:root{
      --bg0:#f7f7fb;
      --bg1:#ffffff;
      --text:#0f172a;
      --muted:#5b6477;
      --muted2:#7b8498;
      --card:#ffffff;
      --stroke:rgba(15,23,42,.12);
      --stroke2:rgba(15,23,42,.18);
      --brand1:#6d28d9;
      --brand2:#06b6d4;
      --brand3:#22c55e;
      --brand4:#f97316;
      --shadow: 0 18px 60px rgba(16,24,40,.10);
      --shadow2: 0 10px 30px rgba(16,24,40,.10);
      --radius:18px;
      --radius2:14px;
      --container: 1160px;
      --gap: 18px;
      --focus: rgba(6,182,212,.35);
    }
    *{ box-sizing:border-box; }
    html{ scroll-behavior:smooth; }
    body{
      margin:0;
      font-family: ui-sans-serif, system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB",
        "Microsoft YaHei", "Noto Sans CJK SC", "Segoe UI", Roboto, Arial, "Apple Color Emoji","Segoe UI Emoji";
      color:var(--text);
      background:
        radial-gradient(1200px 600px at 15% -10%, rgba(109,40,217,.20), transparent 60%),
        radial-gradient(900px 520px at 85% 0%, rgba(6,182,212,.18), transparent 55%),
        radial-gradient(700px 420px at 30% 35%, rgba(34,197,94,.12), transparent 52%),
        linear-gradient(180deg, #f8fafc 0%, var(--bg0) 30%, #ffffff 100%);
    }
    a{ color:inherit; text-decoration:none; }
    .container{
      width: min(var(--container), calc(100% - 32px));
      margin: 0 auto;
    }

    .skip-link{
      position:absolute; left:14px; top:-60px;
      padding:10px 12px; background:#0b1220; color:#fff; border-radius:12px;
      z-index:9999; transition: top .2s ease;
    }
    .skip-link:focus{ top:14px; outline: 3px solid var(--focus); }

    header{
      position: sticky; top:0;
      z-index: 50;
      backdrop-filter: blur(10px);
      background: rgba(248,250,252,.72);
      border-bottom: 1px solid rgba(15,23,42,.06);
    }
    .nav-wrap{
      display:flex; align-items:center; justify-content:space-between;
      padding: 14px 0;
      gap: 14px;
    }
    .brand{
      display:flex; align-items:center; gap:10px; min-width: 220px;
    }
    .brand img.ai-page-logo{ width:38px; height:38px; object-fit:contain; }
    .brand .brand-text{
      display:flex; flex-direction:column; line-height:1.05;
    }
    .brand .brand-name{
      font-weight: 860; letter-spacing:.2px;
      font-size: 16px;
    }
    .brand .brand-sub{
      font-size: 12px; color: var(--muted);
      margin-top: 4px;
      white-space: nowrap;
    }

    .nav-right{
      display:flex; align-items:center; gap: 10px;
    }
    .nav-links{
      display:flex; align-items:center; gap: 14px;
      flex-wrap: nowrap;
    }
    .nav-links a{
      font-size: 13px; color: rgba(15,23,42,.78);
      padding: 10px 10px; border-radius: 12px;
      transition: background .2s ease, transform .2s ease, color .2s ease;
      white-space: nowrap;
    }
    .nav-links a:hover{
      background: rgba(109,40,217,.08);
      color: rgba(15,23,42,1);
      transform: translateY(-1px);
    }

    .btn{
      border:1px solid rgba(15,23,42,.14);
      background: #fff;
      color: rgba(15,23,42,.92);
      border-radius: 999px;
      padding: 10px 14px;
      font-weight: 720;
      font-size: 13px;
      cursor:pointer;
      transition: transform .15s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
      display:inline-flex; align-items:center; justify-content:center; gap:10px;
      user-select:none;
    }
    .btn:focus{ outline: 3px solid var(--focus); outline-offset: 2px; }
    .btn:hover{ transform: translateY(-1px); box-shadow: 0 10px 24px rgba(16,24,40,.10); border-color: rgba(109,40,217,.35); }
    .btn-primary{
      border-color: rgba(109,40,217,.22);
      background: linear-gradient(135deg, rgba(109,40,217,.92) 0%, rgba(6,182,212,.88) 60%, rgba(34,197,94,.72) 100%);
      color: #fff;
      box-shadow: 0 16px 38px rgba(109,40,217,.18);
    }
    .btn-primary:hover{ box-shadow: 0 22px 60px rgba(109,40,217,.25); border-color: rgba(109,40,217,.35); }
    .btn-ghost{
      background: rgba(255,255,255,.6);
    }
    .icon-dot{
      width:10px; height:10px; border-radius:50%;
      background: radial-gradient(circle at 30% 30%, #fff 0%, rgba(255,255,255,.35) 25%, rgba(255,255,255,0) 40%),
        linear-gradient(135deg, var(--brand1), var(--brand2));
      box-shadow: 0 0 0 4px rgba(109,40,217,.15);
    }

