:root{
    --red:#e0281f;
    --red-deep:#b7140d;
    --red-soft:#fdeceb;
    --ink:#221a19;
    --ink-2:#4a3f3d;
    --ink-3:#786b68;
    --line:#f0dcd9;
    --bg:#fffaf9;
    --bg-2:#fff3f1;
    --card:#ffffff;
    --radius:18px;
    --shadow:0 10px 30px rgba(180,40,30,.08);
    --shadow-hover:0 18px 44px rgba(180,40,30,.16);
    --max:1180px;
  }
  *{box-sizing:border-box;margin:0;padding:0;}
  html{scroll-behavior:smooth;}
  body{
    font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
    color:var(--ink);
    background:
      radial-gradient(1200px 600px at 15% -10%, #ffe6e2 0%, rgba(255,230,226,0) 60%),
      radial-gradient(900px 500px at 100% 0%, #ffefec 0%, rgba(255,239,236,0) 55%),
      linear-gradient(180deg,#fffaf9 0%, #fff5f3 40%, #fffaf9 100%);
    line-height:1.7;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;height:auto;display:block;}
  a{text-decoration:none;color:inherit;}
  .container{max-width:var(--max);margin:0 auto;padding:0 22px;}

  /* ===== 顶部导航 ===== */
  header.site-header{
    position:sticky;top:0;z-index:80;
    background:rgba(255,250,249,.92);
    backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);
  }
  .nav-inner{
    max-width:var(--max);margin:0 auto;padding:10px 22px;
    display:flex;align-items:center;justify-content:space-between;gap:18px;
  }
  .brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
  .brand img{width:132px;height:auto;}
  .brand-txt{font-weight:800;font-size:17px;letter-spacing:.5px;color:var(--red-deep);display:none;}
  .nav-links{display:flex;align-items:center;gap:0;flex-wrap:wrap;}
  .nav-links a{
    padding:8px 11px;font-size:14px;color:var(--ink-2);border-radius:9px;
    transition:color .2s,background .2s;white-space:nowrap;
  }
  .nav-links a:hover{color:var(--red);background:var(--red-soft);}
  .nav-cta{
    display:flex;align-items:center;gap:10px;flex-shrink:0;
  }
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:11px 22px;border-radius:12px;font-size:14.5px;font-weight:700;
    border:1px solid transparent;cursor:pointer;transition:transform .18s,box-shadow .22s,background .22s,color .22s;
    line-height:1.2;
  }
  .btn-primary{
    color:#fff;background:linear-gradient(135deg,#e6402f,#c0140c);
    box-shadow:0 8px 20px rgba(200,30,20,.28);
  }
  .btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(200,30,20,.36);}
  .btn-ghost{
    color:var(--red-deep);background:#fff;border-color:#f3c9c4;
  }
  .btn-ghost:hover{background:var(--red-soft);transform:translateY(-2px);}
  .menu-toggle{
    display:none;width:44px;height:44px;border-radius:11px;border:1px solid var(--line);
    background:#fff;cursor:pointer;align-items:center;justify-content:center;
  }
  .menu-toggle span{display:block;width:20px;height:2px;background:var(--red-deep);position:relative;}
  .menu-toggle span::before,.menu-toggle span::after{
    content:"";position:absolute;left:0;width:20px;height:2px;background:var(--red-deep);
  }
  .menu-toggle span::before{top:-6px;}
  .menu-toggle span::after{top:6px;}

