:root{
      --theme:#0B3D91;
      --ink:#172033;
      --muted:#667085;
      --line:#e5eaf1;
      --soft:#f5f8fc;
      --white:#fff;
      --shadow:0 14px 40px rgba(16,38,72,.09);
      --radius:16px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:#fff;font:15px/1.7 Arial,"Microsoft YaHei","PingFang SC",sans-serif}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button{font:inherit}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .topbar{background:#10243e;color:#dce8f7;font-size:13px}
    .topbar .container{min-height:36px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .topbar a{margin-left:20px;color:#fff}
    .header{position:relative;z-index:20;background:#fff;border-bottom:1px solid var(--line)}
    .header-inner{height:76px;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:10px;white-space:nowrap;font-size:19px;font-weight:800;color:var(--theme)}
    .logo img{width:36px;height:36px;object-fit:contain}
    .main-nav{margin-left:auto}
    .nav-list{display:flex;align-items:center;gap:4px;padding:0;margin:0;list-style:none}
    .nav-item{position:relative}
    .nav-link{display:block;padding:25px 13px;color:#344054;font-weight:600;white-space:nowrap}
    .nav-link:hover,.nav-link:focus{color:var(--theme)}
    .has-arrow:after{content:"⌄";font-size:12px;margin-left:6px;color:#98a2b3}
    .dropdown-panel,.mega-menu{
      position:absolute;top:calc(100% + 1px);left:50%;transform:translateX(-50%);
      width:310px;padding:20px;background:#fff;border:1px solid var(--line);
      border-radius:0 0 14px 14px;box-shadow:var(--shadow);opacity:0;visibility:hidden;
      transition:.2s;z-index:30
    }
    .mega-menu{width:570px}
    .nav-item:after{content:"";position:absolute;left:0;right:0;top:100%;height:12px}
    .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}
    .drop-title,.mega-title{margin:0 0 12px;color:var(--theme);font-size:14px;font-weight:800}
    .drop-link{display:block;padding:8px 0;border-bottom:1px solid #eef1f5;font-size:14px}
    .drop-link:hover{color:var(--theme)}
    .drop-link small{display:block;color:var(--muted);font-size:12px}
    .mega-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
    .mega-card{display:flex;gap:9px;padding:10px;border:1px solid var(--line);border-radius:10px;background:#fbfcfe}
    .mega-card:hover{border-color:#9ab4dc;background:#f3f7fd}
    .mega-card img{width:30px;height:30px;object-fit:contain;flex:none}
    .mega-card strong,.mega-card small{display:block}
    .mega-card strong{font-size:13px}
    .mega-card small{color:var(--muted);font-size:11px;line-height:1.5}
    .mega-footer{display:block;margin-top:15px;padding-top:12px;border-top:1px solid var(--line);color:var(--theme);font-weight:700;font-size:13px}
    .header-btns{display:flex;align-items:center;gap:9px}
    .member-btn,.open-btn{padding:9px 13px;border-radius:8px;font-size:13px;font-weight:700}
    .member-btn{color:var(--theme);background:#edf3fb}
    .open-btn{color:#fff;background:var(--theme)}
    .hamburger{display:none;width:42px;height:40px;border:1px solid var(--line);border-radius:8px;background:#fff;cursor:pointer}
    .hamburger span{display:block;width:20px;height:2px;margin:4px auto;background:var(--ink);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{position:fixed;inset:0;background:rgba(10,25,45,.45);opacity:0;visibility:hidden;transition:.2s;z-index:40}
    .drawer-overlay.open{opacity:1;visibility:visible}
    .mobile-drawer{position:fixed;top:0;right:-360px;width:min(360px,88vw);height:100vh;overflow:auto;background:#fff;z-index:50;transition:.25s;box-shadow:-12px 0 35px rgba(0,0,0,.15)}
    .mobile-drawer.open{right:0}
    .drawer-head{display:flex;align-items:center;gap:13px;padding:20px;border-bottom:1px solid var(--line);font-weight:800;color:var(--theme)}
    .drawer-head>a{margin-left:auto;color:var(--theme);font-size:13px}
