:root{
      --bg: #fbf7ff;
      --bg2:#fff;
      --text:#1f2430;
      --muted:#5c6477;
      --muted2:#7a849a;
      --line: rgba(26, 30, 40, .10);
      --shadow: 0 14px 40px rgba(18, 24, 40, .10);
      --shadow2: 0 10px 28px rgba(18, 24, 40, .10);
      --radius-xl: 22px;
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 10px;

      --primary:#6c3cff;      /* 缤纷糖果亮色风 · 主色 */
      --primary2:#ff3da6;     /* 糖果粉 */
      --primary3:#2bd6ff;     /* 冰蓝 */
      --good:#0ea5e9;
      --warn:#f97316;

      --container: 1120px;
      --padX: 18px;
      --navH: 70px;
    }

    *{box-sizing:border-box}
    html,body{height:100%}
    body{
      margin:0;
      font-family: ui-sans-serif, system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
      color:var(--text);
      background: linear-gradient(180deg, #fbf7ff 0%, #ffffff 45%, #fbf7ff 100%);
      overflow-x:hidden;
    }

    .bg{
      position:fixed; inset:0; z-index:-2; pointer-events:none;
      background: radial-gradient(900px 420px at 20% -10%, rgba(108,60,255,.18), transparent 60%),
                  radial-gradient(760px 360px at 75% 10%, rgba(255,61,166,.12), transparent 58%),
                  radial-gradient(900px 420px at 60% 75%, rgba(43,214,255,.10), transparent 60%);
      filter:saturate(1.05);
    }
    .bg-grid{
      position:absolute; inset:-10%;
      background-image:
        linear-gradient(to right, rgba(20,30,60,.05) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(20,30,60,.04) 1px, transparent 1px);
      background-size: 56px 56px;
      transform: rotate(-2deg);
      opacity:.45;
      mask-image: radial-gradient(closest-side at 50% 20%, rgba(0,0,0,1), rgba(0,0,0,.35));
    }
    .bg-orb{
      position:absolute; border-radius:999px; filter: blur(26px);
      opacity:.75;
      animation: floaty 10s ease-in-out infinite;
    }
    .orb1{width:240px; height:240px; left:-60px; top:120px; background: rgba(108,60,255,.35)}
    .orb2{width:260px; height:260px; right:-70px; top:160px; background: rgba(255,61,166,.22); animation-duration: 12s}
    .orb3{width:220px; height:220px; left:48%; top:72%; transform: translateX(-50%); background: rgba(43,214,255,.18); animation-duration: 14s}
    @keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-14px)}}

    .skip-link{
      position:absolute; left:12px; top:12px;
      background:#0f172a; color:#fff;
      padding:10px 12px; border-radius:10px;
      transform: translateY(-140%);
      transition: transform .2s ease;
      z-index:50;
      text-decoration:none;
      font-weight:700;
    }
    .skip-link:focus{transform: translateY(0)}

    .container{
      width: min(var(--container), calc(100% - var(--padX)*2));
      margin: 0 auto;
    }

    .site-header{
      position: sticky; top: 0;
      z-index: 30;
      backdrop-filter: blur(10px);
      background: rgba(255,255,255,.72);
      border-bottom: 1px solid rgba(20,30,60,.08);
    }
    .nav-wrap{
      display:flex; align-items:center; justify-content:space-between;
      height: var(--navH);
      gap: 14px;
      padding: 0;
    }
    .brand-link{display:flex; align-items:center; gap:10px; text-decoration:none}
    .ai-page-logo{width:150px}
    .nav{display:flex; align-items:center; gap:10px; flex: 1; justify-content:flex-end}
    .nav-toggle{
      display:none;
      border:1px solid rgba(20,30,60,.12);
      background: rgba(255,255,255,.7);
      border-radius: 12px;
      width: 44px; height: 44px;
      align-items:center; justify-content:center;
      cursor:pointer;
    }
    .nav-toggle-lines{
      width:18px; height:12px; display:block; position:relative;
    }
    .nav-toggle-lines:before,.nav-toggle-lines:after{
      content:""; position:absolute; left:0; right:0; height:2px;
      background: linear-gradient(90deg, var(--primary), var(--primary2));
      border-radius:999px;
    }
    .nav-toggle-lines:before{top:0}
    .nav-toggle-lines:after{bottom:0}
    .nav-toggle-lines{background: linear-gradient(90deg, var(--primary), var(--primary2)); height:2px; border-radius:999px; margin:5px 0 0}
    .nav-cta{display:flex; align-items:center; gap:10px}

    .nav-menu{
      display:flex;
      gap: 18px;
      align-items:center;
      justify-content:flex-end;
      flex-wrap: nowrap;
    }
    .nav-item{
      color: var(--muted);
      text-decoration:none;
      font-weight: 650;
      font-size: 14px;
      padding: 10px 0;
      position:relative;
      white-space:nowrap;
    }
    .nav-item:after{
      content:"";
      position:absolute; left:0; right:0; bottom:6px;
      height:2px; background: linear-gradient(90deg, var(--primary), var(--primary2));
      transform: scaleX(0);
      transform-origin:left;
      transition: transform .18s ease;
      border-radius:999px;
      opacity:.95;
    }
    .nav-item:hover{color:var(--text)}
    .nav-item:hover:after{transform: scaleX(1)}

    .btn{
      display:inline-flex; align-items:center; justify-content:center; gap:10px;
      padding: 12px 16px;
      border-radius: 14px;
      border: 1px solid transparent;
      font-weight: 800;
      letter-spacing: .2px;
      text-decoration:none;
      cursor:pointer;
      transition: transform .12s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease, color .18s ease;
      user-select:none;
      white-space:nowrap;
    }
    .btn:active{transform: translateY(1px)}
    .btn-primary{
      color:#fff;
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary2) 55%, #ff8b3d 100%);
      box-shadow: 0 14px 34px rgba(108,60,255,.26);
    }
    .btn-primary:hover{box-shadow: 0 18px 48px rgba(108,60,255,.30)}
    .btn-outline{
      color: var(--primary);
      background: rgba(255,255,255,.75);
      border-color: rgba(108,60,255,.30);
      box-shadow: 0 10px 26px rgba(108,60,255,.10);
    }
    .btn-outline:hover{
      border-color: rgba(108,60,255,.55);
      box-shadow: 0 14px 34px rgba(108,60,255,.14);
    }
    .btn-ghost{
      color: var(--text);
      background: rgba(255,255,255,.55);
      border-color: rgba(20,30,60,.12);
    }
    .btn-ghost:hover{
      border-color: rgba(20,30,60,.18);
      box-shadow: 0 14px 34px rgba(18,24,40,.10);
    }
    .btn.small{padding:10px 14px; border-radius:12px; font-size:14px}
    .btn-primary.small,.btn-outline.small,.btn-ghost.small{padding:10px 14px; border-radius:12px; font-size:14px}
    .link-muted{color: var(--muted); text-decoration:none; font-weight:700}
    .link-muted:hover{color: var(--text); text-decoration:underline}

