:root{
      --theme:#0B3D91;
      --theme-dark:#082b67;
      --ink:#172033;
      --muted:#6b7280;
      --line:#e5eaf2;
      --soft:#f4f7fb;
      --white:#fff;
      --shadow:0 14px 38px rgba(20,42,80,.09);
      --radius:16px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:#f7f9fc;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",Arial,sans-serif;line-height:1.65}
    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:#0d1b33;color:#dbe6f8;font-size:13px}
    .topbar .container{height:38px;display:flex;align-items:center;justify-content:space-between;gap:18px}
    .topbar a{margin-left:20px;color:#dbe6f8}
    .topbar a:hover{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:28px}
    .logo{display:flex;align-items:center;gap:10px;min-width:180px;font-weight:800;font-size:19px;color:var(--theme)}
    .logo img{width:36px;height:36px;object-fit:contain}
    .main-nav{flex:1}
    .nav-list{display:flex;align-items:stretch;justify-content:center;gap:3px;padding:0;margin:0;list-style:none}
    .nav-item{position:relative}
    .nav-link{display:flex;align-items:center;min-height:76px;padding:0 13px;font-size:14px;font-weight:650;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:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg)}
    .dropdown-panel,.mega-menu{position:absolute;top:calc(100% + 1px);left:50%;transform:translateX(-50%) translateY(8px);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;pointer-events:none;transition:.2s ease}
    .mega-menu{width:620px}
    .dropdown-panel:before,.mega-menu:before{content:"";position:absolute;left:0;right:0;top:-10px;height:10px}
    .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;pointer-events:auto;transform:translateX(-50%) translateY(0)}
    .drop-title,.mega-title{font-weight:800;color:var(--theme);font-size:15px;margin-bottom:12px}
    .drop-list{display:grid;gap:4px}
    .drop-list a{display:block;padding:7px 0;border-bottom:1px solid #eef1f6;font-size:13px}
    .drop-list a:hover,.mega-card:hover{color:var(--theme)}
    .mega-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
    .mega-card{display:block;min-height:88px;padding:11px;border:1px solid var(--line);border-radius:10px;background:#fbfcfe}
    .mega-card img{width:30px;height:30px;object-fit:contain;margin-bottom:6px}
    .mega-card strong,.mega-card small{display:block}
    .mega-card strong{font-size:13px}
    .mega-card small{margin-top:3px;color:var(--muted);font-size:11px;line-height:1.4}
    .mega-footer{display:block;margin-top:16px;padding-top:12px;border-top:1px solid var(--line);font-size:13px;font-weight:700;color:var(--theme)}
    .header-btns{display:flex;align-items:center;gap:9px;white-space:nowrap}
    .member-btn,.open-btn{padding:9px 13px;border-radius:8px;font-size:13px;font-weight:700}
    .member-btn{color:var(--theme)}
    .open-btn{background:var(--theme);color:#fff}
    .open-btn:hover{background:var(--theme-dark)}
    .hamburger{display:none;width:42px;height:40px;padding:9px;border:1px solid var(--line);border-radius:8px;background:#fff;cursor:pointer}
    .hamburger span{display:block;width:21px;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(6,17,36,.52);opacity:0;visibility:hidden;z-index:80;transition:.2s}
    .drawer-overlay.open{opacity:1;visibility:visible}
    .mobile-drawer{position:fixed;top:0;right:0;bottom:0;width:min(370px,88vw);background:#fff;z-index:90;transform:translateX(100%);transition:.25s ease;overflow:auto}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{display:flex;align-items:center;gap:14px;padding:20px;border-bottom:1px solid var(--line);font-weight:800}
    .drawer-head>a{margin-left:auto;color:var(--theme);font-size:14px}
    .drawer-close{border:0;background:transparent;font-size:28px;line-height:1;cursor:pointer;color:var(--muted)}
    .drawer-menu{padding:10px 20px 30px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:14px 0;border:0;border-bottom:1px solid var(--line);background:none;text-align:left;font-weight:700;color:var(--ink);cursor:pointer}
    .drawer-group{border-bottom:1px solid var(--line)}
    .drawer-toggle:after{content:"＋";float:right;color:var(--muted)}
    .drawer-toggle.active:after{content:"－"}
    .drawer-submenu{display:none;padding:3px 0 10px 15px}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:8px 0;color:var(--muted);font-size:14px}

