:root{--theme:#0B3D91;--navy:#071d49;--ink:#17233d;--muted:#66738b;--line:#dce5f1;--soft:#f4f8fc;--white:#fff;--shadow:0 18px 50px rgba(7,29,73,.1)}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:#f7faff;font-family:-apple-system,BlinkMacSystemFont,"Noto Sans TC","Microsoft JhengHei",sans-serif;line-height:1.65}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1180px,calc(100% - 40px));margin:auto}
.topbar{background:var(--navy);color:#d8e7ff;font-size:13px}
.topbar-inner{min-height:38px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.topbar-contact{display:flex;gap:22px}
.topbar a:hover{color:#fff}
.header{position:relative;z-index:20;background:#fff;border-bottom:1px solid #e7edf5}
.header-inner{height:78px;display:flex;align-items:center;gap:28px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--navy);font-weight:800;white-space:nowrap}
.logo img{width:34px;height:34px;object-fit:contain}
.logo span{font-size:19px}
.main-nav{margin-left:auto}
.nav-list{display:flex;align-items:stretch;gap:3px;list-style:none;padding:0;margin:0}
.nav-item{position:relative}
.nav-link{display:flex;align-items:center;gap:5px;padding:27px 13px;font-size:14px;font-weight:700;color:#31415d;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:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg) translateY(-2px)}
.dropdown-panel,.mega-menu{position:absolute;top:calc(100% - 1px);left:50%;transform:translateX(-50%) translateY(8px);opacity:0;visibility:hidden;pointer-events:none;background:#fff;border:1px solid #e3eaf4;border-radius:0 0 16px 16px;box-shadow:0 22px 45px rgba(7,29,73,.15);transition:.2s ease}
.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)}
.dropdown-panel{width:300px;padding:20px}
.dropdown-title,.mega-menu-title strong{display:block;color:var(--navy);font-size:16px}
.dropdown-article{display:block;padding:10px 0;border-bottom:1px solid var(--line);font-size:13px}
.dropdown-more,.mega-footer{display:block;margin-top:13px;color:var(--theme);font-weight:700;font-size:13px}
.mega-menu{width:720px;padding:24px}
.mega-video{width:850px}
.mega-menu-title{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:17px}
.mega-menu-title span{font-size:12px;color:var(--muted)}
.mega-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.mega-card{display:block;padding:12px;border:1px solid var(--line);border-radius:11px;background:#fbfdff;transition:.2s}
.mega-card:hover{border-color:#9bb8e5;transform:translateY(-2px)}
.mega-card-head{display:flex;align-items:center;gap:8px}
.mega-card-head img{width:26px;height:26px;object-fit:contain;border-radius:5px}
.mega-card strong{font-size:13px}
.mega-card p{font-size:11px;color:var(--muted);margin:7px 0 0;line-height:1.45}
.mega-stats{display:flex;gap:8px;color:var(--theme);font-size:11px;margin-top:6px}
.mega-split{display:grid;grid-template-columns:145px 1fr;gap:18px}
.mega-categories{border-right:1px solid var(--line);padding-right:14px}
.mega-categories a{display:block;padding:7px 0;color:#40516e;font-size:12px}
.mega-categories a:hover{color:var(--theme)}
.video-mega-card,.product-mega-card{display:flex;gap:9px}
.video-mega-card>img,.product-mega-card>img{width:52px;height:52px;object-fit:cover;border-radius:7px;flex:none}
.video-mega-copy strong,.product-mega-copy strong{font-size:12px;display:block}
.video-mega-copy p,.product-mega-copy p{margin:2px 0;font-size:10px}
.video-duration,.product-meta{font-size:10px;color:var(--theme)}
.header-btns{display:flex;align-items:center;gap:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:7px;padding:11px 19px;font-weight:700;border:1px solid transparent;cursor:pointer}
.btn-primary{background:var(--theme);color:#fff}
.btn-primary:hover{background:#082f70}
.btn-small{font-size:13px;padding:9px 14px}
.hamburger{display:none;width:42px;height:40px;border:1px solid var(--line);border-radius:7px;background:#fff;padding:9px;cursor:pointer}
.hamburger span{display:block;height:2px;background:var(--navy);margin:5px 0;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(4,18,44,.5);z-index:50}
.mobile-drawer{position:fixed;z-index:60;top:0;right:0;width:min(390px,88vw);height:100vh;background:#fff;transform:translateX(105%);transition:.25s ease;overflow:auto;box-shadow:-15px 0 35px rgba(0,0,0,.15)}
.mobile-drawer.open{transform:translateX(0)}
.drawer-overlay.open{display:block}
.drawer-head{display:flex;align-items:center;gap:14px;padding:20px;border-bottom:1px solid var(--line);font-weight:700}
.drawer-head>a{margin-left:auto;color:var(--theme)}
.drawer-close{font-size:27px;border:0;background:none;cursor:pointer;color:var(--navy)}
