:root{
      --theme:#0B3D91;
      --ink:#172033;
      --muted:#687386;
      --paper:#f7f9fc;
      --line:#e4e9f1;
      --white:#fff;
      --shadow:0 12px 32px rgba(21,45,86,.09);
      --radius:14px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:#f5f7fb;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% - 36px));margin:0 auto}

    .topbar{background:#10284d;color:#dce8f8;font-size:13px}
    .topbar .container{min-height:38px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .topbar a{color:#fff}

    .header{position:relative;z-index:20;background:#fff;border-bottom:1px solid var(--line)}
    .header-inner{min-height:76px;display:flex;align-items:center;gap:30px}
    .logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--theme);font-size:20px;font-weight:800}
    .logo img{width:38px;height:38px;object-fit:contain}
    .main-nav{flex:1}
    .nav-list{display:flex;align-items:center;justify-content:center;gap:4px;margin:0;padding:0;list-style:none}
    .nav-item{position:relative}
    .nav-link{display:block;padding:25px 13px;color:#26344c;font-size:14px;white-space:nowrap}
    .nav-link:hover,.nav-link:focus{color:var(--theme)}
    .has-arrow:after{content:"⌄";margin-left:6px;font-size:12px;color:#8490a3}
    .dropdown-panel,.mega-menu{position:absolute;top:calc(100% + 1px);left:50%;z-index:30;width:310px;padding:20px;background:#fff;border:1px solid var(--line);border-radius:0 0 12px 12px;box-shadow:var(--shadow);opacity:0;visibility:hidden;transform:translate(-50%,8px);transition:.2s}
    .mega-menu{width:580px}
    .nav-item:hover>.dropdown-panel,.nav-item:focus-within>.dropdown-panel,
    .nav-item:hover>.mega-menu,.nav-item:focus-within>.mega-menu{opacity:1;visibility:visible;transform:translate(-50%,0)}
    .dropdown-panel:before,.mega-menu:before{content:"";position:absolute;left:0;right:0;top:-12px;height:12px}
    .menu-title{margin:0 0 10px;color:var(--theme);font-weight:800;font-size:14px}
    .menu-list{display:grid;gap:5px}
    .menu-list a{display:block;padding:6px 8px;border-radius:7px;font-size:13px}
    .menu-list a:hover{background:#eef4fd;color:var(--theme)}
    .mega-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
    .mega-card{display:block;padding:10px;border:1px solid var(--line);border-radius:9px;background:#fbfcfe;font-size:12px}
    .mega-card:hover{border-color:#a7bee3;background:#f2f7ff}
    .mega-card img{width:32px;height:32px;object-fit:contain;margin-bottom:5px}
    .mega-card b{font-size:12px}
    .mega-card small{color:var(--muted);font-size:10px}
    .mega-footer{display:inline-block;margin-top:14px;color:var(--theme);font-size:13px;font-weight:700}
    .header-btns{display:flex;align-items:center;gap:10px;white-space:nowrap}
    .member,.open-account{display:inline-flex;align-items:center;justify-content:center;border-radius:7px;padding:7px 12px;font-size:13px}
    .member{color:var(--theme);border:1px solid #cbd9ee}
    .open-account{background:var(--theme);color:#fff}
    .hamburger{display:none;width:40px;height:38px;border:1px solid var(--line);background:#fff;border-radius:7px;padding:8px;cursor:pointer}
    .hamburger span{display:block;height:2px;background:var(--theme);margin:4px 0;transition:.2s}

    .drawer-overlay{display:none;position:fixed;inset:0;background:rgba(9,22,42,.52);z-index:50}
    .drawer-overlay.open{display:block}
    .mobile-drawer{position:fixed;top:0;right:0;bottom:0;z-index:51;width:min(360px,88vw);padding:18px;background:#fff;overflow-y:auto;transform:translateX(100%);transition:.25s;box-shadow:-10px 0 30px rgba(0,0,0,.15)}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{display:flex;align-items:center;gap:10px;padding-bottom:16px;border-bottom:1px solid var(--line);font-weight:800}
    .drawer-head span{flex:1}
    .drawer-head a{padding:5px 10px;background:var(--theme);color:#fff;border-radius:6px;font-size:13px}
    .drawer-close{border:0;background:transparent;font-size:28px;line-height:1;color:#65738a;cursor:pointer}
    .drawer-menu{padding-top:12px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:12px 4px;border:0;border-bottom:1px solid #edf0f5;background:none;text-align:left;color:var(--ink);font-size:15px}
    .drawer-toggle{cursor:pointer;font-weight:700}
    .drawer-toggle:after{content:"＋";float:right;color:var(--theme)}
    .drawer-toggle.active:after{content:"－"}
    .drawer-submenu{display:none;padding:4px 12px 8px;background:#f7f9fc}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:7px 0;color:var(--muted);font-size:13px}

