:root{
      --ink:#0f1424;
      --ink-2:#1c2440;
      --brand:#ff3d2e;
      --brand-2:#ff8a00;
      --accent:#00e0b8;
      --blue:#2f5bff;
      --violet:#7a3cff;
      --bg:#f6f7fb;
      --card:#ffffff;
      --line:#e6e9f2;
      --muted:#5c6479;
      --radius:16px;
      --shadow:0 12px 34px rgba(20,30,60,.09);
    }
    *{margin:0;padding:0;box-sizing:border-box;}
    html{scroll-behavior:smooth;}
    body{
      font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,sans-serif;
      color:var(--ink);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased;
    }
    img{max-width:100%;height:auto;display:block;}
    a{color:inherit;text-decoration:none;}
    .wrap{width:min(1200px,92%);margin:0 auto;}
    section{padding:78px 0;position:relative;}
    .sec-head{max-width:760px;margin:0 auto 46px;text-align:center;}
    .eyebrow{
      display:inline-block;font-size:13px;font-weight:700;letter-spacing:2px;
      color:var(--brand);background:rgba(255,61,46,.09);padding:6px 16px;border-radius:999px;margin-bottom:16px;
    }
    .sec-head h2{font-size:clamp(24px,3.4vw,38px);line-height:1.25;letter-spacing:-.5px;font-weight:800;}
    .sec-head h2 em{font-style:normal;color:var(--brand);}
    .sec-head p{color:var(--muted);margin-top:14px;font-size:15.5px;}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      padding:13px 28px;border-radius:999px;font-weight:700;font-size:15px;
      border:none;cursor:pointer;transition:.25s;white-space:nowrap;
    }
    .btn-primary{background:linear-gradient(120deg,var(--brand),var(--brand-2));color:#fff;box-shadow:0 10px 24px rgba(255,61,46,.32);}
    .btn-primary:hover{transform:translateY(-3px);box-shadow:0 16px 32px rgba(255,61,46,.4);}
    .btn-ghost{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.35);}
    .btn-ghost:hover{background:rgba(255,255,255,.22);transform:translateY(-3px);}
    .btn-dark{background:var(--ink);color:#fff;}
    .btn-dark:hover{transform:translateY(-3px);box-shadow:0 12px 26px rgba(15,20,36,.3);}
    .btn-line{background:#fff;color:var(--ink);border:1.5px solid var(--line);}
    .btn-line:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-3px);}

    /* ---------- 顶部导航 ---------- */
    .topbar{background:var(--ink);color:#c8cede;font-size:12.5px;padding:7px 0;}
    .topbar .wrap{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;}
    .topbar a{color:#c8cede;transition:.2s;}
    .topbar a:hover{color:#fff;}
    .topbar .tb-right{display:flex;gap:18px;flex-wrap:wrap;}
    header.site-nav{
      position:sticky;top:0;z-index:900;background:rgba(255,255,255,.94);
      backdrop-filter:blur(12px);border-bottom:1px solid var(--line);
    }
    .nav-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;height:70px;}
    .logo-box{display:flex;align-items:center;gap:10px;flex-shrink:0;}
    .ai-page-logo{height:38px;width:auto;max-width:100%;}
    .logo-text{font-weight:800;font-size:19px;letter-spacing:.5px;}
    .logo-text span{color:var(--brand);}
    .nav-links{display:flex;align-items:center;gap:0;list-style:none;flex-wrap:wrap;}
    .nav-links a{
      display:block;padding:9px 13px;font-size:14.5px;font-weight:600;color:var(--ink-2);
      border-radius:8px;transition:.2s;white-space:nowrap;
    }
    .nav-links a:hover{color:var(--brand);background:rgba(255,61,46,.07);}
    .nav-cta{display:flex;align-items:center;gap:10px;flex-shrink:0;}
    .nav-cta .btn{padding:10px 20px;font-size:14px;}
    .burger{display:none;background:none;border:none;cursor:pointer;padding:8px;flex-direction:column;gap:5px;}
    .burger span{display:block;width:24px;height:2.5px;background:var(--ink);border-radius:2px;transition:.3s;}
    .burger.open span:nth-child(1){transform:translateY(7.5px) rotate(45deg);}
    .burger.open span:nth-child(2){opacity:0;}
    .burger.open span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg);}

