:root{--theme:#0B3D91;--ink:#142033;--muted:#68758a;--line:#e3e8f0;--bg:#f5f7fb;--white:#fff}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:var(--bg);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}
    .container{width:min(1180px,calc(100% - 36px));margin:auto}
    .topbar{background:#0b1730;color:#d9e5f7;font-size:13px}
    .topbar .container{min-height:36px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .topbar-links{display:flex;gap:20px}.topbar a:hover{color:#fff}
    .header{position:relative;z-index:20;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 4px 18px #1129560b}
    .header-inner{min-height:76px;display:flex;align-items:center;gap:30px}
    .logo{display:flex;align-items:center;gap:10px;white-space:nowrap;font-weight:800;font-size:19px;color:var(--theme)}
    .logo img{width:38px;height:38px;object-fit:contain}
    .main-nav{margin-left:auto}.nav-list{display:flex;align-items:stretch;gap:4px;list-style:none;margin:0;padding:0}
    .nav-item{position:relative}.nav-link{display:flex;align-items:center;height:76px;padding:0 14px;font-weight:600;white-space:nowrap}
    .nav-link:hover,.nav-link:focus{color:var(--theme);background:#f4f7fc}
    .has-arrow:after{content:"";width:6px;height:6px;margin-left:8px;border-right:1px solid currentColor;border-bottom:1px solid currentColor;transform:rotate(45deg) translateY(-2px)}
    .dropdown-panel,.mega-menu{position:absolute;top:100%;left:50%;transform:translateX(-50%);visibility:hidden;opacity:0;transition:.2s;pointer-events:none;background:#fff;border:1px solid var(--line);box-shadow:0 18px 40px #12294d1c;border-radius:0 0 12px 12px}
    .dropdown-panel{width:280px;padding:12px}.dropdown-panel a{display:block;padding:10px 12px;border-bottom:1px solid #eef1f5;font-size:14px}
    .mega-menu{width:650px;padding:18px}.nav-item:hover .mega-menu,.nav-item:focus-within .mega-menu,.nav-item:hover .dropdown-panel,.nav-item:focus-within .dropdown-panel{visibility:visible;opacity:1;pointer-events:auto}
    .mega-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.mega-card{padding:11px;border:1px solid var(--line);border-radius:9px;background:#fbfcff}
    .mega-card:hover{border-color:var(--theme);transform:translateY(-2px)}.mega-card img{width:34px;height:34px;object-fit:contain;margin-bottom:7px}
    .mega-card strong,.mega-card small{display:block}.mega-card strong{font-size:14px}.mega-card small{color:var(--muted);font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .mega-footer{display:flex;flex-wrap:wrap;gap:10px;margin-top:15px;padding-top:13px;border-top:1px solid var(--line);font-size:13px;color:var(--theme)}
    .header-btns{display:flex;align-items:center;gap:10px}.member-link{font-size:13px;color:var(--theme);font-weight:700}
    .open-account{padding:9px 14px;border-radius:7px;background:var(--theme);color:#fff;font-size:13px;font-weight:700}
    .hamburger{display:none;border:0;background:transparent;padding:8px;cursor:pointer}.hamburger span{display:block;width:23px;height:2px;background:var(--ink);margin:4px 0;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:#08172b99;z-index:40}.drawer-overlay.open{display:block}
    .mobile-drawer{position:fixed;top:0;right:-360px;width:min(360px,88vw);height:100vh;overflow:auto;background:#fff;z-index:50;transition:right .25s;box-shadow:-8px 0 30px #091a3825}
    .mobile-drawer.open{right:0}.drawer-head{display:flex;align-items:center;gap:14px;padding:20px;border-bottom:1px solid var(--line)}.drawer-head strong{margin-right:auto}
    .drawer-head a{color:var(--theme);font-weight:700}.drawer-close{border:0;background:none;font-size:28px;cursor:pointer;color:var(--muted)}
