:root{
      --bg0:#ffffff;
      --bg1:#fbf7f0;
      --bg2:#f5f7fb;
      --ink:#14161c;
      --muted:#4b5563;
      --sub:#6b7280;
      --line:rgba(20,22,28,.10);
      --line2:rgba(20,22,28,.14);
      --card:rgba(255,255,255,.78);
      --card2:rgba(255,255,255,.92);
      --shadow:0 18px 40px rgba(10,20,30,.10);
      --shadow2:0 10px 24px rgba(10,20,30,.10);
      --brand:#0b63ff;
      --brand2:#6d28d9;
      --accent:#ff4d6d;
      --ok:#16a34a;
      --warn:#f59e0b;
      --radius:18px;
      --radius2:26px;
      --container:1120px;
      --gap:16px;
      --focus:0 0 0 4px rgba(11,99,255,.18);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC","Hiragino Sans GB","Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
      color:var(--ink);
      background:
        radial-gradient(900px 500px at 15% -5%, rgba(11,99,255,.12), transparent 60%),
        radial-gradient(800px 480px at 85% 0%, rgba(109,40,217,.12), transparent 55%),
        radial-gradient(720px 420px at 65% 25%, rgba(255,77,109,.10), transparent 55%),
        linear-gradient(180deg, var(--bg0) 0%, var(--bg1) 60%, var(--bg2) 100%);
      min-height:100vh;
    }
    a{color:inherit; text-decoration:none}
    .container{
      width:100%;
      max-width:var(--container);
      margin:0 auto;
      padding:0 18px;
    }
    header{
      position:sticky; top:0; z-index:50;
      backdrop-filter:saturate(180%) blur(10px);
      background:rgba(255,255,255,.72);
      border-bottom:1px solid rgba(20,22,28,.08);
    }
    .nav-wrap{
      display:flex; align-items:center; justify-content:space-between; gap:14px;
      padding:10px 0;
    }
    .brand{
      display:flex; align-items:center; gap:10px; min-width:210px;
    }
    .ai-page-logo{
      width:34px; height:auto; display:block;
      border-radius:10px;
      box-shadow:0 10px 26px rgba(11,99,255,.18);
    }
    .brand-title{
      display:flex; flex-direction:column; line-height:1.1;
    }
    .brand-title strong{font-size:14px; letter-spacing:.2px}
    .brand-title span{font-size:12px; color:var(--sub)}
    nav{
      display:flex; align-items:center; gap:10px; flex:1;
      justify-content:flex-end;
    }
    .nav-links{
      display:flex; align-items:center; gap:6px; flex-wrap:wrap; justify-content:flex-end;
    }
    .nav-links a{
      font-size:13px; color:rgba(20,22,28,.85);
      padding:9px 10px; border-radius:999px;
      border:1px solid transparent;
      transition: transform .15s ease, background .15s ease, border-color .15s ease;
      white-space:nowrap;
    }
    .nav-links a:hover{
      background:rgba(11,99,255,.08);
      border-color:rgba(11,99,255,.18);
      transform:translateY(-1px);
    }
    .nav-cta{
      display:flex; align-items:center; gap:10px;
    }
    .btn{
      display:inline-flex; align-items:center; justify-content:center;
      gap:10px;
      padding:11px 14px;
      border-radius:999px;
      border:1px solid rgba(20,22,28,.10);
      background:rgba(255,255,255,.85);
      color:rgba(20,22,28,.92);
      font-weight:650;
      font-size:13px;
      transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease, background .15s ease;
      cursor:pointer;
      user-select:none;
    }
    .btn:focus{outline:none; box-shadow:var(--focus)}
    .btn:hover{transform:translateY(-1px); box-shadow:0 14px 26px rgba(10,20,30,.12); border-color:rgba(20,22,28,.18)}
    .btn.primary{
      border-color:rgba(11,99,255,.34);
      background:linear-gradient(135deg, rgba(11,99,255,.95) 0%, rgba(109,40,217,.90) 100%);
      color:#fff;
      box-shadow:0 14px 28px rgba(11,99,255,.20);
    }
    .btn.primary:hover{box-shadow:0 18px 40px rgba(11,99,255,.26); border-color:rgba(255,255,255,.18)}
    .btn.ghost{
      background:rgba(255,255,255,.65);
    }
    .icon{
      width:18px; height:18px; display:inline-block;
    }
    .hamburger{
      display:none;
      width:44px; height:44px; border-radius:12px;
      border:1px solid rgba(20,22,28,.10);
      background:rgba(255,255,255,.8);
      cursor:pointer;