    .hero{
      position:relative;
      padding: 42px 0 26px;
      overflow:hidden;
    }
    .hero-grid{
      display:grid;
      grid-template-columns: 1.15fr .85fr;
      gap: 18px;
      align-items:start;
    }
    .hero-copy{
      padding-top: 10px;
      animation: inUp .6s ease both;
    }
    @keyframes inUp{from{opacity:0; transform:translateY(10px)}to{opacity:1; transform:translateY(0)}}

    .pill-row{display:flex; gap:10px; flex-wrap:wrap; align-items:center}
    .pill{
      display:inline-flex; align-items:center; gap:10px;
      padding: 10px 12px;
      background: rgba(255,255,255,.72);
      border: 1px solid rgba(20,30,60,.10);
      border-radius: 999px;
      font-weight: 800;
      color: var(--muted);
      box-shadow: 0 10px 22px rgba(18,24,40,.06);
    }
    .pill.soft{background: rgba(108,60,255,.08); border-color: rgba(108,60,255,.18); color: #4b2cff}
    .pill-dot{
      width:10px; height:10px; border-radius: 999px;
      background: linear-gradient(135deg, var(--primary), var(--primary2));
      box-shadow: 0 0 0 6px rgba(108,60,255,.12);
    }

    .hero-title{
      margin: 14px 0 10px;
      font-size: clamp(24px, 3.2vw, 40px);
      line-height: 1.15;
      letter-spacing: -0.4px;
    }
    .hero-sub{
      margin: 0;
      color: var(--muted);
      font-size: 16px;
      line-height: 1.7;
      max-width: 56ch;
    }

    .hero-actions{
      display:flex; gap:12px; margin-top: 18px; flex-wrap:wrap;
    }

    .hero-metrics{
      margin-top: 22px;
      display:grid;
      grid-template-columns: repeat(3, minmax(0,1fr));
      gap: 12px;
    }
    .metric{
      border-radius: 16px;
      background: rgba(255,255,255,.70);
      border:1px solid rgba(20,30,60,.10);
      padding: 14px 14px;
      box-shadow: 0 12px 26px rgba(18,24,40,.06);
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
      min-height: 72px;
    }
    .metric:hover{
      transform: translateY(-3px);
      border-color: rgba(108,60,255,.22);
      box-shadow: 0 18px 46px rgba(108,60,255,.14);
    }
    .metric-value{
      display:flex; align-items:center; gap:10px;
      font-weight: 900;
      color: var(--text);
      font-size: 14px;
    }
    .spark{
      width:12px; height:12px; border-radius: 4px;
      background: linear-gradient(135deg, var(--primary), var(--primary2));
      box-shadow: 0 0 0 6px rgba(108,60,255,.12);
      flex: 0 0 auto;
    }
    .metric-desc{
      margin-top: 6px;
      color: var(--muted2);
      font-weight: 700;
      font-size: 13px;
      line-height: 1.4;
    }

    .hero-panel{
      display:grid;
      grid-template-columns: 1fr;
      gap: 12px;
    }
    .panel-card{
      background: rgba(255,255,255,.78);
      border:1px solid rgba(20,30,60,.10);
      border-radius: var(--radius-xl);
      padding: 16px;
      box-shadow: var(--shadow2);
      position:relative;
      overflow:hidden;
      transform: translateZ(0);
    }
    .panel-card:before{
      content:"";
      position:absolute; inset:-2px;
      background: radial-gradient(420px 220px at 10% 10%, rgba(108,60,255,.22), transparent 60%),
                  radial-gradient(380px 240px at 90% 20%, rgba(255,61,166,.14), transparent 62%),
                  radial-gradient(420px 260px at 60% 110%, rgba(43,214,255,.12), transparent 62%);
      opacity:.85;
      pointer-events:none;
    }
    .panel-top, .panel-list, .panel-bottom{position:relative}
    .panel-top{display:flex; align-items:flex-start; gap:12px; margin-bottom: 10px}
    .panel-icon{
      width:44px; height:44px; border-radius: 16px;
      background: linear-gradient(135deg, rgba(108,60,255,.14), rgba(255,61,166,.12));
      border:1px solid rgba(108,60,255,.20);
      display:flex; align-items:center; justify-content:center;
      color: var(--primary);
      flex: 0 0 auto;
    }
    .panel-title{font-weight: 950; font-size: 15px; line-height: 1.2}
    .panel-tag{
      margin-left:auto;
      padding: 8px 10px;
      background: rgba(43,214,255,.10);
      border:1px solid rgba(43,214,255,.20);
      color:#0b6aa6;
      font-weight: 900;
      border-radius: 999px;
      font-size: 12px;
      white-space:nowrap;
      align-self:flex-start;
    }

    .panel-list{display:grid; gap:10px; margin-top: 8px}
    .panel-item{
      color: var(--muted);
      font-weight: 750;
      line-height: 1.55;
      font-size: 13px;
      display:flex; gap:10px; align-items:flex-start;
    }
    .check{
      width:18px; height:18px; border-radius: 6px;
      background: linear-gradient(135deg, rgba(108,60,255,.18), rgba(255,61,166,.14));
      border:1px solid rgba(108,60,255,.25);
      position:relative; flex:0 0 auto;
      margin-top: 2px;
    }
    .check:after{
      content:"";
      position:absolute;
      left:5px; top:4px;
      width:6px; height:9px;
      border-right:2px solid var(--primary);
      border-bottom:2px solid var(--primary);
      transform: rotate(38deg);
    }
    .panel-bottom{
      display:flex; gap:12px; align-items:center;
      margin-top: 14px;
      flex-wrap:wrap;
    }
    .panel-bottom .link-muted{font-size: 14px}

