:root{
      --bg0:#fff7dc;
      --bg1:#ffffff;
      --text:#1f2937;
      --muted:#5b6778;
      --muted2:#7b8798;
      --line:rgba(31,41,55,.12);
      --card:#ffffff;
      --shadow: 0 14px 38px rgba(17,24,39,.10);
      --shadow2: 0 10px 22px rgba(17,24,39,.08);
      --yellow:#ffd11a;
      --yellow2:#ffbf00;
      --yellow3:#ffda4a;
      --accent:#1f6feb;
      --accent2:#0ea5e9;
      --ok:#16a34a;
      --warn:#f59e0b;
      --radius:18px;
      --radius2:24px;
      --container: 1120px;
    }
    *{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", Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
      color:var(--text);
      background:
        radial-gradient(1200px 540px at 20% -10%, rgba(255,209,26,.35), rgba(255,209,26,0) 60%),
        radial-gradient(900px 520px at 85% 0%, rgba(30,109,235,.16), rgba(30,109,235,0) 55%),
        linear-gradient(180deg, #fff6d4 0%, #ffffff 32%, #ffffff 100%);
    }
    a{color:inherit; text-decoration:none}
    .container{
      max-width:var(--container);
      margin:0 auto;
      padding:0 18px;
    }

    /* Top nav */
    header{
      position:sticky;
      top:0;
      z-index:30;
      backdrop-filter:saturate(160%) blur(10px);
      background: linear-gradient(180deg, rgba(255,247,220,.84), rgba(255,247,220,.68));
      border-bottom:1px solid rgba(31,41,55,.10);
    }
    .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: 220px;
    }
    .brand img.ai-page-logo{
      width:44px;
      height:44px;
      object-fit:contain;
      border-radius:12px;
      background:#fff;
      box-shadow:0 10px 26px rgba(31,41,55,.10);
      padding:6px;
      border:1px solid rgba(31,41,55,.08);
    }
    .brand .brand-text{
      display:flex; flex-direction:column; line-height:1.1;
    }
    .brand .brand-name{
      font-weight:800;
      letter-spacing:.2px;
      font-size:15px;
    }
    .brand .brand-sub{
      font-size:12px;
      color:var(--muted2);
      margin-top:4px;
      white-space:nowrap;
    }

    .nav-links{
      display:flex;
      align-items:center;
      gap:14px;
      flex-wrap:nowrap;
      overflow:hidden;
    }
    .nav-links a{
      font-size:13px;
      color:rgba(31,41,55,.86);
      padding:10px 10px;
      border-radius:12px;
      border:1px solid transparent;
      transition: transform .15s ease, background .15s ease, border-color .15s ease;
      white-space:nowrap;
    }
    .nav-links a:hover{
      background:rgba(255,209,26,.18);
      border-color:rgba(255,209,26,.35);
      transform: translateY(-1px);
    }
    .nav-cta{
      display:flex; gap:10px; align-items:center; justify-content:flex-end;
      min-width: 240px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      padding:11px 14px;
      border-radius:14px;
      border:1px solid rgba(31,41,55,.12);
      background:#fff;
      box-shadow:0 10px 22px rgba(17,24,39,.06);
      color:rgba(31,41,55,.92);
      font-weight:700;
      font-size:13px;
      transition: transform .15s ease, box-shadow .15s ease, background .15s ease, border-color .15s ease;
      user-select:none;
    }
    .btn:active{transform: translateY(1px)}
    .btn-primary{
      background: linear-gradient(180deg, #ffe45a 0%, var(--yellow) 100%);
      border-color: rgba(255,191,0,.55);
      box-shadow: 0 14px 30px rgba(255,191,0,.22);
    }
    .btn-primary:hover{box-shadow: 0 18px 42px rgba(255,191,0,.26); transform: translateY(-1px)}
    .btn-ghost{
      background: rgba(255,255,255,.70);
    }
    .nav-mobile{
      display:none;
      align-items:center;
      gap:10px;
    }
    .icon-btn{
      width:42px; height:42px;
      border-radius:14px;
      border:1px solid rgba(31,41,55,.12);
      background: rgba(255,255,255,.75);
      box-shadow:0 10px 22px rgba(17,24,39,.06);
      display:grid; place-items:center;
      transition: transform .15s ease, background .15s ease;
    }
    .icon-btn:hover{transform: translateY(-1px); background: rgba(255,255,255,.95)}
    .hamburger{
      width:18px; height:12px; position:relative;
    }
    .hamburger span{
      position:absolute; left:0; right:0;
      height:2px; background: rgba(31,41,55,.84); border-radius:4px;
      transition: transform .2s ease, top .2s ease, opacity .2s ease;
    }
    .hamburger span:nth-child(1){top:0}
    .hamburger span:nth-child(2){top:5px}
    .hamburger span:nth-child(3){top:10px}
    .menu-open .hamburger span:nth-child(1){top:5px; transform: rotate(45deg)}
    .menu-open .hamburger span:nth-child(2){opacity:0}
    .menu-open .hamburger span:nth-child(3){top:5px; transform: rotate(-45deg)}