    .burger{
      display:none;
      width:44px; height:44px;
      border-radius: 14px;
      border:1px solid rgba(15,23,42,.12);
      background: rgba(255,255,255,.7);
      cursor:pointer;
      align-items:center; justify-content:center;
      transition: transform .15s ease, box-shadow .2s ease;
    }
    .burger:hover{ transform: translateY(-1px); box-shadow: 0 10px 24px rgba(16,24,40,.10); }
    .burger .lines{
      width:18px; height:14px; position:relative;
    }
    .burger .lines span{
      position:absolute; left:0; right:0; height:2px; border-radius:2px;
      background: rgba(15,23,42,.85);
      transition: transform .18s ease, top .18s ease, opacity .18s ease;
    }
    .burger .lines span:nth-child(1){ top:0; }
    .burger .lines span:nth-child(2){ top:6px; }
    .burger .lines span:nth-child(3){ top:12px; }

    .mobile-drawer{
      display:none;
      padding: 0 0 16px 0;
    }
    .drawer-panel{
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.78);
      border-radius: 16px;
      padding: 10px;
      box-shadow: 0 18px 60px rgba(16,24,40,.10);
    }
    .drawer-links{
      display:grid; gap: 8px;
      padding: 8px;
    }
    .drawer-links a{
      padding: 12px 12px;
      border-radius: 12px;
      font-size: 14px;
      color: rgba(15,23,42,.88);
      background: rgba(255,255,255,.55);
      border:1px solid rgba(15,23,42,.08);
      transition: transform .15s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .drawer-links a:hover{
      transform: translateY(-1px);
      box-shadow: 0 12px 24px rgba(16,24,40,.08);
      border-color: rgba(109,40,217,.28);
    }
    .drawer-actions{
      display:flex; gap:10px; padding: 10px 8px 6px;
      flex-wrap: wrap;
    }

    main{ padding-bottom: 30px; }
    .section{
      padding: 56px 0;
    }
    .section.tight{ padding: 40px 0; }
    .section-head{
      display:flex; align-items:flex-end; justify-content:space-between;
      gap: 16px; margin-bottom: 18px;
    }
    .kicker{
      display:inline-flex; align-items:center; gap:10px;
      padding: 9px 12px;
      border-radius: 999px;
      background: rgba(255,255,255,.7);
      border:1px solid rgba(15,23,42,.08);
      color: rgba(15,23,42,.82);
      font-size: 12px;
      width: fit-content;
    }
    .kicker .spark{
      width:18px; height:18px; border-radius:6px;
      background: linear-gradient(135deg, rgba(109,40,217,.95), rgba(6,182,212,.85));
      box-shadow: 0 10px 22px rgba(109,40,217,.18);
      position:relative;
      overflow:hidden;
    }
    .kicker .spark::after{
      content:"";
      position:absolute; inset:-40%;
      background: linear-gradient(90deg, transparent, rgba(255,255,255,.55), transparent);
      transform: rotate(25deg);
      animation: sheen 2.8s ease-in-out infinite;
      opacity:.85;
    }
    @keyframes sheen{
      0%{ transform: translateX(-40%) rotate(25deg); opacity:.0;}
      35%{ opacity:.9;}
      65%{ opacity:.8;}
      100%{ transform: translateX(40%) rotate(25deg); opacity:0;}
    }

    h1{
      font-size: 40px;
      line-height: 1.1;
      margin: 12px 0 0;
      letter-spacing: -0.6px;
    }
    .hero{
      padding: 34px 0 20px;
    }
    .hero-grid{
      display:grid; gap: 22px;
      grid-template-columns: 1.1fr .9fr;
      align-items: stretch;
    }
    .hero-card{
      position:relative;
      border-radius: 22px;
      border:1px solid rgba(15,23,42,.10);
      background:
        radial-gradient(1200px 420px at 15% 0%, rgba(109,40,217,.22), transparent 55%),
        radial-gradient(900px 420px at 95% 10%, rgba(6,182,212,.18), transparent 52%),
        linear-gradient(180deg, rgba(255,255,255,.82) 0%, rgba(255,255,255,.68) 100%);
      box-shadow: var(--shadow);
      overflow:hidden;
      padding: 26px;
    }
    .hero-card::before{
      content:"";
      position:absolute; inset:-2px;
      background:
        radial-gradient(600px 220px at 22% 20%, rgba(109,40,217,.18), transparent 55%),
        radial-gradient(500px 200px at 70% 10%, rgba(6,182,212,.18), transparent 52%),
        radial-gradient(420px 180px at 80% 70%, rgba(34,197,94,.10), transparent 55%);
      filter: blur(0px);
      pointer-events:none;
    }
    .hero-inner{ position:relative; z-index:1; }
    .hero-lead{
      margin: 14px 0 0;
      color: rgba(15,23,42,.78);
      font-size: 15.5px;
      line-height: 1.65;
      max-width: 620px;
    }
    .hero-actions{
      margin-top: 18px;
      display:flex; align-items:center; gap: 12px; flex-wrap:wrap;
    }
    .hero-badges{
      margin-top: 18px;
      display:flex; gap: 10px; flex-wrap: wrap;
    }
    .badge{
      padding: 10px 12px;
      border-radius: 999px;
      background: rgba(255,255,255,.74);
      border:1px solid rgba(15,23,42,.08);
      display:flex; align-items:center; gap:10px;
      font-size: 13px; color: rgba(15,23,42,.82);
    }
    .badge .mini{
      width: 10px; height:10px; border-radius:50%;
      background: linear-gradient(135deg, var(--brand1), var(--brand2));
      box-shadow: 0 0 0 4px rgba(6,182,212,.12);
    }