    .hero-sidebar{display:grid; gap:12px}
    .side-block{
      background: rgba(255,255,255,.70);
      border:1px solid rgba(20,30,60,.10);
      border-radius: var(--radius-lg);
      padding: 14px 14px;
      box-shadow: 0 12px 26px rgba(18,24,40,.06);
    }
    .side-title{font-weight: 950; margin-bottom: 10px}
    .chip-grid{display:flex; flex-wrap:wrap; gap:8px}
    .chip{
      background: rgba(108,60,255,.08);
      border: 1px solid rgba(108,60,255,.16);
      color: #4b2cff;
      padding: 9px 10px;
      border-radius: 999px;
      font-weight: 850;
      font-size: 12px;
      white-space:nowrap;
    }
    .soft-border{border: 1px solid rgba(108,60,255,.16)}
    .side-text{
      color: var(--muted);
      font-weight: 750;
      line-height: 1.6;
      font-size: 13px;
    }
    .hero-shade{
      position:absolute; left:0; right:0; bottom:-60px; height:120px;
      background: linear-gradient(180deg, transparent, rgba(108,60,255,.08));
      pointer-events:none;
      opacity:.9;
    }

    .section{padding: 46px 0}
    .section-head{margin-bottom: 18px}
    .h2{
      margin:0;
      font-size: clamp(20px, 2.2vw, 28px);
      letter-spacing: -0.3px;
      line-height:1.25;
    }
    .lead{
      margin: 10px 0 0;
      color: var(--muted);
      font-weight: 720;
      line-height: 1.75;
      font-size: 15px;
      max-width: 72ch;
    }

    .grid-3{
      display:grid;
      grid-template-columns: repeat(3, minmax(0,1fr));
      gap: 14px;
    }
    .grid-2{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      align-items:start;
    }

    .card{
      background: rgba(255,255,255,.78);
      border:1px solid rgba(20,30,60,.10);
      border-radius: var(--radius-xl);
      padding: 16px;
      box-shadow: 0 14px 36px rgba(18,24,40,.06);
      position:relative;
      overflow:hidden;
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    .card:hover{
      transform: translateY(-3px);
      border-color: rgba(108,60,255,.22);
      box-shadow: 0 22px 58px rgba(108,60,255,.14);
    }
    .card .h3{margin: 10px 0 8px}
    .h3{font-size: 16px; font-weight: 950; margin: 0 0 8px; line-height:1.25}
    .big{font-size: 18px}
    .card-text{
      margin:0;
      color: var(--muted);
      font-weight: 720;
      line-height: 1.7;
      font-size: 14px;
    }
    .card-icon{
      width:44px; height:44px; border-radius: 16px;
      background: rgba(108,60,255,.10);
      border: 1px solid rgba(108,60,255,.18);
      display:flex; align-items:center; justify-content:center;
      color: var(--primary);
    }
    .accent{
      border-color: rgba(255,61,166,.18);
    }
    .accent .card-icon{
      background: rgba(255,61,166,.10);
      border-color: rgba(255,61,166,.20);
      color: var(--primary2);
    }
    .accent2{
      border-color: rgba(43,214,255,.18);
    }
    .accent2 .card-icon{ color: #0ea5e9 }
    .accent3{
      border-color: rgba(255,140,61,.18);
    }

    .card-wide{
      background: rgba(255,255,255,.78);
      border:1px solid rgba(20,30,60,.10);
      border-radius: var(--radius-xl);
      padding: 18px;
      box-shadow: 0 18px 52px rgba(18,24,40,.08);
    }
    .card-wide-top{display:flex; flex-direction:column; gap:10px}
    .badge{
      display:inline-flex;
      align-items:center;
      padding: 8px 10px;
      border-radius: 999px;
      font-weight: 950;
      font-size: 12px;
      border:1px solid rgba(20,30,60,.10);
      background: rgba(255,255,255,.75);
      color: var(--muted);
      width: fit-content;
    }
    .badge-strong{
      background: linear-gradient(135deg, rgba(108,60,255,.14), rgba(255,61,166,.12));
      border-color: rgba(108,60,255,.22);
      color: #4b2cff;
    }
    .two-col{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      margin-top: 14px;
    }
    .listbox{
      border-radius: 18px;
      background: rgba(255,255,255,.65);
      border: 1px solid rgba(20,30,60,.08);
      padding: 14px 14px;
    }
    .list-item{
      display:flex; align-items:flex-start; gap:10px;
      font-weight: 850; color: var(--muted);
      line-height: 1.7;
      padding: 8px 0;
      font-size: 14px;
    }
    .check.sm{
      width:16px; height:16px; border-radius:6px;
    }
    .check.sm:after{left:4px; top:3px; width:6px; height:8px}
    .divider{height:1px; background: rgba(20,30,60,.10); margin: 14px 0}
    .callout{
      display:flex; justify-content:space-between; align-items:flex-start; gap:14px; flex-wrap:wrap;
      padding: 14px;
      border-radius: 18px;
      background: linear-gradient(135deg, rgba(108,60,255,.10), rgba(43,214,255,.08), rgba(255,61,166,.06));
      border:1px solid rgba(108,60,255,.18);
    }
    .callout-title{font-weight: 980; font-size: 16px}
    .callout-text{color: var(--muted); font-weight: 740; line-height:1.6; margin-top: 6px}
    .stack{display:grid; gap: 14px}

