:root{
      --bg: #f6f4ef;
      --surface: rgba(255,255,255,.78);
      --surface-strong: rgba(255,255,255,.92);
      --text: #111827;
      --muted: #4b5563;
      --muted2:#6b7280;
      --border: rgba(17,24,39,.12);
      --shadow: 0 18px 45px rgba(16,24,40,.10);
      --shadow2: 0 10px 25px rgba(16,24,40,.10);
      --primary: #0f62fe;
      --primary2:#7c3aed;
      --accent:#f59e0b;
      --good:#10b981;
      --danger:#ef4444;
      --ring: rgba(15,98,254,.25);
      --radius-xl: 22px;
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 10px;
      --container: 1140px;
    }

    *{ box-sizing: border-box; }
    html{ scroll-behavior:smooth; }
    body{
      margin:0;
      font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "PingFang SC","Hiragino Sans GB","Microsoft YaHei", sans-serif;
      color: var(--text);
      background:
        radial-gradient(900px 480px at 15% 0%, rgba(124,58,237,.18), transparent 60%),
        radial-gradient(800px 420px at 85% 10%, rgba(15,98,254,.18), transparent 55%),
        radial-gradient(700px 380px at 50% 0%, rgba(245,158,11,.12), transparent 55%),
        linear-gradient(180deg, #fbfaf7 0%, var(--bg) 55%, #f8f7f2 100%);
      min-height: 100vh;
    }

    .container{
      width: 100%;
      max-width: var(--container);
      margin: 0 auto;
      padding: 0 18px;
    }

    .skip-link{
      position:absolute;
      left:-9999px;
      top: 8px;
      z-index:9999;
      background:#fff;
      color:#111827;
      padding:10px 12px;
      border-radius:10px;
      border:1px solid var(--border);
      box-shadow: var(--shadow2);
    }
    .skip-link:focus{ left: 18px; }

    header{
      position: sticky;
      top: 0;
      z-index: 50;
      backdrop-filter: blur(10px);
      background: rgba(246,244,239,.72);
      border-bottom: 1px solid rgba(17,24,39,.08);
    }
    .nav-wrap{
      display:flex;
      align-items:center;
      justify-content: space-between;
      gap: 14px;
      padding: 12px 0;
    }
    .brand{
      display:flex;
      align-items:center;
      gap: 12px;
      min-width: 220px;
    }
    .brand img.ai-page-logo{ width: 150px; height:auto; display:block; }
    .brand .brand-meta{
      display:flex;
      flex-direction: column;
      line-height: 1.1;
    }
    .brand .brand-title{
      font-weight: 800;
      letter-spacing: .2px;
      font-size: 14px;
      color: #0b1220;
    }
    .brand .brand-sub{
      font-size: 12px;
      color: var(--muted2);
      margin-top: 3px;
    }

    nav .nav-links{
      display:flex;
      align-items:center;
      gap: 16px;
      flex-wrap: wrap;
      justify-content: flex-end;
    }
    .nav-links a{
      text-decoration: none;
      color: #111827;
      font-size: 13px;
      padding: 8px 10px;
      border-radius: 999px;
      transition: background .2s ease, transform .2s ease, box-shadow .2s ease;
      white-space: nowrap;
    }
    .nav-links a:hover{
      background: rgba(15,98,254,.08);
      box-shadow: 0 10px 22px rgba(15,98,254,.10);
      transform: translateY(-1px);
    }

    .nav-cta{
      display:flex;
      align-items:center;
      gap: 10px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap: 10px;
      text-decoration:none;
      border-radius: 999px;
      padding: 11px 14px;
      border: 1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.72);
      color:#0b1220;
      font-weight: 650;
      font-size: 13px;
      transition: transform .18s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
      cursor:pointer;
      user-select:none;
    }
    .btn:hover{
      transform: translateY(-1px);
      box-shadow: 0 14px 30px rgba(16,24,40,.10);
      border-color: rgba(15,98,254,.22);
      background: rgba(255,255,255,.9);
    }
    .btn.primary{
      background: linear-gradient(135deg, rgba(15,98,254,.95), rgba(124,58,237,.95));
      border-color: transparent;
      color: #fff;
      box-shadow: 0 18px 35px rgba(15,98,254,.22);
    }
    .btn.primary:hover{
      box-shadow: 0 22px 42px rgba(124,58,237,.22);
    }
    .btn.ghost{
      background: rgba(255,255,255,.55);
    }
    .btn .dot{
      width: 10px; height: 10px; border-radius: 50%;
      background: rgba(255,255,255,.95);
      box-shadow: 0 0 0 6px rgba(255,255,255,.18);
    }