    /* ---------- Hero ---------- */
    .hero{
      position:relative;overflow:hidden;color:#fff;padding:92px 0 86px;
      background:
        radial-gradient(circle at 82% 12%,rgba(255,138,0,.42),transparent 42%),
        radial-gradient(circle at 12% 88%,rgba(122,60,255,.45),transparent 46%),
        radial-gradient(circle at 50% 50%,rgba(0,224,184,.14),transparent 60%),
        linear-gradient(135deg,#10152b 0%,#1b1f3c 55%,#231a3d 100%);
    }
    .hero::before{
      content:"";position:absolute;inset:0;pointer-events:none;
      background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
      background-size:56px 56px;mask-image:radial-gradient(circle at 50% 40%,#000 30%,transparent 78%);
    }
    .hero-grid{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:52px;align-items:center;}
    .hero-badge{
      display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
      background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);
      padding:7px 16px;border-radius:999px;margin-bottom:22px;letter-spacing:.5px;
    }
    .hero-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent);animation:pulse 1.8s infinite;}
    @keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.45;transform:scale(.8);}}
    .hero h1{
      font-size:clamp(30px,4.6vw,54px);line-height:1.18;font-weight:900;letter-spacing:-1px;margin-bottom:20px;
    }
    .hero h1 em{
      font-style:normal;
      background:linear-gradient(100deg,#ff8a00,#ff3d2e 55%,#ffb703);
      -webkit-background-clip:text;background-clip:text;color:transparent;
    }
    .hero-sub{font-size:16.5px;color:#c9d0e4;max-width:560px;margin-bottom:16px;}
    .hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:30px;}
    .hero-tags span{
      font-size:12.5px;font-weight:600;padding:5px 13px;border-radius:999px;
      background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);color:#dbe1f2;
    }
    .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
    .hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;max-width:600px;}
    .hero-stats .hs{
      background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
      border-radius:14px;padding:14px 12px;text-align:center;transition:.25s;
    }
    .hero-stats .hs:hover{transform:translateY(-4px);background:rgba(255,255,255,.1);}
    .hero-stats b{display:block;font-size:22px;font-weight:900;color:#fff;line-height:1.2;}
    .hero-stats small{font-size:12px;color:#a9b2cb;}
    .hero-visual{position:relative;height:100%;min-height:380px;display:flex;flex-direction:column;gap:14px;justify-content:center;}
    .glass-card{
      background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);
      border-radius:18px;padding:18px 20px;backdrop-filter:blur(10px);
      animation:floatY 6s ease-in-out infinite;
    }
    .glass-card:nth-child(2){animation-delay:1.4s;margin-left:34px;}
    .glass-card:nth-child(3){animation-delay:2.6s;margin-left:12px;}
    @keyframes floatY{0%,100%{transform:translateY(0);}50%{transform:translateY(-10px);}}
    .glass-card .gc-top{display:flex;align-items:center;gap:10px;margin-bottom:10px;}
    .gc-icon{
      width:34px;height:34px;border-radius:10px;display:grid;place-items:center;font-size:17px;
      background:linear-gradient(135deg,var(--brand),var(--brand-2));flex-shrink:0;
    }
    .glass-card h4{font-size:15px;font-weight:800;color:#fff;}
    .glass-card p{font-size:13px;color:#b6bed6;}
    .hero-shape{position:absolute;border-radius:50%;filter:blur(60px);opacity:.5;pointer-events:none;}
    .hs-1{width:300px;height:300px;background:var(--brand);top:-90px;right:-60px;}
    .hs-2{width:260px;height:260px;background:var(--violet);bottom:-100px;left:-80px;}

    /* ---------- 数据指标 ---------- */
    .metrics{padding:0;margin-top:-46px;position:relative;z-index:5;}
    .metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
    .metric{
      background:var(--card);border-radius:var(--radius);padding:26px 22px;text-align:center;
      box-shadow:var(--shadow);border:1px solid var(--line);transition:.28s;
    }
    .metric:hover{transform:translateY(-6px);border-color:rgba(255,61,46,.4);}
    .metric b{font-size:clamp(26px,3vw,34px);font-weight:900;display:block;line-height:1.15;
      background:linear-gradient(100deg,var(--brand),var(--brand-2));-webkit-background-clip:text;background-clip:text;color:transparent;}
    .metric span{font-size:14px;color:var(--muted);font-weight:600;}