  /* ===== Hero ===== */
  .hero{
    position:relative;overflow:hidden;padding:76px 0 84px;
    background:
      radial-gradient(700px 420px at 82% 18%, rgba(224,40,31,.13), transparent 62%),
      radial-gradient(600px 380px at 8% 88%, rgba(224,40,31,.09), transparent 60%);
  }
  .hero::before,.hero::after{
    content:"";position:absolute;border-radius:50%;pointer-events:none;
  }
  .hero::before{
    width:420px;height:420px;right:-120px;top:-140px;
    border:1px solid rgba(224,40,31,.16);
    animation:floatSlow 11s ease-in-out infinite;
  }
  .hero::after{
    width:260px;height:260px;left:-90px;bottom:-100px;
    border:1px dashed rgba(224,40,31,.2);
    animation:floatSlow 14s ease-in-out infinite reverse;
  }
  @keyframes floatSlow{
    0%,100%{transform:translateY(0) rotate(0);}
    50%{transform:translateY(-18px) rotate(4deg);}
  }
  .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center;position:relative;z-index:2;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    padding:7px 15px;border-radius:999px;font-size:13px;font-weight:700;
    color:var(--red-deep);background:#fff;border:1px solid #f6cfc9;
    box-shadow:0 4px 14px rgba(200,30,20,.09);
  }
  .eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--red);display:block;animation:pulse 1.9s infinite;}
  @keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.4;transform:scale(.75);}}
  h1{
    font-size:clamp(28px,4.2vw,46px);line-height:1.25;font-weight:900;
    letter-spacing:-.5px;margin:18px 0 16px;color:#1c1211;
  }
  h1 em{font-style:normal;color:var(--red);position:relative;}
  .hero-desc{font-size:16px;color:var(--ink-2);max-width:560px;margin-bottom:26px;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
  .hero-tags{display:flex;flex-wrap:wrap;gap:9px;}
  .hero-tags span{
    font-size:12.5px;padding:6px 13px;border-radius:999px;color:var(--ink-2);
    background:rgba(255,255,255,.85);border:1px solid var(--line);
  }
  .hero-panel{
    background:linear-gradient(160deg,#fff 0%,#fff4f2 100%);
    border:1px solid var(--line);border-radius:24px;padding:26px;
    box-shadow:0 22px 50px rgba(190,40,30,.12);
    animation:riseIn .9s cubic-bezier(.2,.8,.3,1) both;
  }
  @keyframes riseIn{from{opacity:0;transform:translateY(26px);}to{opacity:1;transform:translateY(0);}}
  .panel-title{font-size:15px;font-weight:800;color:#1c1211;display:flex;align-items:center;gap:9px;margin-bottom:16px;}
  .panel-title::before{content:"";width:4px;height:16px;border-radius:3px;background:var(--red);}
  .panel-stats{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
  .pstat{background:#fff;border:1px solid #fae2de;border-radius:14px;padding:14px;}
  .pstat b{display:block;font-size:22px;font-weight:900;color:var(--red-deep);line-height:1.2;}
  .pstat small{font-size:12.5px;color:var(--ink-3);}
  .panel-note{margin-top:16px;font-size:13px;color:var(--ink-3);border-top:1px dashed #f3cfca;padding-top:14px;}

  /* ===== 通用区块 ===== */
  section{padding:70px 0;position:relative;}
  .sec-head{max-width:760px;margin:0 auto 42px;text-align:center;}
  .sec-tag{
    display:inline-block;font-size:12.5px;font-weight:800;letter-spacing:2px;
    color:var(--red);text-transform:uppercase;margin-bottom:12px;
  }
  .sec-head h2{font-size:clamp(23px,3vw,34px);font-weight:900;line-height:1.3;color:#1c1211;letter-spacing:-.3px;}
  .sec-head p{font-size:15px;color:var(--ink-3);margin-top:12px;}
  .reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.8,.3,1);}
  .reveal.in{opacity:1;transform:translateY(0);}

  /* ===== 数据指标 ===== */
  .metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
  .metric{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    padding:26px 22px;box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s,border-color .25s;
  }
  .metric:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:#f6c9c3;}
  .metric b{display:block;font-size:30px;font-weight:900;color:var(--red-deep);line-height:1.1;margin-bottom:8px;}
  .metric span{font-size:13.5px;color:var(--ink-3);}

