*{margin:0;padding:0;box-sizing:border-box}
  html,body{min-height:100%;}
  body{font-family:"Microsoft YaHei","PingFang SC",sans-serif;color:#222;background:#fff;line-height:1.7}
  a{text-decoration:none;color:#222}
  ul{list-style:none}
  img,svg{max-width:100%;height:auto;display:block}

  .container{width:94%;max-width:1200px;margin:0 auto}

  /* 顶部工具条 */
  .topbar{background:#f7f7f7;border-bottom:1px solid #eee;font-size:13px;color:#666;line-height:1.5}
  .topbar .topbar-in{display:flex;justify-content:space-between;align-items:center;padding:8px 0;flex-wrap:nowrap;width:100%;box-sizing:border-box}
  .topbar p{flex:1;min-width:0;margin:0;padding:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:block}
  .topbar-r{flex-shrink:0;display:flex;align-items:center}
  .topbar-r a{color:#666;margin-left:16px;display:inline-block}
  .topbar-r a:first-child{margin-left:0}
  .topbar a:hover{color:#c81623}

  /* 头部 */
  .header{background:#fff;box-shadow:0 2px 6px rgba(0,0,0,.04);position:sticky;top:0;z-index:999}
  .header .wrap{display:flex;justify-content:space-between;align-items:center;padding:16px 0}
  .logo{display:flex;align-items:center}
  .logo img{height:48px;width:auto;display:block}
  .nav ul{display:flex;gap:34px}
  .nav a{font-size:16px;color:#333;font-weight:500}
  .nav a.active,.nav a:hover{color:#c81623}
  .nav ul li a svg,.nav ul li a .arrow{display:none}
  .drawer-head,.drawer-foot{display:none}
  .menu-btn{display:none;font-size:26px;cursor:pointer}

  /* 板块标题 */
  .section{padding:28px 0}
  .sec-head{text-align:center;margin-bottom:32px}
  .sec-head .sec-title{font-size:30px;color:#222;letter-spacing:2px;margin:0}
  .sec-head .sec-title a{color:#222;transition:.3s}
  .sec-head .sec-title a:hover{color:#c81623}
  .sec-head .sec-sub{color:#888;margin-top:10px;font-size:14px}

  /* 底部：黑色 */
  .footer{
    background:
      linear-gradient(180deg,#232426,#0f1012),
      url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='1600' height='400'><defs><pattern id='p' width='60' height='60' patternUnits='userSpaceOnUse'><circle cx='30' cy='30' r='1' fill='%23c81623' opacity='.15'/></pattern></defs><rect width='1600' height='400' fill='%23111'/><rect width='1600' height='400' fill='url(%23p)'/></svg>") center/cover no-repeat,
      #111;
    color:#ccc;
    padding-top:60px;
    position:relative;
    margin-bottom:0 !important;
  }
  .footer::before{content:"";position:absolute;left:0;top:0;width:100%;height:4px;background:linear-gradient(90deg,#c81623,#770000,#c81623)}
  .footer .grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.06)}
  .footer h4{color:#fff;font-size:16px;margin-bottom:18px;letter-spacing:1px}
  .footer p,.footer a{color:#bbb;font-size:14px;line-height:2}
  .footer a:hover{color:#c81623}
  .footer .logo-foot{display:flex;align-items:center;margin-bottom:16px}
  .footer .logo-foot img{height:56px;width:auto}
  .footer .desc{color:#999;font-size:13px;line-height:1.9}

  .contact-info{display:flex;flex-direction:column;gap:0px;}
  .contact-info .row{display:flex;flex-direction:column;gap:0}

  .social{display:flex;gap:12px;margin-top:18px}
  .social a{width:44px;height:44px;background:#2a2b2d;border:1px solid #3a3b3d;border-radius:2px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:13px;transition:.3s}
  .social a:hover{background:#c81623;border-color:#c81623;transform:translateY(-3px)}
  .social a svg{width:60%;height:60%;fill:#fff}

