:root{
      --theme:#0B3D91;
      --ink:#152536;
      --muted:#64748b;
      --line:#dce5ef;
      --soft:#f4f7fb;
      --white:#fff;
      --accent:#d79528;
      --shadow:0 14px 38px rgba(15,38,66,.09);
      --radius:14px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:#f7f9fc;font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button{font:inherit}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}

    .topbar{background:#10283f;color:#d6e0ea;font-size:13px}
    .topbar .container{min-height:36px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .topbar strong{color:#fff}
    .topbar-links{display:flex;gap:22px}
    .topbar a:hover{color:#fff}

    .header{position:relative;z-index:20;background:#fff;border-bottom:1px solid #e8edf3}
    .header-inner{height:76px;display:flex;align-items:center;gap:35px}
    .logo{display:flex;align-items:center;gap:10px;color:var(--theme);font-size:19px;font-weight:800;white-space:nowrap}
    .logo img{width:38px;height:38px;object-fit:contain}
    .main-nav{flex:1}
    .nav-list{display:flex;align-items:stretch;justify-content:center;gap:4px;margin:0;padding:0;list-style:none}
    .nav-item{position:relative}
    .nav-link{display:flex;align-items:center;height:76px;padding:0 14px;color:#30445a;font-size:15px;white-space:nowrap}
    .nav-link:hover,.nav-link:focus{color:var(--theme)}
    .has-arrow:after{content:"";width:6px;height:6px;margin:0 0 3px 8px;border-right:1px solid currentColor;border-bottom:1px solid currentColor;transform:rotate(45deg)}
    .dropdown-panel,.mega-menu{position:absolute;top:calc(100% + 1px);left:50%;transform:translate(-50%,8px);visibility:hidden;opacity:0;transition:.2s ease;background:#fff;border:1px solid #e3eaf2;border-radius:0 0 12px 12px;box-shadow:var(--shadow);padding:22px;z-index:30}
    .dropdown-panel{width:290px}
    .mega-menu{width:620px}
    .nav-item:hover .dropdown-panel,.nav-item:focus-within .dropdown-panel,.nav-item:hover .mega-menu,.nav-item:focus-within .mega-menu{visibility:visible;opacity:1;transform:translate(-50%,0)}
    .dropdown-panel:before,.mega-menu:before{content:"";position:absolute;left:0;right:0;top:-10px;height:10px}
    .mega-title{margin:0 0 13px;color:var(--theme);font-weight:800;font-size:14px}
    .dropdown-panel>a{display:block;padding:8px 0;border-bottom:1px solid #eef2f6;font-size:13px}
    .dropdown-panel>a:hover{color:var(--theme)}
    .mega-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
    .mega-card{display:flex;gap:9px;min-height:58px;padding:9px;border:1px solid #e8edf3;border-radius:9px;background:#fbfcfe}
    .mega-card:hover{border-color:#9bb6da;background:#f4f8fd}
    .mega-card img{width:34px;height:34px;object-fit:cover;border-radius:6px;flex:none}
    .mega-card span{min-width:0}
    .mega-card b,.mega-card small{display:block;overflow:hidden;text-overflow:ellipsis}
    .mega-card b{font-size:12px;white-space:nowrap}
    .mega-card small{color:var(--muted);font-size:10px;line-height:1.45}
    .mega-footer{display:block;margin-top:15px;color:var(--theme);font-size:13px;font-weight:700;text-align:right}
    .header-btns{display:flex;align-items:center;gap:12px;white-space:nowrap}
    .member-link{color:var(--theme);font-size:13px}
    .account-btn{padding:9px 15px;border-radius:7px;background:var(--theme);color:#fff;font-size:13px}
    .account-btn:hover{background:#082e70}
    .hamburger{display:none;width:40px;height:38px;padding:8px;border:1px solid #dbe4ee;border-radius:7px;background:#fff;cursor:pointer}
    .hamburger span{display:block;width:22px;height:2px;margin:4px auto;background:var(--theme);transition:.2s}
    .hamburger.active span:nth-child(1){transform:translateY(6px) rotate(45deg)}
    .hamburger.active span:nth-child(2){opacity:0}
    .hamburger.active span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

    .drawer-overlay{display:none;position:fixed;inset:0;background:rgba(5,20,38,.48);z-index:40}
    .drawer-overlay.open{display:block}
    .mobile-drawer{position:fixed;top:0;right:0;width:min(360px,88vw);height:100vh;background:#fff;z-index:50;transform:translateX(105%);transition:.25s ease;overflow:auto;box-shadow:-10px 0 28px rgba(0,0,0,.16)}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{display:flex;align-items:center;gap:14px;padding:20px;border-bottom:1px solid var(--line);color:var(--theme);font-weight:800}
    .drawer-head span{flex:1}
    .drawer-head a{padding:5px 10px;background:var(--theme);color:#fff;border-radius:5px;font-size:13px}
    .drawer-close{border:0;background:transparent;color:#536579;font-size:28px;line-height:1;cursor:pointer}
    .drawer-menu{padding:12px 20px 30px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:13px 0;border:0;border-bottom:1px solid #edf1f5;background:transparent;text-align:left;color:#253b52;font-size:15px;cursor:pointer}
    .drawer-toggle:after{content:"+";float:right;color:var(--theme);font-size:20px}
    .drawer-toggle.active:after{content:"−"}
    .drawer-submenu{display:none;padding:5px 0 8px 15px}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:7px 0;color:var(--muted);font-size:13px}