    .steps-grid{
      display:grid;
      grid-template-columns: repeat(4, minmax(0,1fr));
      gap: 12px;
    }
    .step-card{
      background: rgba(255,255,255,.78);
      border:1px solid rgba(20,30,60,.10);
      border-radius: var(--radius-xl);
      padding: 16px;
      box-shadow: 0 14px 36px rgba(18,24,40,.06);
      transition: transform .18s ease, box-shadow .18s ease;
    }
    .step-card:hover{transform: translateY(-3px); box-shadow: 0 22px 58px rgba(108,60,255,.14)}
    .step-no{
      font-weight: 1000;
      letter-spacing: .4px;
      color: rgba(108,60,255,.95);
      font-size: 13px;
      background: rgba(108,60,255,.10);
      border:1px solid rgba(108,60,255,.18);
      width: fit-content;
      padding: 8px 10px;
      border-radius: 999px;
    }
    .step-title{margin-top: 10px; font-weight: 980; font-size: 16px}
    .step-text{margin-top: 6px; color: var(--muted); font-weight: 740; line-height:1.7; font-size: 14px}

    .quick-actions{display:flex; gap:12px; flex-wrap:wrap; margin-top: 16px}

    .mini-bullets{margin-top: 12px; display:grid; gap:9px}
    .mini-bullet{display:flex; gap:10px; align-items:flex-start; color: var(--muted); font-weight:780; line-height:1.6; font-size: 13px}
    .dot{width:10px; height:10px; border-radius: 999px; background: linear-gradient(135deg, var(--primary), var(--primary2)); margin-top: 5px; box-shadow: 0 0 0 6px rgba(108,60,255,.12)}
    .timeline{
      border-radius: var(--radius-xl);
      background: rgba(255,255,255,.72);
      border:1px solid rgba(20,30,60,.10);
      padding: 16px;
      box-shadow: 0 18px 52px rgba(18,24,40,.06);
    }
    .timeline-item{
      display:grid; grid-template-columns: 18px 1fr;
      gap: 12px;
      padding: 12px 0;
      border-bottom: 1px dashed rgba(20,30,60,.14);
      align-items:flex-start;
    }
    .timeline-item:last-child{border-bottom:none}
    .timeline-dot{
      width:14px; height:14px; border-radius: 6px;
      background: linear-gradient(135deg, var(--primary), var(--primary2));
      box-shadow: 0 0 0 6px rgba(108,60,255,.12);
      margin-top: 4px;
    }
    .timeline-title{font-weight: 980; font-size: 15px}
    .timeline-text{margin-top: 6px; color: var(--muted); font-weight: 740; line-height:1.7; font-size: 14px}

    .flow-cta{
      margin-top: 14px;
      padding: 14px;
      border-radius: var(--radius-xl);
      background: linear-gradient(135deg, rgba(108,60,255,.10), rgba(255,61,166,.08), rgba(43,214,255,.08));
      border:1px solid rgba(108,60,255,.18);
      display:flex; align-items:center; justify-content:space-between; gap:14px; flex-wrap:wrap;
    }

    .section-subgrid{
      display:grid; grid-template-columns: 1fr 1fr; gap:14px; margin-top: 14px;
    }

    .case-top{display:flex; align-items:center; justify-content:space-between; gap:10px}
    .case-metric{
      font-weight: 950;
      color: #0b6aa6;
      background: rgba(14,165,233,.10);
      border: 1px solid rgba(14,165,233,.18);
      padding: 8px 10px;
      border-radius: 999px;
      font-size: 12px;
      white-space:nowrap;
    }
    .case-card:hover{transform: translateY(-4px)}

    .pill.wrap{flex-wrap:wrap}
    .pill.mini{
      padding: 9px 10px;
      border-radius: 999px;
      font-size: 12px;
      font-weight: 900;
      color: var(--muted);
      background: rgba(255,255,255,.70);
    }

    .faq-brief{display:grid; gap:10px; margin-top: 12px}
    .faq-brief-item{padding: 12px 12px; border-radius: 14px; border:1px solid rgba(20,30,60,.08); background: rgba(255,255,255,.65); color: var(--muted); font-weight: 780}

    .compare-wrap{
      display:grid;
      grid-template-columns: 360px 1fr;
      gap: 14px;
      align-items:start;
    }
    .rating-card{
      background: rgba(255,255,255,.80);
      border:1px solid rgba(20,30,60,.10);
      border-radius: var(--radius-xl);
      padding: 16px;
      box-shadow: 0 18px 52px rgba(18,24,40,.08);
      position:sticky;
      top: calc(var(--navH) + 14px);
    }
    .rating-top{display:flex; gap:14px; align-items:flex-start}
    .rating-stars{display:flex; gap:6px; color:#f59e0b; font-size:18px; margin-top: 2px}
    .star.on{filter: drop-shadow(0 10px 18px rgba(245,158,11,.25))}
    .rating-grade{display:flex; flex-direction:column}
    .rating-score{font-size: 40px; line-height:1; font-weight: 1100; letter-spacing: -1px; color: var(--text)}
    .rating-outof{margin-top: 6px; color: var(--muted); font-weight: 800}
    .rating-text{margin-top: 12px; color: var(--muted); font-weight: 740; line-height:1.7}
    .table-wrap{
      background: rgba(255,255,255,.78);
      border:1px solid rgba(20,30,60,.10);
      border-radius: var(--radius-xl);
      padding: 16px;
      box-shadow: 0 18px 52px rgba(18,24,40,.06);
    }
    .table-head .table-title{font-weight: 1100; font-size: 16px}
    .table-head .table-sub{color: var(--muted); font-weight: 740; margin-top: 6px; line-height:1.6}
    .table-scroll{overflow:auto; border-radius: 16px; margin-top: 12px; border:1px solid rgba(20,30,60,.08)}
    .table{width:100%; border-collapse: collapse; min-width: 720px; background: rgba(255,255,255,.75)}
    .table th, .table td{padding: 12px 12px; border-bottom: 1px solid rgba(20,30,60,.08); text-align:left; vertical-align:top}
    .table th{
      color: var(--muted);
      font-weight: 1000;
      font-size: 13px;
      background: linear-gradient(180deg, rgba(108,60,255,.07), rgba(255,61,166,.04));
      position:sticky; top:0;
      z-index:1;
    }
    .table td{font-weight: 760; color: var(--muted); font-size: 14px}
    .ok{color: var(--text); font-weight: 950}
    .table tr:last-child td{border-bottom:none}
    .table-actions{display:flex; gap:12px; flex-wrap:wrap; margin-top: 14px}