    .mobile-panel{
      display:none;
      border-top:1px solid rgba(31,41,55,.10);
      padding:12px 0 16px;
    }
    .mobile-panel .mobile-links{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:10px;
      margin-top:10px;
    }
    .mobile-panel a{
      padding:12px 12px;
      border-radius:14px;
      border:1px solid rgba(31,41,55,.10);
      background: rgba(255,255,255,.78);
      font-weight:700;
      font-size:13px;
      color: rgba(31,41,55,.90);
      transition: transform .15s ease, box-shadow .15s ease;
    }
    .mobile-panel a:hover{
      transform: translateY(-1px);
      box-shadow:0 14px 30px rgba(17,24,39,.08);
    }

    /* Hero */
    .hero{
      padding:34px 0 18px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns: 1.12fr .88fr;
      gap:18px;
      align-items:stretch;
    }
    .hero-left{
      background:
        radial-gradient(1200px 420px at 0% 0%, rgba(255,209,26,.42), rgba(255,209,26,0) 55%),
        radial-gradient(900px 380px at 80% 20%, rgba(14,165,233,.18), rgba(14,165,233,0) 60%),
        linear-gradient(180deg, rgba(255,255,255,.72) 0%, rgba(255,255,255,.92) 100%);
      border:1px solid rgba(31,41,55,.10);
      border-radius: var(--radius2);
      padding:26px;
      box-shadow: var(--shadow2);
      position:relative;
      overflow:hidden;
    }
    .hero-left:before{
      content:"";
      position:absolute;
      inset:-2px;
      background:
        linear-gradient(120deg, rgba(255,209,26,.0) 0%, rgba(255,209,26,.25) 35%, rgba(31,41,55,.0) 65%);
      transform: translateX(-55%);
      animation: sheen 9s ease-in-out infinite;
      pointer-events:none;
    }
    @keyframes sheen{
      0%,45%{transform: translateX(-55%)}
      60%{transform: translateX(20%)}
      100%{transform: translateX(20%)}
    }
    .eyebrow{
      display:flex; gap:10px; flex-wrap:wrap;
      align-items:center;
      margin-bottom:12px;
      position:relative;
      z-index:1;
    }
    .pill{
      display:inline-flex; align-items:center; gap:8px;
      padding:8px 11px;
      border-radius:999px;
      border:1px solid rgba(31,41,55,.10);
      background: rgba(255,255,255,.78);
      box-shadow:0 10px 18px rgba(17,24,39,.06);
      font-weight:800;
      font-size:12px;
      color: rgba(31,41,55,.88);
    }
    .dot{
      width:9px; height:9px; border-radius:50%;
      background: linear-gradient(180deg, var(--yellow) 0%, var(--yellow2) 100%);
      box-shadow: 0 10px 22px rgba(255,191,0,.35);
    }
    .hero h1{
      margin:0;
      font-size:30px;
      line-height:1.18;
      letter-spacing:-.4px;
      position:relative;
      z-index:1;
    }
    .lead{
      margin:12px 0 18px;
      color: var(--muted);
      font-size:14px;
      line-height:1.7;
      position:relative;
      z-index:1;
      max-width:58ch;
    }
    .hero-actions{
      display:flex; gap:12px; flex-wrap:wrap;
      align-items:center;
      position:relative;
      z-index:1;
      margin-bottom:16px;
    }
    .mini-quick{
      display:flex; gap:10px; flex-wrap:wrap;
      align-items:center;
      position:relative;
      z-index:1;
    }
    .quick-item{
      flex:0 0 auto;
      display:flex; gap:10px; align-items:flex-start;
      padding:12px 12px;
      border-radius:16px;
      border:1px solid rgba(31,41,55,.10);
      background: rgba(255,255,255,.78);
      box-shadow:0 10px 18px rgba(17,24,39,.06);
      min-width: 190px;
      transition: transform .15s ease, box-shadow .15s ease;
    }
    .quick-item:hover{
      transform: translateY(-2px);
      box-shadow:0 16px 34px rgba(17,24,39,.10);
    }
    .q-ic{
      width:34px; height:34px;
      border-radius:12px;
      display:grid; place-items:center;
      background: linear-gradient(180deg, rgba(255,221,74,.9), rgba(255,191,0,.35));
      border:1px solid rgba(255,191,0,.35);
    }
    .q-t{
      display:flex; flex-direction:column; gap:4px;
    }
    .q-t strong{font-size:13px}
    .q-t span{font-size:12px; color:var(--muted2); line-height:1.3}