      transition: transform .15s ease, box-shadow .15s ease;
    }
    .hamburger:hover{transform:translateY(-1px); box-shadow:0 14px 26px rgba(10,20,30,.12)}
    .hamburger:focus{outline:none; box-shadow:var(--focus)}
    .hamburger .bar{
      display:block; width:18px; height:2px; background:rgba(20,22,28,.85);
      margin:5px auto; border-radius:2px;
    }
    .mobile-drawer{
      display:none;
      padding:12px 0 16px;
    }
    .mobile-drawer .drawer-links{
      display:flex; flex-direction:column; gap:8px;
      padding-top:10px;
    }
    .mobile-drawer a{
      border:1px solid rgba(20,22,28,.10);
      background:rgba(255,255,255,.78);
      border-radius:14px;
      padding:12px 12px;
      font-weight:650;
      font-size:13px;
    }
    .mobile-drawer .row{display:flex; gap:10px; margin-top:12px}
    .hero{
      padding:26px 0 10px;
    }
    .hero-grid{
      display:grid; grid-template-columns: 1.15fr .85fr; gap:18px; align-items:stretch;
    }
    .hero-card{
      border-radius:var(--radius2);
      background:
        linear-gradient(135deg, rgba(255,255,255,.84) 0%, rgba(255,255,255,.62) 55%, rgba(255,255,255,.78) 100%);
      border:1px solid rgba(20,22,28,.10);
      box-shadow:var(--shadow);
      overflow:hidden;
      position:relative;
      padding:22px 22px 18px;
    }
    .hero-card:before{
      content:"";
      position:absolute; inset:-120px -120px auto auto;
      width:360px; height:360px;
      background: radial-gradient(circle at 30% 30%, rgba(11,99,255,.35), transparent 60%),
                  radial-gradient(circle at 70% 40%, rgba(109,40,217,.28), transparent 60%),
                  radial-gradient(circle at 50% 70%, rgba(255,77,109,.22), transparent 60%);
      filter: blur(2px);
      pointer-events:none;
      transform: rotate(18deg);
    }
    .hero-card:after{
      content:"";
      position:absolute; left:-140px; top:-160px;
      width:300px; height:300px;
      background: radial-gradient(circle at 50% 50%, rgba(11,99,255,.18), transparent 64%);
      pointer-events:none;
      transform: rotate(-10deg);
    }
    .kicker{
      display:flex; align-items:center; gap:10px; flex-wrap:wrap;
      position:relative; z-index:1;
    }
    .chip{
      display:inline-flex; align-items:center; gap:8px;
      padding:8px 10px;
      border-radius:999px;
      background:rgba(11,99,255,.08);
      border:1px solid rgba(11,99,255,.18);
      color:rgba(11,99,255,.95);
      font-weight:700;
      font-size:12px;
      letter-spacing:.2px;
    }
    .chip .dot{
      width:9px; height:9px; border-radius:50%;
      background:linear-gradient(135deg, var(--brand), var(--brand2));
      box-shadow:0 10px 22px rgba(11,99,255,.25);
    }
    .pulse{
      width:10px; height:10px; border-radius:50%;
      background:rgba(255,77,109,.95);
      box-shadow:0 0 0 0 rgba(255,77,109,.35);
      animation:pulse 1.8s infinite;
    }
    @keyframes pulse{
      0%{box-shadow:0 0 0 0 rgba(255,77,109,.35)}
      60%{box-shadow:0 0 0 10px rgba(255,77,109,0)}
      100%{box-shadow:0 0 0 0 rgba(255,77,109,0)}
    }
    h1{
      margin:14px 0 10px;
      font-size:34px;
      letter-spacing:-.6px;
      line-height:1.16;
      position:relative; z-index:1;
    }
    .hero-sub{
      margin:0;
      color:rgba(20,22,28,.78);
      font-size:14px;
      line-height:1.75;
      max-width:62ch;
      position:relative; z-index:1;
    }
    .hero-actions{
      display:flex; align-items:center; gap:10px; flex-wrap:wrap;
      margin-top:16px;
      position:relative; z-index:1;
    }
    .hero-actions .mini{
      display:flex; align-items:center; gap:10px; padding:10px 12px;
      border-radius:16px; border:1px dashed rgba(20,22,28,.18);
      background:rgba(255,255,255,.55);
    }
    .mini .stat{
      display:flex; flex-direction:column; line-height:1.1;
    }
    .mini .stat b{font-size:14px}
    .mini .stat span{font-size:12px; color:var(--sub)}
    .hero-right{
      display:grid; gap:14px;
      align-content:start;
    }
    .data-grid{
      display:grid; grid-template-columns: 1fr 1fr; gap:12px;
    }