    .drawer-close{border:0;background:none;font-size:28px;line-height:1;color:#667085;cursor:pointer}
    .drawer-menu{padding:10px 20px 30px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:13px 0;border:0;border-bottom:1px solid #edf0f4;background:none;text-align:left;color:var(--ink);font-weight:700;cursor:pointer}
    .drawer-toggle:after{content:"＋";float:right;color:#98a2b3}
    .drawer-toggle.active:after{content:"－"}
    .drawer-submenu{display:none;padding:5px 0 8px 14px}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:7px 0;color:var(--muted);font-size:14px}
    .footer{margin-top:70px;background:#101d31;color:#cbd5e1}
    .footer .container{padding-top:48px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px}
    .footer h3{margin:0 0 12px;color:#fff;font-size:20px}
    .footer h4{margin:0 0 13px;color:#fff;font-size:15px}
    .footer p{margin:7px 0;color:#aebdce;font-size:13px}
    .footer-grid>div>a{display:block;margin:7px 0;color:#aebdce;font-size:13px}
    .footer a:hover{color:#fff}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:35px;padding:18px 0;border-top:1px solid rgba(255,255,255,.12);font-size:12px;color:#91a1b5}
    .productlist-main{padding:54px 0 10px;background:linear-gradient(180deg,#f7faff 0,#fff 430px)}
    .page-heading{text-align:center;max-width:760px;margin:0 auto 30px}
    .eyebrow{display:inline-block;padding:5px 12px;border-radius:99px;background:#e8f0fb;color:var(--theme);font-size:12px;font-weight:800;letter-spacing:.06em}
    .page-heading h1{margin:12px 0 8px;font-size:clamp(28px,4vw,44px);line-height:1.2;color:#14233b}
    .page-heading p{margin:0;color:var(--muted)}
    .category-strip{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin:0 auto 35px}
    .category-strip a{padding:8px 17px;border:1px solid #d9e2ef;border-radius:99px;background:#fff;color:#526173;font-size:13px}
    .category-strip a:hover{border-color:var(--theme);color:var(--theme)}
    .product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
    .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 7px 24px rgba(20,45,80,.05);transition:.2s}
    .product-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#b7c9e3}
    .product-cover{height:190px;padding:25px;background:#f1f5fa;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-body h2{margin:0 0 9px;font-size:19px;line-height:1.35;color:#172b4d}
    .product-summary{display:-webkit-box;overflow:hidden;margin:0 0 18px;color:var(--muted);font-size:14px;line-height:1.75;-webkit-box-orient:vertical;-webkit-line-clamp:3}
    .product-meta{display:flex;justify-content:space-between;gap:10px;padding-top:13px;margin-top:auto;border-top:1px solid #edf0f4;color:#8a96a6;font-size:12px}
    .product-meta span:last-child{color:var(--theme)}
    .product-more{display:inline-block;margin-top:15px;color:var(--theme);font-size:13px;font-weight:800}
    .pagination{display:flex;justify-content:center;flex-wrap:wrap;gap:8px;margin:38px 0 10px}
    .pagination a{min-width:36px;padding:6px 11px;text-align:center;border:1px solid var(--line);border-radius:7px;color:#667085;background:#fff}
    .pagination a:hover,.pagination a.active{color:#fff;background:var(--theme);border-color:var(--theme)}
    @media(max-width:1050px){
      .main-nav{display:none}
      .hamburger{display:block}
      .header-btns{margin-left:auto}
      .product-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:650px){
      .container{width:min(100% - 28px,1180px)}
      .topbar .container{align-items:flex-start;flex-direction:column;gap:0;padding:7px 0}
      .topbar a{margin:0 12px 0 0}
      .header-inner{height:66px;gap:10px}
      .member-btn{display:none}
      .open-btn{padding:8px 10px}
      .productlist-main{padding-top:38px}
      .product-grid{grid-template-columns:1fr}
      .product-cover{height:175px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:25px}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin:5px 0}
    }