    .hero-right{
      display:flex;
      flex-direction:column;
      gap:12px;
    }
    .panel{
      background: rgba(255,255,255,.88);
      border:1px solid rgba(31,41,55,.10);
      border-radius: var(--radius2);
      box-shadow: var(--shadow2);
      padding:18px;
      overflow:hidden;
      position:relative;
    }
    .panel-title{
      display:flex; justify-content:space-between; align-items:flex-start; gap:10px;
      margin-bottom:12px;
    }
    .panel-title h2{
      margin:0;
      font-size:15px;
      letter-spacing:-.2px;
    }
    .subtag{
      font-size:12px;
      color: rgba(31,41,55,.78);
      border:1px solid rgba(31,41,55,.10);
      padding:7px 10px;
      border-radius:999px;
      background: rgba(255,247,220,.75);
      white-space:nowrap;
      font-weight:800;
    }
    .metric-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:10px;
    }
    .metric{
      padding:12px 12px;
      border-radius:16px;
      border:1px solid rgba(31,41,55,.10);
      background: rgba(255,255,255,.88);
      transition: transform .15s ease, box-shadow .15s ease;
    }
    .metric:hover{transform: translateY(-2px); box-shadow:0 16px 34px rgba(17,24,39,.10)}
    .metric strong{
      display:block;
      font-size:18px;
      letter-spacing:-.4px;
      margin-bottom:6px;
    }
    .metric span{
      display:block;
      font-size:12px;
      color:var(--muted2);
      line-height:1.3;
    }
    .divider{
      height:1px;
      background: rgba(31,41,55,.10);
      margin:12px 0;
    }
    .spark{
      display:flex;
      align-items:center;
      gap:10px;
      margin-top:6px;
    }
    .spark svg{flex:0 0 auto}
    .spark .spark-text strong{
      font-size:13px;
    }
    .spark .spark-text span{
      display:block;
      margin-top:4px;
      font-size:12px;
      color:var(--muted2);
      line-height:1.35;
    }

    .trust-strip{
      display:grid;
      grid-template-columns: 1fr;
      gap:10px;
    }
    .trust-item{
      display:flex;
      gap:12px;
      align-items:flex-start;
      padding:14px 14px;
      border-radius:18px;
      border:1px solid rgba(31,41,55,.10);
      background: rgba(255,255,255,.88);
      transition: transform .15s ease, box-shadow .15s ease;
    }
    .trust-item:hover{transform: translateY(-2px); box-shadow:0 16px 34px rgba(17,24,39,.10)}
    .badge{
      width:40px; height:40px;
      border-radius:16px;
      display:grid; place-items:center;
      background: linear-gradient(180deg, rgba(31,111,235,.18), rgba(14,165,233,.06));
      border:1px solid rgba(31,111,235,.18);
    }
    .trust-item strong{font-size:13px}
    .trust-item p{
      margin:6px 0 0;
      font-size:12px;
      color:var(--muted2);
      line-height:1.55;
    }

    /* Sections */
    main{padding:10px 0 44px}
    section{padding:34px 0}
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:16px;
      margin-bottom:16px;
    }
    .section-head h2{
      margin:0;
      font-size:22px;
      letter-spacing:-.35px;
    }
    .section-head p{
      margin:0;
      color:var(--muted);
      font-size:13px;
      line-height:1.6;
      max-width:62ch;
    }

