:root{--blue:#264394;--deep:#16285E;--red:#C81F17;--char:#3B3B3B;--light:#EEF2FA;--border:#DDE3EE}body{font-family:"Sarabun","IBM Plex Sans Thai",Arial,sans-serif;color:var(--char)}.topbar{background:var(--deep);color:#fff;font-size:.83rem;padding:.45rem 0}.navbar-brand{color:var(--blue);letter-spacing:.02em}.navbar-brand span{color:var(--red);font-size:.7em}.btn-primary{background:var(--blue);border-color:var(--blue)}.btn-danger{background:var(--red);border-color:var(--red)}.hero{background:linear-gradient(110deg,var(--deep),var(--blue));color:#fff}.min-vh-50{min-height:50vh}.eyebrow{font-size:.78rem;letter-spacing:.14em;font-weight:800;color:#6f82b5}.hero .eyebrow,.page-hero .eyebrow{color:#b9c7ef}.page-hero{background:linear-gradient(120deg,var(--deep),var(--blue));color:#fff}.bg-light-blue{background:var(--light)}.brand-card,.product-card,.content-card{background:#fff;border:1px solid var(--border);border-radius:14px;padding:1.25rem;box-shadow:0 8px 30px rgba(22,40,94,.05)}.brand-card{font-weight:800;text-align:center;color:var(--blue)}.product-card{text-decoration:none;color:inherit;transition:.2s}.product-card:hover{transform:translateY(-4px);box-shadow:0 15px 40px rgba(22,40,94,.12)}.product-img,.detail-image{display:flex;align-items:center;justify-content:center;background:#f7f8fb;border-radius:10px;color:#8b95a8;min-height:190px;text-align:center;padding:1rem}.detail-image{min-height:420px}.footer{background:var(--deep);color:#fff}.section-head{margin-bottom:1.5rem}.section-head h2{font-weight:800;color:var(--deep)}
/* DB product images: preserve original proportions */
.by-product-photo{width:100%;height:100%;max-height:360px;object-fit:contain;display:block;margin:auto;}
.by-photo-fallback{width:100%;min-height:180px;align-items:center;justify-content:center;color:#64748b;background:#f1f5f9;font-weight:700;}
.product-img{min-height:180px;display:flex;justify-content:center;align-items:center;overflow:hidden;}
.detail-image{min-height:280px;display:flex;align-items:center;justify-content:center;}