    .data-card{
      border-radius:18px;
      border:1px solid rgba(20,22,28,.10);
      background:rgba(255,255,255,.78);
      padding:14px 14px 12px;
      box-shadow:0 10px 22px rgba(10,20,30,.06);
      transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
      position:relative;
      overflow:hidden;
    }
    .data-card:hover{
      transform:translateY(-2px);
      box-shadow:0 18px 36px rgba(10,20,30,.12);
      border-color:rgba(11,99,255,.18);
    }
    .data-card:before{
      content:"";
      position:absolute; inset:auto -40px -60px auto;
      width:120px; height:120px;
      background: radial-gradient(circle at 30% 30%, rgba(11,99,255,.22), transparent 60%);
      pointer-events:none;
      transform: rotate(20deg);
    }
    .data-card .num{
      font-size:18px; font-weight:900; letter-spacing:-.3px;
    }
    .data-card .lbl{
      margin-top:6px;
      font-size:12px; color:var(--sub); line-height:1.5;
      position:relative;
      z-index:1;
    }
    .guide-card{
      border-radius:var(--radius2);
      border:1px solid rgba(20,22,28,.10);
      background:
        linear-gradient(180deg, rgba(255,255,255,.75), rgba(255,255,255,.60));
      box-shadow:var(--shadow2);
      padding:14px;
      overflow:hidden;
      position:relative;
    }
    .guide-card:before{
      content:"";
      position:absolute; inset:-120px auto auto -120px;
      width:260px; height:260px;
      background: radial-gradient(circle at 50% 50%, rgba(109,40,217,.18), transparent 62%);
      pointer-events:none;
    }
    .guide-head{
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
      position:relative; z-index:1;
    }
    .guide-head h2{
      margin:0;
      font-size:14px;
      letter-spacing:.2px;
    }
    .tag{
      font-size:12px;
      padding:8px 10px;
      border-radius:999px;
      background:rgba(255,77,109,.10);
      border:1px solid rgba(255,77,109,.18);
      color:rgba(190,18,60,.96);
      font-weight:800;
      white-space:nowrap;
    }
    .steps-mini{
      margin-top:12px;
      display:flex; flex-direction:column; gap:10px;
      position:relative; z-index:1;
    }
    .step-line{
      display:flex; gap:10px; align-items:flex-start;
    }
    .badge{
      width:28px; height:28px;
      border-radius:10px;
      border:1px solid rgba(11,99,255,.20);
      background:rgba(11,99,255,.08);
      display:flex; align-items:center; justify-content:center;
      font-weight:900; font-size:13px; color:rgba(11,99,255,.95);
      flex:0 0 auto;
      box-shadow:0 12px 28px rgba(11,99,255,.12);
    }
    .step-line b{font-size:13px}
    .step-line span{display:block; margin-top:3px; font-size:12px; color:var(--sub); line-height:1.55}
    .section{
      padding:26px 0;
    }
    .section-head{
      display:flex; align-items:flex-end; justify-content:space-between; gap:14px; flex-wrap:wrap;
      margin-bottom:14px;
    }
    .section-title{
      display:flex; flex-direction:column; gap:6px;
    }
    .section-title h2{
      margin:0;
      font-size:22px;
      letter-spacing:-.3px;
    }
    .section-title p{
      margin:0;
      color:var(--muted);
      font-size:13.5px;
      line-height:1.7;
      max-width:70ch;
    }
    .divider{
      height:1px; width:100%;
      background:linear-gradient(90deg, rgba(20,22,28,.00), rgba(20,22,28,.14), rgba(20,22,28,.00));
      margin:10px 0 0;
    }
    .grid-3{
      display:grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap:14px;
    }
    .grid-4{
      display:grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap:14px;
    }
    .card{
      border:1px solid rgba(20,22,28,.10);
      border-radius:var(--radius);
      background:rgba(255,255,255,.78);
      box-shadow:0 10px 22px rgba(10,20,30,.06);
      padding:16px;
      transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
    }
    .card:hover{
      transform:translateY(-2px);
      box-shadow:0 18px 36px rgba(10,20,30,.12);
      border-color:rgba(11,99,255,.18);
    }
    .card h3{margin:10px 0 6px; font-size:15px; letter-spacing:-.2px}