    .hamburger{
      display:none;
      width: 42px;
      height: 42px;
      border-radius: 12px;
      border: 1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.65);
      align-items:center;
      justify-content:center;
      cursor:pointer;
      transition: transform .18s ease, box-shadow .2s ease, background .2s ease;
    }
    .hamburger:hover{ transform: translateY(-1px); box-shadow: 0 14px 30px rgba(16,24,40,.10); background: rgba(255,255,255,.92); }
    .hamburger .lines{
      width: 18px; height: 14px; position:relative;
    }
    .hamburger .lines span{
      position:absolute; left:0; right:0;
      height: 2px; background: #111827; border-radius: 2px;
      transition: transform .2s ease, top .2s ease, opacity .2s ease;
    }
    .hamburger .lines span:nth-child(1){ top:0; }
    .hamburger .lines span:nth-child(2){ top:6px; }
    .hamburger .lines span:nth-child(3){ top:12px; }

    .mobile-menu{
      display:none;
      padding: 10px 0 14px;
    }
    .mobile-menu .panel{
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.78);
      border-radius: 16px;
      padding: 12px;
      box-shadow: var(--shadow2);
    }
    .mobile-menu a{
      display:block;
      text-decoration:none;
      color:#111827;
      padding: 12px 12px;
      border-radius: 12px;
      font-weight: 600;
      font-size: 14px;
      transition: background .2s ease, transform .2s ease;
    }
    .mobile-menu a:hover{ background: rgba(15,98,254,.08); transform: translateY(-1px); }

    main{ padding: 26px 0 10px; }

    .hero{
      padding: 22px 0 6px;
      position: relative;
      overflow:hidden;
    }
    .hero-grid{
      display:grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 18px;
      align-items: start;
    }
    .hero-card{
      background: linear-gradient(180deg, rgba(255,255,255,.82), rgba(255,255,255,.60));
      border: 1px solid rgba(17,24,39,.10);
      border-radius: var(--radius-xl);
      box-shadow: var(--shadow);
      padding: 22px 22px 18px;
      position: relative;
      overflow:hidden;
    }
    .hero-card::before{
      content:"";
      position:absolute;
      inset:-2px;
      background:
        radial-gradient(650px 280px at 15% 0%, rgba(124,58,237,.22), transparent 60%),
        radial-gradient(580px 260px at 85% 10%, rgba(15,98,254,.20), transparent 55%),
        radial-gradient(520px 240px at 55% 0%, rgba(245,158,11,.14), transparent 55%);
      pointer-events:none;
      filter: blur(0px);
      opacity: .9;
    }
    .hero-card > *{ position: relative; z-index: 1; }

    .kicker{
      display:flex;
      align-items:center;
      gap: 10px;
      flex-wrap: wrap;
      margin-bottom: 12px;
    }
    .pill{
      display:inline-flex;
      align-items:center;
      gap: 8px;
      padding: 8px 12px;
      border-radius: 999px;
      border: 1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.65);
      font-size: 13px;
      font-weight: 650;
      color: #0b1220;
      user-select:none;
    }
    .pill .spark{
      width: 12px; height: 12px; border-radius: 4px;
      background: linear-gradient(135deg, rgba(15,98,254,1), rgba(124,58,237,1));
      box-shadow: 0 0 0 6px rgba(124,58,237,.14);
    }

    h1{
      margin: 0 0 12px;
      font-size: clamp(24px, 3.2vw, 40px);
      letter-spacing: -0.6px;
      line-height: 1.15;
    }
    .hero-lead{
      margin: 0 0 18px;
      color: var(--muted);
      font-size: 15px;
      line-height: 1.7;
      max-width: 62ch;
    }
    .hero-actions{
      display:flex;
      gap: 12px;
      flex-wrap: wrap;
      align-items:center;
      margin-bottom: 18px;
    }