  /* ===== 平台介绍（不对称双栏） ===== */
  .intro-wrap{display:grid;grid-template-columns:1fr 1fr;gap:38px;align-items:start;}
  .intro-copy p{font-size:15.5px;color:var(--ink-2);margin-bottom:16px;}
  .intro-list{list-style:none;display:grid;gap:12px;margin-top:6px;}
  .intro-list li{
    display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:var(--ink-2);
    background:#fff;border:1px solid var(--line);border-radius:13px;padding:13px 16px;
    transition:transform .2s,border-color .2s;
  }
  .intro-list li:hover{transform:translateX(4px);border-color:#f3c2bb;}
  .intro-list li b{color:#1c1211;font-weight:800;}
  .dot{width:22px;height:22px;flex-shrink:0;border-radius:7px;background:var(--red-soft);color:var(--red);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:900;margin-top:2px;}
  .intro-media{
    background:linear-gradient(150deg,#fff,#fff0ed);
    border:1px solid var(--line);border-radius:22px;padding:22px;box-shadow:var(--shadow);
  }
  .intro-media .img-wrap{border-radius:14px;overflow:hidden;border:1px solid #f6dbd6;background:#fff;}
  .intro-media .img-wrap + .img-wrap{margin-top:14px;}
  .intro-media figcaption{font-size:12.5px;color:var(--ink-3);margin-top:9px;text-align:center;}

  /* ===== 服务能力卡片 ===== */
  .service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
  .service-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    padding:26px 24px;box-shadow:var(--shadow);position:relative;overflow:hidden;
    transition:transform .28s,box-shadow .28s,border-color .28s;
  }
  .service-card::after{
    content:"";position:absolute;left:0;top:0;height:3px;width:0;background:linear-gradient(90deg,#e6402f,#ff9b8f);
    transition:width .4s ease;
  }
  .service-card:hover{transform:translateY(-7px);box-shadow:var(--shadow-hover);border-color:#f6c9c3;}
  .service-card:hover::after{width:100%;}
  .service-ico{
    width:46px;height:46px;border-radius:13px;display:flex;align-items:center;justify-content:center;
    background:linear-gradient(135deg,#fdeceb,#ffdcd7);color:var(--red-deep);font-weight:900;font-size:17px;
    margin-bottom:16px;
  }
  .service-card h3{font-size:17px;font-weight:800;margin-bottom:9px;color:#1c1211;}
  .service-card p{font-size:14px;color:var(--ink-3);line-height:1.75;}

  /* ===== 场景标签云 ===== */
  .tag-cloud{display:flex;flex-wrap:wrap;gap:11px;justify-content:center;}
  .tag-cloud a, .tag-cloud span{
    font-size:13.5px;padding:9px 18px;border-radius:999px;background:#fff;
    border:1px solid var(--line);color:var(--ink-2);transition:all .22s;cursor:default;
  }
  .tag-cloud span:hover{
    background:var(--red);color:#fff;border-color:var(--red);transform:translateY(-3px);
    box-shadow:0 10px 22px rgba(200,30,20,.25);
  }

  /* ===== 模型聚合 ===== */
  .model-band{
    background:linear-gradient(135deg,#fff5f3,#ffe9e5);
    border:1px solid #f7cdc7;border-radius:26px;padding:38px 34px;
  }
  .model-band h2{font-size:clamp(21px,2.6vw,29px);font-weight:900;color:#1c1211;margin-bottom:10px;}
  .model-band p{font-size:14.5px;color:var(--ink-2);max-width:760px;margin-bottom:24px;}
  .model-chips{display:flex;flex-wrap:wrap;gap:10px;}
  .model-chips span{
    background:#fff;border:1px solid #f6d4cf;border-radius:10px;
    padding:7px 14px;font-size:13px;font-weight:600;color:#3a2b29;
    transition:transform .2s,color .2s,border-color .2s;
  }
  .model-chips span:hover{transform:translateY(-3px);color:var(--red-deep);border-color:var(--red);}

  /* ===== 流程步骤 ===== */
  .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step;}
  .step{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    padding:26px 22px;position:relative;box-shadow:var(--shadow);
    transition:transform .25s,box-shadow .25s;
  }
  .step:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);}
  .step::before{
    counter-increment:step;content:"0" counter(step);
    font-size:13px;font-weight:900;color:var(--red);letter-spacing:1px;
    display:block;margin-bottom:12px;
  }
  .step h3{font-size:16px;font-weight:800;margin-bottom:8px;color:#1c1211;}
  .step p{font-size:13.5px;color:var(--ink-3);line-height:1.7;}

