* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: Verdana, Geneva, sans-serif;
    background: #e7eaee;
    color: #0b1c2a;
}
.container { width: min(1280px, 96vw); margin: 0 auto; }
.top-header { background: #f7f8fa; border-bottom: 1px solid #a9b6c2; }
.utility-bar { background: #f7f8fa; border-bottom: 1px solid #d3dce3; }
.utility-inner { display: flex; justify-content: flex-end; padding: 6px 0; }
.utility-pill { background: #0a7eb1; color: #fff; border-radius: 999px; padding: 4px 16px; font-size: 12px; font-weight: 700; }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 0 10px; }
.logo { font-size: 52px; font-weight: 700; text-decoration: none; color: #091a29; letter-spacing: 1px; line-height: 0.9; }
.logo span { display: block; font-size: 12px; letter-spacing: 5px; color: #1a4a66; }
.lang-switch { display: flex; gap: 6px; }
.lang-btn { border: 1px solid #0a7eb1; background: #fff; color: #0a7eb1; padding: 6px 10px; cursor: pointer; font-weight: 700; }
.lang-btn.active { background: #0a7eb1; color: #fff; }
.main-nav { display: flex; gap: 0; justify-content: center; padding: 8px 0 10px; flex-wrap: wrap; }
.main-nav a { text-decoration: none; color: #18374f; font-size: 12px; font-weight: 700; padding: 0 10px; border-right: 1px solid #8ca2b2; }
.main-nav a:last-child { border-right: 0; }
.main-nav a:hover { color: #0a7eb1; }
.search-strip { background: #3f464c; border-top: 1px solid #5a636a; border-bottom: 1px solid #5a636a; }
.search-strip-inner { display: flex; justify-content: flex-end; padding: 8px 0; }
.search-box { display: flex; width: min(420px, 100%); }
.search-box input { flex: 1; border: 0; padding: 8px 10px; font-size: 12px; }
.search-box button { width: 96px; border: 0; background: #0a7eb1; color: #fff; font-weight: 700; cursor: pointer; }
.page { display: grid; grid-template-columns: 260px 1fr; gap: 14px; padding: 14px 0 18px; }
.sidebar { background: #cde0eb; border: 1px solid #84a4b9; }
.sidebar-title { margin: 0; background: #0a7eb1; color: #fff; font-size: 15px; text-align: center; padding: 12px; }
.category-list { margin: 0; padding: 0; list-style: none; }
.category-list li a { display: block; padding: 10px 12px; text-decoration: none; color: #102838; border-top: 1px solid #9ab8cb; font-size: 12px; background: #9fc1d6; }
.category-list li a:hover { background: #8db2cb; }
.sidebar-card { border-top: 1px solid #9ab8cb; padding: 10px 12px; display: grid; gap: 6px; background: #e5eef4; }
.sidebar-card h4 { margin: 0 0 4px; font-size: 13px; color: #0a4764; }
.sidebar-card a { text-decoration: none; color: #0a4764; font-size: 12px; }
.sidebar-brand-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px; }
.sidebar-brand-grid img { width: 100%; height: 40px; object-fit: contain; background: #fff; border: 1px solid #c8d6e1; padding: 3px; }
.social-links { display: grid; gap: 4px; }
.content-area { min-height: 640px; }
.slider-section { border: 1px solid #9ab8cb; background: #fff; }
.slider { position: relative; height: 380px; overflow: hidden; }
.slide { position: absolute; inset: 0; opacity: 0; transition: opacity .5s ease; text-decoration: none; }
.slide.active { opacity: 1; }
.slide img { width: 100%; height: 100%; object-fit: cover; display: block; }
.slide-caption { position: absolute; left: 24px; bottom: 18px; background: rgba(6, 20, 30, .78); color: #fff; padding: 12px 16px; max-width: 60%; }
.mission-box { margin: 14px 0; padding: 14px; background: #ffffff; border-left: 5px solid #0a7eb1; border-top: 2px solid #d4dbe1; }
.product-grid-section { background: #dce8f0; border: 1px solid #9ab8cb; padding: 10px; }