    /* ---------- 关于我们 ---------- */
    .about-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
    .about-text h2{font-size:clamp(23px,3vw,34px);font-weight:900;line-height:1.3;margin-bottom:18px;}
    .about-text h2 em{font-style:normal;color:var(--brand);}
    .about-text p{color:var(--muted);margin-bottom:16px;font-size:15.5px;}
    .about-list{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:22px;}
    .about-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;font-weight:600;}
    .about-list li::before{
      content:"✓";flex-shrink:0;width:20px;height:20px;border-radius:50%;
      background:rgba(0,224,184,.16);color:#00a98a;font-size:12px;display:grid;place-items:center;font-weight:900;margin-top:3px;
    }
    .about-media{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
    .about-media figure{overflow:hidden;border-radius:var(--radius);box-shadow:var(--shadow);}
    .about-media img{width:100%;height:100%;object-fit:cover;transition:.45s;}
    .about-media figure:hover img{transform:scale(1.05);}
    .about-media figure:first-child{grid-row:span 2;}
    .about-media figure:first-child img{height:100%;min-height:330px;}
    .about-media figure:nth-child(2) img,.about-media figure:nth-child(3) img{height:157px;}

    /* ---------- 服务能力 ---------- */
    .services{background:linear-gradient(180deg,#fff,#f2f4fa);}
    .svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
    .svc-card{
      background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
      padding:28px 24px;transition:.28s;position:relative;overflow:hidden;
    }
    .svc-card::after{
      content:"";position:absolute;left:0;top:0;height:4px;width:0;
      background:linear-gradient(90deg,var(--brand),var(--brand-2));transition:.35s;
    }
    .svc-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:transparent;}
    .svc-card:hover::after{width:100%;}
    .svc-icon{
      width:50px;height:50px;border-radius:14px;display:grid;place-items:center;font-size:23px;margin-bottom:16px;
      background:linear-gradient(135deg,rgba(255,61,46,.13),rgba(255,138,0,.14));color:var(--brand);
    }
    .svc-card h3{font-size:18px;font-weight:800;margin-bottom:9px;}
    .svc-card p{font-size:14px;color:var(--muted);}
    .svc-more{display:inline-block;margin-top:14px;font-size:13.5px;font-weight:700;color:var(--brand);}
    .svc-more:hover{text-decoration:underline;}

    /* ---------- 一站式制作 ---------- */
    .scenario-tabs{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:34px;}
    .scenario-tabs button{
      padding:9px 18px;border-radius:999px;border:1.5px solid var(--line);background:#fff;
      font-size:13.5px;font-weight:700;color:var(--muted);cursor:pointer;transition:.22s;font-family:inherit;
    }
    .scenario-tabs button.active,.scenario-tabs button:hover{
      background:var(--ink);border-color:var(--ink);color:#fff;transform:translateY(-2px);
    }
    .scenario-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
    .sc-card{
      background:#fff;border-radius:14px;padding:22px 20px;border:1px solid var(--line);
      transition:.26s;display:flex;flex-direction:column;
    }
    .sc-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:rgba(47,91,255,.35);}
    .sc-card .sc-tag{
      align-self:flex-start;font-size:11.5px;font-weight:800;padding:3px 10px;border-radius:6px;margin-bottom:12px;
      background:rgba(47,91,255,.1);color:var(--blue);
    }
    .sc-card:nth-child(3n) .sc-tag{background:rgba(122,60,255,.1);color:var(--violet);}
    .sc-card:nth-child(3n+1) .sc-tag{background:rgba(255,61,46,.1);color:var(--brand);}
    .sc-card h4{font-size:16px;font-weight:800;margin-bottom:8px;}
    .sc-card p{font-size:13.5px;color:var(--muted);flex:1;}

    /* ---------- 行业方案 ---------- */
    .industry{background:var(--ink);color:#fff;}
    .industry .sec-head h2{color:#fff;}
    .industry .sec-head p{color:#a9b2cb;}
    .industry .eyebrow{background:rgba(255,138,0,.16);color:#ffb703;}
    .ind-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
    .ind-card{
      background:linear-gradient(160deg,rgba(255,255,255,.08),rgba(255,255,255,.03));
      border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:26px 22px;transition:.28s;
    }
    .ind-card:hover{transform:translateY(-6px);border-color:rgba(255,138,0,.5);background:linear-gradient(160deg,rgba(255,138,0,.14),rgba(255,255,255,.03));}
    .ind-card .ind-no{font-size:13px;font-weight:900;color:var(--brand-2);letter-spacing:2px;margin-bottom:10px;}
    .ind-card h4{font-size:17px;font-weight:800;margin-bottom:8px;}
    .ind-card p{font-size:13.5px;color:#a9b2cb;}