    .card p{margin:0; color:var(--muted); font-size:13.2px; line-height:1.7}
    .card .icon-wrap{
      width:42px; height:42px; border-radius:16px;
      background:linear-gradient(135deg, rgba(11,99,255,.12), rgba(109,40,217,.10));
      border:1px solid rgba(11,99,255,.18);
      display:flex; align-items:center; justify-content:center;
      box-shadow:0 18px 44px rgba(11,99,255,.12);
    }
    .card .icon-wrap svg{width:20px; height:20px; color:rgba(11,99,255,.95)}
    .list{
      margin:0; padding-left:18px;
      color:var(--muted); font-size:13.2px; line-height:1.8;
    }
    .pill-row{display:flex; flex-wrap:wrap; gap:10px; margin-top:10px}
    .pill{
      padding:9px 10px;
      border-radius:999px;
      background:rgba(11,99,255,.08);
      border:1px solid rgba(11,99,255,.16);
      color:rgba(11,99,255,.95);
      font-size:12px;
      font-weight:750;
      white-space:nowrap;
    }
    .pill.alt{
      background:rgba(109,40,217,.08);
      border-color:rgba(109,40,217,.18);
      color:rgba(109,40,217,.96);
    }
    .pill.hot{
      background:rgba(255,77,109,.09);
      border-color:rgba(255,77,109,.18);
      color:rgba(190,18,60,.96);
    }
    .workflow{
      display:grid; grid-template-columns: 1.05fr .95fr; gap:14px; align-items:start;
    }
    .timeline{
      position:relative;
      padding:6px 0 0 0;
    }
    .timeline:before{
      content:"";
      position:absolute;
      left:18px; top:8px; bottom:8px;
      width:2px;
      background:linear-gradient(180deg, rgba(11,99,255,.35), rgba(109,40,217,.25), rgba(255,77,109,.22));
      border-radius:2px;
    }
    .t-item{
      display:flex; gap:12px; align-items:flex-start;
      padding:10px 0 10px 0;
      position:relative;
    }
    .t-item .t-dot{
      width:38px; height:38px; border-radius:16px;
      background:rgba(255,255,255,.78);
      border:1px solid rgba(20,22,28,.10);
      display:flex; align-items:center; justify-content:center;
      box-shadow:0 14px 30px rgba(10,20,30,.08);
      flex:0 0 auto;
      margin-top:2px;
    }
    .t-item .t-dot b{
      width:22px; height:22px; border-radius:10px;
      display:flex; align-items:center; justify-content:center;
      background:linear-gradient(135deg, rgba(11,99,255,.95), rgba(109,40,217,.85));
      color:#fff; font-size:12px;
    }
    .t-item h3{margin:0; font-size:14.5px}
    .t-item p{margin:4px 0 0; color:var(--muted); font-size:13px; line-height:1.7}
    .comparison-wrap{
      border:1px solid rgba(20,22,28,.10);
      background:rgba(255,255,255,.72);
      border-radius:var(--radius2);
      overflow:hidden;
      box-shadow:0 12px 26px rgba(10,20,30,.06);
    }
    .comparison-head{
      display:flex; align-items:flex-start; justify-content:space-between; gap:14px; padding:16px 16px 12px;
      background:linear-gradient(180deg, rgba(255,255,255,.86), rgba(255,255,255,.72));
      border-bottom:1px solid rgba(20,22,28,.08);
    }
    .comparison-head h3{margin:0; font-size:16px}
    .comparison-head p{margin:6px 0 0; color:var(--muted); font-size:13px; line-height:1.7}
    .star-score{
      display:flex; flex-direction:column; align-items:flex-end; gap:8px;
      min-width:190px;
    }
    .stars{
      display:flex; gap:4px; align-items:center;
      color:rgba(245,158,11,1);
      font-weight:900;
    }
    .score{
      font-size:12px; color:var(--sub);
      background:rgba(245,158,11,.10);
      border:1px solid rgba(245,158,11,.18);
      padding:8px 10px; border-radius:999px;
      font-weight:800;
      white-space:nowrap;
    }
    table{
      width:100%;
      border-collapse:collapse;
      font-size:13px;
      color:rgba(20,22,28,.88);
    }
    thead th{
      text-align:left;
      padding:12px 14px;
      background:rgba(20,22,28,.03);
      border-bottom:1px solid rgba(20,22,28,.08);
      font-weight:900;
      white-space:nowrap;
    }
    tbody td{
      padding:12px 14px;
      border-bottom:1px solid rgba(20,22,28,.06);
      vertical-align:top;
    }
    tbody tr:last-child td{border-bottom:none}
    .chip-ok,.chip-warn,.chip-neutral{