    .mini-trust{
      display:flex;
      gap: 12px;
      flex-wrap: wrap;
      align-items: center;
      margin-top: 8px;
    }
    .trust-item{
      display:flex;
      align-items:center;
      gap: 10px;
      padding: 10px 12px;
      border-radius: 14px;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.55);
      transition: transform .2s ease, box-shadow .2s ease;
      user-select:none;
    }
    .trust-item:hover{ transform: translateY(-2px); box-shadow: 0 18px 34px rgba(16,24,40,.10); }
    .trust-icon{
      width: 34px; height: 34px; border-radius: 12px;
      display:flex; align-items:center; justify-content:center;
      border: 1px solid rgba(17,24,39,.10);
      background: linear-gradient(180deg, rgba(255,255,255,.9), rgba(255,255,255,.6));
    }
    .trust-icon svg{ width: 18px; height: 18px; }
    .trust-text{ display:flex; flex-direction: column; line-height: 1.15; }
    .trust-text strong{ font-size: 13px; }
    .trust-text span{ font-size: 12px; color: var(--muted2); margin-top: 4px; }

    .hero-aside{
      display:flex;
      flex-direction: column;
      gap: 14px;
    }
    .data-card{
      background: rgba(255,255,255,.70);
      border: 1px solid rgba(17,24,39,.10);
      border-radius: var(--radius-xl);
      box-shadow: var(--shadow2);
      padding: 16px;
      overflow:hidden;
      position:relative;
    }
    .data-card::after{
      content:"";
      position:absolute;
      inset:-40px -60px auto auto;
      width: 180px; height: 180px;
      border-radius: 50%;
      background: radial-gradient(circle at 30% 30%, rgba(15,98,254,.22), transparent 55%),
                  radial-gradient(circle at 60% 60%, rgba(124,58,237,.18), transparent 55%);
      transform: rotate(12deg);
      pointer-events:none;
    }
    .data-card > *{ position: relative; z-index: 1; }

    .data-title{
      display:flex;
      align-items:center;
      justify-content: space-between;
      gap: 10px;
      margin-bottom: 10px;
    }
    .data-title h2{
      margin:0;
      font-size: 16px;
      letter-spacing: -.2px;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap: 8px;
      padding: 8px 10px;
      border-radius: 999px;
      border: 1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.6);
      font-weight: 700;
      font-size: 12px;
      color:#0b1220;
      user-select:none;
      white-space: nowrap;
    }
    .badge .ring{
      width: 10px; height: 10px; border-radius: 50%;
      background: linear-gradient(135deg, rgba(245,158,11,1), rgba(124,58,237,1));
      box-shadow: 0 0 0 6px rgba(124,58,237,.14);
    }
    .metric-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
    }
    .metric{
      padding: 12px 12px;
      border-radius: 14px;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.55);
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .metric:hover{ transform: translateY(-2px); box-shadow: 0 16px 30px rgba(16,24,40,.10); }
    .metric .num{
      font-weight: 900;
      letter-spacing: -0.6px;
      font-size: 20px;
    }
    .metric .lab{
      margin-top: 6px;
      color: var(--muted2);
      font-size: 12px;
      line-height: 1.4;
    }

    .side-steps{
      background: rgba(255,255,255,.66);
      border: 1px solid rgba(17,24,39,.10);
      border-radius: var(--radius-xl);
      box-shadow: var(--shadow2);
      padding: 16px;
    }
    .side-steps h2{ margin: 0 0 10px; font-size: 16px; }
    .step-list{
      display:flex;
      flex-direction: column;
      gap: 10px;
    }
    .step-item{
      display:flex; gap: 12px; align-items:flex-start;
      padding: 12px 12px;
      border-radius: 16px;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.55);
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .step-item:hover{ transform: translateY(-2px); box-shadow: 0 18px 34px rgba(16,24,40,.10); }
    .step-no{
      width: 34px; height: 34px; border-radius: 14px;
      display:flex; align-items:center; justify-content:center;
      color:#fff;
      font-weight: 900;
      background: linear-gradient(135deg, rgba(15,98,254,.98), rgba(124,58,237,.98));
      box-shadow: 0 14px 28px rgba(15,98,254,.20);
      flex:0 0 auto;
      user-select:none;
    }
    .step-item strong{ font-size: 13px; display:block; margin-top: 1px; }
    .step-item span{ font-size: 12px; color: var(--muted2); line-height: 1.45; margin-top: 5px; display:block; }