  /* ===== 对比评测 ===== */
  .review-wrap{display:grid;grid-template-columns:.92fr 1.08fr;gap:30px;align-items:start;}
  .score-card{
    background:linear-gradient(160deg,#e0281f,#a5130c);color:#fff;border-radius:24px;
    padding:34px 30px;box-shadow:0 22px 50px rgba(180,25,15,.3);position:relative;overflow:hidden;
  }
  .score-card::after{
    content:"";position:absolute;width:220px;height:220px;border-radius:50%;
    background:rgba(255,255,255,.09);right:-70px;bottom:-90px;
  }
  .score-card .stars{font-size:20px;letter-spacing:3px;color:#ffd9a0;margin-bottom:14px;}
  .score-big{font-size:56px;font-weight:900;line-height:1;letter-spacing:-2px;}
  .score-big small{font-size:18px;font-weight:600;opacity:.8;}
  .score-card h3{font-size:18px;font-weight:800;margin:14px 0 10px;}
  .score-card p{font-size:13.5px;color:rgba(255,255,255,.88);line-height:1.75;}
  .table-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);}
  .table-scroll{overflow-x:auto;}
  table.compare{width:100%;border-collapse:collapse;min-width:520px;}
  table.compare th, table.compare td{
    padding:14px 18px;font-size:13.8px;text-align:left;border-bottom:1px solid #f7e4e1;
  }
  table.compare thead th{background:#fff3f1;color:#4a2b27;font-weight:800;font-size:13.5px;}
  table.compare tbody tr:last-child td{border-bottom:none;}
  table.compare tbody tr:hover{background:#fff9f8;}
  table.compare td:first-child{font-weight:700;color:#1c1211;}
  .yes{color:var(--red-deep);font-weight:800;}
  .no{color:#9c8f8c;}

  /* ===== 案例中心 ===== */
  .case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
  .case-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
    box-shadow:var(--shadow);transition:transform .28s,box-shadow .28s;
  }
  .case-card:hover{transform:translateY(-7px);box-shadow:var(--shadow-hover);}
  .case-img{overflow:hidden;background:#fff4f2;}
  .case-img img{width:100%;height:auto;transition:transform .5s ease;}
  .case-card:hover .case-img img{transform:scale(1.05);}
  .case-body{padding:20px 22px 24px;}
  .case-body h3{font-size:16px;font-weight:800;margin-bottom:8px;color:#1c1211;}
  .case-body p{font-size:13.5px;color:var(--ink-3);}
  .case-body .case-tag{
    display:inline-block;margin-top:14px;font-size:12px;font-weight:700;
    color:var(--red-deep);background:var(--red-soft);padding:4px 12px;border-radius:999px;
  }

  /* ===== 价格参考 ===== */
  .price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
  .price-card{
    background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px 26px;
    box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s,border-color .25s;
    display:flex;flex-direction:column;
  }
  .price-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:#f6c9c3;}
  .price-card.hot{border-color:var(--red);box-shadow:0 16px 40px rgba(200,30,20,.16);}
  .price-card h3{font-size:16px;font-weight:800;color:#1c1211;margin-bottom:6px;}
  .price-card .price-desc{font-size:13px;color:var(--ink-3);margin-bottom:18px;}
  .price-val{font-size:15px;color:var(--ink-2);padding-bottom:18px;border-bottom:1px dashed #f3d5d0;margin-bottom:18px;}
  .price-val b{font-size:32px;font-weight:900;color:var(--red-deep);letter-spacing:-1px;}
  .price-card ul{list-style:none;display:grid;gap:10px;margin-bottom:22px;}
  .price-card li{font-size:13.5px;color:var(--ink-2);display:flex;gap:9px;align-items:flex-start;}
  .price-card li::before{content:"✓";color:var(--red);font-weight:900;font-size:13px;}
  .price-card .btn{margin-top:auto;width:100%;}

  /* ===== 服务网络 / 时间线 ===== */
  .timeline{position:relative;padding-left:26px;}
  .timeline::before{
    content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;
    background:linear-gradient(180deg,#ffd0c9,#e0281f);
  }
  .tl-item{position:relative;padding-bottom:26px;}
  .tl-item:last-child{padding-bottom:0;}
  .tl-item::before{
    content:"";position:absolute;left:-25px;top:6px;width:12px;height:12px;border-radius:50%;
    background:#fff;border:3px solid var(--red);
  }
  .tl-item h3{font-size:15.5px;font-weight:800;color:#1c1211;margin-bottom:6px;}
  .tl-item p{font-size:13.8px;color:var(--ink-3);}