      display:inline-flex; align-items:center; gap:8px;
      padding:7px 10px; border-radius:999px; font-weight:900; font-size:12px; white-space:nowrap;
    }
    .chip-ok{
      color:rgba(22,163,74,.98);
      background:rgba(22,163,74,.10);
      border:1px solid rgba(22,163,74,.18);
    }
    .chip-warn{
      color:rgba(245,158,11,.98);
      background:rgba(245,158,11,.12);
      border:1px solid rgba(245,158,11,.20);
    }
    .chip-neutral{
      color:rgba(75,85,99,.98);
      background:rgba(75,85,99,.08);
      border:1px solid rgba(75,85,99,.16);
    }
    .h-scroll{
      overflow:auto;
      -webkit-overflow-scrolling:touch;
    }
    .h-scroll::-webkit-scrollbar{height:10px}
    .h-scroll::-webkit-scrollbar-thumb{background:rgba(20,22,28,.18); border-radius:20px}
    .h-scroll::-webkit-scrollbar-track{background:rgba(20,22,28,.06)}
    .steps-grid{
      display:grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap:14px;
    }
    .mini-card{
      border-radius:18px;
      border:1px solid rgba(20,22,28,.10);
      background:rgba(255,255,255,.76);
      padding:14px;
      box-shadow:0 10px 22px rgba(10,20,30,.06);
      position:relative;
      overflow:hidden;
    }
    .mini-card:before{
      content:"";
      position:absolute; inset:-80px -80px auto auto;
      width:180px; height:180px;
      background: radial-gradient(circle at 30% 30%, rgba(11,99,255,.22), transparent 62%);
      pointer-events:none;
    }
    .mini-card .n{
      width:32px; height:32px; border-radius:12px;
      display:flex; align-items:center; justify-content:center;
      background:rgba(11,99,255,.08);
      border:1px solid rgba(11,99,255,.18);
      font-weight:950; color:rgba(11,99,255,.95);
      position:relative; z-index:1;
    }
    .mini-card h3{margin:10px 0 6px; font-size:14.5px; position:relative; z-index:1}
    .mini-card p{margin:0; color:var(--muted); font-size:13px; line-height:1.7; position:relative; z-index:1}
    .two-col{
      display:grid; grid-template-columns: 1fr 1fr; gap:14px;
    }
    .feature-list{
      display:flex; flex-direction:column; gap:10px;
      margin-top:6px;
    }
    .feature{
      display:flex; align-items:flex-start; gap:10px;
      padding:12px 12px;
      border-radius:16px;
      border:1px solid rgba(20,22,28,.10);
      background:rgba(255,255,255,.70);
    }
    .feature i{
      width:26px; height:26px; border-radius:10px;
      display:flex; align-items:center; justify-content:center;
      background:rgba(11,99,255,.10);
      border:1px solid rgba(11,99,255,.16);
      font-style:normal;
      color:rgba(11,99,255,.95);
      flex:0 0 auto;
      margin-top:1px;
      font-weight:950;
    }
    .feature b{font-size:13.5px}
    .feature span{display:block; margin-top:3px; color:var(--muted); font-size:13px; line-height:1.65}
    .accordion{
      display:flex; flex-direction:column; gap:10px;
    }
    details{
      border-radius:18px;
      border:1px solid rgba(20,22,28,.10);
      background:rgba(255,255,255,.78);
      box-shadow:0 10px 22px rgba(10,20,30,.05);
      overflow:hidden;
    }
    summary{
      list-style:none;
      cursor:pointer;
      padding:14px 14px;
      display:flex; align-items:center; justify-content:space-between; gap:12px;
      font-weight:900;
      font-size:14px;
    }
    summary::-webkit-details-marker{display:none}
    .sum-right{
      display:flex; align-items:center; gap:10px;
      color:var(--sub);
      font-weight:900;
    }
    .chev{
      width:36px; height:36px;
      border-radius:14px;
      border:1px solid rgba(20,22,28,.10);
      background:rgba(255,255,255,.72);
      display:flex; align-items:center; justify-content:center;
      transition: transform .18s ease;
      flex:0 0 auto;
    }
    details[open] .chev{transform:rotate(180deg)}
    details .content{
      padding:0 14px 14px;
      color:var(--muted);
      font-size:13.2px;
      line-height:1.8;
    }
    .comments-grid{
      display:grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap:14px;
    }