    .productlist-main{padding:0 0 78px}
    .page-hero{padding:65px 0 52px;background:linear-gradient(135deg,#eef4fc 0%,#fff 58%,#f7f9fc 100%);border-bottom:1px solid #e7edf4}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--theme);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before{content:"";width:25px;height:2px;background:var(--accent)}
    .page-hero h1{max-width:760px;margin:13px 0 12px;font-size:clamp(30px,4vw,48px);line-height:1.2;letter-spacing:-.04em}
    .page-hero p{max-width:690px;margin:0;color:var(--muted);font-size:16px}
    .product-toolbar{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:35px 0 20px}
    .product-toolbar h2{margin:0;font-size:23px}
    .product-toolbar p{margin:0;color:var(--muted);font-size:13px}
    .category-list{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 28px;padding:0;list-style:none}
    .category-list a{display:block;padding:8px 16px;border:1px solid #d7e1ec;border-radius:99px;background:#fff;color:#52657a;font-size:13px;transition:.2s}
    .category-list a:hover,.category-list a.active{border-color:var(--theme);background:var(--theme);color:#fff}
    .product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
    .product-card{display:flex;flex-direction:column;min-width:0;overflow:hidden;background:#fff;border:1px solid #e4eaf1;border-radius:var(--radius);box-shadow:0 5px 18px rgba(25,49,76,.04);transition:.22s}
    .product-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#b7cbe4}
    .product-cover{height:190px;padding:20px;background:#edf3fa;display:flex;align-items:center;justify-content:center}
    .product-cover img{width:100%;height:100%;object-fit:contain}
    .product-body{display:flex;flex:1;flex-direction:column;padding:20px}
    .product-meta{display:flex;justify-content:space-between;gap:10px;color:#8796a7;font-size:12px}
    .product-card h3{margin:9px 0 8px;color:#1d334a;font-size:19px;line-height:1.4}
    .product-card h3 a:hover{color:var(--theme)}
    .product-summary{display:-webkit-box;overflow:hidden;margin:0 0 16px;color:var(--muted);font-size:13px;line-height:1.75;-webkit-box-orient:vertical;-webkit-line-clamp:3}
    .product-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;padding-top:14px;border-top:1px solid #edf1f5}
    .product-price{color:var(--accent);font-size:14px;font-weight:800}
    .product-link{color:var(--theme);font-size:13px;font-weight:700}
    .pagination{display:flex;justify-content:center;gap:8px;margin-top:42px}
    .pagination a{min-width:36px;padding:6px 11px;border:1px solid #d7e1ec;border-radius:6px;background:#fff;text-align:center;color:#506176;font-size:13px}
    .pagination a:hover,.pagination a.current,.pagination a.active{background:var(--theme);border-color:var(--theme);color:#fff}

    .footer{padding:54px 0 20px;background:#10283f;color:#b7c6d4}
    .footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1fr;gap:34px}
    .footer h3{margin:0 0 12px;color:#fff;font-size:20px}
    .footer h4{margin:0 0 14px;color:#fff;font-size:14px}
    .footer p{margin:0 0 8px;color:#9db0c2;font-size:13px}
    .footer a{display:block;margin:5px 0;color:#b7c6d4;font-size:13px}
    .footer a:hover{color:#fff}
    .footer-brand>a{display:inline-block;margin-right:12px}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:38px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);color:#8298ac;font-size:12px}

    @media (max-width:900px){
      .main-nav{display:none}
      .hamburger{display:block}
      .member-link{display:none}
      .header-inner{justify-content:space-between}
      .product-grid{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width:600px){
      .container{width:min(100% - 28px,1180px)}
      .topbar .container{align-items:flex-start;flex-direction:column;gap:0;padding:7px 0}
      .topbar-links{gap:12px;flex-wrap:wrap}
      .header-inner{height:65px;gap:10px}
      .nav-link{height:65px}
      .page-hero{padding:43px 0 35px}
      .page-hero h1{font-size:32px}
      .product-toolbar{align-items:flex-start;flex-direction:column;margin-top:28px}
      .product-grid{grid-template-columns:1fr;gap:16px}
      .product-cover{height:175px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:25px 16px}
      .footer-bottom{align-items:flex-start;flex-direction:column;gap:5px}
    }