  /* ===== 评论 ===== */
  .review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
  .quote-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    padding:26px 24px;box-shadow:var(--shadow);position:relative;
    display:flex;flex-direction:column;transition:transform .26s,box-shadow .26s;
  }
  .quote-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);}
  .quote-mark{font-size:38px;line-height:1;color:#f7cbc4;font-weight:900;margin-bottom:8px;}
  .quote-card p{font-size:14px;color:var(--ink-2);flex:1;margin-bottom:18px;}
  .quote-meta{display:flex;align-items:center;gap:11px;border-top:1px solid #f8e5e1;padding-top:15px;}
  .avatar{
    width:38px;height:38px;border-radius:50%;flex-shrink:0;
    background:linear-gradient(135deg,#fbd9d3,#f6b6ac);color:#8f1f12;
    display:flex;align-items:center;justify-content:center;font-weight:900;font-size:14px;
  }
  .quote-meta b{display:block;font-size:13.5px;color:#1c1211;}
  .quote-meta small{font-size:12px;color:var(--ink-3);}

  /* ===== 文章 ===== */
  .article-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
  .article-item{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 22px;
    transition:all .22s;
  }
  .article-item:hover{border-color:#f3bfb8;transform:translateY(-3px);box-shadow:var(--shadow);}
  .article-item b{font-size:14.5px;color:#1c1211;font-weight:700;}
  .article-item span{font-size:12.5px;color:var(--red-deep);font-weight:700;white-space:nowrap;}

  /* ===== FAQ ===== */
  .faq-wrap{max-width:860px;margin:0 auto;display:grid;gap:12px;}
  .faq-item{
    background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;
    transition:border-color .22s,box-shadow .22s;
  }
  .faq-item.open{border-color:#f2bab2;box-shadow:var(--shadow);}
  .faq-q{
    width:100%;text-align:left;background:none;border:none;cursor:pointer;
    padding:18px 22px;font-size:15px;font-weight:700;color:#1c1211;
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    font-family:inherit;transition:color .2s;
  }
  .faq-q:hover{color:var(--red-deep);}
  .faq-q i{
    width:22px;height:22px;flex-shrink:0;border-radius:50%;background:var(--red-soft);
    color:var(--red-deep);display:flex;align-items:center;justify-content:center;
    font-style:normal;font-size:15px;font-weight:900;transition:transform .28s,background .28s,color .28s;
  }
  .faq-item.open .faq-q i{transform:rotate(45deg);background:var(--red);color:#fff;}
  .faq-a{
    max-height:0;overflow:hidden;transition:max-height .34s ease;
    padding:0 22px;font-size:14px;color:var(--ink-3);
  }
  .faq-item.open .faq-a{max-height:260px;padding-bottom:20px;}

  /* ===== 表单区 ===== */
  .contact-wrap{display:grid;grid-template-columns:1fr 1.05fr;gap:30px;align-items:start;}
  .contact-info{
    background:linear-gradient(160deg,#fff5f3,#ffe7e2);
    border:1px solid #f7cdc7;border-radius:22px;padding:32px 30px;
  }
  .contact-info h3{font-size:19px;font-weight:900;color:#1c1211;margin-bottom:10px;}
  .contact-info > p{font-size:14px;color:var(--ink-2);margin-bottom:22px;}
  .contact-lines{display:grid;gap:14px;}
  .contact-line{
    display:flex;gap:13px;align-items:flex-start;background:#fff;border:1px solid #f9dbd6;
    border-radius:13px;padding:14px 16px;font-size:13.8px;color:var(--ink-2);
  }
  .contact-line b{display:block;color:#1c1211;font-size:14px;margin-bottom:2px;}
  .contact-line .dot{margin-top:1px;}
  .kefu-box{margin-top:20px;background:#fff;border:1px solid #f9dbd6;border-radius:15px;padding:16px;text-align:center;}
  .kefu-box img{width:150px;margin:0 auto 10px;border-radius:9px;}
  .kefu-box small{font-size:12.5px;color:var(--ink-3);}
  form.demand{
    background:#fff;border:1px solid var(--line);border-radius:22px;padding:32px 30px;
    box-shadow:var(--shadow);
  }
  form.demand h3{font-size:19px;font-weight:900;color:#1c1211;margin-bottom:6px;}
  form.demand .form-sub{font-size:13.5px;color:var(--ink-3);margin-bottom:22px;}
  .field{margin-bottom:16px;}
  .field label{display:block;font-size:13.5px;font-weight:700;color:#3a2b29;margin-bottom:7px;}
  .field input,.field select,.field textarea{
    width:100%;padding:12px 15px;border:1px solid #eed8d4;border-radius:11px;
    font-size:14px;font-family:inherit;color:#1c1211;background:#fffdfc;
    transition:border-color .2s,box-shadow .2s;
  }
  .field input:focus,.field select:focus,.field textarea:focus{
    outline:none;border-color:var(--red);box-shadow:0 0 0 3px rgba(224,40,31,.12);
  }
  .field textarea{resize:vertical;min-height:104px;}
  .field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
  form.demand .btn{width:100%;margin-top:6px;}
  .form-tip{font-size:12px;color:var(--ink-3);margin-top:12px;text-align:center;}