    .drawer-menu{padding:10px 20px}.drawer-link,.drawer-toggle{display:block;width:100%;padding:13px 0;border:0;border-bottom:1px solid var(--line);background:none;text-align:left;font:inherit;color:var(--ink);cursor:pointer}
    .drawer-toggle:after{content:"＋";float:right;color:var(--theme)}.drawer-toggle.active:after{content:"－"}
    .drawer-submenu{display:none;padding:3px 0 8px 15px}.drawer-submenu.open{display:block}.drawer-submenu a{display:block;padding:8px 0;color:var(--muted);font-size:14px}
    .footer{margin-top:70px;background:#0b1730;color:#ced9e8}.footer .container{padding:48px 0 20px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:35px}
    .footer h3{color:#fff;font-size:15px;margin:0 0 13px}.footer p{margin:7px 0;font-size:13px}.footer a{display:block;color:#c2d0e3;font-size:13px;margin:7px 0}.footer a:hover{color:#fff}
    .footer-brand strong{font-size:20px;color:#fff}.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #ffffff1c;margin-top:32px;padding-top:18px;color:#94a7c0;font-size:12px}
    .productlist-main{padding:0 0 20px}.product-hero{background:linear-gradient(135deg,#0b1730,#0B3D91);color:#fff;padding:62px 0 58px}
    .product-hero .eyebrow{color:#b9d2ff;font-size:13px;letter-spacing:.12em}.product-hero h1{font-size:clamp(30px,5vw,52px);line-height:1.16;margin:12px 0}.product-hero p{max-width:650px;color:#dbe8ff;margin:0}
    .product-content{padding-top:38px}.category-tabs{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:28px}.category-tabs a{background:#fff;border:1px solid var(--line);border-radius:30px;padding:8px 16px;font-size:14px;color:var(--muted)}
    .category-tabs a:hover{border-color:var(--theme);color:var(--theme)}.product-heading{display:flex;align-items:end;justify-content:space-between;gap:15px;margin-bottom:18px}.product-heading h2{margin:0;font-size:25px}.product-heading p{margin:0;color:var(--muted);font-size:14px}
    .product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.product-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:0 8px 24px #162b5010;transition:.2s}
    .product-card:hover{transform:translateY(-4px);border-color:#9eb6de;box-shadow:0 14px 30px #162b5020}.product-cover{height:180px;background:#eaf0f8;display:flex;align-items:center;justify-content:center;overflow:hidden}.product-cover img{width:100%;height:100%;object-fit:cover}
    .product-body{padding:19px;display:flex;flex-direction:column;flex:1}.product-body h3{font-size:18px;margin:0 0 8px}.product-summary{color:var(--muted);font-size:14px;line-height:1.75;margin:0 0 16px;min-height:50px}.product-meta{display:flex;flex-wrap:wrap;gap:8px;color:#8793a5;font-size:12px;margin-top:auto}.product-meta span{background:#f3f6fa;border-radius:5px;padding:4px 7px}.product-more{margin-top:15px;color:var(--theme);font-size:14px;font-weight:700}
    .pagination{display:flex;justify-content:center;gap:8px;margin:38px 0}.pagination a{min-width:36px;text-align:center;padding:7px 10px;border:1px solid var(--line);background:#fff;border-radius:6px;font-size:13px}.pagination a:hover,.pagination a.active{background:var(--theme);border-color:var(--theme);color:#fff}
    @media(max-width:980px){.main-nav{display:none}.header-btns{margin-left:auto}.hamburger{display:block}.footer-grid{grid-template-columns:repeat(2,1fr)}.product-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:2px;padding:8px 0}.topbar-links{gap:12px;flex-wrap:wrap}.header-inner{min-height:64px}.logo span{font-size:16px}.member-link,.open-account{display:none}.product-hero{padding:43px 0}.product-hero h1{font-size:34px}.product-grid{grid-template-columns:1fr}.product-cover{height:170px}.product-heading{display:block}.product-heading p{margin-top:5px}.footer-grid{grid-template-columns:1fr;gap:24px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}}