    .productlist-main{padding:58px 0 80px}
    .productlist-main .page-heading{text-align:center;max-width:760px;margin:0 auto 34px}
    .productlist-main .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--theme);font-weight:800;font-size:13px;letter-spacing:.12em}
    .productlist-main .eyebrow:before{content:"";width:28px;height:2px;background:var(--theme)}
    .productlist-main h1{margin:12px 0 10px;font-size:clamp(30px,4vw,46px);line-height:1.2;letter-spacing:-.03em}
    .productlist-main .intro{margin:0;color:var(--muted);font-size:16px}
    .product-category-nav{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin:28px auto 42px}
    .product-category-nav a{padding:9px 17px;border:1px solid #d9e1ee;border-radius:999px;background:#fff;color:#536078;font-size:14px}
    .product-category-nav a:hover{border-color:var(--theme);color:var(--theme)}
    .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(27,49,87,.04);transition:.2s ease}
    .product-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cbd8ee}
    .product-image{height:190px;background:linear-gradient(135deg,#eef4fc,#f8fbff);overflow:hidden}
    .product-image img{width:100%;height:100%;object-fit:cover}
    .product-body{display:flex;flex-direction:column;flex:1;padding:21px}
    .product-category{display:inline-block;margin-bottom:10px;color:var(--theme);font-size:12px;font-weight:800}
    .product-body h2{margin:0 0 9px;font-size:20px;line-height:1.35}
    .product-summary{margin:0;color:var(--muted);font-size:14px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
    .product-meta{display:flex;justify-content:space-between;gap:8px;margin-top:auto;padding-top:18px;color:#8a94a6;font-size:12px}
    .product-action{display:inline-flex;align-items:center;gap:6px;margin-top:18px;color:var(--theme);font-size:14px;font-weight:800}
    .product-action:after{content:"→";transition:.2s}
    .product-card:hover .product-action:after{transform:translateX(4px)}
    .pagination{display:flex;justify-content:center;flex-wrap:wrap;gap:8px;margin-top:45px}
    .pagination a{min-width:38px;padding:8px 12px;text-align:center;border:1px solid #dbe3ef;border-radius:8px;background:#fff;color:#536078;font-size:14px}
    .pagination a:hover,.pagination a.active{background:var(--theme);border-color:var(--theme);color:#fff}

    .footer{background:#0d1b33;color:#c4d0e2;padding:54px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
    .footer-brand strong{display:block;color:#fff;font-size:21px;margin-bottom:12px}
    .footer p{margin:6px 0;color:#9eacc1;font-size:13px}
    .footer h3{margin:0 0 13px;color:#fff;font-size:15px}
    .footer-grid>div:not(.footer-brand) a,.footer-grid>div:not(.footer-brand) span{display:block;margin:7px 0;color:#aebbd0;font-size:13px}
    .footer-grid a:hover{color:#fff}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:36px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);color:#8f9db2;font-size:12px}

    @media(max-width:1050px){
      .nav-link{padding:0 8px}
      .logo{min-width:145px}
      .mega-menu{width:560px}
    }
    @media(max-width:820px){
      .container{width:min(100% - 30px,680px)}
      .topbar .container{height:auto;min-height:38px;padding:8px 0;align-items:flex-start;flex-direction:column;gap:1px}
      .topbar a{margin-left:0;margin-right:14px}
      .main-nav{display:none}
      .header-inner{min-height:66px;gap:10px}
      .header-btns{margin-left:auto}
      .member-btn,.open-btn{display:none}
      .hamburger{display:block}
      .productlist-main{padding:42px 0 60px}
      .product-grid{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:repeat(2,1fr)}
      .footer-bottom{flex-direction:column;gap:5px}
    }
    @media(max-width:540px){
      .productlist-main h1{font-size:32px}
      .product-grid{grid-template-columns:1fr}
      .product-image{height:210px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:25px 18px}
      .footer-brand{grid-column:1/-1}
      .mega-grid{grid-template-columns:1fr}
    }