    section{
      padding: 24px 0;
    }
    .section-title{
      display:flex;
      align-items:flex-end;
      justify-content: space-between;
      gap: 14px;
      margin-bottom: 14px;
    }
    .section-title h2{
      margin:0;
      font-size: 22px;
      letter-spacing: -0.4px;
    }
    .section-title p{
      margin:0;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.6;
      max-width: 64ch;
    }

    .grid-3{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 14px;
      align-items: stretch;
    }
    .grid-2{
      display:grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
      align-items: stretch;
    }
    .card{
      background: rgba(255,255,255,.70);
      border: 1px solid rgba(17,24,39,.10);
      border-radius: var(--radius-xl);
      box-shadow: 0 16px 34px rgba(16,24,40,.08);
      padding: 16px;
      overflow:hidden;
      position: relative;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .card:hover{
      transform: translateY(-2px);
      box-shadow: 0 22px 50px rgba(16,24,40,.10);
      border-color: rgba(15,98,254,.18);
    }
    .card .icon{
      width: 42px; height: 42px; border-radius: 16px;
      display:flex; align-items:center; justify-content:center;
      border: 1px solid rgba(17,24,39,.10);
      background: linear-gradient(180deg, rgba(255,255,255,.95), rgba(255,255,255,.55));
      margin-bottom: 10px;
    }
    .card .icon svg{ width: 20px; height: 20px; }
    .card h3{
      margin: 0 0 8px;
      font-size: 15px;
      letter-spacing: -.2px;
    }
    .card p{
      margin: 0;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.7;
    }
    .card ul{
      margin: 10px 0 0;
      padding: 0;
      list-style:none;
      display:flex;
      flex-direction: column;
      gap: 8px;
    }
    .card li{
      display:flex;
      gap: 10px;
      align-items:flex-start;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.6;
    }
    .check{
      width: 18px; height: 18px; border-radius: 6px;
      background: rgba(16,185,129,.12);
      border: 1px solid rgba(16,185,129,.25);
      display:flex; align-items:center; justify-content:center;
      flex:0 0 auto;
      margin-top: 1px;
    }
    .check svg{ width: 12px; height: 12px; color: #10b981; }

    .flow{
      display:grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 12px;
      align-items: stretch;
    }
    .flow .node{
      background: rgba(255,255,255,.66);
      border: 1px solid rgba(17,24,39,.10);
      border-radius: 18px;
      padding: 14px;
      position: relative;
      overflow:hidden;
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .flow .node:hover{ transform: translateY(-2px); box-shadow: 0 22px 45px rgba(16,24,40,.10); }
    .flow .node::before{
      content:"";
      position:absolute;
      inset:-30px -30px auto auto;
      width: 120px; height: 120px; border-radius: 50%;
      background: radial-gradient(circle at 35% 35%, rgba(15,98,254,.18), transparent 60%),
                  radial-gradient(circle at 65% 65%, rgba(124,58,237,.14), transparent 60%);
      pointer-events:none;
    }
    .flow .node > *{ position:relative; z-index:1; }
    .node .top{
      display:flex; align-items:center; justify-content: space-between; gap: 10px;
      margin-bottom: 10px;
    }
    .node .step-tag{
      display:inline-flex; align-items:center; gap: 8px;
      font-weight: 900;
      color:#0b1220;
      font-size: 12px;
      padding: 7px 10px;
      border: 1px solid rgba(17,24,39,.10);
      border-radius: 999px;
      background: rgba(255,255,255,.55);
      user-select:none;
      white-space:nowrap;
    }
    .node .step-num{
      width: 30px; height: 30px; border-radius: 12px;
      display:flex; align-items:center; justify-content:center;
      background: linear-gradient(135deg, rgba(245,158,11,.95), rgba(124,58,237,.95));
      color:#fff;
      font-weight: 900;
      box-shadow: 0 14px 28px rgba(124,58,237,.18);
      user-select:none;
    }
    .node h3{ margin:0 0 8px; font-size: 14px; letter-spacing:-.2px; }
    .node p{ margin:0; color: var(--muted); font-size: 12.5px; line-height: 1.65; }