    .hero-side{
      border-radius: 22px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.78);
      box-shadow: var(--shadow2);
      padding: 18px;
      display:flex; flex-direction:column; gap: 14px;
      overflow:hidden;
      position:relative;
    }
    .hero-side::after{
      content:"";
      position:absolute; right:-80px; top:-110px;
      width: 260px; height: 260px; border-radius: 50%;
      background: radial-gradient(circle at 30% 30%, rgba(109,40,217,.22), rgba(6,182,212,.12) 45%, transparent 70%);
      pointer-events:none;
    }
    .side-title{
      position:relative; z-index:1;
      display:flex; align-items:center; justify-content:space-between; gap: 12px;
    }
    .side-title h2{
      font-size: 16px; margin:0;
      letter-spacing: -0.2px;
    }
    .chip{
      font-size: 12px; color: rgba(15,23,42,.72);
      padding: 8px 10px;
      border-radius: 999px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.65);
      white-space: nowrap;
    }

    .metrics{
      position:relative; z-index:1;
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }
    .metric{
      border-radius: 16px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.72);
      padding: 14px 12px;
      transition: transform .15s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .metric:hover{
      transform: translateY(-2px);
      border-color: rgba(109,40,217,.28);
      box-shadow: 0 16px 40px rgba(16,24,40,.10);
    }
    .metric .value{
      font-size: 20px;
      font-weight: 900;
      letter-spacing: -0.4px;
    }
    .metric .label{
      margin-top: 8px;
      color: rgba(15,23,42,.72);
      font-size: 12.5px;
      line-height: 1.35;
    }

    .side-box{
      position:relative; z-index:1;
      border-radius: 18px;
      border: 1px solid rgba(15,23,42,.10);
      background:
        linear-gradient(180deg, rgba(255,255,255,.8), rgba(255,255,255,.62));
      padding: 14px;
    }
    .side-box .row{
      display:flex; align-items:flex-start; justify-content:space-between; gap: 12px;
      margin-bottom: 10px;
    }
    .side-box .row:last-child{ margin-bottom: 0; }
    .side-box .row .left{
      display:flex; gap: 10px; align-items:flex-start;
    }
    .pill{
      width: 34px; height: 34px;
      border-radius: 12px;
      border:1px solid rgba(15,23,42,.10);
      background: linear-gradient(135deg, rgba(109,40,217,.16), rgba(6,182,212,.14));
      display:flex; align-items:center; justify-content:center;
      flex: 0 0 auto;
    }
    .side-box .row .title{
      font-weight: 830;
      font-size: 13.5px;
      margin: 0;
    }
    .side-box .row .desc{
      margin-top: 4px;
      color: rgba(15,23,42,.70);
      font-size: 12.5px;
      line-height: 1.4;
    }

    .fade-in{
      opacity:0; transform: translateY(10px);
      transition: opacity .6s ease, transform .6s ease;
    }
    .fade-in.show{
      opacity:1; transform: translateY(0);
    }

    .cards{
      display:grid;
      grid-template-columns: repeat(12, 1fr);
      gap: 16px;
    }
    .card{
      grid-column: span 4;
      border-radius: var(--radius);
      background: rgba(255,255,255,.76);
      border: 1px solid rgba(15,23,42,.10);
      box-shadow: 0 14px 40px rgba(16,24,40,.08);
      padding: 18px;
      transition: transform .15s ease, box-shadow .2s ease, border-color .2s ease;
      position:relative;
      overflow:hidden;
      min-height: 168px;
    }
    .card:hover{
      transform: translateY(-3px);
      border-color: rgba(109,40,217,.28);
      box-shadow: 0 24px 70px rgba(16,24,40,.12);
    }
    .card .card-icon{
      width: 44px; height: 44px; border-radius: 16px;
      background: linear-gradient(135deg, rgba(109,40,217,.16), rgba(6,182,212,.14));
      border: 1px solid rgba(15,23,42,.10);
      display:flex; align-items:center; justify-content:center;
    }
    .card .card-icon svg{ width: 22px; height: 22px; }
    .card h3{
      margin: 12px 0 8px;
      font-size: 16px;
      letter-spacing: -0.2px;
    }
    .card p{
      margin: 0;
      color: rgba(15,23,42,.72);
      font-size: 13.5px;
      line-height: 1.65;
    }
    .card .tag-row{
      display:flex; gap: 8px; flex-wrap: wrap;
      margin-top: 12px;
    }
    .tag{
      font-size: 12px;
      color: rgba(15,23,42,.72);
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
      padding: 7px 10px;
      border-radius: 999px;
    }

    .grid-2{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .panel{
      border-radius: 20px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.76);
      box-shadow: 0 16px 50px rgba(16,24,40,.08);
      overflow:hidden;
    }
    .panel .panel-inner{ padding: 18px; }
    .panel h2{ margin: 0 0 8px; font-size: 18px; letter-spacing: -0.2px; }
    .panel p{ margin: 0; color: rgba(15,23,42,.72); line-height: 1.7; font-size: 13.8px; }
    .list{
      margin: 14px 0 0;
      padding:0; list-style:none;
      display:grid; gap: 10px;
    }
    .list li{
      display:flex; gap: 10px; align-items:flex-start;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
      border-radius: 16px;
      padding: 12px;
    }
    .check{
      width: 22px; height: 22px; border-radius: 8px;
      background: linear-gradient(135deg, rgba(109,40,217,.20), rgba(6,182,212,.16));
      border:1px solid rgba(15,23,42,.10);
      display:flex; align-items:center; justify-content:center;
      flex: 0 0 auto;
      margin-top: 2px;
    }
    .check svg{ width: 14px; height: 14px; }
    .list .li-title{
      font-weight: 840; font-size: 13.5px;
      margin: 0;
    }
    .list .li-desc{
      margin-top: 4px;
      color: rgba(15,23,42,.70);
      font-size: 12.8px;
      line-height: 1.5;
    }

