/* 第194-200套 独立CSS库 - COBALT 主题 */
body { background-color: #ffffff; color: #333; }
.content-vessel { max-width: 1200px; margin: 0 auto; padding: 0 15px; }
.site-navigation { height: 64px; background: #fff; border-bottom: 1px solid #dbeafe; position: sticky; top: 0; z-index: 2000; }
.nav-inner { max-width: 1200px; margin: 0 auto; height: 100%; display: flex; align-items: center; justify-content: space-between; padding: 0 15px; }
.main-menu { display: flex; list-style: none; gap: 30px; margin: 0; padding: 0; }
.main-menu a { color: #64748b; text-decoration: none; font-weight: 700; font-size: 14px; transition: 0.3s; }
.main-menu a:hover, .main-menu a.active-link { color: #2563eb; }
.brand-side img { height: 26px; }
.alert-banner { background: #fff; border: 1px solid #dbeafe; border-left: 5px solid #2563eb; padding: 18px 25px; border-radius: 6px; margin: 25px 0; display: flex; align-items: center; box-shadow: 0 2px 5px rgba(0,0,0,0.02); }
.beacon-point { width: 10px; height: 10px; background: #2563eb; border-radius: 50%; margin-right: 15px; position: relative; }
.beacon-point::after { content: ""; position: absolute; width: 100%; height: 100%; background: inherit; border-radius: 50%; animation: p 2s infinite; }
@keyframes p { 0% { transform: scale(1); opacity: 0.8; } 100% { transform: scale(2.5); opacity: 0; } }
.category-title { font-size: 18px; font-weight: 800; color: #1e293b; margin: 40px 0 20px; padding-left: 15px; border-left: 4px solid #2563eb; }
.ribbon-item { background: #fff; border: 1px solid #dbeafe; border-radius: 6px; padding: 20px 25px; display: flex; align-items: center; text-decoration: none; margin-bottom: 12px; transition: 0.3s; }
.ribbon-item:hover { transform: translateX(5px); border-color: #2563eb; box-shadow: 0 10px 30px -10px rgba(0,0,0,0.1); }
.item-thumb { width: 48px; height: 48px; background: #f8fafc; border-radius: 6px; overflow: hidden; margin-right: 20px; }
.item-thumb img { width: 100%; height: 100%; object-fit: cover; }
.item-info { flex: 1; }
.item-info h3 { margin: 0 0 5px; font-size: 15px; color: #1e293b; }
.item-info p { margin: 0; font-size: 12px; color: #94a3b8; }
.item-price { font-family: 'Inter', sans-serif; font-size: 20px; font-weight: 800; color: #f43f5e; margin: 0 30px; }
.item-btn { background: #2563eb; color: #fff; padding: 6px 18px; border-radius: 4px; font-size: 12px; font-weight: 700; }
.detail-grid { display: grid; grid-template-columns: 1fr 380px; gap: 30px; margin-top: 30px; }
.main-panel, .buy-card { background: #fff; border: 1px solid #dbeafe; border-radius: 6px; overflow: hidden; }
.panel-head { padding: 15px 25px; background: #fafafa; border-bottom: 1px solid #dbeafe; font-weight: 700; }
.buy-card { padding: 30px; position: sticky; top: 100px; }
.form-input { width: 100%; height: 44px; border: 1px solid #ddd; border-radius: 6px; padding: 0 15px; margin: 8px 0 20px; box-sizing: border-box; outline: none; }
.buy-trigger { width: 100%; height: 50px; background: #2563eb; color: #fff; border: none; border-radius: 6px; font-size: 16px; font-weight: 700; cursor: pointer; }
.site-footer { padding: 60px 0; border-top: 1px solid #dbeafe; margin-top: 80px; text-align: center; color: #94a3b8; font-size: 13px; }
@media (max-width: 850px) { .detail-grid { grid-template-columns: 1fr; } .main-menu { display: none; } }