    .cards{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap:12px;
    }
    .card{
      background: rgba(255,255,255,.86);
      border:1px solid rgba(31,41,55,.10);
      border-radius: var(--radius);
      padding:16px;
      box-shadow: 0 10px 22px rgba(17,24,39,.06);
      transition: transform .16s ease, box-shadow .16s ease;
      position:relative;
      overflow:hidden;
    }
    .card:hover{transform: translateY(-3px); box-shadow: 0 18px 44px rgba(17,24,39,.10)}
    .card h3{
      margin:10px 0 8px;
      font-size:15px;
      letter-spacing:-.2px;
    }
    .card p{
      margin:0;
      color:var(--muted);
      font-size:13px;
      line-height:1.7;
    }
    .ic-circle{
      width:42px; height:42px;
      border-radius:16px;
      display:grid; place-items:center;
      background: linear-gradient(180deg, rgba(255,209,26,.35), rgba(255,191,0,.08));
      border:1px solid rgba(255,191,0,.35);
    }
    .tag-row{
      display:flex; flex-wrap:wrap; gap:8px;
      margin-top:12px;
    }
    .tag{
      font-size:12px;
      font-weight:800;
      padding:7px 10px;
      border-radius:999px;
      background: rgba(255,247,220,.70);
      border:1px solid rgba(255,209,26,.28);
      color: rgba(31,41,55,.88);
    }

    /* Timeline */
    .timeline{
      display:grid;
      grid-template-columns: 1fr;
      gap:12px;
    }
    .step{
      display:flex;
      gap:12px;
      align-items:flex-start;
      padding:14px 14px;
      border-radius:18px;
      border:1px solid rgba(31,41,55,.10);
      background: rgba(255,255,255,.86);
      box-shadow: 0 10px 22px rgba(17,24,39,.06);
      transition: transform .16s ease, box-shadow .16s ease;
    }
    .step:hover{transform: translateY(-2px); box-shadow: 0 18px 44px rgba(17,24,39,.10)}
    .step .num{
      width:38px; height:38px;
      border-radius:16px;
      display:grid; place-items:center;
      background: linear-gradient(180deg, #ffe45a 0%, rgba(255,191,0,.22) 100%);
      border:1px solid rgba(255,191,0,.45);
      font-weight:900;
      letter-spacing:-.2px;
    }
    .step h3{margin:0; font-size:14px}
    .step p{margin:6px 0 0; color:var(--muted); font-size:13px; line-height:1.65}

    /* Compare table */
    .compare{
      background: rgba(255,255,255,.86);
      border:1px solid rgba(31,41,55,.10);
      border-radius: var(--radius2);
      box-shadow: var(--shadow2);
      overflow:hidden;
    }
    .compare-head{
      display:flex; gap:12px; justify-content:space-between; align-items:center;
      padding:16px 16px;
      border-bottom:1px solid rgba(31,41,55,.10);
      background:
        radial-gradient(700px 240px at 20% 0%, rgba(255,209,26,.30), rgba(255,209,26,0) 55%),
        linear-gradient(180deg, rgba(255,247,220,.70), rgba(255,255,255,.90));
    }
    .rating{
      display:flex; gap:10px; align-items:center;
    }
    .starbox{
      width:54px; height:54px;
      border-radius:22px;
      background: linear-gradient(180deg, rgba(255,209,26,.45), rgba(255,191,0,.12));
      border:1px solid rgba(255,191,0,.42);
      display:grid; place-items:center;
    }
    .rating .score{
      display:flex; flex-direction:column; line-height:1.1;
    }
    .rating .score strong{
      font-size:22px; letter-spacing:-.4px;
    }
    .rating .score span{
      font-size:12px; color:var(--muted2); margin-top:6px; font-weight:800;
    }
    .compare-head .recommend{
      text-align:right;
    }
    .recommend strong{display:block; font-size:14px}
    .recommend span{display:block; font-size:12px; color:var(--muted2); margin-top:6px; line-height:1.4}

    .table-wrap{overflow:auto}
    table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
      min-width: 860px;
    }
    th, td{
      padding:12px 12px;
      border-bottom:1px solid rgba(31,41,55,.10);
      vertical-align:top;
      font-size:13px;
    }
    th{
      text-align:left;
      background: rgba(255,247,220,.55);
      color: rgba(31,41,55,.92);
      font-weight:900;
      letter-spacing:-.2px;
      position:sticky;
      top:0;
      z-index:1;
    }
    tr:last-child td{border-bottom:none}
    .mark{
      display:inline-flex; align-items:center; gap:8px;
      padding:6px 10px;
      border-radius:999px;
      border:1px solid rgba(31,41,55,.10);
      background: rgba(255,255,255,.85);
      font-weight:900;
      font-size:12px;
      white-space:nowrap;
    }
    .mark.ok{
      border-color: rgba(22,163,74,.22);
      background: rgba(22,163,74,.08);
      color: rgba(22,163,74,.98);
    }
    .mark.mid{
      border-color: rgba(245,158,11,.22);
      background: rgba(245,158,11,.10);
      color: rgba(180,83,9,.98);
    }