    /* ---------- 服务网络 ---------- */
    .net-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
    .net-card{
      background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:.28s;
      border-top:4px solid var(--brand);
    }
    .net-card:nth-child(2){border-top-color:var(--violet);}
    .net-card:nth-child(3){border-top-color:var(--accent);}
    .net-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);}
    .net-card h4{font-size:17px;font-weight:800;margin-bottom:8px;}
    .net-card p{font-size:14px;color:var(--muted);}

    /* ---------- 标准流程 ---------- */
    .flow{background:linear-gradient(180deg,#fff,#f6f7fb);}
    .flow-steps{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;counter-reset:flow;}
    .flow-step{position:relative;background:#fff;border-radius:var(--radius);padding:26px 20px 22px;border:1px solid var(--line);transition:.26s;counter-increment:flow;}
    .flow-step:hover{transform:translateY(-6px);box-shadow:var(--shadow);}
    .flow-step::before{
      content:counter(flow,decimal-leading-zero);font-size:12px;font-weight:900;color:var(--brand);
      display:block;margin-bottom:12px;letter-spacing:1px;
    }
    .flow-step::after{
      content:"";position:absolute;top:34px;right:-14px;width:12px;height:12px;border-top:2px solid var(--line);border-right:2px solid var(--line);transform:rotate(45deg);
    }
    .flow-step:last-child::after{display:none;}
    .flow-step h4{font-size:16px;font-weight:800;margin-bottom:7px;}
    .flow-step p{font-size:13.5px;color:var(--muted);}
    .timeline{margin-top:52px;background:#fff;border-radius:var(--radius);padding:34px 30px;border:1px solid var(--line);box-shadow:var(--shadow);}
    .timeline h3{font-size:19px;font-weight:900;margin-bottom:24px;}
    .tl{position:relative;padding-left:26px;border-left:2px dashed var(--line);}
    .tl-item{position:relative;padding-bottom:22px;}
    .tl-item:last-child{padding-bottom:0;}
    .tl-item::before{
      content:"";position:absolute;left:-34px;top:6px;width:14px;height:14px;border-radius:50%;
      background:var(--brand);box-shadow:0 0 0 4px rgba(255,61,46,.16);
    }
    .tl-item b{font-size:15px;font-weight:800;}
    .tl-item p{font-size:13.5px;color:var(--muted);margin-top:4px;}

    /* ---------- 案例中心 ---------- */
    .case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
    .case-card{background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);transition:.3s;}
    .case-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);}
    .case-card img{width:100%;height:210px;object-fit:cover;transition:.45s;}
    .case-card:hover img{transform:scale(1.06);}
    .case-body{padding:22px;}
    .case-body .case-tag{font-size:12px;font-weight:800;color:var(--brand);}
    .case-body h4{font-size:17px;font-weight:800;margin:8px 0 8px;}
    .case-body p{font-size:13.5px;color:var(--muted);}

    /* ---------- 对比评测 ---------- */
    .compare{background:linear-gradient(180deg,#fff,#f2f4fa);}
    .score-box{
      display:grid;grid-template-columns:.9fr 1.1fr;gap:28px;margin-bottom:38px;align-items:stretch;
    }
    .score-main{
      background:linear-gradient(135deg,#1b1f3c,#2a1d46);color:#fff;border-radius:var(--radius);
      padding:38px 32px;display:flex;flex-direction:column;justify-content:center;position:relative;overflow:hidden;
    }
    .score-main::before{content:"";position:absolute;width:220px;height:220px;border-radius:50%;background:var(--brand);filter:blur(80px);opacity:.5;right:-60px;top:-60px;}
    .score-main .stars{font-size:24px;color:#ffb703;letter-spacing:4px;margin-bottom:12px;}
    .score-main .big-score{font-size:64px;font-weight:900;line-height:1;position:relative;}
    .score-main .big-score small{font-size:20px;font-weight:700;color:#a9b2cb;}
    .score-main .score-label{font-size:15px;color:#c9d0e4;margin-top:12px;position:relative;}
    .score-main .reco{
      display:inline-flex;align-self:flex-start;margin-top:18px;padding:8px 18px;border-radius:999px;
      background:rgba(255,138,0,.2);color:#ffb703;font-size:14px;font-weight:800;position:relative;
    }
    .score-list{background:#fff;border-radius:var(--radius);padding:28px 30px;border:1px solid var(--line);box-shadow:var(--shadow);}
    .score-list h3{font-size:18px;font-weight:900;margin-bottom:18px;}
    .score-list ul{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:12px 22px;}
    .score-list li{font-size:14px;font-weight:600;display:flex;gap:9px;align-items:flex-start;}
    .score-list li::before{content:"★";color:var(--brand-2);flex-shrink:0;font-size:13px;margin-top:3px;}
    .table-scroll{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--line);background:#fff;}
    table.cmp{width:100%;border-collapse:collapse;min-width:720px;font-size:14px;}
    table.cmp thead th{
      background:var(--ink);color:#fff;font-weight:800;padding:16px 18px;text-align:left;font-size:14px;white-space:nowrap;
    }
    table.cmp thead th:nth-child(2){background:linear-gradient(120deg,var(--brand),var(--brand-2));}
    table.cmp tbody td{padding:14px 18px;border-bottom:1px solid var(--line);color:var(--muted);}
    table.cmp tbody tr:last-child td{border-bottom:none;}
    table.cmp tbody td:first-child{font-weight:700;color:var(--ink);}
    table.cmp tbody td:nth-child(2){color:var(--ink);font-weight:600;background:rgba(255,61,46,.035);}
    table.cmp tbody tr:hover td{background:rgba(47,91,255,.04);}