    .stepper{
      display:grid;
      grid-template-columns: repeat(12, 1fr);
      gap: 14px;
    }
    .step{
      grid-column: span 3;
      border-radius: 18px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.74);
      padding: 16px;
      position:relative;
      overflow:hidden;
      transition: transform .15s ease, box-shadow .2s ease, border-color .2s ease;
      min-height: 168px;
    }
    .step:hover{
      transform: translateY(-3px);
      border-color: rgba(6,182,212,.28);
      box-shadow: 0 22px 60px rgba(16,24,40,.12);
    }
    .step .num{
      font-weight: 950;
      font-size: 26px;
      letter-spacing: -1px;
      background: linear-gradient(135deg, rgba(109,40,217,.95), rgba(6,182,212,.85), rgba(34,197,94,.78));
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
      margin-bottom: 10px;
    }
    .step h3{ margin: 0 0 8px; font-size: 15.5px; }
    .step p{ margin: 0; color: rgba(15,23,42,.72); font-size: 13.2px; line-height: 1.65; }

    .compare-wrap{
      border-radius: 22px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.78);
      box-shadow: var(--shadow2);
      overflow:hidden;
    }
    .compare-head{
      padding: 18px;
      border-bottom:1px solid rgba(15,23,42,.08);
      background:
        radial-gradient(900px 260px at 20% 0%, rgba(109,40,217,.18), transparent 55%),
        radial-gradient(700px 240px at 90% 20%, rgba(6,182,212,.16), transparent 52%),
        linear-gradient(180deg, rgba(255,255,255,.85), rgba(255,255,255,.70));
      display:flex; align-items:flex-start; justify-content:space-between; gap: 16px;
      flex-wrap: wrap;
    }
    .rating{
      display:flex; align-items:center; gap: 14px;
    }
    .stars{
      display:flex; gap: 6px; align-items:center;
    }
    .star{
      width: 18px; height:18px;
      background: conic-gradient(from 180deg, rgba(249,115,22,.95), rgba(109,40,217,.85));
      -webkit-mask: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill=%23000 d="m12 17.27l5.18 3.73-1.64-6.07L20.5 10.5l-6.1-.52L12 4.3 9.6 9.98l-6.1.52 4.96 3.43-1.64 6.07z"/>') center / contain no-repeat;
      mask: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill=%23000 d="m12 17.27l5.18 3.73-1.64-6.07L20.5 10.5l-6.1-.52L12 4.3 9.6 9.98l-6.1.52 4.96 3.43-1.64 6.07z"/>') center / contain no-repeat;
    }
    .rating .score{
      font-weight: 980; font-size: 28px; letter-spacing:-.8px;
      background: linear-gradient(135deg, rgba(109,40,217,.95), rgba(6,182,212,.85));
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
    }
    .rating .meta{
      color: rgba(15,23,42,.72);
      font-size: 13.2px;
      line-height: 1.2;
      margin-top: 4px;
    }

    .compare-table{
      width:100%;
      border-collapse: collapse;
      font-size: 13.5px;
    }
    .compare-table th, .compare-table td{
      padding: 14px 14px;
      border-bottom:1px solid rgba(15,23,42,.08);
      vertical-align: top;
    }
    .compare-table th{
      text-align:left;
      background: rgba(255,255,255,.55);
      color: rgba(15,23,42,.82);
      font-weight: 880;
    }
    .compare-table tr:last-child td{ border-bottom:0; }
    .cell-highlight{
      background: linear-gradient(180deg, rgba(109,40,217,.10), rgba(6,182,212,.06));
      border:1px solid rgba(109,40,217,.16);
      border-radius: 14px;
      padding: 10px 12px;
      display:inline-block;
      width: 100%;
    }
    .cell-muted{
      color: rgba(15,23,42,.70);
      line-height: 1.6;
    }
    .pill-compact{
      display:inline-flex; align-items:center; gap:8px;
      padding: 8px 10px;
      border-radius: 999px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.60);
      margin-top: 10px;
      font-size: 12.5px;
      color: rgba(15,23,42,.75);
    }