  .copy{text-align:center;padding:24px 0;color:#777;font-size:13px;border-top:1px solid rgba(255,255,255,.06)}
  .copy a{color:#777}
  .copy a:hover{color:#c81623}

  /* 手机底部固定四键导航：黑色背景 */
  .mobile-nav{display:none;position:fixed;bottom:0;left:0;width:100%;height:64px;background:#111;border-top:1px solid #c81623;z-index:998;grid-template-columns:repeat(4,1fr);
    padding-bottom: env(safe-area-inset-bottom,0);
  }
  .mobile-nav a{display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:12px;color:#ccc;gap:4px}
  .mobile-nav a:hover,.mobile-nav a.active{color:#c81623}
  .mobile-nav svg{width:22px;height:22px;fill:#ccc}
  .mobile-nav a:hover svg,.mobile-nav a.active svg{fill:#c81623}

  /* ===== 内页通用 ===== */
  .page-banner{background:linear-gradient(135deg,#7a0d13,#c81623);padding:46px 0;color:#fff;text-align:center}
  .page-banner h1{font-size:32px;letter-spacing:3px;margin-bottom:8px}
  .page-banner h1 em{font-style:normal;color:#ffd9db;font-size:14px;letter-spacing:2px;display:block;margin-top:4px}
  .page-banner p{color:#f2c9cc;font-size:14px}
  .breadcrumb{padding:14px 0;font-size:13px;color:#888;border-bottom:1px solid #f0f0f0;background:#fff}
  .breadcrumb .container{display:flex;justify-content:flex-end;flex-wrap:wrap;gap:0 8px}
  .breadcrumb a{color:#666}
  .breadcrumb a:hover{color:#c81623}
  .breadcrumb .sep{margin:0 8px;color:#ccc}
  .breadcrumb .cur{color:#c81623}
  .page-main{padding:40px 0;min-height:420px}

  /* 新闻列表 */
  .news-list-item{display:flex;gap:26px;padding:24px 0;border-bottom:1px solid #f0f0f0;align-items:center}
  .news-list-item .thumb{width:280px;height:170px;flex-shrink:0;background:#eee;display:flex;align-items:center;justify-content:center;overflow:hidden;border-radius:3px}
  .news-list-item .thumb svg{width:100%;height:100%}
  .news-list-item .info{flex:1;min-width:0}
  .news-list-item .tag{display:inline-block;padding:2px 10px;background:#c81623;color:#fff;font-size:12px;border-radius:2px;margin-bottom:10px}
  .news-list-item h3{font-size:19px;margin-bottom:10px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .news-list-item h3 a{color:#222;transition:.3s}
  .news-list-item h3 a:hover{color:#c81623}
  .news-list-item p{color:#666;font-size:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .news-list-item .date{color:#999;font-size:13px;margin-top:10px}
  .pager{display:flex;justify-content:center;gap:10px;margin-top:34px}
  .pager a,.pager span{display:inline-block;min-width:38px;height:38px;line-height:38px;text-align:center;border:1px solid #ddd;color:#666;font-size:14px;border-radius:2px;transition:.3s}
  .pager a:hover{border-color:#c81623;color:#c81623}
  .pager .cur{background:#c81623;border-color:#c81623;color:#fff}

  /* 新闻详情 */
  .article{background:#fff;border:1px solid #eee;padding:42px 52px}
  .article h1{font-size:26px;text-align:center;margin-bottom:14px;color:#222}
  .article .meta{text-align:center;color:#999;font-size:13px;padding-bottom:20px;border-bottom:1px solid #f0f0f0;margin-bottom:28px}
  .article .content p{color:#444;font-size:15px;line-height:2.1;margin-bottom:16px;text-indent:2em}
  .article .content .picline{text-align:center;margin:22px 0}
  .article .content .picline svg{width:100%;max-width:760px;border-radius:4px}
  .article .pn{display:flex;justify-content:space-between;border-top:1px solid #f0f0f0;margin-top:32px;padding-top:20px;font-size:14px}
  .article .pn a{color:#666;max-width:46%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;transition:.3s}
  .article .pn a:hover{color:#c81623}
  .article .pn .next{text-align:right}