    /* Comments */
    .comment-grid{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap:12px;
    }
    .comment{
      background: rgba(255,255,255,.86);
      border:1px solid rgba(31,41,55,.10);
      border-radius: var(--radius);
      padding:16px;
      box-shadow: 0 10px 22px rgba(17,24,39,.06);
      transition: transform .16s ease, box-shadow .16s ease;
      position:relative;
      overflow:hidden;
    }
    .comment:hover{transform: translateY(-3px); box-shadow: 0 18px 44px rgba(17,24,39,.10)}
    .comment .top{
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      margin-bottom:10px;
    }
    .avatar{
      width:42px; height:42px;
      border-radius:16px;
      border:1px solid rgba(31,41,55,.10);
      background:
        radial-gradient(22px 22px at 30% 30%, rgba(255,209,26,.55), rgba(255,209,26,0) 70%),
        linear-gradient(180deg, rgba(31,111,235,.12), rgba(14,165,233,.03));
      display:grid; place-items:center;
      font-weight:900;
      color: rgba(31,41,55,.84);
    }
    .who{
      display:flex; gap:10px; align-items:center;
    }
    .who strong{font-size:13px}
    .who span{display:block; margin-top:4px; font-size:12px; color:var(--muted2)}
    .stars{
      display:flex; gap:3px; align-items:center;
      color: rgba(255,191,0,.95);
      font-weight:900;
      letter-spacing:-.1px;
      font-size:13px;
      white-space:nowrap;
    }
    .comment p{
      margin:0;
      color:var(--muted);
      font-size:13px;
      line-height:1.75;
    }

    /* Cases + articles */
    .case-grid{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap:12px;
    }
    .case{
      border-radius: var(--radius2);
      border:1px solid rgba(31,41,55,.10);
      background: rgba(255,255,255,.86);
      box-shadow: 0 10px 22px rgba(17,24,39,.06);
      overflow:hidden;
      transition: transform .16s ease, box-shadow .16s ease;
      display:flex; flex-direction:column;
      min-height: 240px;
    }
    .case:hover{transform: translateY(-3px); box-shadow: 0 18px 44px rgba(17,24,39,.10)}
    .case-media{
      padding:12px;
      background: linear-gradient(180deg, rgba(255,247,220,.65), rgba(255,255,255,.92));
      border-bottom:1px solid rgba(31,41,55,.08);
    }
    .case-media .thumb{
      border-radius:16px;
      border:1px solid rgba(31,41,55,.10);
      background: rgba(255,255,255,.85);
      overflow:hidden;
      aspect-ratio: 16/10;
      display:block;
      width:100%;
      position:relative;
    }
    .case-media img{
      width:100%; height:100%;
      object-fit: cover;
      display:block;
      transform: scale(1.01);
      transition: transform .25s ease;
    }
    .case:hover .case-media img{transform: scale(1.05)}
    .case-body{
      padding:14px 14px 16px;
      display:flex; flex-direction:column; gap:10px;
      flex:1;
    }
    .case-body h3{
      margin:0;
      font-size:15px;
      letter-spacing:-.2px;
    }
    .case-body p{
      margin:0;
      color:var(--muted);
      font-size:13px;
      line-height:1.7;
    }
    .case-foot{
      margin-top:auto;
      display:flex;
      gap:8px;
      flex-wrap:wrap;
      align-items:center;
      justify-content:space-between;
    }
    .linkish{
      display:inline-flex; align-items:center; gap:8px;
      font-weight:900;
      font-size:13px;
      color: rgba(31,41,55,.92);
      padding:8px 10px;
      border-radius:999px;
      border:1px solid rgba(31,41,55,.10);
      background: rgba(255,255,255,.82);
      transition: transform .15s ease, background .15s ease;
    }
    .linkish:hover{transform: translateY(-1px); background: rgba(255,209,26,.16)}
    .badge-small{
      font-size:12px;
      color: var(--muted2);
      font-weight:900;
      border:1px solid rgba(31,41,55,.10);
      background: rgba(255,247,220,.60);
      padding:7px 10px;
      border-radius:999px;
      white-space:nowrap;
    }