.drawer-menu{padding:10px 20px 30px}
.drawer-link,.drawer-toggle{display:block;width:100%;padding:14px 0;border-bottom:1px solid #edf1f7;background:none;border:0;border-bottom:1px solid #edf1f7;text-align:left;font:inherit;color:var(--ink);cursor:pointer}
.drawer-group .drawer-toggle:after{content:"+";float:right;color:var(--theme);font-size:19px}
.drawer-toggle.active:after{content:"−"}
.drawer-submenu{display:none;padding:4px 0 7px 16px}
.drawer-submenu.open{display:block}
.drawer-submenu a{display:block;padding:8px 0;color:var(--muted);font-size:14px}
.footer{margin-top:70px;background:var(--navy);color:#d4e1f5}
.footer-main{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:38px;padding:52px 0 42px}
.footer .logo{color:#fff}
.footer-brand p{max-width:330px;color:#aebed7;font-size:13px;margin-top:18px}
.footer-title{font-size:14px;color:#fff;margin:0 0 15px}
.footer-links,.footer-contact{display:flex;flex-direction:column;gap:9px;font-size:13px}
.footer-links a,.footer-contact a{color:#b9c9e0}
.footer-links a:hover,.footer-contact a:hover{color:#fff}
.social-link{color:#8ec3ff!important}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:18px 0;display:flex;justify-content:space-between;gap:20px;color:#91a5c4;font-size:12px}
.productlist-main{padding:0 0 20px}
.product-hero{padding:74px 0 62px;background:linear-gradient(135deg,#eef5ff 0%,#fff 60%);border-bottom:1px solid #e1eaf5;text-align:center}
.product-hero .eyebrow{display:inline-block;color:var(--theme);background:#dceaff;border-radius:30px;padding:5px 13px;font-size:12px;font-weight:800;letter-spacing:.08em}
.product-hero h1{font-size:clamp(32px,5vw,56px);line-height:1.15;color:var(--navy);margin:17px 0 12px}
.product-hero p{max-width:660px;margin:0 auto;color:var(--muted);font-size:16px}
.category-strip{display:flex;justify-content:center;flex-wrap:wrap;gap:10px;margin-top:27px}
.category-strip a{padding:8px 15px;border:1px solid #cbd9ed;border-radius:30px;background:#fff;color:var(--theme);font-size:13px;font-weight:700}
.category-strip a:hover{background:var(--theme);color:#fff}
.product-section{padding:58px 0}
.section-heading{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:25px}
.section-heading h2{font-size:28px;color:var(--navy);margin:0}
.section-heading p{color:var(--muted);font-size:14px;margin:0}
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.product-card{display:flex;flex-direction:column;background:#fff;border:1px solid #e0e8f3;border-radius:15px;overflow:hidden;box-shadow:0 8px 25px rgba(7,29,73,.05);transition:.22s}
.product-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#a7c2e8}
.product-card-image{height:190px;background:#edf4fc;overflow:hidden}
.product-card-image img{width:100%;height:100%;object-fit:cover}
.product-card-body{display:flex;flex-direction:column;flex:1;padding:21px}
.product-label{display:inline-block;width:max-content;color:var(--theme);background:#e9f1fd;border-radius:5px;padding:3px 8px;font-size:11px;font-weight:700;margin-bottom:10px}
.product-card h3{color:var(--navy);font-size:19px;line-height:1.35;margin:0 0 10px}
.product-summary{color:var(--muted);font-size:14px;line-height:1.7;margin:0 0 18px;display:block}
.product-meta-row{display:flex;justify-content:space-between;gap:10px;margin-top:auto;padding-top:15px;border-top:1px solid #edf1f6;color:#8794a9;font-size:12px}
.product-card .read-more{display:inline-block;margin-top:15px;color:var(--theme);font-size:13px;font-weight:800}
.pagination{display:flex;justify-content:center;gap:8px;margin-top:42px;flex-wrap:wrap}
.pagination a{min-width:38px;padding:7px 12px;text-align:center;border:1px solid #d4e0ef;border-radius:6px;background:#fff;color:var(--theme);font-size:13px}
.pagination a.active,.pagination a:hover{background:var(--theme);color:#fff}
@media(max-width:1050px){
  .main-nav{display:none}
  .hamburger{display:block}
  .header-btns{margin-left:auto}
  .footer-main{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:680px){
  .container{width:min(100% - 28px,1180px)}
  .topbar-inner{padding:7px 0;align-items:flex-start}
  .topbar-contact{flex-direction:column;gap:0;text-align:right}
  .header-inner{height:68px}
  .header-btns .btn{display:none}
  .product-hero{padding:52px 0 42px}
  .product-hero h1{font-size:34px}
  .product-hero p{font-size:14px}
  .product-section{padding:40px 0}
  .section-heading{display:block}
  .section-heading h2{font-size:24px;margin-bottom:5px}
  .product-grid{grid-template-columns:1fr}
  .product-card-image{height:210px}
  .footer-main{grid-template-columns:1fr;gap:28px;padding:38px 0 30px}
  .footer-bottom{display:block;line-height:2}
}