    .form-card, .contact-form-card, .price-table-card, .token-card, .contact-card{overflow:hidden}
    .form-hint{margin: 8px 0 12px; color: var(--muted); font-weight: 740; line-height:1.7; font-size: 14px}
    .form{display:grid; gap: 12px}
    .form.small{gap: 10px}
    .form-row{display:grid; grid-template-columns: 1fr 1fr; gap: 12px}
    .field{display:grid; gap:8px}
    .label-text{font-weight: 920; color: var(--muted); font-size: 13px}
    input, select, textarea{
      width:100%;
      padding: 12px 12px;
      border-radius: 14px;
      border: 1px solid rgba(20,30,60,.14);
      background: rgba(255,255,255,.88);
      color: var(--text);
      font-weight: 780;
      outline:none;
      transition: border-color .18s ease, box-shadow .18s ease, transform .12s ease;
    }
    textarea{resize: vertical; min-height: 90px}
    input:focus, select:focus, textarea:focus{
      border-color: rgba(108,60,255,.45);
      box-shadow: 0 0 0 4px rgba(108,60,255,.12);
    }
    .form-foot{display:flex; align-items:center; justify-content:space-between; gap:12px; flex-wrap:wrap}
    .privacy{color: var(--muted2); font-weight: 760; display:flex; align-items:center; gap:10px; font-size: 13px}
    .lock{filter: saturate(1.2)}
    .checklist{display:grid; gap: 10px; margin-top: 10px}
    .checkline{display:flex; gap:10px; align-items:flex-start; color: var(--muted); font-weight: 800; line-height:1.65}
    .tag-row{display:flex; gap:10px; flex-wrap:wrap}
    .tag{
      background: rgba(255,255,255,.70);
      border:1px solid rgba(20,30,60,.12);
      border-radius: 999px;
      padding: 9px 10px;
      font-weight: 900;
      color: var(--muted);
      font-size: 12px;
    }

    .quick-links{display:grid; gap:10px; margin-top: 10px}
    .quick-link{
      display:block;
      padding: 12px 12px;
      border-radius: 14px;
      background: rgba(255,255,255,.70);
      border:1px solid rgba(20,30,60,.10);
      color: var(--muted);
      font-weight: 900;
      text-decoration:none;
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease, color .18s ease;
    }
    .quick-link:hover{
      transform: translateY(-3px);
      border-color: rgba(108,60,255,.22);
      color: var(--text);
      box-shadow: 0 18px 48px rgba(108,60,255,.12);
    }

    .token-grid{
      display:grid; grid-template-columns: 1fr 1fr; gap: 12px;
      margin-top: 12px;
    }
    .token-item{
      padding: 12px 12px;
      border-radius: 16px;
      background: rgba(255,255,255,.70);
      border:1px solid rgba(20,30,60,.08);
    }
    .token-title{font-weight: 980}
    .token-text{margin-top: 6px; color: var(--muted); font-weight: 760; line-height:1.6; font-size: 14px}
    .token-note{display:flex; gap:12px; align-items:flex-start; margin-top: 10px}
    .token-note-text{color: var(--muted); font-weight: 760; line-height:1.7; font-size: 14px}
    .token-actions{display:flex; gap:12px; flex-wrap:wrap; margin-top: 14px}

    .estimate-list{display:grid; gap: 10px; margin-top: 12px}
    .estimate{
      display:flex; justify-content:space-between; gap:12px; align-items:center;
      padding: 12px 12px;
      border-radius: 16px;
      border:1px solid rgba(20,30,60,.08);
      background: rgba(255,255,255,.70);
    }
    .estimate-title{font-weight: 1000}
    .estimate-sub{margin-top: 6px; color: var(--muted); font-weight: 760; line-height:1.5; font-size: 13px}
    .meter{
      width: 92px; height: 10px;
      background: rgba(20,30,60,.10);
      border-radius: 999px;
      overflow:hidden;
      border:1px solid rgba(20,30,60,.10);
    }
    .meter-fill{height:100%}
    .m1{width:38%; background: linear-gradient(90deg, var(--primary3), var(--primary))}
    .m2{width:66%; background: linear-gradient(90deg, var(--primary), var(--primary2))}
    .m3{width:85%; background: linear-gradient(90deg, var(--primary2), #ff8b3d)}
    .m4{width:58%; background: linear-gradient(90deg, var(--primary3), #a78bfa)}
    .estimate-label{margin-top: 8px; font-weight: 1000; color: var(--muted); font-size: 12px}
    .estimate-right{display:flex; flex-direction:column; align-items:flex-end}

    .training-benefits{display:grid; gap: 12px; margin-top: 12px}
    .benefit{padding: 12px 12px; border-radius: 16px; background: rgba(255,255,255,.70); border:1px solid rgba(20,30,60,.08)}
    .benefit-title{font-weight: 1000}
    .benefit-text{margin-top: 6px; color: var(--muted); font-weight: 760; line-height:1.6; font-size: 14px}
    .training-actions{display:flex; gap:12px; flex-wrap:wrap; margin-top: 14px}

    .badge-row{display:flex; gap:10px; align-items:center}
    .icon-bullets{display:grid; gap: 12px; margin-top: 12px}
    .icon-bullet{display:flex; gap:12px; align-items:flex-start}
    .ib-icon{
      width:42px; height:42px; border-radius: 16px;
      display:flex; align-items:center; justify-content:center;
      background: rgba(108,60,255,.10);
      border:1px solid rgba(108,60,255,.18);
      flex:0 0 auto;
      font-size: 18px;
    }
    .ib-text{color: var(--muted); font-weight: 800; line-height:1.6}

    .coaching-quick{
      margin-top: 14px;
      padding: 14px;
      border-radius: var(--radius-xl);
      background: linear-gradient(135deg, rgba(108,60,255,.10), rgba(43,214,255,.08));
      border:1px solid rgba(108,60,255,.18);
    }
    .coaching-title{font-weight: 1100}
    .coaching-text{margin-top: 6px; color: var(--muted); font-weight: 760; line-height:1.7}
    .micro-links{display:flex; gap: 12px; flex-wrap:wrap; margin-top: 12px}
    .micro-links a{color: var(--muted); font-weight: 850; text-decoration:none}
    .micro-links a:hover{text-decoration:underline; color: var(--text)}