    .timeline{
      display:grid;
      grid-template-columns: repeat(12, 1fr);
      gap: 14px;
    }
    .t-item{
      grid-column: span 4;
      border-radius: 20px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.76);
      padding: 16px;
      transition: transform .15s ease, box-shadow .2s ease, border-color .2s ease;
      position:relative; overflow:hidden;
      min-height: 160px;
    }
    .t-item::before{
      content:"";
      position:absolute; inset:-40px -40px auto auto;
      width: 120px; height: 120px; border-radius: 50%;
      background: radial-gradient(circle at 30% 30%, rgba(109,40,217,.20), transparent 60%);
      pointer-events:none;
    }
    .t-item:hover{
      transform: translateY(-3px);
      border-color: rgba(109,40,217,.28);
      box-shadow: 0 22px 60px rgba(16,24,40,.12);
    }
    .t-title{
      margin:0; font-weight: 900; letter-spacing: -.2px;
      font-size: 15.5px;
      position:relative; z-index:1;
    }
    .t-desc{
      margin-top: 8px;
      color: rgba(15,23,42,.72);
      line-height: 1.65;
      font-size: 13.2px;
      position:relative; z-index:1;
    }
    .t-meta{
      margin-top: 12px;
      display:flex; gap: 8px; flex-wrap: wrap;
      position:relative; z-index:1;
    }

    .cards-slim{
      display:grid;
      grid-template-columns: repeat(12, 1fr);
      gap: 14px;
    }
    .slim{
      grid-column: span 3;
      border-radius: 18px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.75);
      padding: 14px;
      box-shadow: 0 14px 40px rgba(16,24,40,.06);
      transition: transform .15s ease, box-shadow .2s ease, border-color .2s ease;
      min-height: 140px;
      display:flex; flex-direction:column;
    }
    .slim:hover{
      transform: translateY(-3px);
      border-color: rgba(6,182,212,.28);
      box-shadow: 0 22px 60px rgba(16,24,40,.12);
    }
    .slim .top{
      display:flex; align-items:center; justify-content:space-between; gap: 10px;
      margin-bottom: 10px;
    }
    .slim .dot{
      width: 12px; height:12px; border-radius: 50%;
      background: linear-gradient(135deg, rgba(109,40,217,.95), rgba(6,182,212,.85));
      box-shadow: 0 0 0 4px rgba(109,40,217,.14);
    }
    .slim h3{ margin:0; font-size: 14.5px; letter-spacing: -.2px; }
    .slim p{
      margin: 0;
      color: rgba(15,23,42,.72);
      font-size: 12.8px;
      line-height: 1.6;
    }
    .slim .foot{
      margin-top:auto;
      padding-top: 10px;
      color: rgba(15,23,42,.74);
      font-size: 12.4px;
    }

    .workshop{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      align-items: start;
    }
    .form-card{
      border-radius: 22px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.78);
      box-shadow: var(--shadow2);
      overflow:hidden;
    }
    .form-head{
      padding: 18px;
      border-bottom:1px solid rgba(15,23,42,.08);
      background:
        radial-gradient(900px 260px at 10% 0%, rgba(109,40,217,.16), transparent 55%),
        radial-gradient(700px 240px at 95% 20%, rgba(6,182,212,.14), transparent 52%),
        linear-gradient(180deg, rgba(255,255,255,.88), rgba(255,255,255,.72));
    }
    .form-head h2{ margin:0; font-size: 18px; letter-spacing:-.2px; }
    .form-head p{ margin: 8px 0 0; color: rgba(15,23,42,.72); line-height: 1.65; font-size: 13.5px; }

    form{ padding: 18px; }
    .field-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }
    .field{ display:flex; flex-direction:column; gap: 8px; }
    label{
      font-size: 12.5px;
      color: rgba(15,23,42,.78);
      font-weight: 760;
    }
    input, select, textarea{
      border:1px solid rgba(15,23,42,.12);
      background: rgba(255,255,255,.72);
      border-radius: 14px;
      padding: 12px 12px;
      font-size: 14px;
      color: rgba(15,23,42,.92);
      transition: border-color .2s ease, box-shadow .2s ease, transform .15s ease;
      outline: none;
      width: 100%;
    }
    textarea{ min-height: 110px; resize: vertical; }
    input:focus, select:focus, textarea:focus{
      border-color: rgba(6,182,212,.42);
      box-shadow: 0 0 0 4px rgba(6,182,212,.16);
    }
    .form-actions{
      display:flex; align-items:center; justify-content:space-between; gap: 12px;
      flex-wrap: wrap;
      margin-top: 14px;
    }
    .fineprint{
      font-size: 12.3px;
      color: rgba(15,23,42,.68);
      line-height: 1.5;
      max-width: 360px;
    }

    .articles{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      align-items:start;
    }
    .article-list{
      display:grid; gap: 12px;
    }
    .article-item{
      border-radius: 18px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.76);
      padding: 14px;
      transition: transform .15s ease, box-shadow .2s ease, border-color .2s ease;
      display:flex; align-items:flex-start; justify-content:space-between; gap: 12px;
    }
    .article-item:hover{
      transform: translateY(-2px);
      border-color: rgba(109,40,217,.28);
      box-shadow: 0 22px 60px rgba(16,24,40,.12);
    }
    .article-item .left{
      min-width: 0;
    }
    .article-item h3{
      margin:0;
      font-size: 14.7px;
      letter-spacing: -.2px;
    }
    .article-item p{
      margin: 8px 0 0;
      color: rgba(15,23,42,.72);
      font-size: 12.8px;
      line-height: 1.6;
    }
    .arrow{
      width: 36px; height: 36px;
      border-radius: 14px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
      display:flex; align-items:center; justify-content:center;
      flex: 0 0 auto;
    }
    .arrow svg{ width: 16px; height:16px; }