  /* ===== 加盟代理 ===== */
  .join-band{
    background:linear-gradient(140deg,#fff6f4,#ffe3de);
    border:1px solid #f7c9c2;border-radius:26px;padding:44px 38px;
    display:grid;grid-template-columns:1.25fr .75fr;gap:32px;align-items:center;
  }
  .join-band h2{font-size:clamp(21px,2.7vw,30px);font-weight:900;color:#1c1211;margin-bottom:12px;}
  .join-band p{font-size:14.5px;color:var(--ink-2);margin-bottom:20px;}
  .join-points{display:grid;grid-template-columns:1fr 1fr;gap:11px;list-style:none;margin-bottom:24px;}
  .join-points li{font-size:13.5px;color:#3a2b29;display:flex;gap:8px;align-items:flex-start;}
  .join-points li::before{content:"●";color:var(--red);font-size:9px;line-height:2.2;}
  .join-actions{display:flex;gap:14px;flex-wrap:wrap;}
  .join-side{
    background:#fff;border:1px solid #f9dbd6;border-radius:18px;padding:24px;text-align:center;
  }
  .join-side b{display:block;font-size:15px;font-weight:900;color:#1c1211;margin-bottom:6px;}
  .join-side small{font-size:12.8px;color:var(--ink-3);line-height:1.7;display:block;}

  /* ===== 友情链接 ===== */
  .links-box{
    background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px 28px;
    box-shadow:var(--shadow);
  }
  .links-box h3{font-size:14px;font-weight:800;color:#1c1211;margin-bottom:14px;}
  .links-row{display:flex;flex-wrap:wrap;gap:10px 22px;}
  .links-row a{font-size:13.5px;color:var(--ink-2);transition:color .2s;}
  .links-row a:hover{color:var(--red);}

  /* ===== Footer ===== */
  footer.site-footer{
    background:#2a1614;color:#f0e2df;margin-top:0;padding:50px 0 0;
  }
  .footer-grid{
    display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:32px;
    padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.12);
  }
  footer.site-footer h4{font-size:14px;font-weight:800;color:#fff;margin-bottom:15px;}
  .footer-brand img{width:130px;margin-bottom:14px;filter:brightness(0) invert(1);opacity:.95;}
  .footer-brand p{font-size:13.2px;color:rgba(240,226,223,.72);line-height:1.8;max-width:290px;}
  .footer-links{list-style:none;display:grid;gap:9px;}
  .footer-links a{font-size:13.2px;color:rgba(240,226,223,.72);transition:color .2s;}
  .footer-links a:hover{color:#ff9c8f;}
  .footer-contact{font-size:13.2px;color:rgba(240,226,223,.72);display:grid;gap:9px;}
  .footer-contact b{color:#fff;font-weight:700;}
  .copy-bar{
    padding:20px 0 26px;display:flex;align-items:center;justify-content:space-between;
    gap:14px;flex-wrap:wrap;font-size:12.8px;color:rgba(240,226,223,.55);
  }
  .copy-bar a{color:rgba(240,226,223,.75);transition:color .2s;}
  .copy-bar a:hover{color:#ff9c8f;}