.product-grid-section h2 { margin: 4px 0 10px; font-size: 18px; color: #11354b; }
.product-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.product-card { background: #a7c4d8; border: 1px solid #86acc5; display: flex; flex-direction: column; min-height: 300px; }
.product-top { background: #2f3f4b; color: #fff; display: flex; justify-content: space-between; padding: 8px 10px; font-size: 12px; font-weight: 700; }
.product-top strong { color: #1bc4ff; }
.product-top .code-add { color: #1bc4ff; text-decoration: none; }
.product-top .code-add:hover { text-decoration: underline; }
.product-card img { width: 100%; aspect-ratio: 1 / 1; object-fit: contain; background: #fff; padding: 6px; }
.product-content { padding: 8px 10px; display: grid; gap: 6px; }
.product-content p { margin: 0; font-size: 12px; }
.price { font-weight: 700; color: #053149; }
.actions { display: flex; justify-content: space-between; gap: 8px; }
.actions a { font-size: 12px; color: #005882; text-decoration: none; font-weight: 700; }
.brand-strip { margin-top: 12px; background: #fff; border: 1px solid #9ab8cb; display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; padding: 12px; }
.brand-strip img { width: 100%; height: 80px; object-fit: contain; }
.page-panel { background: #fff; border: 1px solid #9ab8cb; padding: 14px; }
.prose h1 { margin-top: 0; }
.tech-table { width: 100%; border-collapse: collapse; margin-top: 10px; }
.tech-table th, .tech-table td { border: 1px solid #9ab8cb; padding: 8px; text-align: left; font-size: 13px; }
.detail-head { display: grid; grid-template-columns: 280px 1fr; gap: 16px; }
.detail-head img { width: 100%; aspect-ratio: 1/1; object-fit: contain; background: #fff; border: 1px solid #9ab8cb; }
.foreign-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.foreign-card { border: 1px solid #9ab8cb; padding: 10px; background: #f5f9fc; }
.foreign-card img, .foreign-hero { width: 100%; max-height: 240px; object-fit: cover; }
.notice { padding: 10px; background: #edf7ff; border: 1px solid #9bc8ec; }
.success { padding: 10px; background: #eaf9ea; border: 1px solid #8fd28f; margin-bottom: 10px; }
.error { padding: 10px; background: #ffe8e8; border: 1px solid #df9a9a; margin-bottom: 10px; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 10px; margin-bottom: 12px; }
.form-grid .full { grid-column: 1 / -1; }
.form-grid label { display: grid; gap: 5px; font-size: 13px; }
.form-grid input, .form-grid textarea { padding: 8px; border: 1px solid #a8c1d2; }
.primary-btn { background: #0a7eb1; color: #fff; border: 0; padding: 10px 16px; cursor: pointer; font-weight: 700; }
.site-footer { background: #273843; color: #d5e4ee; margin-top: 18px; }
.footer-grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 18px; padding: 20px 0; }
.footer-grid h5 { margin: 0 0 8px; color: #fff; }
.footer-grid a, .footer-grid span { display: block; font-size: 12px; color: #d5e4ee; text-decoration: none; margin-bottom: 6px; }
.bank-box { background: #f6f7fb; border: 1px solid #b7cce1; padding: 10px; white-space: pre-wrap; }
@media (max-width: 1024px) {
    .page { grid-template-columns: 1fr; }
    .sidebar { order: 2; }
    .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .detail-head { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .search-strip-inner { justify-content: stretch; }
    .search-box { width: 100%; }
}
@media (max-width: 700px) {
    .logo { font-size: 32px; }
    .product-grid, .foreign-grid, .brand-strip { grid-template-columns: 1fr; }
    .form-grid { grid-template-columns: 1fr; }
}