  /* 产品列表 */
  .product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
  .page-main .product-grid{grid-template-columns:repeat(3,1fr)}
  .pro-card{border:1px solid #eee;background:#fff;border-radius:4px;overflow:hidden;transition:.3s;display:flex;flex-direction:column}
  .pro-card:hover{transform:translateY(-4px);box-shadow:0 10px 24px rgba(0,0,0,.08);border-color:#c81623}
  .pro-card .pic{height:240px;background:#f5f5f5;display:flex;align-items:center;justify-content:center;overflow:hidden;flex-shrink:0}
  .pro-card .pic img{width:100%;height:100%;object-fit:contain;display:block}
  .pro-card .pic .no-thumb{color:#bbb;font-size:14px;padding:0 12px;text-align:center}
  .pro-card .info{padding:18px;text-align:center;flex:1}
  .pro-card h3{font-size:16px;color:#333;margin-bottom:8px;font-weight:600}
  .pro-card .price{color:#c81623;font-size:15px;font-weight:bold}

  /* 产品详情 */
  .pd-top{display:flex;gap:40px;background:#fff;border:1px solid #eee;padding:36px;align-items:flex-start;flex-wrap:nowrap}
  .pd-top .pic{width:44%;height:420px;background:#f5f5f5;display:flex;align-items:center;justify-content:center;flex-shrink:0;overflow:hidden}
  .pd-top .pic img{width:100%;height:100%;object-fit:contain;display:block}
  .pd-top .pic svg{width:80%;height:80%}
  .pd-info{flex:1;min-width:0}
  .pd-info h1{font-size:26px;color:#222;margin-bottom:8px;word-break:break-word}
  .pd-info .model{color:#888;font-size:14px;margin-bottom:16px}
  .pd-info .price{color:#c81623;font-size:28px;font-weight:bold;margin:14px 0}
  .pd-price-row{display:flex;align-items:center;gap:18px;margin:14px 0;flex-wrap:wrap}
  .pd-price-row .price{margin:0}
  .buy-btn{background:#c81623;color:#fff;padding:10px 32px;font-size:15px;border-radius:2px;transition:.3s;flex-shrink:0;display:inline-block}
  .buy-btn:hover{background:#a7121d}
  .pd-info .tags{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0}
  .pd-info .tags span{border:1px solid #c81623;color:#c81623;font-size:12px;padding:4px 12px;border-radius:2px}
  .pd-info .desc-txt{color:#666;font-size:14px;line-height:1.9;margin-top:16px;word-break:break-word}
  .pd-params{width:100%;border-collapse:collapse;margin-top:22px}
  .pd-params td{border:1px solid #eee;padding:10px 14px;font-size:14px;color:#44px;word-break:break-word}
  .pd-params td:first-child{background:#fafafa;color:#888;width:130px}
  .pd-detail{margin-top:26px;background:#fff;border:1px solid #eee;padding:36px;overflow:hidden}
  .pd-detail h3{font-size:20px;color:#222;margin-bottom:18px;border-left:4px solid #c81623;padding-left:12px}
  .pd-detail p{color:#444;line-height:2.1;font-size:14px;text-indent:2em;margin-bottom:14px}
  .pd-detail img{max-width:100%;height:auto;display:block;margin:10px auto}
  .pd-detail table{max-width:100%;width:100%;table-layout:fixed;border-collapse:collapse;margin:14px 0}
  .pd-detail table td,.pd-detail table th{border:1px solid #eee;padding:8px 12px;font-size:14px;word-break:break-word;vertical-align:top}
  .pd-detail table th{background:#fafafa;font-weight:600}
  /* 上下篇导航 */
  .pn{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;margin-top:26px;background:#fff;border:1px solid #eee;padding:18px 24px}
  .pn a{color:#666;font-size:14px;max-width:48%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;transition:.3s}
  .pn a:hover{color:#c81623}
  .pn .next{text-align:right;margin-left:auto}