    .compare-wrap{
      background: rgba(255,255,255,.62);
      border: 1px solid rgba(17,24,39,.10);
      border-radius: var(--radius-xl);
      box-shadow: var(--shadow2);
      padding: 16px;
    }
    .compare-top{
      display:flex; align-items:flex-start; justify-content: space-between; gap: 14px;
      margin-bottom: 12px;
    }
    .score-card{
      background: linear-gradient(135deg, rgba(15,98,254,.12), rgba(124,58,237,.10));
      border: 1px solid rgba(15,98,254,.18);
      border-radius: 18px;
      padding: 12px 12px;
      min-width: 240px;
    }
    .score-row{
      display:flex; align-items: center; justify-content: space-between; gap: 10px;
    }
    .stars{
      display:flex; gap: 4px; align-items:center;
    }
    .stars svg{ width: 16px; height: 16px; color: #f59e0b; }
    .score-value{
      text-align:right;
    }
    .score-value strong{
      font-size: 28px;
      letter-spacing: -0.8px;
      line-height: 1;
      display:block;
    }
    .score-value span{
      font-size: 12px;
      color: var(--muted2);
      display:block;
      margin-top: 6px;
      line-height: 1.2;
    }
    table{
      width:100%;
      border-collapse: separate;
      border-spacing: 0;
      overflow:hidden;
      border-radius: 16px;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.78);
    }
    th, td{
      padding: 12px 12px;
      border-bottom: 1px solid rgba(17,24,39,.08);
      font-size: 13px;
      text-align:left;
      vertical-align: top;
    }
    th{
      background: rgba(17,24,39,.03);
      color:#0b1220;
      font-weight: 800;
      letter-spacing: -.2px;
    }
    tr:last-child td{ border-bottom:none; }

    .tag-cloud{
      display:flex;
      flex-wrap: wrap;
      gap: 10px;
    }
    .tag{
      border-radius: 999px;
      padding: 10px 12px;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.62);
      color:#0b1220;
      font-weight: 700;
      font-size: 12.5px;
      transition: transform .2s ease, box-shadow .2s ease;
      user-select:none;
    }
    .tag:hover{ transform: translateY(-2px); box-shadow: 0 18px 35px rgba(16,24,40,.10); }

    .timeline{
      display:grid;
      grid-template-columns: 1.2fr .8fr;
      gap: 14px;
      align-items: start;
    }
    .timeline .rail{
      background: rgba(255,255,255,.66);
      border: 1px solid rgba(17,24,39,.10);
      border-radius: var(--radius-xl);
      padding: 16px;
      box-shadow: var(--shadow2);
      position: relative;
      overflow:hidden;
    }
    .rail::after{
      content:"";
      position:absolute;
      left: 22px; top: 18px; bottom: 18px;
      width: 2px;
      background: linear-gradient(180deg, rgba(15,98,254,.55), rgba(124,58,237,.35), rgba(245,158,11,.30));
      opacity:.55;
    }
    .rail .items{
      display:flex;
      flex-direction: column;
      gap: 12px;
      position: relative;
      z-index: 1;
    }
    .titem{
      display:flex; gap: 12px; align-items:flex-start;
      padding-left: 44px;
    }
    .titem .b{
      width: 16px; height: 16px; border-radius: 6px;
      background: linear-gradient(135deg, rgba(15,98,254,.95), rgba(124,58,237,.95));
      box-shadow: 0 0 0 7px rgba(124,58,237,.14);
      margin-top: 3px;
      flex:0 0 auto;
    }
    .titem strong{ display:block; font-size: 13.5px; }
    .titem span{ display:block; margin-top: 6px; color: var(--muted); font-size: 12.8px; line-height: 1.6; }