    /* ---------- Token 比价 ---------- */
    .price{background:var(--ink);color:#fff;}
    .price .sec-head h2{color:#fff;}
    .price .sec-head p{color:#a9b2cb;}
    .price .eyebrow{background:rgba(0,224,184,.14);color:#00e0b8;}
    .price-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:26px;}
    .price-card{
      background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius);
      padding:26px 22px;transition:.28s;position:relative;
    }
    .price-card:hover{transform:translateY(-6px);border-color:rgba(0,224,184,.5);}
    .price-card .pc-name{font-size:15px;font-weight:800;margin-bottom:16px;}
    .price-card .pc-price{font-size:30px;font-weight:900;color:#fff;line-height:1.1;}
    .price-card .pc-price small{font-size:13px;color:#a9b2cb;font-weight:600;}
    .price-card .pc-orig{font-size:13px;color:#7d869e;text-decoration:line-through;margin-top:6px;}
    .price-card .pc-note{font-size:12.5px;color:#a9b2cb;margin-top:14px;}
    .price-note{text-align:center;font-size:13px;color:#8b93ab;}

    /* ---------- 用户评论 ---------- */
    .review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
    .review-card{background:#fff;border-radius:var(--radius);padding:26px;border:1px solid var(--line);transition:.28s;display:flex;flex-direction:column;}
    .review-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);}
    .review-stars{color:#ffb703;font-size:15px;letter-spacing:2px;margin-bottom:13px;}
    .review-card p{font-size:14.5px;color:var(--ink-2);flex:1;margin-bottom:18px;}
    .review-user{display:flex;align-items:center;gap:12px;border-top:1px solid var(--line);padding-top:16px;}
    .avatar{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;font-weight:900;color:#fff;font-size:16px;}
    .review-user b{font-size:14px;display:block;}
    .review-user small{font-size:12.5px;color:var(--muted);}

    /* ---------- 帮助 / FAQ ---------- */
    .help-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:36px;align-items:start;}
    .help-side{background:linear-gradient(150deg,#1b1f3c,#2a1d46);border-radius:var(--radius);padding:34px 30px;color:#fff;position:sticky;top:90px;}
    .help-side h3{font-size:21px;font-weight:900;margin-bottom:12px;}
    .help-side p{font-size:14px;color:#b6bed6;margin-bottom:20px;}
    .help-side .hc{display:flex;gap:12px;align-items:center;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.1);font-size:14px;}
    .help-side .hc:last-of-type{border-bottom:none;}
    .help-side .hc span{font-size:19px;}
    .faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:.25s;}
    .faq-item.open{border-color:rgba(255,61,46,.4);box-shadow:0 8px 22px rgba(255,61,46,.08);}
    .faq-q{
      width:100%;text-align:left;background:none;border:none;font-family:inherit;font-size:15px;font-weight:700;
      padding:18px 50px 18px 20px;cursor:pointer;position:relative;color:var(--ink);line-height:1.5;
    }
    .faq-q::after{
      content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
      font-size:22px;font-weight:400;color:var(--brand);transition:.3s;
    }
    .faq-item.open .faq-q::after{transform:translateY(-50%) rotate(45deg);}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;}
    .faq-a p{padding:0 20px 18px;font-size:14px;color:var(--muted);}