    .comment{
      padding:16px;
      border-radius:var(--radius);
      border:1px solid rgba(20,22,28,.10);
      background:rgba(255,255,255,.78);
      box-shadow:0 10px 22px rgba(10,20,30,.06);
      display:flex; flex-direction:column; gap:10px;
      transition: transform .15s ease, box-shadow .15s ease;
      position:relative; overflow:hidden;
    }
    .comment:before{
      content:"";
      position:absolute; inset:auto -50px -70px auto;
      width:160px; height:160px;
      background: radial-gradient(circle at 30% 30%, rgba(109,40,217,.18), transparent 60%);
      pointer-events:none;
    }
    .comment:hover{transform:translateY(-2px); box-shadow:0 18px 36px rgba(10,20,30,.12)}
    .person{
      display:flex; align-items:center; gap:12px; position:relative; z-index:1;
    }
    .avatar{
      width:44px; height:44px; border-radius:18px;
      border:1px solid rgba(20,22,28,.10);
      background:linear-gradient(135deg, rgba(11,99,255,.14), rgba(255,77,109,.10));
      display:flex; align-items:center; justify-content:center;
      font-weight:1000;
      color:rgba(20,22,28,.84);
    }
    .person b{font-size:14px}
    .person span{display:block; margin-top:3px; color:var(--sub); font-size:12.5px}
    .quote{
      margin:0;
      color:var(--muted);
      font-size:13.2px;
      line-height:1.8;
      position:relative; z-index:1;
    }
    .quote strong{color:rgba(20,22,28,.88)}
    .cases-grid{
      display:grid; grid-template-columns: 1fr 1fr; gap:14px;
    }
    .case-card{
      border-radius:var(--radius2);
      border:1px solid rgba(20,22,28,.10);
      background:rgba(255,255,255,.78);
      box-shadow:0 12px 26px rgba(10,20,30,.06);
      overflow:hidden;
      display:grid;
      grid-template-columns: 180px 1fr;
      min-height:150px;
    }
    .case-media{
      background:linear-gradient(135deg, rgba(11,99,255,.14), rgba(109,40,217,.10), rgba(255,77,109,.08));
      border-right:1px solid rgba(20,22,28,.08);
      display:flex; align-items:center; justify-content:center;
      padding:14px;
      position:relative;
    }
    .case-media:before{
      content:"";
      position:absolute; inset:16px auto auto 16px;
      width:14px; height:14px; border-radius:6px;
      background:rgba(11,99,255,.35);
      box-shadow:0 18px 44px rgba(11,99,255,.18);
    }
    .case-media .code{
      width:100%;
      height:100%;
      border-radius:18px;
      border:1px dashed rgba(20,22,28,.16);
      background:rgba(255,255,255,.40);
      display:flex; flex-direction:column; align-items:flex-start; justify-content:center;
      padding:12px;
      gap:8px;
    }
    .case-media .code .line{
      height:10px;
      width:86%;
      border-radius:999px;
      background:rgba(20,22,28,.10);
    }
    .case-media .code .line:nth-child(2){width:62%}
    .case-media .code .line:nth-child(3){width:74%}
    .case-body{
      padding:14px 14px;
      display:flex; flex-direction:column; gap:10px;
    }
    .case-body h3{margin:0; font-size:15px}
    .case-body p{margin:0; color:var(--muted); font-size:13.2px; line-height:1.7}
    .case-actions{
      display:flex; gap:10px; flex-wrap:wrap; margin-top:auto;
    }
    .mini-link{
      display:inline-flex; align-items:center; gap:8px;
      padding:10px 12px;
      border-radius:999px;
      border:1px solid rgba(20,22,28,.10);
      background:rgba(255,255,255,.70);
      font-weight:850; font-size:13px;
      transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
    }
    .mini-link:hover{
      transform:translateY(-1px);
      box-shadow:0 14px 26px rgba(10,20,30,.12);
      border-color:rgba(11,99,255,.18);
    }
    .small{
      font-size:12px; color:var(--sub); line-height:1.6;
    }
    .blog-grid{
      display:grid; grid-template-columns: 1fr 1fr; gap:14px;
    }
    .blog-card{
      padding:16px;
      border-radius:var(--radius);
      border:1px solid rgba(20,22,28,.10);
      background:rgba(255,255,255,.78);
      box-shadow:0 10px 22px rgba(10,20,30,.06);
      transition: transform .15s ease, box-shadow .15s ease;