    .accordion{
      display:flex;
      flex-direction: column;
      gap: 10px;
    }
    details{
      background: rgba(255,255,255,.68);
      border: 1px solid rgba(17,24,39,.10);
      border-radius: 18px;
      padding: 10px 12px;
      box-shadow: 0 16px 34px rgba(16,24,40,.06);
      transition: border-color .2s ease, box-shadow .2s ease;
    }
    details[open]{ border-color: rgba(15,98,254,.20); box-shadow: 0 22px 50px rgba(16,24,40,.10); }
    summary{
      cursor:pointer;
      list-style:none;
      display:flex;
      align-items:center;
      justify-content: space-between;
      gap: 12px;
      padding: 8px 8px;
      user-select:none;
    }
    summary::-webkit-details-marker{ display:none; }
    .q{
      font-weight: 850;
      letter-spacing: -.2px;
      font-size: 14px;
    }
    .chev{
      width: 32px; height: 32px; border-radius: 12px;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.60);
      display:flex; align-items:center; justify-content:center;
      transition: transform .2s ease;
      flex:0 0 auto;
    }
    details[open] .chev{ transform: rotate(180deg); }
    .answer{
      padding: 0 8px 10px;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.75;
    }

    .comments{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 14px;
    }
    .comment{
      background: rgba(255,255,255,.70);
      border: 1px solid rgba(17,24,39,.10);
      border-radius: var(--radius-xl);
      box-shadow: var(--shadow2);
      padding: 16px;
      position: relative;
      overflow:hidden;
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .comment:hover{ transform: translateY(-2px); box-shadow: 0 22px 50px rgba(16,24,40,.10); }
    .comment::before{
      content:"";
      position:absolute;
      inset:-30px auto auto -30px;
      width: 120px; height: 120px;
      border-radius: 50%;
      background: radial-gradient(circle at 35% 35%, rgba(245,158,11,.18), transparent 60%),
                  radial-gradient(circle at 65% 65%, rgba(15,98,254,.16), transparent 60%);
      pointer-events:none;
    }
    .comment > *{ position: relative; z-index: 1; }
    .person{
      display:flex;
      align-items:center;
      gap: 12px;
      margin-bottom: 10px;
    }
    .avatar{
      width: 44px; height: 44px; border-radius: 18px;
      background: linear-gradient(135deg, rgba(15,98,254,.18), rgba(124,58,237,.16));
      border: 1px solid rgba(17,24,39,.10);
      display:flex; align-items:center; justify-content:center;
      font-weight: 950;
      color:#0b1220;
      user-select:none;
    }
    .person strong{ display:block; font-size: 14px; }
    .person span{ display:block; margin-top: 5px; font-size: 12px; color: var(--muted2); }

    .quote{
      color: var(--muted);
      font-size: 13px;
      line-height: 1.75;
      margin: 0;
    }

    .cases-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      align-items: start;
    }
    .case-card{
      background: rgba(255,255,255,.70);
      border: 1px solid rgba(17,24,39,.10);
      border-radius: var(--radius-xl);
      box-shadow: var(--shadow2);
      padding: 16px;
      overflow:hidden;
      position: relative;
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .case-card:hover{ transform: translateY(-2px); box-shadow: 0 22px 50px rgba(16,24,40,.10); }
    .case-top{
      display:flex;
      align-items:flex-start;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 10px;
    }
    .case-top h3{
      margin:0;
      font-size: 15px;
      letter-spacing: -.2px;
    }
    .case-meta{
      display:flex; gap: 8px; flex-wrap: wrap; justify-content:flex-end;
    }
    .chip{
      padding: 8px 10px;
      border-radius: 999px;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.60);
      font-size: 12px;
      color:#0b1220;
      font-weight: 750;
      user-select:none;
      white-space:nowrap;
    }
    .case-desc{
      margin: 0;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.7;
    }
    .case-actions{
      display:flex;
      gap: 10px;
      flex-wrap: wrap;
      margin-top: 12px;
      align-items:center;
    }
    .link{
      text-decoration:none;
      color: var(--primary);
      font-weight: 800;
      font-size: 13px;
      display:inline-flex;
      gap: 8px;
      align-items:center;
      padding: 10px 12px;
      border-radius: 999px;
      border: 1px solid rgba(15,98,254,.18);
      background: rgba(15,98,254,.06);
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
    }
    .link:hover{ transform: translateY(-1px); box-shadow: 0 18px 30px rgba(15,98,254,.14); background: rgba(15,98,254,.10); }