    /* Pricing reference blocks */
    .grid-2{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:12px;
      align-items:stretch;
    }
    .side-card{
      background: rgba(255,255,255,.86);
      border:1px solid rgba(31,41,55,.10);
      border-radius: var(--radius2);
      box-shadow: var(--shadow2);
      padding:16px;
      overflow:hidden;
      position:relative;
    }
    .side-card:after{
      content:"";
      position:absolute;
      inset:auto -60px -70px auto;
      width:180px; height:180px;
      background: radial-gradient(circle at 30% 30%, rgba(255,209,26,.42), rgba(255,209,26,0) 65%);
      pointer-events:none;
    }
    .side-card h3{margin:0; font-size:16px; letter-spacing:-.25px}
    .side-card p{margin:8px 0 0; color:var(--muted); font-size:13px; line-height:1.7}
    .form-quick{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:10px;
      margin-top:12px;
      position:relative;
      z-index:1;
    }
    .field{
      display:flex; flex-direction:column; gap:7px;
    }
    label{
      font-size:12px;
      color: rgba(31,41,55,.86);
      font-weight:900;
      letter-spacing:-.1px;
    }
    input, select, textarea{
      width:100%;
      border:1px solid rgba(31,41,55,.14);
      background: rgba(255,255,255,.86);
      border-radius:14px;
      padding:11px 12px;
      font-size:13px;
      color: rgba(31,41,55,.92);
      outline:none;
      transition: border-color .15s ease, box-shadow .15s ease;
    }
    textarea{min-height: 110px; resize: vertical}
    input:focus, select:focus, textarea:focus{
      border-color: rgba(255,191,0,.65);
      box-shadow: 0 0 0 4px rgba(255,191,0,.20);
    }
    .form-actions{
      display:flex; gap:10px; align-items:center; justify-content:space-between;
      margin-top:12px;
      position:relative;
      z-index:1;
      flex-wrap:wrap;
    }
    .hint{
      color: var(--muted2);
      font-size:12px;
      line-height:1.4;
      max-width: 40ch;
    }
    .btn-submit{
      border-radius:16px;
      padding:12px 14px;
      font-size:14px;
    }

    /* FAQ */
    .faq-grid{
      display:grid;
      grid-template-columns: 1fr;
      gap:10px;
    }
    details.faq{
      background: rgba(255,255,255,.86);
      border:1px solid rgba(31,41,55,.10);
      border-radius: var(--radius2);
      padding:14px 14px;
      box-shadow: 0 10px 22px rgba(17,24,39,.06);
      transition: transform .15s ease, box-shadow .15s ease;
    }
    details.faq[open]{
      box-shadow: 0 18px 44px rgba(17,24,39,.10);
      transform: translateY(-2px);
    }
    details.faq summary{
      cursor:pointer;
      list-style:none;
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:12px;
      font-weight:950;
      letter-spacing:-.2px;
      font-size:14px;
      outline:none;
    }
    details.faq summary::-webkit-details-marker{display:none}
    .plus{
      width:34px; height:34px;
      border-radius:14px;
      border:1px solid rgba(31,41,55,.12);
      background: rgba(255,247,220,.70);
      display:grid; place-items:center;
      flex:0 0 auto;
      transition: transform .18s ease, background .15s ease;
    }
    details.faq[open] .plus{transform: rotate(45deg); background: rgba(255,209,26,.18)}
    .faq .content{
      margin-top:10px;
      color: var(--muted);
      font-size:13px;
      line-height:1.75;
    }

    /* Labels cloud */
    .cloud{
      display:flex; flex-wrap:wrap; gap:10px;
    }
    .chip{
      padding:10px 12px;
      border-radius:999px;
      border:1px solid rgba(31,41,55,.10);
      background: rgba(255,255,255,.86);
      box-shadow: 0 10px 22px rgba(17,24,39,.05);
      font-weight:900;
      font-size:12px;
      color: rgba(31,41,55,.86);
      transition: transform .15s ease, background .15s ease;
      cursor:pointer;
      user-select:none;
    }
    .chip:hover{transform: translateY(-2px); background: rgba(255,209,26,.16)}
    .chip.active{
      border-color: rgba(255,191,0,.55);
      background: rgba(255,209,26,.22);
      color: rgba(31,41,55,.95);
    }