    .faq{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      align-items:start;
    }
    details{
      border-radius: 18px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.76);
      box-shadow: 0 14px 40px rgba(16,24,40,.06);
      padding: 14px;
      transition: border-color .2s ease, box-shadow .2s ease, transform .15s ease;
    }
    details[open]{
      border-color: rgba(6,182,212,.30);
      box-shadow: 0 22px 60px rgba(16,24,40,.12);
      transform: translateY(-2px);
    }
    summary{
      cursor:pointer;
      list-style:none;
      display:flex; align-items:flex-start; justify-content:space-between; gap: 12px;
      font-weight: 900;
      letter-spacing: -.2px;
      font-size: 14.2px;
      color: rgba(15,23,42,.92);
      outline:none;
    }
    summary::-webkit-details-marker{ display:none; }
    .sum-icon{
      width: 34px; height: 34px;
      border-radius: 14px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.60);
      display:flex; align-items:center; justify-content:center;
      flex: 0 0 auto;
      transition: transform .2s ease;
    }
    details[open] .sum-icon{ transform: rotate(180deg); }
    .sum-icon svg{ width: 16px; height:16px; }
    .faq-answer{
      margin-top: 10px;
      color: rgba(15,23,42,.72);
      font-size: 13.2px;
      line-height: 1.7;
    }

    .comments{
      display:grid;
      grid-template-columns: repeat(12, 1fr);
      gap: 14px;
    }
    .comment{
      grid-column: span 4;
      border-radius: 22px;
      border:1px solid rgba(15,23,42,.10);
      background:
        radial-gradient(900px 260px at 0% 0%, rgba(109,40,217,.14), transparent 55%),
        radial-gradient(700px 240px at 100% 0%, rgba(6,182,212,.12), transparent 52%),
        rgba(255,255,255,.78);
      box-shadow: 0 16px 50px rgba(16,24,40,.08);
      padding: 16px;
      transition: transform .15s ease, box-shadow .2s ease, border-color .2s ease;
      min-height: 190px;
      display:flex; flex-direction:column;
      gap: 12px;
    }
    .comment:hover{
      transform: translateY(-3px);
      border-color: rgba(109,40,217,.28);
      box-shadow: 0 24px 70px rgba(16,24,40,.12);
    }
    .comment .who{
      display:flex; align-items:center; gap: 10px;
      margin-bottom: 2px;
    }
    .avatar{
      width: 44px; height: 44px; border-radius: 16px;
      border:1px solid rgba(15,23,42,.10);
      background: linear-gradient(135deg, rgba(109,40,217,.18), rgba(6,182,212,.14));
      display:flex; align-items:center; justify-content:center;
      font-weight: 950;
      letter-spacing: -.4px;
      color: rgba(15,23,42,.88);
    }
    .who .name{
      font-weight: 920; letter-spacing:-.2px;
      font-size: 14.5px;
      margin:0;
    }
    .who .role{
      margin-top: 4px;
      color: rgba(15,23,42,.70);
      font-size: 12.6px;
      line-height: 1.2;
    }
    .quote{
      margin:0;
      color: rgba(15,23,42,.78);
      font-size: 13.3px;
      line-height: 1.7;
    }
    .comment .bottom{
      margin-top:auto;
      display:flex; align-items:center; justify-content:space-between; gap: 12px; flex-wrap:wrap;
      color: rgba(15,23,42,.70);
      font-size: 12.5px;
    }
    .mini-tags{ display:flex; gap: 8px; flex-wrap:wrap; }
    .mini-tag{
      padding: 7px 10px;
      border-radius: 999px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
      color: rgba(15,23,42,.72);
      font-size: 12px;
    }

    .case-grid{
      display:grid;
      grid-template-columns: repeat(12, 1fr);
      gap: 14px;
    }
    .case{
      grid-column: span 4;
      border-radius: 22px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.78);
      box-shadow: 0 16px 50px rgba(16,24,40,.08);
      overflow:hidden;
      transition: transform .15s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .case:hover{
      transform: translateY(-3px);
      border-color: rgba(6,182,212,.28);
      box-shadow: 0 24px 70px rgba(16,24,40,.12);
    }
    .case .media{
      padding: 16px;
      background:
        radial-gradient(600px 220px at 10% 0%, rgba(109,40,217,.20), transparent 55%),
        radial-gradient(520px 220px at 95% 0%, rgba(6,182,212,.16), transparent 52%),
        linear-gradient(180deg, rgba(255,255,255,.86), rgba(255,255,255,.72));
      border-bottom: 1px solid rgba(15,23,42,.08);
    }
    .case .media .thumb{
      width: 100%;
      aspect-ratio: 16/10;
      border-radius: 18px;
      border:1px solid rgba(15,23,42,.10);
      background:
        linear-gradient(135deg, rgba(109,40,217,.18), rgba(6,182,212,.14)),
        radial-gradient(circle at 20% 20%, rgba(255,255,255,.55), rgba(255,255,255,0) 45%),
        rgba(255,255,255,.62);
      display:flex; align-items:center; justify-content:center;
      position:relative;
      overflow:hidden;
    }
    .case .media .thumb::after{
      content:"";
      position:absolute; inset:-40%;
      background: linear-gradient(90deg, transparent, rgba(255,255,255,.55), transparent);
      transform: rotate(25deg) translateX(-30%);
      opacity: .55;
      animation: floatSheen 3.2s ease-in-out infinite;
    }
    @keyframes floatSheen{
      0%{ transform: rotate(25deg) translateX(-40%); opacity:.0;}
      35%{ opacity:.7;}
      70%{ opacity:.55;}
      100%{ transform: rotate(25deg) translateX(40%); opacity:0;}
    }
    .case .media .thumb .thumb-label{
      position:relative; z-index:1;
      font-weight: 920; letter-spacing:-.3px;
      color: rgba(15,23,42,.88);
      padding: 10px 12px;
      border-radius: 999px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
      font-size: 13.2px;
      max-width: 90%;
      text-overflow: ellipsis;
      white-space: nowrap;
      overflow:hidden;
    }
    .case .body{
      padding: 14px 16px 16px;
    }
    .case h3{
      margin: 0;
      font-size: 15px;
      letter-spacing:-.2px;
    }
    .case p{
      margin: 10px 0 0;
      color: rgba(15,23,42,.72);
      font-size: 13.2px;
      line-height: 1.65;
      min-height: 66px;
    }
    .case .links{
      margin-top: 14px;
      display:flex; align-items:center; gap: 10px; flex-wrap:wrap;
      color: rgba(15,23,42,.76);
      font-size: 12.8px;
    }
    .text-link{
      display:inline-flex; align-items:center; gap: 8px;
      padding: 9px 12px;
      border-radius: 999px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
      transition: transform .15s ease, border-color .2s ease, box-shadow .2s ease;
      cursor:pointer;
    }
    .text-link:hover{
      transform: translateY(-1px);
      border-color: rgba(109,40,217,.28);
      box-shadow: 0 16px 40px rgba(16,24,40,.10);
    }
    .text-link svg{ width: 14px; height:14px; }