  /* ===== 浮动客服 / 返回顶部 ===== */
  .float-tools{position:fixed;right:18px;bottom:22px;z-index:90;display:flex;flex-direction:column;gap:12px;}
  .float-btn{
    width:50px;height:50px;border-radius:15px;border:none;cursor:pointer;
    display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;
    transition:transform .22s,box-shadow .22s,opacity .3s;font-family:inherit;
    box-shadow:0 10px 24px rgba(160,30,20,.24);
  }
  .float-btn:hover{transform:translateY(-4px);}
  .float-kf{background:linear-gradient(135deg,#e6402f,#b7140d);color:#fff;}
  .float-top{background:#fff;color:var(--red-deep);border:1px solid #f3c9c4;opacity:0;pointer-events:none;}
  .float-top.show{opacity:1;pointer-events:auto;}
  .kf-pop{
    position:fixed;right:78px;bottom:22px;z-index:91;width:220px;
    background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px;
    box-shadow:0 20px 46px rgba(160,30,20,.2);text-align:center;
    opacity:0;transform:translateY(10px) scale(.96);pointer-events:none;
    transition:opacity .26s,transform .26s;
  }
  .kf-pop.show{opacity:1;transform:translateY(0) scale(1);pointer-events:auto;}
  .kf-pop img{width:150px;margin:0 auto 10px;border-radius:9px;}
  .kf-pop b{display:block;font-size:13.5px;color:#1c1211;margin-bottom:4px;}
  .kf-pop small{font-size:12px;color:var(--ink-3);line-height:1.6;display:block;}

  /* ===== 响应式 ===== */
  @media (max-width:1024px){
    .hero-grid{grid-template-columns:1fr;gap:34px;}
    .metrics{grid-template-columns:1fr 1fr;}
    .service-grid{grid-template-columns:1fr 1fr;}
    .steps{grid-template-columns:1fr 1fr;}
    .review-wrap,.intro-wrap,.contact-wrap,.join-band{grid-template-columns:1fr;}
    .case-grid,.review-grid,.price-grid{grid-template-columns:1fr 1fr;}
    .footer-grid{grid-template-columns:1fr 1fr;}
  }
  @media (max-width:820px){
    .nav-links{
      display:none;position:absolute;left:0;right:0;top:100%;
      background:#fff;border-bottom:1px solid var(--line);
      padding:10px 22px 18px;flex-direction:column;align-items:flex-start;gap:0;
      box-shadow:0 18px 32px rgba(160,30,20,.1);
    }
    .nav-links.open{display:flex;}
    .nav-links a{width:100%;padding:11px 6px;font-size:14.5px;border-bottom:1px solid #f8eae7;}
    .menu-toggle{display:flex;}
    .nav-cta .btn-ghost{display:none;}
    .nav-cta .btn{padding:9px 15px;font-size:13px;}
    .brand img{width:112px;}
    section{padding:54px 0;}
    .article-list{grid-template-columns:1fr;}
    .join-points{grid-template-columns:1fr;}
  }
  @media (max-width:640px){
    .container{padding:0 16px;}
    .nav-inner{padding:9px 16px;}
    .hero{padding:52px 0 60px;}
    .hero-actions{gap:11px;}
    .hero-actions .btn{width:100%;}
    .metrics{grid-template-columns:1fr;}
    .service-grid,.steps,.case-grid,.review-grid,.price-grid{grid-template-columns:1fr;}
    .panel-stats{grid-template-columns:1fr;}
    .field-row{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr;gap:26px;}
    .join-band{padding:30px 22px;}
    .model-band{padding:26px 20px;}
    .score-card{padding:28px 24px;}
    .copy-bar{justify-content:center;text-align:center;}
    .kf-pop{right:16px;bottom:86px;width:calc(100% - 32px);max-width:260px;}
    .float-tools{right:14px;bottom:16px;}
  }
  @media (prefers-reduced-motion: reduce){
    *{animation:none !important;transition:none !important;}
    .reveal{opacity:1;transform:none;}
  }