    .productlist-main{padding:54px 0 80px}
    .productlist-main .page-heading{text-align:center;max-width:760px;margin:0 auto 30px}
    .productlist-main .eyebrow{display:inline-block;padding:4px 12px;border-radius:20px;background:#eaf1fb;color:var(--theme);font-size:12px;font-weight:800;letter-spacing:.08em}
    .productlist-main h1{margin:12px 0 8px;font-size:clamp(30px,4vw,46px);line-height:1.25;color:#102b55}
    .productlist-main .lead{margin:0;color:var(--muted);font-size:16px}
    .product-categories{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin:0 auto 34px}
    .product-categories a{padding:8px 17px;border:1px solid #cbd9ec;border-radius:30px;background:#fff;color:#31547f;font-size:13px;transition:.2s}
    .product-categories a:hover,.product-categories a.active{background:var(--theme);border-color: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;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:0 5px 18px rgba(23,46,82,.04);transition:.2s}
    .product-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#b9cce6}
    .product-cover{height:190px;background:#edf3fb;overflow:hidden}
    .product-cover img{width:100%;height:100%;object-fit:cover}
    .product-body{display:flex;flex:1;flex-direction:column;padding:19px}
    .product-meta{display:flex;justify-content:space-between;gap:10px;color:#7b8799;font-size:12px}
    .product-body h2{margin:9px 0 8px;color:#173d74;font-size:19px;line-height:1.4}
    .product-summary{display:-webkit-box;overflow:hidden;margin:0;color:var(--muted);font-size:14px;line-height:1.75;-webkit-box-orient:vertical;-webkit-line-clamp:3}
    .product-footer{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:auto;padding-top:17px}
    .product-price{color:#d17820;font-weight:800;font-size:13px}
    .product-link{color:var(--theme);font-size:13px;font-weight:800}
    .product-link:after{content:" →";transition:.2s}
    .product-link:hover:after{padding-left:4px}
    .pagination{display:flex;justify-content:center;gap:8px;margin-top:38px;flex-wrap:wrap}
    .pagination a{min-width:36px;padding:6px 11px;text-align:center;border:1px solid var(--line);border-radius:7px;background:#fff;color:#53647c;font-size:13px}
    .pagination a:hover,.pagination a.active{background:var(--theme);border-color:var(--theme);color:#fff}

    .footer{background:#10284d;color:#cad7e9;padding:52px 0 20px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px}
    .footer h3{margin:0 0 13px;color:#fff;font-size:17px}
    .footer p{margin:0 0 10px;font-size:13px;line-height:1.8}
    .footer a{display:block;margin:5px 0;color:#cad7e9;font-size:13px}
    .footer a:hover{color:#fff}
    .footer-bottom{margin-top:35px;padding-top:18px;border-top:1px solid rgba(255,255,255,.15);font-size:12px;color:#9eb0c9;text-align:center}

    @media (max-width:980px){
      .main-nav{display:none}
      .hamburger{display:block}
      .header-btns{margin-left:auto}
      .product-grid{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width:620px){
      .container{width:min(100% - 28px,1180px)}
      .topbar .container{min-height:48px;align-items:flex-start;justify-content:center;flex-direction:column;gap:0;padding:7px 0}
      .topbar span{font-size:11px}
      .logo span{font-size:17px}
      .member{display:none}
      .productlist-main{padding:38px 0 58px}
      .productlist-main h1{font-size:30px}
      .productlist-main .lead{font-size:14px}
      .product-grid{grid-template-columns:1fr;gap:16px}
      .product-cover{height:180px}
      .footer-grid{grid-template-columns:1fr;gap:22px}
      .mega-grid{grid-template-columns:repeat(2,1fr)}
    }