    /* Article list */
    .article-list{
      display:grid;
      grid-template-columns: 1fr;
      gap:10px;
    }
    .article{
      display:flex;
      gap:12px;
      align-items:flex-start;
      padding:14px 14px;
      border-radius: var(--radius2);
      border:1px solid rgba(31,41,55,.10);
      background: rgba(255,255,255,.86);
      box-shadow: 0 10px 22px rgba(17,24,39,.06);
      transition: transform .16s ease, box-shadow .16s ease;
    }
    .article:hover{transform: translateY(-2px); box-shadow: 0 18px 44px rgba(17,24,39,.10)}
    .article .thumb{
      width:62px; height:62px;
      border-radius:20px;
      border:1px solid rgba(31,41,55,.10);
      background:
        radial-gradient(circle at 30% 30%, rgba(255,209,26,.55), rgba(255,209,26,0) 60%),
        linear-gradient(180deg, rgba(31,111,235,.10), rgba(14,165,233,.03));
      display:grid; place-items:center;
      flex:0 0 auto;
      font-weight:950;
      color: rgba(31,41,55,.86);
    }
    .article .meta{
      flex:1;
      display:flex;
      flex-direction:column;
      gap:6px;
      min-width: 0;
    }
    .article .meta strong{
      font-size:14px;
      letter-spacing:-.2px;
    }
    .article .meta span{
      font-size:12px;
      color: var(--muted2);
      line-height:1.4;
    }
    .article .goto{
      flex:0 0 auto;
      margin-left:auto;
      white-space:nowrap;
    }

    /* Footer */
    footer{
      background: linear-gradient(180deg, rgba(255,247,220,.70), rgba(255,255,255,.92));
      border-top:1px solid rgba(31,41,55,.10);
      padding:22px 0 28px;
    }
    .footer-wrap{
      display:grid;
      grid-template-columns: 1.1fr .9fr;
      gap:16px;
      align-items:start;
    }
    .foot-card{
      border:1px solid rgba(31,41,55,.10);
      background: rgba(255,255,255,.86);
      border-radius: var(--radius2);
      box-shadow: 0 10px 22px rgba(17,24,39,.06);
      padding:16px;
    }
    .foot-title{
      display:flex; align-items:center; gap:10px;
      margin-bottom:10px;
    }
    .foot-title strong{font-size:14px}
    .foot-card p{
      margin:0;
      color: var(--muted);
      font-size:13px;
      line-height:1.7;
    }
    .footer-links{
      display:flex; flex-wrap:wrap; gap:10px;
      margin-top:12px;
    }
    .footer-links a{
      padding:9px 11px;
      border-radius:999px;
      border:1px solid rgba(31,41,55,.10);
      background: rgba(255,255,255,.86);
      font-weight:900;
      font-size:12px;
      color: rgba(31,41,55,.86);
      transition: transform .15s ease, background .15s ease;
    }
    .footer-links a:hover{transform: translateY(-2px); background: rgba(255,209,26,.16)}
    .copy{
      margin-top:12px;
      font-size:12px;
      color: var(--muted2);
      line-height:1.5;
      font-weight:800;
    }
    .foot-right{
      display:grid;
      grid-template-columns: 1fr;
      gap:12px;
    }
    .contact-mini{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:10px;
      margin-top:10px;
    }
    .contact-mini .item{
      border:1px solid rgba(31,41,55,.10);
      background: rgba(255,255,255,.86);
      border-radius:18px;
      padding:12px;
    }
    .contact-mini .item strong{font-size:13px}
    .contact-mini .item span{
      display:block;
      margin-top:6px;
      font-size:12px;
      color: var(--muted2);
      line-height:1.4;
      word-break: break-word;
    }
    .bottom-note{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:12px;
      margin-top:14px;
      color: var(--muted2);
      font-size:12px;
      font-weight:900;
      flex-wrap:wrap;
    }