      display:flex; flex-direction:column; gap:10px;
      min-height:150px;
    }
    .blog-card:hover{transform:translateY(-2px); box-shadow:0 18px 36px rgba(10,20,30,.12)}
    .blog-top{
      display:flex; align-items:center; justify-content:space-between; gap:10px;
    }
    .badge-soft{
      font-size:12px; font-weight:900;
      padding:8px 10px; border-radius:999px;
      background:rgba(109,40,217,.08);
      border:1px solid rgba(109,40,217,.18);
      color:rgba(109,40,217,.96);
      white-space:nowrap;
    }
    .blog-card a.title{
      font-size:15px; font-weight:950; letter-spacing:-.2px; line-height:1.4;
    }
    .blog-meta{color:var(--sub); font-size:12.5px}
    .form-card{
      border-radius:var(--radius2);
      border:1px solid rgba(20,22,28,.10);
      background:rgba(255,255,255,.78);
      box-shadow:0 12px 26px rgba(10,20,30,.06);
      overflow:hidden;
    }
    .form-head{
      padding:16px 16px 12px;
      background:linear-gradient(180deg, rgba(255,255,255,.86), rgba(255,255,255,.70));
      border-bottom:1px solid rgba(20,22,28,.08);
      display:flex; align-items:flex-start; justify-content:space-between; gap:14px; flex-wrap:wrap;
    }
    .form-head h3{margin:0; font-size:16px}
    .form-head p{margin:6px 0 0; color:var(--muted); font-size:13px; line-height:1.7; max-width:70ch}
    form{
      padding:16px;
      display:grid; grid-template-columns: 1fr 1fr; gap:12px;
    }
    .field{display:flex; flex-direction:column; gap:8px}
    label{font-size:12.5px; color:rgba(20,22,28,.78); font-weight:900}
    input, select, textarea{
      width:100%;
      border:1px solid rgba(20,22,28,.14);
      background:rgba(255,255,255,.92);
      border-radius:14px;
      padding:12px 12px;
      font-size:13.5px;
      color:rgba(20,22,28,.92);
      transition: box-shadow .15s ease, border-color .15s ease, transform .08s ease;
    }
    textarea{min-height:108px; resize:vertical}
    input:focus, select:focus, textarea:focus{outline:none; box-shadow:var(--focus); border-color:rgba(11,99,255,.30)}
    .span-2{grid-column:1 / -1}
    .form-actions{
      display:flex; align-items:center; justify-content:space-between; gap:10px; flex-wrap:wrap;
      grid-column:1 / -1;
      margin-top:2px;
      padding-top:4px;
    }
    .help{
      font-size:12.5px; color:var(--sub); line-height:1.6;
    }
    .toast{
      position:fixed; left:50%; bottom:18px; transform:translateX(-50%);
      background:rgba(20,22,28,.92);
      color:#fff;
      padding:12px 14px;
      border-radius:14px;
      box-shadow:0 20px 50px rgba(0,0,0,.25);
      z-index:80;
      opacity:0; pointer-events:none;
      transition: opacity .2s ease, transform .2s ease;
      max-width:92vw;
      font-size:13px;
      line-height:1.5;
    }
    .toast.show{opacity:1; pointer-events:auto; transform:translateX(-50%) translateY(-4px)}
    .floating-chat{
      position:fixed; right:14px; bottom:14px; z-index:60;
      display:flex; flex-direction:column; align-items:flex-end; gap:10px;
    }
    .chat-btn{
      display:flex; align-items:center; gap:10px;
      padding:12px 14px;
      border-radius:999px;
      background:linear-gradient(135deg, rgba(11,99,255,.95), rgba(109,40,217,.90));
      border:1px solid rgba(255,255,255,.18);
      color:#fff;
      box-shadow:0 20px 44px rgba(11,99,255,.26);
      cursor:pointer;
      font-weight:950;
      font-size:13px;
      transition: transform .15s ease, box-shadow .15s ease;
    }
    .chat-btn:hover{transform:translateY(-2px); box-shadow:0 26px 60px rgba(11,99,255,.32)}
    .chat-panel{
      width:300px;
      border-radius:22px;
      background:rgba(255,255,255,.86);
      border:1px solid rgba(20,22,28,.10);
      box-shadow:0 24px 70px rgba(0,0,0,.18);
      overflow:hidden;
      transform-origin: right bottom;
      transform: scale(.98);
      opacity:0;
      pointer-events:none;
      transition: opacity .18s ease, transform .18s ease;
    }
    .chat-panel.open{opacity:1; transform:scale(1); pointer-events:auto}
    .chat-top{
      padding:12px 14px;