    /* ---------- 需求匹配表单 ---------- */
    .form-section{background:linear-gradient(180deg,#f6f7fb,#fff);}
    .form-wrap{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:stretch;}
    .form-info{background:linear-gradient(150deg,#1b1f3c,#2a1d46);border-radius:var(--radius);padding:40px 36px;color:#fff;display:flex;flex-direction:column;justify-content:center;position:relative;overflow:hidden;}
    .form-info::before{content:"";position:absolute;width:240px;height:240px;border-radius:50%;background:var(--violet);filter:blur(90px);opacity:.55;left:-70px;bottom:-70px;}
    .form-info h2{font-size:clamp(23px,3vw,32px);font-weight:900;line-height:1.3;margin-bottom:16px;position:relative;}
    .form-info h2 em{font-style:normal;color:#ffb703;}
    .form-info p{font-size:14.5px;color:#b6bed6;margin-bottom:22px;position:relative;}
    .form-info .fi-list{list-style:none;position:relative;}
    .form-info .fi-list li{display:flex;gap:10px;font-size:14px;margin-bottom:12px;color:#dbe1f2;}
    .form-info .fi-list li::before{content:"▸";color:var(--brand-2);font-weight:900;flex-shrink:0;}
    form.demand{background:#fff;border-radius:var(--radius);padding:36px 34px;border:1px solid var(--line);box-shadow:var(--shadow);}
    form.demand h3{font-size:20px;font-weight:900;margin-bottom:6px;}
    form.demand .form-tip{font-size:13px;color:var(--muted);margin-bottom:22px;}
    .field{margin-bottom:16px;}
    .field label{display:block;font-size:13.5px;font-weight:700;margin-bottom:7px;}
    .field label .req{color:var(--brand);}
    .field input,.field select,.field textarea{
      width:100%;padding:12px 15px;border:1.5px solid var(--line);border-radius:10px;font-size:14px;
      font-family:inherit;color:var(--ink);background:#fbfcfe;transition:.2s;
    }
    .field input:focus,.field select:focus,.field textarea:focus{
      outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(255,61,46,.1);
    }
    .field textarea{resize:vertical;min-height:96px;}
    .form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
    form.demand .btn{width:100%;margin-top:8px;}
    .form-note{font-size:12px;color:var(--muted);text-align:center;margin-top:12px;}

    /* ---------- 文章 / AI百科 / 资讯 ---------- */
    .article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
    .article-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:.28s;display:flex;flex-direction:column;}
    .article-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:rgba(47,91,255,.35);}
    .article-card .ac-cat{font-size:12px;font-weight:800;color:var(--blue);margin-bottom:10px;}
    .article-card h4{font-size:16.5px;font-weight:800;line-height:1.5;margin-bottom:10px;}
    .article-card p{font-size:13.5px;color:var(--muted);flex:1;}
    .article-card .ac-link{font-size:13.5px;font-weight:700;color:var(--brand);margin-top:16px;}

    .kb{background:var(--ink);color:#fff;}
    .kb .sec-head h2{color:#fff;}
    .kb .sec-head p{color:#a9b2cb;}
    .kb .eyebrow{background:rgba(122,60,255,.22);color:#c4a8ff;}
    .kb-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
    .kb-card{border:1px solid rgba(255,255,255,.13);background:rgba(255,255,255,.05);border-radius:var(--radius);padding:26px;transition:.28s;}
    .kb-card:hover{transform:translateY(-5px);border-color:rgba(122,60,255,.6);}
    .kb-card h4{font-size:16.5px;font-weight:800;margin-bottom:10px;}
    .kb-card p{font-size:13.5px;color:#a9b2cb;}

    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;}
    .tag-cloud a{
      font-size:13px;font-weight:600;padding:8px 17px;border-radius:999px;background:#fff;
      border:1px solid var(--line);color:var(--muted);transition:.22s;
    }
    .tag-cloud a:hover{background:var(--ink);color:#fff;border-color:var(--ink);transform:translateY(-3px);}
    .tag-cloud a.hot{background:linear-gradient(120deg,var(--brand),var(--brand-2));color:#fff;border-color:transparent;}

