:root{
      --theme:#0B3D91;
      --theme-deep:#072653;
      --ink:#142238;
      --muted:#66758a;
      --line:#dce4ee;
      --soft:#f4f7fb;
      --white:#fff;
      --accent:#1cc8c8;
      --shadow:0 18px 50px rgba(16,43,80,.10);
      --radius:8px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:#f6f8fb;color:var(--ink);font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;line-height:1.6}
    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:#071a35;color:#aebed3;font-size:13px}
    .topbar-inner{min-height:36px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .topbar-links{display:flex;gap:24px}
    .topbar a{color:#d9e6f5;transition:color .2s}
    .topbar a:hover{color:#58e2e2}

    .header{position:relative;z-index:20;background:#fff;border-bottom:1px solid #e6ebf2}
    .header-inner{min-height:78px;display:flex;align-items:center;gap:34px}
    .logo{display:flex;align-items:center;gap:11px;min-width:max-content;color:var(--theme-deep);font-size:19px;font-weight:800}
    .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;list-style:none;padding:0;margin:0}
    .nav-item{position:relative}
    .nav-link{display:flex;align-items:center;gap:6px;padding:28px 14px;color:#3e4c60;font-size:14px;white-space:nowrap}
    .nav-link:hover,.nav-item:focus-within>.nav-link{color:var(--theme)}
    .has-arrow:after{content:"";width:6px;height:6px;border-right:1px solid currentColor;border-bottom:1px solid currentColor;transform:rotate(45deg) translateY(-2px)}
    .dropdown-panel,.mega-menu{position:absolute;top:calc(100% - 1px);left:50%;transform:translateX(-50%);visibility:hidden;opacity:0;pointer-events:none;background:#fff;border:1px solid #e2e9f2;box-shadow:var(--shadow);transition:opacity .2s,visibility .2s;z-index:25}
    .dropdown-panel{width:280px;padding:18px}
    .dropdown-panel:before,.mega-menu:before{content:"";position:absolute;left:0;right:0;top:-12px;height:12px}
    .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;pointer-events:auto}
    .dropdown-title,.mega-heading{font-size:13px;color:var(--theme);font-weight:800;margin-bottom:10px}
    .dropdown-panel a{display:block;padding:8px 0;border-bottom:1px solid #edf1f6;font-size:13px;color:#425167}
    .dropdown-panel a:last-child{border:0;color:var(--theme);font-weight:700}
    .mega-menu{width:690px;padding:24px}
    .mega-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
    .mega-list{display:grid;gap:9px}
    .mega-list a{display:flex;align-items:center;gap:10px;min-width:0;padding:7px;border-radius:6px}
    .mega-list a:hover{background:#f1f6fc}
    .mega-list img{width:34px;height:34px;object-fit:cover;border-radius:6px;background:#eaf0f8;flex:0 0 34px}
    .mega-list a>span{min-width:0}
    .mega-item-title,.mega-item-meta{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
    .mega-item-title{font-size:13px;color:#26364d;font-weight:700}
    .mega-item-meta{font-size:11px;color:#8592a4;margin-top:2px}
    .mega-categories{display:grid;grid-template-columns:1fr 1fr;gap:8px}
    .mega-categories a,.mega-tools span{padding:8px 10px;border:1px solid #e1e9f3;border-radius:5px;color:#52647b;font-size:12px}
    .mega-categories a:hover{border-color:var(--accent);color:var(--theme)}
    .mega-tools{display:flex;flex-wrap:wrap;gap:7px;margin:18px 0}
    .mega-footer{display:inline-block;margin-top:12px;color:var(--theme);font-size:13px;font-weight:700}
    .header-btns{display:flex;align-items:center;gap:12px;min-width:max-content}
    .member-link{font-size:13px;color:#58697f}
    .account-btn{background:var(--theme);color:#fff;border-radius:5px;padding:9px 16px;font-size:13px;font-weight:700}
    .account-btn:hover{background:#082f70}
    .hamburger{display:none;border:0;background:transparent;padding:8px;cursor:pointer}
    .hamburger span{display:block;width:23px;height:2px;margin:5px 0;background:#193454;transition:.2s}
    .hamburger.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
    .hamburger.active span:nth-child(2){opacity:0}
    .hamburger.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

    .drawer-overlay{display:none;position:fixed;inset:0;background:rgba(5,18,38,.54);z-index:40}
    .drawer-overlay.open{display:block}
    .mobile-drawer{position:fixed;top:0;right:0;bottom:0;width:min(360px,88vw);background:#fff;z-index:45;transform:translateX(100%);transition:transform .25s;overflow-y:auto}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{display:flex;align-items:center;gap:13px;padding:20px;border-bottom:1px solid var(--line);color:var(--theme-deep);font-weight:800}
    .drawer-head span{flex:1}
    .drawer-head a{padding:6px 11px;background:var(--theme);color:#fff;border-radius:4px;font-size:12px}
    .drawer-close{border:0;background:transparent;font-size:27px;line-height:1;color:#63748a;cursor:pointer}
    .drawer-menu{padding:10px 20px 28px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:14px 0;border:0;border-bottom:1px solid #edf1f6;background:transparent;text-align:left;color:#26384f;font-size:15px;cursor:pointer}
    .drawer-toggle:after{content:"+";float:right;color:var(--theme);font-size:20px;line-height:1}
    .drawer-toggle.active:after{content:"−"}
    .drawer-submenu{display:none;padding:5px 0 8px 16px}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:8px 0;color:#6a788b;font-size:13px}