    .articles-right{
      display:grid; gap: 12px;
    }
    .tag-cloud{
      border-radius: 22px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.78);
      box-shadow: 0 16px 50px rgba(16,24,40,.08);
      padding: 16px;
    }
    .tag-cloud h2{ margin:0; font-size: 16.5px; letter-spacing:-.2px; }
    .tag-cloud .cloud{
      margin-top: 12px;
      display:flex; gap: 10px; flex-wrap: wrap;
    }
    .cloud .cloud-tag{
      padding: 10px 12px;
      border-radius: 999px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
      font-size: 12.6px;
      color: rgba(15,23,42,.76);
      transition: transform .15s ease, border-color .2s ease, box-shadow .2s ease;
    }
    .cloud .cloud-tag:hover{
      transform: translateY(-2px);
      border-color: rgba(6,182,212,.30);
      box-shadow: 0 16px 40px rgba(16,24,40,.10);
    }

    .network{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      align-items:start;
    }
    .mapbox{
      border-radius: 22px;
      border:1px solid rgba(15,23,42,.10);
      background:
        radial-gradient(900px 260px at 20% 0%, rgba(109,40,217,.18), transparent 55%),
        radial-gradient(700px 240px at 90% 15%, rgba(6,182,212,.14), transparent 52%),
        rgba(255,255,255,.78);
      box-shadow: 0 16px 50px rgba(16,24,40,.08);
      padding: 18px;
      overflow:hidden;
      position:relative;
    }
    .mapbox::before{
      content:"";
      position:absolute; inset:0;
      background:
        linear-gradient(90deg, rgba(15,23,42,.05) 1px, transparent 1px),
        linear-gradient(180deg, rgba(15,23,42,.04) 1px, transparent 1px);
      background-size: 34px 34px;
      opacity:.35;
      pointer-events:none;
    }
    .mapbox h2{ margin:0; font-size: 18px; letter-spacing:-.2px; position:relative; z-index:1; }
    .mapbox p{ margin: 10px 0 0; color: rgba(15,23,42,.72); line-height:1.7; font-size: 13.5px; position:relative; z-index:1; }
    .cities{
      margin-top: 14px;
      display:flex; gap: 10px; flex-wrap: wrap;
      position:relative; z-index:1;
    }
    .city{
      padding: 10px 12px;
      border-radius: 999px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
      font-size: 12.8px; color: rgba(15,23,42,.78);
    }

    .partner{
      border-radius: 22px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.78);
      box-shadow: 0 16px 50px rgba(16,24,40,.08);
      padding: 18px;
      overflow:hidden;
    }
    .partner h2{ margin:0; font-size: 18px; letter-spacing:-.2px; }
    .partner p{ margin: 10px 0 0; color: rgba(15,23,42,.72); line-height:1.7; font-size: 13.5px; }
    .partner .grid{
      margin-top: 14px;
      display:grid; grid-template-columns: 1fr 1fr;
      gap: 12px;
    }
    .partner .tile{
      border-radius: 18px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
      padding: 14px;
      min-height: 120px;
    }
    .partner .tile .t1{
      display:flex; align-items:center; gap: 10px;
      margin-bottom: 8px;
    }
    .partner .tile .badge-ico{
      width: 36px; height:36px; border-radius: 14px;
      border:1px solid rgba(15,23,42,.10);
      background: linear-gradient(135deg, rgba(109,40,217,.18), rgba(6,182,212,.14));
      display:flex; align-items:center; justify-content:center;
    }
    .partner .tile h3{
      margin:0; font-size: 14.7px; letter-spacing:-.2px;
    }
    .partner .tile p{
      margin:0;
      color: rgba(15,23,42,.70);
      font-size: 12.9px;
      line-height:1.6;
    }