  /* 关于我们 */
  .about-box{display:flex;gap:40px;background:#fff;border:1px solid #eee;padding:40px;align-items:center}
  .about-box .pic{width:42%;height:330px;background:#f5f5f5;display:flex;align-items:center;justify-content:center;flex-shrink:0}
  .about-box .txt{flex:1}
  .about-box .txt h3{font-size:22px;color:#c81623;margin-bottom:16px}
  .about-box .txt p{color:#555;font-size:14px;line-height:2;text-indent:2em;margin-bottom:14px}
  .about-sub{margin-top:36px}
  .about-sub h3{font-size:22px;text-align:center;margin-bottom:26px;color:#222;letter-spacing:2px}
  .about-sub h3 em{color:#c81623;font-style:normal}
  .timeline{position:relative;max-width:860px;margin:0 auto;padding-left:30px}
  .timeline::before{content:"";position:absolute;left:8px;top:6px;bottom:6px;width:2px;background:#e5e5e5}
  .tl-item{position:relative;padding:0 0 28px 26px}
  .tl-item::before{content:"";position:absolute;left:-26px;top:6px;width:14px;height:14px;border-radius:50%;background:#fff;border:3px solid #c81623}
  .tl-item .yr{font-size:20px;color:#c81623;font-weight:bold}
  .tl-item .tt{font-size:16px;color:#222;font-weight:600;margin:2px 0 6px}
  .tl-item .ds{color:#888;font-size:14px;line-height:1.8}
  .honor-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:8px}
  .honor-card{border:1px solid #eee;background:#fff;padding:30px 20px;text-align:center;transition:.3s}
  .honor-card:hover{box-shadow:0 10px 24px rgba(0,0,0,.06);border-color:#c81623}
  .honor-card .ico{width:54px;height:54px;margin:0 auto 14px;background:#fdf2f2;border-radius:50%;display:flex;align-items:center;justify-content:center}
  .honor-card .ico svg{width:28px;height:28px;fill:#c81623}
  .honor-card h4{font-size:15px;margin-bottom:8px;color:#222}
  .honor-card p{color:#999;font-size:12px;line-height:1.7}

  /* 购买渠道 */
  .channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
  .channel-card{border:1px solid #eee;background:#fff;padding:36px 28px;text-align:center;transition:.3s}
  .channel-card:hover{box-shadow:0 10px 24px rgba(0,0,0,.06);border-color:#c81623;transform:translateY(-3px)}
  .channel-card .ico{width:66px;height:66px;margin:0 auto 18px;background:#fdf2f2;border-radius:50%;display:flex;align-items:center;justify-content:center}
  .channel-card .ico svg{width:32px;height:32px;fill:#c81623}
  .channel-card h3{font-size:18px;margin-bottom:10px;color:#222}
  .channel-card p{color:#888;font-size:13px;line-height:1.8}
  .channel-tip{margin-top:30px;background:#fdf6f6;border:1px solid #f3d9d9;color:#8a4b4b;font-size:13px;padding:16px 20px;border-radius:3px;line-height:1.9}

  /* 关注我们 */
  .follow-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:22px}
  .follow-card{border:1px solid #eee;background:#fff;padding:34px 18px;text-align:center;transition:.3s}
  .follow-card:hover{box-shadow:0 10px 24px rgba(0,0,0,.06);border-color:#c81623;transform:translateY(-3px)}
  .follow-card .ico{width:64px;height:64px;margin:0 auto 16px;background:#2a2b2d;border-radius:6px;display:flex;align-items:center;justify-content:center}
  .follow-card .ico svg{width:32px;height:32px;fill:#fff}
  .follow-card h3{font-size:16px;margin-bottom:8px;color:#222}
  .follow-card p{color:#999;font-size:12px;line-height:1.7}