    .article-list{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      align-items: stretch;
    }
    .article-panel{
      background: rgba(255,255,255,.70);
      border: 1px solid rgba(17,24,39,.10);
      border-radius: var(--radius-xl);
      box-shadow: var(--shadow2);
      padding: 16px;
      overflow:hidden;
    }
    .article-panel h3{ margin: 0 0 10px; font-size: 15px; }
    .article-listing{
      display:flex;
      flex-direction: column;
      gap: 10px;
    }
    .article{
      display:flex;
      align-items:flex-start;
      justify-content: space-between;
      gap: 12px;
      padding: 12px 12px;
      border-radius: 16px;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.55);
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .article:hover{ transform: translateY(-2px); box-shadow: 0 18px 34px rgba(16,24,40,.10); }
    .article strong{ display:block; font-size: 13.5px; letter-spacing: -.2px; }
    .article span{ display:block; margin-top: 6px; color: var(--muted2); font-size: 12px; line-height: 1.5; }
    .article a{
      text-decoration:none;
      color: var(--primary);
      font-weight: 900;
      font-size: 13px;
      white-space: nowrap;
      padding-top: 2px;
    }

    .form-wrap{
      background: rgba(255,255,255,.68);
      border: 1px solid rgba(17,24,39,.10);
      border-radius: var(--radius-xl);
      box-shadow: var(--shadow2);
      padding: 16px;
    }
    .form-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }
    label{
      display:flex;
      flex-direction: column;
      gap: 8px;
      font-weight: 750;
      font-size: 13px;
      color:#0b1220;
    }
    input, select, textarea{
      width: 100%;
      border-radius: 14px;
      border: 1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.86);
      padding: 12px 12px;
      font-size: 14px;
      color:#0b1220;
      outline: none;
      transition: box-shadow .2s ease, border-color .2s ease, transform .2s ease;
    }
    textarea{ min-height: 120px; resize: vertical; }
    input:focus, select:focus, textarea:focus{
      border-color: rgba(15,98,254,.30);
      box-shadow: 0 0 0 6px var(--ring);
    }
    .form-actions{
      margin-top: 12px;
      display:flex;
      align-items:center;
      justify-content: space-between;
      gap: 12px;
      flex-wrap: wrap;
    }
    .fineprint{
      color: var(--muted2);
      font-size: 12px;
      line-height: 1.6;
      max-width: 60ch;
    }

    footer{
      margin-top: 10px;
      background: rgba(255,255,255,.55);
      border-top: 1px solid rgba(17,24,39,.10);
      padding: 18px 0 26px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns: 1.2fr .8fr;
      gap: 14px;
      align-items:start;
    }
    .footer-card{
      background: rgba(255,255,255,.70);
      border: 1px solid rgba(17,24,39,.10);
      border-radius: var(--radius-xl);
      box-shadow: 0 16px 34px rgba(16,24,40,.06);
      padding: 16px;
    }
    .footer-card h3{ margin:0 0 10px; font-size: 15px; }
    .footer-links{
      display:flex;
      flex-wrap: wrap;
      gap: 10px;
    }
    .footer-links a{
      text-decoration:none;
      border-radius: 999px;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.58);
      padding: 10px 12px;
      font-weight: 750;
      font-size: 12.5px;
      color:#0b1220;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
    }
    .footer-links a:hover{ transform: translateY(-2px); box-shadow: 0 18px 34px rgba(16,24,40,.10); background: rgba(255,255,255,.85); }
    .copyright{
      margin-top: 12px;
      color: var(--muted2);
      font-size: 12px;
      line-height: 1.7;
      display:flex;
      justify-content: space-between;
      gap: 10px;
      flex-wrap: wrap;
      padding-top: 12px;
      border-top: 1px solid rgba(17,24,39,.08);
    }