    .productlist-main{padding-bottom:80px}
    .product-hero{position:relative;overflow:hidden;background:linear-gradient(135deg,#061b3b 0%,#0b3d91 62%,#0e687e 100%);color:#fff;padding:76px 0 92px}
    .product-hero:after{content:"";position:absolute;width:380px;height:380px;right:7%;top:-180px;border:1px solid rgba(105,235,235,.25);border-radius:50%;box-shadow:0 0 0 36px rgba(105,235,235,.05),0 0 0 72px rgba(105,235,235,.035)}
    .product-hero-inner{position:relative;z-index:1}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:#72e5e2;font-size:13px;font-weight:700;letter-spacing:1px}
    .eyebrow:before{content:"";width:24px;height:2px;background:#72e5e2}
    .product-hero h1{max-width:680px;margin:14px 0 12px;font-size:clamp(32px,5vw,56px);line-height:1.12;letter-spacing:0}
    .product-hero p{max-width:640px;margin:0;color:#c9d9ed;font-size:16px}
    .hero-stats{display:flex;flex-wrap:wrap;gap:28px;margin-top:32px}
    .hero-stat strong{display:block;font-size:25px;color:#fff}
    .hero-stat span{font-size:12px;color:#a9c0dc}
    .catalog-wrap{margin-top:-42px;position:relative;z-index:2}
    .catalog-shell{background:#fff;border:1px solid #e0e8f1;border-radius:8px;box-shadow:0 18px 45px rgba(10,36,70,.12);padding:28px}
    .catalog-toolbar{display:flex;align-items:end;justify-content:space-between;gap:20px;padding-bottom:20px;border-bottom:1px solid var(--line)}
    .section-kicker{font-size:12px;color:var(--theme);font-weight:800;letter-spacing:1px}
    .catalog-toolbar h2{margin:4px 0 0;font-size:25px;color:#182a42}
    .category-list{display:flex;flex-wrap:wrap;gap:8px}
    .category-list a{padding:8px 13px;border:1px solid #d9e3ef;border-radius:5px;color:#556980;font-size:13px;background:#fbfcfe}
    .category-list a:hover{border-color:var(--theme);color:var(--theme)}
    .products-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:25px}
    .product-card{display:flex;flex-direction:column;min-width:0;border:1px solid #e1e8f1;background:#fff;border-radius:7px;overflow:hidden;transition:transform .2s,box-shadow .2s,border-color .2s}
    .product-card:hover{transform:translateY(-3px);border-color:#a9c2df;box-shadow:0 12px 26px rgba(16,55,96,.10)}
    .product-cover{height:172px;background:#edf3fa;overflow:hidden}
    .product-cover img{width:100%;height:100%;object-fit:cover}
    .product-body{display:flex;flex:1;flex-direction:column;padding:18px}
    .product-label{font-size:11px;color:var(--theme);font-weight:800}
    .product-body h3{margin:7px 0 8px;color:#192b43;font-size:18px;line-height:1.35}
    .product-summary{display:-webkit-box;overflow:hidden;margin:0;color:#6a788a;font-size:13px;line-height:1.7;-webkit-box-orient:vertical;-webkit-line-clamp:3}
    .product-meta{display:flex;justify-content:space-between;gap:12px;margin-top:auto;padding-top:16px;color:#8a96a5;font-size:11px;border-top:1px solid #edf1f5}
    .product-price{color:var(--theme);font-weight:700}
    .product-link{display:inline-flex;align-items:center;gap:6px;margin-top:15px;color:var(--theme);font-size:13px;font-weight:800}
    .pagination{display:flex;justify-content:center;flex-wrap:wrap;gap:7px;margin-top:34px}
    .pagination a{min-width:34px;padding:7px 11px;border:1px solid #dbe4ee;border-radius:4px;text-align:center;color:#607187;font-size:13px}
    .pagination a:hover,.pagination a.active{background:var(--theme);border-color:var(--theme);color:#fff}

    .footer{background:#071a35;color:#aebdd0;padding:54px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1.1fr;gap:36px}
    .footer-brand img{width:38px;height:38px;object-fit:contain;margin-bottom:12px}
    .footer h3{margin:0 0 8px;color:#fff;font-size:18px}
    .footer h4{margin:0 0 15px;color:#fff;font-size:14px}
    .footer p{max-width:280px;margin:0;color:#91a5bd;font-size:13px;line-height:1.8}
    .footer-links,.footer-contact{display:grid;gap:8px;font-size:13px}
    .footer-links a:hover{color:#6ee5e2}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:42px;padding-top:18px;border-top:1px solid rgba(211,226,244,.14);font-size:12px;color:#7890aa}

    @media (max-width:980px){
      .header-inner{gap:18px}
      .nav-link{padding-left:8px;padding-right:8px}
      .member-link{display:none}
      .products-grid{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width:760px){
      .container{width:min(100% - 28px,1180px)}
      .topbar-inner{padding:8px 0;align-items:flex-start}
      .topbar-links{gap:10px;flex-direction:column;align-items:flex-end}
      .header-inner{min-height:68px}
      .main-nav{display:none}
      .hamburger{display:block}
      .account-btn{padding:8px 11px}
      .mega-menu{display:none}
      .product-hero{padding:54px 0 76px}
      .product-hero h1{font-size:35px}
      .product-hero p{font-size:14px}
      .hero-stats{gap:18px}
      .catalog-wrap{margin-top:-32px}
      .catalog-shell{padding:19px 15px}
      .catalog-toolbar{display:block}
      .category-list{margin-top:17px}
      .products-grid{grid-template-columns:1fr;gap:14px}
      .product-cover{height:190px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px 18px}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:7px}
    }
    @media (max-width:430px){
      .topbar{font-size:11px}
      .topbar-links{font-size:11px}
      .logo span{font-size:16px}
      .header-btns{gap:5px}
      .footer-grid{grid-template-columns:1fr}
    }