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      border-bottom:1px solid rgba(20,22,28,.08);
      background:linear-gradient(180deg, rgba(255,255,255,.90), rgba(255,255,255,.78));
    }
    .chat-top b{font-size:13.5px}
    .chat-top button{
      width:36px; height:36px;
      border-radius:14px;
      border:1px solid rgba(20,22,28,.10);
      background:rgba(255,255,255,.78);
      cursor:pointer;
      display:flex; align-items:center; justify-content:center;
      transition: transform .15s ease, box-shadow .15s ease;
    }
    .chat-top button:hover{transform:translateY(-1px); box-shadow:0 14px 26px rgba(10,20,30,.12)}
    .chat-body{
      padding:14px;
      display:flex; gap:12px; align-items:flex-start;
    }
    .wechat-qr{
      width:94px; height:94px; border-radius:18px;
      border:1px solid rgba(20,22,28,.12);
      background:rgba(255,255,255,.9);
      padding:6px;
      box-shadow:0 14px 40px rgba(10,20,30,.10);
    }
    .chat-body p{margin:0; color:var(--muted); font-size:12.8px; line-height:1.7}
    .chat-actions{
      padding:0 14px 14px;
      display:flex; gap:10px; flex-wrap:wrap;
    }
    .footer{
      padding:26px 0 34px;
      border-top:1px solid rgba(20,22,28,.08);
      background:linear-gradient(180deg, rgba(255,255,255,.55), rgba(255,255,255,.35));
    }
    .footer-grid{
      display:grid; grid-template-columns: 1.2fr .8fr; gap:14px; align-items:start;
    }
    .footer .box{
      border:1px solid rgba(20,22,28,.10);
      background:rgba(255,255,255,.70);
      border-radius:var(--radius2);
      padding:16px;
      box-shadow:0 10px 22px rgba(10,20,30,.05);
    }
    .footer h3{margin:0; font-size:15.5px}
    .footer p{margin:8px 0 0; color:var(--muted); font-size:13px; line-height:1.75}
    .footer-links{
      display:flex; flex-wrap:wrap; gap:10px;
      margin-top:12px;
    }
    .footer-links a{
      padding:9px 10px;
      border-radius:999px;
      border:1px solid rgba(20,22,28,.10);
      background:rgba(255,255,255,.75);
      font-weight:850;
      font-size:12.5px;
      transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
      white-space:nowrap;
    }
    .footer-links a:hover{
      transform:translateY(-1px);
      box-shadow:0 14px 26px rgba(10,20,30,.12);
      border-color:rgba(11,99,255,.18);
    }
    .copyright{
      margin-top:12px;
      display:flex; align-items:center; justify-content:space-between; gap:12px; flex-wrap:wrap;
      color:var(--sub); font-size:12.5px;
    }
    .backtop{
      width:44px; height:44px; border-radius:16px;
      border:1px solid rgba(20,22,28,.10);
      background:rgba(255,255,255,.78);
      display:flex; align-items:center; justify-content:center;
      cursor:pointer;
      transition: transform .15s ease, box-shadow .15s ease;
    }
    .backtop:hover{transform:translateY(-2px); box-shadow:0 16px 32px rgba(10,20,30,.12)}
    .reveal{
      opacity:0; transform: translateY(10px);
      transition: opacity .45s ease, transform .45s ease;
    }
    .reveal.show{opacity:1; transform: translateY(0)}
    .anchor-pad{scroll-margin-top:86px}
    @media (max-width: 980px){
      .hero-grid{grid-template-columns: 1fr; }
      .hero-right{grid-template-columns: 1fr; }
      .data-grid{grid-template-columns: repeat(2, minmax(0,1fr))}
      h1{font-size:30px}
      .grid-3{grid-template-columns: 1fr 1fr}
      .grid-4{grid-template-columns: 1fr 1fr}
      .workflow{grid-template-columns: 1fr}
      .steps-grid{grid-template-columns: 1fr 1fr}
      .two-col{grid-template-columns: 1fr}
      .comments-grid{grid-template-columns: 1fr}
      .cases-grid{grid-template-columns: 1fr}
      .case-card{grid-template-columns: 150px 1fr}
      .blog-grid{grid-template-columns: 1fr}
      .footer-grid{grid-template-columns: 1fr}
      .nav-links{display:none}
      .hamburger{display:block}
      .mobile-drawer{display:block}
      header{position:sticky}
    }
    @media (prefers-reduced-motion: reduce){
      html{scroll-behavior:auto}
      .reveal{transition:none}
      .pulse{animation:none}
    }