    .float-kefu{
      position: fixed;
      right: 14px;
      bottom: 86px;
      z-index: 60;
      display:flex;
      flex-direction: column;
      gap: 10px;
      align-items:flex-end;
      pointer-events:none;
    }
    .float-kefu .bubble{
      pointer-events:auto;
      background: rgba(255,255,255,.80);
      border: 1px solid rgba(17,24,39,.12);
      box-shadow: var(--shadow2);
      border-radius: 18px;
      padding: 10px;
      display:flex;
      gap: 12px;
      align-items:center;
      transform-origin: bottom right;
      opacity: 0;
      transform: translateY(10px) scale(.98);
      transition: opacity .25s ease, transform .25s ease;
    }
    .float-kefu.show .bubble{
      opacity: 1;
      transform: translateY(0) scale(1);
    }
    .kefu-text{
      display:flex;
      flex-direction: column;
      gap: 6px;
      padding-right: 4px;
    }
    .kefu-text strong{ font-size: 13px; }
    .kefu-text span{ font-size: 12px; color: var(--muted2); line-height: 1.35; }
    .kefu-qrcode{
      width: 66px; height: 66px;
      border-radius: 16px;
      overflow:hidden;
      border: 1px solid rgba(17,24,39,.10);
      background: #fff;
      flex:0 0 auto;
    }
    .kefu-qrcode img{
      width:100%;
      height:100%;
      object-fit: cover;
      display:block;
    }
    .kefu-btn{
      pointer-events:auto;
      width: 46px; height: 46px;
      border-radius: 18px;
      border: 1px solid rgba(17,24,39,.12);
      background: linear-gradient(135deg, rgba(15,98,254,.95), rgba(124,58,237,.92));
      box-shadow: 0 18px 35px rgba(124,58,237,.20);
      display:flex; align-items:center; justify-content:center;
      cursor:pointer;
      transition: transform .2s ease, box-shadow .2s ease;
      user-select:none;
    }
    .kefu-btn:hover{ transform: translateY(-2px); box-shadow: 0 22px 45px rgba(124,58,237,.24); }
    .kefu-btn svg{ width: 20px; height: 20px; color:#fff; }

    .to-top{
      position: fixed;
      right: 14px;
      bottom: 18px;
      z-index: 60;
      width: 46px; height: 46px;
      border-radius: 18px;
      border: 1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.78);
      box-shadow: var(--shadow2);
      display:flex; align-items:center; justify-content:center;
      cursor:pointer;
      opacity: 0;
      transform: translateY(10px);
      pointer-events:none;
      transition: opacity .25s ease, transform .25s ease, background .2s ease;
    }
    .to-top.show{
      opacity: 1;
      transform: translateY(0);
      pointer-events:auto;
    }
    .to-top:hover{ background: rgba(255,255,255,.95); }
    .to-top svg{ width: 20px; height: 20px; color:#111827; }

    .reveal{
      opacity: 0;
      transform: translateY(10px);
      transition: opacity .55s ease, transform .55s ease;
    }
    .reveal.show{
      opacity: 1;
      transform: translateY(0);
    }

    @media (max-width: 980px){
      .hero-grid{ grid-template-columns: 1fr; }
      .flow{ grid-template-columns: 1fr; }
      .flow .node{ padding: 14px; }
      .grid-3{ grid-template-columns: 1fr; }
      .grid-2{ grid-template-columns: 1fr; }
      .timeline{ grid-template-columns: 1fr; }
      .article-list{ grid-template-columns: 1fr; }
      .cases-grid{ grid-template-columns: 1fr; }
      .comments{ grid-template-columns: 1fr; }
      .footer-grid{ grid-template-columns: 1fr; }
      .metric-grid{ grid-template-columns: 1fr 1fr; }
      .brand img.ai-page-logo{ width: 130px; }
    }

    @media (max-width: 860px){
      nav .nav-links{ display:none; }
      .nav-cta{ display:none; }
      .hamburger{ display:flex; }
      .mobile-menu{ display:block; }
    }

    @media (max-width: 520px){
      .metric-grid{ grid-template-columns: 1fr; }
      .form-grid{ grid-template-columns: 1fr; }
      .brand{ min-width: unset; }
      .brand img.ai-page-logo{ width: 120px; }
    }