    /* ---------- 联系我们 ---------- */
    .contact{background:linear-gradient(180deg,#fff,#f2f4fa);}
    .contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:32px;}
    .contact-cards{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
    .contact-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:.26s;}
    .contact-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);}
    .contact-card .cc-ico{font-size:22px;margin-bottom:10px;}
    .contact-card h4{font-size:15px;font-weight:800;margin-bottom:6px;}
    .contact-card p,.contact-card a{font-size:13.5px;color:var(--muted);word-break:break-all;}
    .contact-card a:hover{color:var(--brand);}
    .qr-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;text-align:center;box-shadow:var(--shadow);}
    .qr-box img{width:180px;height:180px;object-fit:cover;border-radius:12px;margin:0 auto 14px;border:1px solid var(--line);}
    .qr-box h4{font-size:16px;font-weight:800;margin-bottom:6px;}
    .qr-box p{font-size:13px;color:var(--muted);}

    /* ---------- 加盟代理 ---------- */
    .join{background:linear-gradient(135deg,#10152b,#241a3f);color:#fff;text-align:center;overflow:hidden;}
    .join::before{content:"";position:absolute;width:400px;height:400px;border-radius:50%;background:var(--brand);filter:blur(140px);opacity:.35;left:-100px;top:-120px;}
    .join .wrap{position:relative;}
    .join h2{font-size:clamp(25px,3.6vw,40px);font-weight:900;line-height:1.25;margin-bottom:16px;}
    .join h2 em{font-style:normal;background:linear-gradient(100deg,#ffb703,#ff3d2e);-webkit-background-clip:text;background-clip:text;color:transparent;}
    .join p{color:#b6bed6;max-width:680px;margin:0 auto 30px;font-size:15.5px;}
    .join-points{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;max-width:900px;margin:0 auto 34px;}
    .join-points div{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);border-radius:14px;padding:20px 14px;}
    .join-points b{display:block;font-size:20px;font-weight:900;color:#ffb703;margin-bottom:4px;}
    .join-points span{font-size:13px;color:#c9d0e4;}

    /* ---------- 页脚 ---------- */
    footer{background:#0b0f1c;color:#9aa3ba;padding:56px 0 0;font-size:13.5px;}
    .foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:34px;padding-bottom:40px;}
    .foot-brand .ai-page-logo{height:36px;margin-bottom:14px;}
    .foot-brand p{font-size:13px;line-height:1.8;color:#8b93ab;margin-bottom:14px;}
    .foot-col h5{color:#fff;font-size:14.5px;font-weight:800;margin-bottom:16px;}
    .foot-col ul{list-style:none;display:flex;flex-direction:column;gap:9px;}
    .foot-col ul li a{font-size:13px;color:#9aa3ba;transition:.2s;}
    .foot-col ul li a:hover{color:var(--brand-2);}
    .foot-contact p{margin-bottom:9px;font-size:13px;}
    .foot-contact a{color:#c9d0e4;}
    .foot-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:12.5px;color:#6f7890;}
    .foot-bottom a{color:#8b93ab;}
    .foot-bottom a:hover{color:#fff;}

    /* ---------- 浮动 ---------- */
    .back-top{
      position:fixed;right:24px;bottom:96px;width:46px;height:46px;border-radius:50%;
      background:var(--ink);color:#fff;border:none;cursor:pointer;display:grid;place-items:center;
      font-size:18px;box-shadow:0 10px 24px rgba(0,0,0,.25);opacity:0;visibility:hidden;transition:.3s;z-index:880;
    }
    .back-top.show{opacity:1;visibility:visible;}
    .back-top:hover{background:var(--brand);transform:translateY(-4px);}
    .float-kf{position:fixed;right:24px;bottom:28px;z-index:890;}
    .float-kf .kf-btn{
      width:56px;height:56px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-2));
      color:#fff;border:none;cursor:pointer;font-size:23px;display:grid;place-items:center;
      box-shadow:0 12px 28px rgba(255,61,46,.4);transition:.28s;animation:kfPulse 2.4s infinite;
    }
    @keyframes kfPulse{0%,100%{box-shadow:0 12px 28px rgba(255,61,46,.4);}50%{box-shadow:0 12px 34px rgba(255,61,46,.7);}}
    .float-kf .kf-btn:hover{transform:scale(1.08);}
    .kf-panel{
      position:absolute;right:0;bottom:70px;width:250px;background:#fff;border-radius:16px;
      box-shadow:0 18px 46px rgba(0,0,0,.18);padding:20px;text-align:center;
      opacity:0;visibility:hidden;transform:translateY(12px);transition:.28s;border:1px solid var(--line);
    }
    .kf-panel.show{opacity:1;visibility:visible;transform:translateY(0);}
    .kf-panel img{width:150px;height:150px;object-fit:cover;border-radius:10px;margin:0 auto 10px;border:1px solid var(--line);}
    .kf-panel h5{font-size:14px;font-weight:800;color:var(--ink);margin-bottom:4px;}
    .kf-panel p{font-size:12.5px;color:var(--muted);margin-bottom:6px;word-break:break-all;}
    .kf-panel .kp-links{display:flex;gap:8px;margin-top:10px;}
    .kf-panel .kp-links a{
      flex:1;font-size:12px;font-weight:700;padding:8px 0;border-radius:8px;background:var(--bg);color:var(--ink-2);transition:.2s;
    }
    .kf-panel .kp-links a:hover{background:var(--brand);color:#fff;}

