between; gap:10px;
      padding: 8px 10px;
      border-radius: 12px;
      border:1px solid rgba(17,24,39,.08);
      background: rgba(255,255,255,.55);
      transition: transform .15s ease, border-color .15s ease;
    }
    .foot-box .linklist a:hover{
      transform: translateY(-1px);
      border-color: rgba(16,185,129,.30);
    }
    .copyright{
      margin-top: 14px;
      color: var(--muted2);
      font-size: 12px;
      font-weight: 800;
      display:flex; align-items:center; justify-content:space-between; gap:12px; flex-wrap:wrap;
    }

    /* Floating customer */
    .float-kefu{
      position:fixed;
      right: 14px;
      bottom: 14px;
      z-index: 80;
      display:flex; flex-direction:column; gap:10px;
      align-items:flex-end;
      pointer-events:none;
    }
    .float-kefu .btn{
      pointer-events:auto;
      border-radius: 18px;
      padding: 10px 12px;
    }
    .kefu-panel{
      pointer-events:auto;
      width: 230px;
      border-radius: 20px;
      border:1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.88);
      box-shadow: 0 26px 70px rgba(2,6,23,.18);
      overflow:hidden;
      transform-origin: 100% 100%;
      transition: transform .2s ease, opacity .2s ease;
    }
    .kefu-panel[aria-hidden="true"]{
      opacity:0;
      transform: scale(.98);
      pointer-events:none;
    }
    .kefu-top{
      padding: 12px 12px;
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      border-bottom: 1px solid rgba(17,24,39,.08);
      background: rgba(223,252,240,.55);
    }
    .kefu-top b{ font-size: 13px; font-weight: 950; }
    .kefu-close{
      width: 34px; height: 34px; border-radius: 14px;
      border:1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.70);
      cursor:pointer;
      display:flex; align-items:center; justify-content:center;
      transition: transform .15s ease;
    }
    .kefu-close:hover{ transform: translateY(-1px); }
    .kefu-body{
      padding: 12px;
    }
    .kefu-body img{
      width: 100%;
      height:auto;
      border-radius: 16px;
      border: 1px solid rgba(17,24,39,.10);
      display:block;
      background: #fff;
    }
    .kefu-body .mini{
      margin-top: 10px;
      color: var(--muted);
      font-size: 12.5px;
      line-height: 1.55;
      font-weight: 800;
    }

    /* Reveal */
    .reveal{
      opacity:0;
      transform: translateY(12px);
      transition: opacity .55s ease, transform .55s ease;
    }
    .reveal.in{
      opacity:1;
      transform: translateY(0);
    }

    /* Back to top */
    .to-top{
      position:fixed;
      left: 14px;
      bottom: 14px;
      z-index: 79;
      width: 44px; height: 44px;
      border-radius: 18px;
      border:1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.76);
      box-shadow: 0 18px 40px rgba(2,6,23,.10);
      display:flex; align-items:center; justify-content:center;
      cursor:pointer;
      transition: transform .15s ease, opacity .2s ease;
      opacity:0;
      pointer-events:none;
    }
    .to-top.show{
      opacity:1; pointer-events:auto;
    }
    .to-top:hover{ transform: translateY(-2px); }

    /* Responsive */
    @media (max-width: 980px){
      .hero-grid{ grid-template-columns: 1fr; }
      .nav-links{ display:none; }
      .hamburger{ display:inline-flex; align-items:center; justify-content:center; }
      .mobile-drawer{ display:block; }
      .grid-3{ grid-template-columns: 1fr; }
      .grid-2{ grid-template-columns: 1fr; }
      .process-grid{ grid-template-columns: 1fr 1fr; }
      .case-grid{ grid-template-columns: 1fr; }
      .article-list{ grid-template-columns: 1fr; }
      .review-grid{ grid-template-columns: 1fr; }
      .timeline-grid{ grid-template-columns: 1fr; }
      .network{ grid-template-columns: 1fr; }
      .footer-grid{ grid-template-columns: 1fr; }
      .foot-links{ grid-template-columns: 1fr; }
      .form-grid{ grid-template-columns: 1fr; }
      .form-left{ border-right:none; border-bottom:1px solid rgba(17,24,39,.08); }
      .float-kefu{ right: 10px; bottom: 10px; }
      .kefu-panel{ width: 210px; }
    }