    .network-grid{
      display:grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; align-items:stretch;
    }
    .network-card{
      background: rgba(255,255,255,.78);
      border:1px solid rgba(20,30,60,.10);
      border-radius: var(--radius-xl);
      padding: 16px;
      box-shadow: 0 18px 52px rgba(18,24,40,.06);
    }
    .network-title{font-weight: 1100}
    .network-items{margin-top: 12px; display:grid; gap: 10px}
    .network-item{display:flex; gap:10px; align-items:flex-start; color: var(--muted); font-weight: 820; line-height:1.6}
    .ring{
      width:14px; height:14px; border-radius: 6px;
      background: linear-gradient(135deg, var(--primary), var(--primary2));
      box-shadow: 0 0 0 6px rgba(108,60,255,.12);
      margin-top: 3px;
      flex: 0 0 auto;
    }
    .network-call{display:grid; gap: 10px; margin-top: 12px}
    .qr-wrap{
      margin-top: 8px; display:flex; align-items:center; justify-content:flex-start;
      background: rgba(255,255,255,.70); border:1px solid rgba(20,30,60,.08); border-radius: 18px; padding: 12px;
      width: fit-content;
    }
    .qr-img{width: 96px; height:auto; border-radius: 14px; display:block}
    .small-qr{width: 78px}

    .article-list{display:grid; gap: 10px; margin-top: 12px}
    .article-item{
      display:flex; align-items:center; justify-content:space-between; gap:12px;
      padding: 12px 12px;
      border-radius: 18px;
      border:1px solid rgba(20,30,60,.08);
      background: rgba(255,255,255,.70);
      text-decoration:none;
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    .article-item:hover{
      transform: translateY(-3px);
      border-color: rgba(108,60,255,.22);
      box-shadow: 0 18px 48px rgba(108,60,255,.12);
    }
    .article-title{font-weight: 1000; color: var(--text); line-height:1.35}
    .article-meta{margin-top: 6px; color: var(--muted); font-weight: 780; font-size: 13px}
    .article-arrow{font-size: 18px; color: rgba(108,60,255,.9); font-weight: 1100}

    .card-topline{display:flex; justify-content:space-between; gap:12px; align-items:center}
    .card-note{color: var(--muted); font-weight: 780; font-size: 13px}
    .articles-foot{margin-top: 12px}

    .tag-cloud{display:flex; flex-wrap:wrap; gap:10px; margin-top: 12px}
    .cloud-tag{
      text-decoration:none;
      padding: 10px 12px;
      border-radius: 999px;
      border:1px solid rgba(20,30,60,.12);
      background: rgba(255,255,255,.70);
      color: var(--muted);
      font-weight: 930;
      transition: transform .16s ease, border-color .16s ease, color .16s ease;
      font-size: 13px;
    }
    .cloud-tag:hover{
      transform: translateY(-2px);
      border-color: rgba(108,60,255,.25);
      color: var(--text);
    }

    .ai-brief{display:grid; gap: 10px; margin-top: 12px}
    .ai-brief-row{
      padding: 12px 12px; border-radius: 16px;
      background: rgba(255,255,255,.70); border:1px solid rgba(20,30,60,.08);
      display:flex; gap: 12px; align-items:flex-start; justify-content:space-between;
    }
    .ai-brief-k{font-weight: 1100; color: var(--text); min-width: 120px}
    .ai-brief-v{color: var(--muted); font-weight: 780; line-height:1.6; font-size: 14px}

    .faq-layout{
      display:grid; grid-template-columns: 360px 1fr; gap: 14px; align-items:start;
    }
    .faq-hero{position:sticky; top: calc(var(--navH) + 14px)}
    .faq-actions{display:flex; gap:12px; flex-wrap:wrap; margin-top: 12px}
    .support-box{margin-top: 10px}
    .support-title{font-weight: 1100}
    .support-text{color: var(--muted); font-weight: 780; line-height:1.7; margin-top: 8px}
    .support-tags{display:flex; flex-wrap:wrap; gap:10px; margin-top: 12px}

    .accordion{display:grid; gap: 10px; margin-top: 12px}
    .acc-item{
      border-radius: 18px;
      border:1px solid rgba(20,30,60,.08);
      background: rgba(255,255,255,.70);
      overflow:hidden;
      transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease;
    }
    .acc-item:hover{
      border-color: rgba(108,60,255,.22);
      box-shadow: 0 18px 48px rgba(108,60,255,.10);
    }
    .acc-btn{
      width:100%;
      text-align:left;
      background: transparent;
      border:0;
      padding: 14px 14px;
      cursor:pointer;
      font-weight: 980;
      color: var(--text);
      display:flex; gap:12px; align-items:center; justify-content:space-between;
      font-size: 14px;
    }
    .acc-icon{
      width: 20px; height: 20px;
      border-radius: 8px;
      background: rgba(108,60,255,.10);
      border:1px solid rgba(108,60,255,.18);
      position:relative; flex:0 0 auto;
    }
    .acc-icon:before, .acc-icon:after{
      content:""; position:absolute; left:50%; top:50%;
      width:10px; height:2px; background: linear-gradient(90deg, var(--primary), var(--primary2));
      transform: translate(-50%,-50%);
      border-radius:999px;
      transition: transform .18s ease;
    }
    .acc-icon:after{
      transform: translate(-50%,-50%) rotate(90deg);
      opacity:1;
    }
    .acc-btn[aria-expanded="true"] .acc-icon:after{transform: translate(-50%,-50%) rotate(0deg); opacity:0}
    .acc-panel{padding: 0 14px 14px}
    .acc-content{color: var(--muted); font-weight: 780; line-height:1.75; font-size: 14px}

    .faq-end{
      margin-top: 14px;
      padding: 14px;
      border-radius: var(--radius-xl);
      background: linear-gradient(135deg, rgba(108,60,255,.10), rgba(255,61,166,.08), rgba(43,214,255,.08));
      border:1px solid rgba(108,60,255,.18);
      display:flex; justify-content:space-between; gap:14px; align-items:center; flex-wrap:wrap;
    }
    .faq-end-title{font-weight: 1100}
    .faq-end-text{margin-top: 6px; color: var(--muted); font-weight: 780; line-height:1.6}