  /* 联系我们 */
  .contact-wrap{display:block}
  .company-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
  .contact-info-box{background:#fff;border:1px solid #eee;padding:30px 34px}
  .contact-info-box h3{font-size:18px;color:#222;margin-bottom:20px;border-left:4px solid #c81623;padding-left:12px}
  .co-head{display:flex;align-items:center;justify-content:space-between;border-bottom:2px solid #f3caca;padding-bottom:14px;margin-bottom:20px}
  .co-head h3{font-size:19px;color:#c81623;border:none;padding:0;margin:0}
  .co-head span{font-size:12px;color:#c81623;background:#fdf2f2;border:1px solid #f3caca;padding:3px 10px;border-radius:2px;white-space:nowrap}
  .ci-item{display:flex;align-items:flex-start;margin-bottom:20px}
  .ci-item .ico{width:42px;height:42px;background:#fdf2f2;border-radius:4px;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-right:14px}
  .ci-item .ico svg{width:20px;height:20px;fill:#c81623}
  .ci-item h4{font-size:14px;color:#888;font-weight:normal}
  .ci-item p{font-size:15px;color:#222;margin-top:2px}
  .contact-form{flex:1;background:#fff;border:1px solid #eee;padding:34px}
  .contact-form h3{font-size:18px;color:#222;margin-bottom:20px;border-left:4px solid #c81623;padding-left:12px}
  .form-row{display:flex;gap:14px;margin-bottom:16px}
  .form-row input,.form-row textarea{flex:1;border:1px solid #ddd;padding:12px;font-size:14px;font-family:inherit;outline:none;transition:.3s}
  .form-row input:focus,.form-row textarea:focus{border-color:#c81623}
  .form-row textarea{min-height:130px;resize:vertical}
  .form-btn{background:#c81623;color:#fff;border:none;padding:12px 44px;cursor:pointer;font-size:15px;border-radius:2px;transition:.3s}
  .form-btn:hover{background:#a7121d}

  /* 搜索 */
  .search-hero{background:#fff;border:1px solid #eee;padding:56px 40px;text-align:center}
  .search-hero .box{max-width:680px;margin:0 auto;display:flex}
  .search-hero input{flex:1;border:2px solid #ddd;border-right:none;padding:14px 20px;font-size:16px;outline:none;transition:.3s;font-family:inherit}
  .search-hero input:focus{border-color:#c81623}
  .search-hero button{background:#c81623;color:#fff;border:none;padding:0 40px;font-size:16px;cursor:pointer;transition:.3s}
  .search-hero button:hover{background:#a7121d}

  /* banner下方搜索栏 */
  .page-search-bar{background:#fff;border-bottom:1px solid #f0f0f0;padding:20px 0}
  .page-search-bar .search-form{max-width:520px;margin:0 0 0 auto;display:flex}
  .page-search-bar .search-form input{flex:1;border:2px solid #ddd;border-right:none;padding:12px 18px;font-size:15px;outline:none;transition:.3s;font-family:inherit;border-radius:2px 0 0 2px;min-width:0}
  .page-search-bar .search-form input:focus{border-color:#c81623}
  .page-search-bar .search-form button{background:#c81623;color:#fff;border:none;padding:0 34px;font-size:15px;cursor:pointer;transition:.3s;border-radius:0 2px 2px 0;flex-shrink:0;white-space:nowrap}
  .page-search-bar .search-form button:hover{background:#a7121d}
  .search-tags{margin-top:20px;font-size:13px;color:#999;display:flex;justify-content:center;align-items:center;gap:10px;flex-wrap:wrap}
  .search-tags a{color:#c81623;border:1px solid #f3caca;background:#fdf2f2;padding:5px 14px;border-radius:20px;transition:.3s}
  .search-tags a:hover{background:#c81623;color:#fff}
  .result-info{background:#fff;border:1px solid #eee;padding:16px 22px;font-size:14px;color:#666}
  .result-info b{color:#c81623;font-size:16px}
  .block-title{font-size:18px;color:#222;margin:26px 0 16px;display:flex;align-items:center;gap:8px}
  .block-title .dot{width:8px;height:8px;background:#c81623;display:inline-block;flex-shrink:0}
  .block-title span.txt{font-size:13px;color:#999;font-weight:normal}