    footer{
      background: rgba(255,255,255,.82);
      border-top: 1px solid rgba(15,23,42,.08);
      padding: 26px 0 18px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns: 1.2fr .8fr;
      gap: 16px;
      align-items:start;
    }
    .footer-card{
      border-radius: 22px;
      border:1px solid rgba(15,23,42,.10);
      background:
        radial-gradient(900px 260px at 10% 0%, rgba(109,40,217,.14), transparent 55%),
        radial-gradient(700px 240px at 90% 20%, rgba(6,182,212,.12), transparent 52%),
        rgba(255,255,255,.78);
      box-shadow: 0 16px 50px rgba(16,24,40,.08);
      padding: 18px;
    }
    .footer-card h2{ margin:0; font-size: 16.5px; letter-spacing:-.2px; }
    .footer-card .row{
      margin-top: 12px;
      display:flex; gap: 12px; flex-wrap:wrap; align-items:flex-start;
      color: rgba(15,23,42,.78);
      font-size: 13.3px;
      line-height: 1.6;
    }
    .footer-card .row a{
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.62);
      padding: 10px 12px;
      border-radius: 999px;
      font-size: 12.8px;
      transition: transform .15s ease, border-color .2s ease, box-shadow .2s ease;
    }
    .footer-card .row a:hover{
      transform: translateY(-2px);
      border-color: rgba(109,40,217,.28);
      box-shadow: 0 16px 40px rgba(16,24,40,.10);
    }
    .footer-right{
      display:grid; gap: 14px;
      align-content:start;
    }
    .wechat{
      border-radius: 22px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.78);
      box-shadow: 0 16px 50px rgba(16,24,40,.08);
      padding: 16px;
    }
    .wechat .top{
      display:flex; align-items:center; justify-content:space-between; gap: 12px;
    }
    .wechat h2{ margin:0; font-size: 16.5px; letter-spacing:-.2px; }
    .wechat img{
      width: 110px; height:auto;
      border-radius: 18px;
      border:1px solid rgba(15,23,42,.10);
      background:#fff;
    }
    .wechat p{
      margin: 10px 0 0;
      color: rgba(15,23,42,.72);
      font-size: 13.2px; line-height:1.6;
    }
    .copyright{
      margin-top: 14px;
      color: rgba(15,23,42,.65);
      font-size: 12.6px;
      display:flex; align-items:center; justify-content:space-between; gap: 12px; flex-wrap: wrap;
    }
    .friendships{
      margin-top: 12px;
      display:flex; gap: 10px; flex-wrap: wrap;
    }

    .float-cs{
      position: fixed;
      right: 16px;
      bottom: 16px;
      z-index: 100;
      display:flex; flex-direction:column; gap: 10px;
      align-items:flex-end;
    }
    .fab{
      width: 46px; height:46px;
      border-radius: 18px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.78);
      box-shadow: 0 18px 60px rgba(16,24,40,.14);
      cursor:pointer;
      display:flex; align-items:center; justify-content:center;
      transition: transform .15s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .fab:hover{ transform: translateY(-3px); border-color: rgba(6,182,212,.30); box-shadow: 0 24px 70px rgba(16,24,40,.18); }
    .fab svg{ width: 18px; height:18px; }
    .toast{
      position: fixed;
      left: 50%;
      transform: translateX(-50%);
      bottom: 86px;
      background: rgba(11,18,32,.92);
      color:#fff;
      padding: 10px 12px;
      border-radius: 14px;
      font-size: 13px;
      box-shadow: 0 22px 80px rgba(0,0,0,.25);
      opacity:0;
      pointer-events:none;
      transition: opacity .25s ease, transform .25s ease;
      z-index: 110;
    }
    .toast.show{ opacity:1; transform: translateX(-50%) translateY(-6px); }

    @media (max-width: 980px){
      h1{ font-size: 34px; }
      .hero-grid{ grid-template-columns: 1fr; }
      .card{ grid-column: span 6; }
      .step{ grid-column: span 6; }
      .slim{ grid-column: span 6; }
      .t-item{ grid-column: span 6; }
      .comment{ grid-column: span 6; }
      .case{ grid-column: span 6; }
      .articles{ grid-template-columns: 1fr; }
      .faq{ grid-template-columns: 1fr; }
      .workshop{ grid-template-columns: 1fr; }
      .network{ grid-template-columns: 1fr; }
      .footer-grid{ grid-template-columns: 1fr; }
      .partner .grid{ grid-template-columns: 1fr; }
      .nav-links{ display:none; }
      .burger{ display:flex; }
      .mobile-drawer{ display:block; }
    }
    @media (max-width: 560px){
      h1{ font-size: 28px; }
      .hero-card{ padding: 18px; }
      .metrics{ grid-template-columns: 1fr; }
      .card{ grid-column: span 12; }
      .step{ grid-column: span 12; min-height: 150px; }
      .slim{ grid-column: span 12; }
      .t-item{ grid-column: span 12; }
      .comment{ grid-column: span 12; }
      .case{ grid-column: span 12; }
      .field-grid{ grid-template-columns: 1fr; }
      .article-item{ flex-direction: column; }
      .article-item .arrow{ align-self:flex-end; }
      .float-cs{ right: 12px; bottom: 12px; }
      .friendships{ gap: 8px; }
    }