    .contact-grid{
      display:grid; gap: 12px;
      grid-template-columns: 1fr 1fr;
      margin-top: 12px;
    }
    .contact-item{
      border-radius: 16px;
      background: rgba(255,255,255,.70);
      border:1px solid rgba(20,30,60,.08);
      padding: 12px;
    }
    .contact-item.span2{grid-column: 1 / -1}
    .contact-k{color: var(--muted); font-weight: 920; font-size: 13px}
    .contact-v{margin-top: 6px; font-weight: 980; color: var(--text); line-height:1.4}
    .contact-link{color: var(--primary); font-weight: 1000; text-decoration:none}
    .contact-link:hover{text-decoration:underline}
    .contact-quick{display:flex; gap:12px; flex-wrap:wrap}

    .contact-form-head{display:flex; align-items:baseline; justify-content:space-between; gap:12px}
    .wechat-standby{
      display:flex; gap: 12px; align-items:center; justify-content:space-between; flex-wrap:wrap;
      padding: 14px;
      border-radius: var(--radius-xl);
      background: rgba(255,255,255,.70);
      border:1px solid rgba(20,30,60,.08);
    }
    .support-title{font-weight:1100}
    .support-text{margin-top: 6px; color: var(--muted); font-weight: 780; line-height:1.6}
    .wechat-qr{display:flex; align-items:center; justify-content:center}
    .contact-form-card .qr-img{width: 104px}

    .friend-links{
      display:flex; flex-wrap:wrap; gap: 10px; margin-top: 12px;
    }
    .friend-links a{
      text-decoration:none;
      padding: 10px 12px;
      border-radius: 999px;
      border:1px solid rgba(20,30,60,.12);
      background: rgba(255,255,255,.70);
      color: var(--muted);
      font-weight: 930;
      font-size: 13px;
      transition: transform .16s ease, border-color .16s ease, color .16s ease;
    }
    .friend-links a:hover{transform: translateY(-2px); border-color: rgba(108,60,255,.25); color: var(--text)}

    .agent-card{background: rgba(255,255,255,.82)}
    .checklist .checkline{font-size: 14px}
    .agent-cta{
      display:flex; justify-content:space-between; gap:14px; align-items:flex-start; flex-wrap:wrap;
    }
    .agent-side .partner-grid{
      display:grid; gap: 12px; grid-template-columns: 1fr 1fr;
      margin-top: 12px;
    }
    .partner{
      padding: 12px;
      border-radius: 16px;
      border:1px solid rgba(20,30,60,.08);
      background: rgba(255,255,255,.70);
      display:flex; gap:12px; align-items:flex-start;
    }
    .partner-icon{
      width:42px; height:42px; border-radius: 16px;
      display:flex; align-items:center; justify-content:center;
      background: rgba(255,61,166,.10);
      border:1px solid rgba(255,61,166,.18);
      flex:0 0 auto;
      font-size: 18px;
    }
    .partner-text{color: var(--muted); font-weight: 850; line-height:1.6}
    .agent-links{display:flex; gap: 12px; flex-wrap:wrap; margin-top: 12px}

    .testimonials .grid-3{grid-template-columns: repeat(3, minmax(0,1fr))}
    .comment-card{
      background: rgba(255,255,255,.78);
      border:1px solid rgba(20,30,60,.10);
      border-radius: var(--radius-xl);
      padding: 16px;
      box-shadow: 0 18px 52px rgba(18,24,40,.06);
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    .comment-card:hover{transform: translateY(-3px); border-color: rgba(108,60,255,.22); box-shadow: 0 22px 58px rgba(108,60,255,.14)}
    .comment-card.accent2{border-color: rgba(43,214,255,.18)}
    .comment-card.accent3{border-color: rgba(255,140,61,.18)}
    .comment-top{display:flex; gap:12px; align-items:center}
    .avatar{
      width:44px; height:44px; border-radius: 16px;
      background: linear-gradient(135deg, rgba(108,60,255,.18), rgba(255,61,166,.14));
      border:1px solid rgba(108,60,255,.22);
      display:flex; align-items:center; justify-content:center;
      font-weight: 1100; color: var(--primary);
      flex:0 0 auto;
    }
    .comment-role{font-weight: 1100}
    .comment-stars{color:#f59e0b; letter-spacing: 1px; margin-top: 2px}
    .comment-text{margin-top: 12px; color: var(--muted); font-weight: 770; line-height:1.75; font-size: 14px}

    .logos-grid{
      display:grid; grid-template-columns: repeat(6, minmax(0,1fr));
      gap: 12px;
    }
    .logo-chip{
      padding: 14px 12px;
      border-radius: var(--radius-xl);
      background: rgba(255,255,255,.78);
      border:1px solid rgba(20,30,60,.10);
      box-shadow: 0 14px 36px rgba(18,24,40,.06);
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
      display:flex; gap:12px; align-items:center;
    }
    .logo-chip:hover{transform: translateY(-3px); border-color: rgba(108,60,255,.22); box-shadow: 0 22px 58px rgba(108,60,255,.14)}
    .logo-mark{
      width:44px; height:44px; border-radius: 16px;
      background: linear-gradient(135deg, rgba(108,60,255,.12), rgba(43,214,255,.10));
      border:1px solid rgba(108,60,255,.18);
      display:flex; align-items:center; justify-content:center;
      font-weight: 1100; color: var(--primary);
    }
    .logo-text{font-weight: 1000; color: var(--text); line-height:1.25; font-size: 14px}