  /* 电子说明书 */
  .doc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
  .doc-card{border:1px solid #eee;background:#fff;padding:30px 22px;text-align:center;transition:.3s}
  .doc-card:hover{box-shadow:0 10px 24px rgba(0,0,0,.06);border-color:#c81623;transform:translateY(-3px)}
  .doc-card .ico{width:58px;height:58px;margin:0 auto 16px;background:#fdf2f2;border-radius:50%;display:flex;align-items:center;justify-content:center}
  .doc-card .ico svg{width:30px;height:30px;fill:#c81623}
  .doc-card h3{font-size:17px;margin-bottom:6px;color:#222}
  .doc-card p{color:#999;font-size:13px}
  .doc-card p.fs{margin-top:4px;font-size:12px;color:#bbb}
  .doc-btn{display:inline-block;margin-top:16px;border:1px solid #c81623;color:#c81623;padding:7px 26px;font-size:13px;border-radius:2px;transition:.3s}
  .doc-btn:hover{background:#c81623;color:#fff}

  /* 响应式 */
  @media(max-width:960px){
    .product-grid{grid-template-columns:repeat(2,1fr)}
    .footer .grid{grid-template-columns:1fr 1fr}
    .about-box{flex-direction:column}
    .about-box .pic{width:100%;height:260px}
    .honor-grid{grid-template-columns:repeat(2,1fr)}
    .channel-grid{grid-template-columns:repeat(2,1fr)}
    .follow-grid{grid-template-columns:repeat(3,1fr)}
    .contact-wrap{flex-direction:column}
    .company-grid{grid-template-columns:1fr}
    .contact-info-box{width:100%}
    .pd-top{flex-direction:column}
    .pd-top .pic{width:100%;height:320px}
    .doc-grid{grid-template-columns:repeat(2,1fr)}
  }
  @media(max-width:768px){
    /* 手机端顶部优化 */
    .topbar .topbar-in{font-size:11px;flex-wrap:nowrap;gap:0;padding:6px 0}
    .topbar p{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin:0;padding:0}
    .topbar .topbar-r{display:flex;align-items:center}
    .topbar .topbar-r a{margin-left:10px;font-size:11px}
    .topbar .topbar-r a:first-child{margin-left:0}
    .header .wrap{padding:12px 0}
    .logo img{height:38px}
    body{padding-bottom:calc(64px + env(safe-area-inset-bottom, 0px));}
    .nav{position:fixed;top:0;right:-100%;width:78%;max-width:330px;height:100vh;height:100dvh;background:#fff;box-shadow:0 0 24px rgba(0,0,0,.18);transition:right .32s ease;z-index:1001;display:flex;flex-direction:column;overflow-y:auto;padding:0}
    .nav.open{right:0}
    .drawer-head{display:flex;align-items:center;justify-content:space-between;padding:20px 22px;background:linear-gradient(135deg,#d9202e,#8a0f18)}
    .drawer-brand{display:flex;flex-direction:column;gap:2px}
    .drawer-brand .cn{font-size:18px;font-weight:700;color:#fff;letter-spacing:2px}
    .drawer-brand .en{font-size:11px;color:rgba(255,255,255,.75);letter-spacing:1px}
    .drawer-close{width:32px;height:32px;border:1px solid rgba(255,255,255,.5);border-radius:50%;color:#fff;font-size:14px;line-height:30px;text-align:center;cursor:pointer;flex-shrink:0}
    .nav ul{display:flex;flex-direction:column;gap:0;padding:10px 0;margin:0;flex:1}
    .nav ul li{border-bottom:1px solid #f3f3f3}
    .nav ul li a{display:flex;align-items:center;gap:14px;padding:15px 22px;font-size:15px;color:#333;border-left:3px solid transparent;transition:.25s}
    .nav ul li a svg{width:20px;height:20px;fill:#999;flex-shrink:0;transition:.25s;display:block}
    .nav ul li a span{flex:1}
    .nav ul li a .arrow{font-size:14px;color:#ccc;display:block}
    .nav ul li a:hover{background:#fdf2f2;color:#c81623}