    /* ---------- 动画 ---------- */
    .reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease;}
    .reveal.in{opacity:1;transform:translateY(0);}

    /* ---------- 响应式 ---------- */
    @media(max-width:1080px){
      .nav-links a{padding:8px 10px;font-size:13.5px;}
      .hero-grid{grid-template-columns:1fr;gap:40px;}
      .hero-visual{min-height:auto;}
      .hero-stats{max-width:100%;}
      .metric-grid{grid-template-columns:repeat(2,1fr);}
      .svc-grid{grid-template-columns:repeat(2,1fr);}
      .scenario-grid{grid-template-columns:repeat(2,1fr);}
      .ind-grid{grid-template-columns:repeat(2,1fr);}
      .flow-steps{grid-template-columns:repeat(3,1fr);}
      .flow-step::after{display:none;}
      .price-grid{grid-template-columns:repeat(2,1fr);}
      .case-grid{grid-template-columns:repeat(2,1fr);}
      .review-grid{grid-template-columns:repeat(2,1fr);}
      .article-grid{grid-template-columns:repeat(2,1fr);}
      .kb-grid{grid-template-columns:repeat(2,1fr);}
      .score-box{grid-template-columns:1fr;}
      .help-wrap{grid-template-columns:1fr;}
      .help-side{position:static;}
      .form-wrap{grid-template-columns:1fr;}
      .contact-grid{grid-template-columns:1fr;}
      .net-grid{grid-template-columns:1fr;}
      .about-grid{grid-template-columns:1fr;gap:32px;}
      .foot-grid{grid-template-columns:1fr 1fr;}
      .join-points{grid-template-columns:repeat(2,1fr);}
    }
    @media(max-width:860px){
      .nav-links{
        position:absolute;top:70px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;
        padding:10px 16px 18px;border-bottom:1px solid var(--line);box-shadow:0 18px 30px rgba(0,0,0,.08);
        display:none;max-height:calc(100vh - 70px);overflow-y:auto;
      }
      .nav-links.open{display:flex;}
      .nav-links a{padding:12px 10px;font-size:15px;border-radius:10px;}
      .burger{display:flex;}
      .nav-cta .btn-line{display:none;}
      .topbar .tb-right{gap:12px;font-size:12px;}
    }
    @media(max-width:640px){
      section{padding:56px 0;}
      .hero{padding:64px 0 68px;}
      .hero-stats{grid-template-columns:repeat(2,1fr);;}
      .metric-grid{grid-template-columns:1fr 1fr;gap:12px;}
      .metric{padding:20px 14px;}
      .svc-grid,.scenario-grid,.ind-grid,.flow-steps,.price-grid,.case-grid,.review-grid,.article-grid,.kb-grid{grid-template-columns:1fr;}
      .about-list{grid-template-columns:1fr;}
      .about-media{figure:nth-child(2),figure:nth-child(3){display:none;}}
      .about-media figure:first-child img{min-height:240px;}
      .score-list ul{grid-template-columns:1fr;}
      .form-row{grid-template-columns:1fr;}
      .contact-cards{grid-template-columns:1fr;}
      .join-points{grid-template-columns:1fr 1fr;}
      .foot-grid{grid-template-columns:1fr;gap:26px;}
      .foot-bottom{flex-direction:column;text-align:center;}
      .hero-actions .btn{flex:1 1 auto;}
      form.demand,.form-info{padding:26px 22px;}
      .back-top{right:16px;bottom:90px;width:42px;height:42px;}
      .float-kf{right:16px;bottom:24px;}
      .float-kf .kf-btn{width:50px;height:50px;}
      .kf-panel{width:220px;}
      .case-card img{height:180px;}
    }
    @media(prefers-reduced-motion:reduce){
      *{animation:none!important;transition:none!important;}
      .reveal{opacity:1;transform:none;}
      html{scroll-behavior:auto;}
    }