    .site-footer{
      margin-top: 24px;
      background: #0f172a;
      color: rgba(255,255,255,.92);
      border-top: 1px solid rgba(255,255,255,.10);
    }
    .footer-wrap{padding: 28px 0 18px}
    .footer-top{
      display:grid; grid-template-columns: 1.4fr 1fr 1fr 1fr;
      gap: 16px;
      align-items:start;
    }
    .footer-brand .ai-page-logo{width: 160px}
    .footer-text{margin-top: 10px; color: rgba(255,255,255,.78); font-weight: 800; line-height:1.6}
    .footer-links-row{display:flex; gap:12px; flex-wrap:wrap; margin-top: 12px}
    .footer-home{
      text-decoration:none;
      padding: 10px 12px;
      border-radius: 999px;
      border:1px solid rgba(255,255,255,.18);
      background: rgba(255,255,255,.06);
      color: rgba(255,255,255,.92);
      font-weight: 950;
      font-size: 13px;
    }
    .footer-home.alt{
      background: linear-gradient(135deg, rgba(108,60,255,.35), rgba(255,61,166,.22));
      border-color: rgba(255,255,255,.22);
    }
    .footer-col-title{font-weight: 1100; margin-bottom: 10px; color: rgba(255,255,255,.92)}
    .footer-col-links{display:grid; gap: 8px}
    .footer-col-links a{
      color: rgba(255,255,255,.78);
      text-decoration:none;
      font-weight: 850;
      line-height:1.5;
    }
    .footer-col-links a:hover{color:#fff; text-decoration:underline}
    .footer-text-small{color: rgba(255,255,255,.78); font-weight: 820; line-height:1.5; font-size: 13px}
    .footer-qr{margin-top: 12px}
    .footer-bottom{
      margin-top: 18px;
      padding-top: 14px;
      border-top: 1px solid rgba(255,255,255,.10);
      display:flex; justify-content:space-between; gap: 12px; flex-wrap:wrap; align-items:center;
      color: rgba(255,255,255,.72);
      font-weight: 800;
    }
    .legal{display:flex; gap:10px; align-items:center}
    .legal a{color: rgba(255,255,255,.78); text-decoration:none; font-weight: 900}
    .legal a:hover{color:#fff; text-decoration:underline}
    .sep{opacity:.6}

    .float-bar{
      position: fixed;
      right: 14px;
      bottom: 14px;
      z-index: 60;
      display:flex;
      gap: 10px;
      align-items:flex-end;
      pointer-events:none;
    }
    .float-btn{
      pointer-events:auto;
      border:1px solid rgba(20,30,60,.12);
      background: rgba(255,255,255,.86);
      border-radius: 16px;
      padding: 10px 12px;
      box-shadow: 0 18px 48px rgba(18,24,40,.12);
      cursor:pointer;
      display:flex; gap:10px; align-items:center; justify-content:center;
      color: var(--text);
      text-decoration:none;
      transition: transform .14s ease, box-shadow .18s ease, border-color .18s ease;
      min-width: 44px;
    }
    .float-btn:hover{transform: translateY(-3px); border-color: rgba(108,60,255,.25)}
    .float-btn.primary{
      color:#fff;
      background: linear-gradient(135deg, var(--primary) 0%, var(--primary2) 55%, #ff8b3d 100%);
      border-color: rgba(255,255,255,.16);
    }
    .float-label{font-weight: 980; font-size: 13px; max-width: 90px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap}
    .toast{
      position: fixed;
      left: 50%;
      top: 18px;
      transform: translateX(-50%);
      background: rgba(15, 23, 42, .94);
      color:#fff;
      border:1px solid rgba(255,255,255,.16);
      padding: 10px 14px;
      border-radius: 14px;
      box-shadow: 0 22px 68px rgba(0,0,0,.25);
      opacity:0;
      pointer-events:none;
      transition: opacity .18s ease, transform .18s ease;
      z-index: 70;
      font-weight: 900;
      letter-spacing:.2px;
    }
    .toast.show{opacity:1; transform: translateX(-50%) translateY(6px)}
    .fade-in{opacity:0; transform: translateY(10px); transition: opacity .6s ease, transform .6s ease}
    .fade-in.in{opacity:1; transform: translateY(0)}

    @media (max-width: 980px){
      .hero-grid{grid-template-columns: 1fr; gap: 12px}
      .hero-metrics{grid-template-columns: 1fr; }
      .grid-3{grid-template-columns: 1fr 1fr}
      .steps-grid{grid-template-columns: 1fr 1fr}
      .compare-wrap{grid-template-columns: 1fr}
      .rating-card{position:relative; top:auto}
      .faq-layout{grid-template-columns: 1fr}
      .faq-hero{position:relative; top:auto}
      .network-grid{grid-template-columns: 1fr}
      .logos-grid{grid-template-columns: repeat(3, minmax(0,1fr))}
      .footer-top{grid-template-columns: 1fr 1fr}
      .testimonials .grid-3{grid-template-columns: 1fr 1fr}
      .section-subgrid{grid-template-columns: 1fr}
      .hero-sidebar{grid-template-columns: 1fr}
      .two-col{grid-template-columns: 1fr}
    }

    @media (max-width: 720px){
      :root{--padX: 14px; --navH: 64px}
      .nav-toggle{display:flex}
      .nav-menu{
        display:none;
        position:absolute;
        right: var(--padX);
        top: calc(var(--navH) + 10px);
        width: min(92vw, 420px);
        background: rgba(255,255,255,.92);
        border:1px solid rgba(20,30,60,.12);
        border-radius: 18px;
        box-shadow: 0 22px 68px rgba(18,24,40,.16);
        padding: 10px;
        flex-direction:column;
        gap: 6px;
        align-items:flex-start;
      }
      .nav-menu.open{display:flex}
      .nav-item{padding: 10px 10px; width:100%}
      .nav-item:after{bottom:10px}
      .ai-page-logo{width: 132px}
      .grid-2{grid-template-columns: 1fr}
      .grid-3{grid-template-columns: 1fr}
      .steps-grid{grid-template-columns: 1fr}
      .form-row{grid-template-columns: 1fr}
      .contact-grid{grid-template-columns: 1fr}
      .contact-item.span2{grid-column:auto}
      .testimonials .grid-3{grid-template-columns: 1fr}
      .logos-grid{grid-template-columns: repeat(2, minmax(0,1fr))}
      .footer-top{grid-template-columns: 1fr}
      .float-bar{left: 12px; right: 12px; justify-content:space-between}
      .float-label{display:none}
      .float-btn{min-width: 46px; flex: 1}
    }

    @media (prefers-reduced-motion: reduce){
      *{scroll-behavior:auto !important}
      .bg-orb{animation:none}
      .fade-in{transition:none}
      .card,.step-card,.metric,.article-item,.quick-link,.logo-chip,.comment-card{transition:none}
    }