    .nav ul li a:hover svg{fill:#c81623}
    .nav ul li a.active{background:#fdf2f2;color:#c81623;border-left-color:#c81623;font-weight:600}
    .nav ul li a.active svg{fill:#c81623}
    .drawer-foot{display:block;padding:18px 22px 26px;border-top:1px solid #f0f0f0}
    .drawer-foot p{font-size:13px;color:#888;margin-bottom:12px}
    .drawer-foot p b{color:#c81623;font-size:15px;font-weight:600}
    .drawer-social{display:flex;gap:10px}
    .drawer-social a{width:34px;height:34px;border-radius:6px;background:#f5f5f5;display:flex;align-items:center;justify-content:center;transition:.25s}
    .drawer-social a svg{width:18px;height:18px;fill:#666;transition:.25s}
    .drawer-social a:hover{background:#c81623}
    .drawer-social a:hover svg{fill:#fff}
    .menu-btn{display:block;z-index:1002}
    .nav-mask{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.45);z-index:1000}
    .nav-mask.show{display:block}
    .product-grid{grid-template-columns:repeat(2,1fr)}
    .footer{padding-top:36px}
    .footer .grid{grid-template-columns:1fr;gap:18px;padding-bottom:28px}
    .footer .grid > div:nth-child(2),
    .footer .grid > div:nth-child(3){display:none}
    .footer .grid > div:first-child{text-align:center}
    .footer .logo-foot{justify-content:center}
    .footer .desc{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;text-align:center}
    .contact-info{flex-direction:column;align-items:center;gap:6px}
    .contact-info .row{flex-direction:row;flex-wrap:wrap;justify-content:center;gap:0 16px}
    .mobile-nav{display:grid}
    .page-banner{padding:32px 0}
    .page-banner h1{font-size:24px}
    .page-main{padding:24px 0}
    .news-list-item{flex-direction:column;align-items:flex-start}
    .news-list-item .thumb{width:100%;height:auto}
    .news-list-item .thumb svg{width:100%}
    .article{padding:24px 20px}
    .article h1{font-size:21px}
    .article .pn{flex-direction:column;gap:10px}
    .article .pn .next{text-align:left}
    .pd-params td:first-child{width:96px}
    .honor-grid{grid-template-columns:repeat(2,1fr)}
    .channel-grid{grid-template-columns:1fr}
    .follow-grid{grid-template-columns:repeat(2,1fr)}
    .form-row{flex-direction:column;gap:12px}
    .form-row input,.form-row textarea{font-size:16px}
    .doc-grid{grid-template-columns:1fr}
    .search-hero{padding:34px 16px}
    .search-hero .box{flex-direction:column;gap:10px}
    .search-hero button{padding:12px 0;font-size:15px}
    .search-hero input{border-right:2px solid #ddd;font-size:16px}
    .search-tags{gap:8px}
    /* banner下方搜索栏-手机端 */
    .page-search-bar{padding:16px 0}
    .page-search-bar .search-form{max-width:100%;margin:0;flex-direction:column;gap:10px}
    .page-search-bar .search-form input{border-right:2px solid #ddd;border-radius:2px;font-size:15px}
    .page-search-bar .search-form button{padding:12px 0;border-radius:2px;font-size:15px}
    /* 面包屑-手机端 */
    .breadcrumb .container{justify-content:flex-start;font-size:12px}
    /* 产品详情-手机端 */
    .pd-top{padding:20px;gap:20px}
    .pd-top .pic{height:280px}
    .pd-info h1{font-size:20px}
    .pd-info .price{font-size:22px}
    .pd-detail{padding:20px}
    .pd-detail h3{font-size:17px}
    .pn{padding:14px 16px;flex-direction:column;align-items:flex-start;gap:8px}
    .pn a{max-width:100%;font-size:13px}
    .pn .next{text-align:left;margin-left:0}
  }