    /* Floating客服 */
    .float-kefu{
      position:fixed;
      right:16px;
      bottom:16px;
      z-index:50;
      display:flex;
      flex-direction:column;
      gap:10px;
      align-items:flex-end;
    }
    .kefu-btn{
      display:flex;
      align-items:center;
      gap:10px;
      padding:12px 14px;
      border-radius:18px;
      background: rgba(255,255,255,.86);
      border:1px solid rgba(31,41,55,.12);
      box-shadow: 0 18px 44px rgba(17,24,39,.16);
      cursor:pointer;
      user-select:none;
      transition: transform .15s ease, box-shadow .15s ease;
      max-width: 240px;
    }
    .kefu-btn:hover{transform: translateY(-2px)}
    .kefu-btn .kic{
      width:40px; height:40px;
      border-radius:16px;
      display:grid; place-items:center;
      background: linear-gradient(180deg, rgba(255,209,26,.50), rgba(255,191,0,.14));
      border:1px solid rgba(255,191,0,.42);
      flex:0 0 auto;
    }
    .kefu-btn .ktxt{
      display:flex; flex-direction:column; line-height:1.1;
      min-width:0;
    }
    .kefu-btn .ktxt strong{font-size:13px}
    .kefu-btn .ktxt span{
      margin-top:6px;
      font-size:12px; color:var(--muted2);
      white-space:nowrap; overflow:hidden; text-overflow:ellipsis;
    }
    .kefu-pop{
      display:none;
      width:250px;
      border-radius:22px;
      border:1px solid rgba(31,41,55,.12);
      background: rgba(255,255,255,.92);
      box-shadow: 0 26px 62px rgba(17,24,39,.18);
      overflow:hidden;
    }
    .kefu-pop .head{
      padding:12px 12px;
      background: linear-gradient(180deg, rgba(255,247,220,.75), rgba(255,255,255,.92));
      border-bottom:1px solid rgba(31,41,55,.10);
      display:flex; align-items:center; justify-content:space-between; gap:12px;
    }
    .kefu-pop .head strong{font-size:13px}
    .kefu-pop .close{
      width:36px; height:36px;
      border-radius:14px;
      border:1px solid rgba(31,41,55,.12);
      background: rgba(255,255,255,.86);
      display:grid; place-items:center;
      cursor:pointer;
      user-select:none;
      transition: transform .15s ease;
    }
    .kefu-pop .close:hover{transform: translateY(-1px)}
    .kefu-pop .body{
      padding:12px;
      display:flex;
      flex-direction:column;
      gap:10px;
    }
    .kefu-pop img{
      width:100%;
      height:auto;
      border-radius:18px;
      border:1px solid rgba(31,41,55,.10);
      background:#fff;
      display:block;
    }
    .kefu-pop .tip{
      font-size:12px;
      color: var(--muted2);
      line-height:1.5;
      font-weight:900;
    }

    /* Back to top */
    .to-top{
      position:fixed;
      right:16px;
      bottom:92px;
      z-index:49;
      width:44px; height:44px;
      border-radius:18px;
      border:1px solid rgba(31,41,55,.12);
      background: rgba(255,255,255,.86);
      box-shadow: 0 18px 44px rgba(17,24,39,.14);
      display:grid; place-items:center;
      cursor:pointer;
      transition: transform .15s ease, opacity .2s ease;
      opacity:0;
      pointer-events:none;
    }
    .to-top.show{opacity:1; pointer-events:auto}
    .to-top:hover{transform: translateY(-2px)}

    /* Reveal animations */
    .reveal{
      opacity:0;
      transform: translateY(10px);
      transition: opacity .6s ease, transform .6s ease;
    }
    .reveal.show{
      opacity:1;
      transform: translateY(0);
    }
    @media (prefers-reduced-motion: reduce){
      .reveal{transition:none}
      html{scroll-behavior:auto}
      .hero-left:before{animation:none}
    }

    /* Responsive */
    @media (max-width: 980px){
      .hero-grid{grid-template-columns:1fr; }
      .nav-links{display:none}
      .nav-cta{min-width:auto}
      .nav-mobile{display:flex}
      .mobile-panel{display:block}
      .cards{grid-template-columns:1fr}
      .comment-grid{grid-template-columns:1fr}
      .case-grid{grid-template-columns:1fr}
      .grid-2{grid-template-columns:1fr}
      .footer-wrap{grid-template-columns:1fr}
      .contact-mini{grid-template-columns:1fr}
    }
    @media (max-width: 520px){
      .brand{min-width:auto}
      .brand .brand-sub{display:none}
      .hero-left{padding:18px}
      .hero h1{font-size:24px}
      .quick-item{min-width: 0; width:100%}
      .metric-grid{grid-template-columns: 1fr 1fr}
      .form-quick{grid-template-columns:1fr}
      .float-kefu{right:12px; bottom:12px}
      .kefu-pop{width:220px}
      .to-top{right:12px; bottom:86px}
      table{min-width: 760px}
    }
    .skip{
      position:absolute;
      left:-999px;
      top:auto;
      width:1px; height:1px;
      overflow:hidden;
    }
    .skip:focus{
      left:16px; top:12px;
      width:auto; height:auto;
      padding:10px 12px;
      border-radius:14px;
      background:#fff;
      border:1px solid rgba(31,41,55,.14);
      z-index:100;
    }