.product-inquiry-section{
  --c-primary:#0e3a5c;
  --c-primary-dark:#0a2a43;
  --c-primary-light:#1a4d75;
  --c-bg:#f1f5f9;
  --c-card:#ffffff;
  --c-border:#e2e8f0;
  --c-text:#1e293b;
  --c-text-light:#64748b;
  --c-text-lighter:#94a3b8;
  --r:8px;
  --r-lg:12px;
  --t:0.25s cubic-bezier(0.4,0,0.2,1);
  --container:1280px;
  background:linear-gradient(135deg,var(--c-primary-dark) 0%,var(--c-primary) 60%,var(--c-primary-light) 100%);
  padding:56px 24px;
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  -webkit-font-smoothing:antialiased;
}

.product-inquiry-section *,.product-inquiry-section *::before,.product-inquiry-section *::after{margin:0;padding:0;box-sizing:border-box}
.product-inquiry-section a{text-decoration:none;color:inherit}
.product-inquiry-section ul{list-style:none}
.product-inquiry-section button{cursor:pointer;border:none;background:none;font-family:inherit}

.product-inquiry-grid{
  max-width:var(--container);margin:0 auto;
  display:grid;grid-template-columns:1fr 1.2fr;gap:48px;
  align-items:center;
}

.product-inquiry-info{color:#fff}
.product-inquiry-tag{
  display:inline-block;background:rgba(255,255,255,0.15);
  color:#fff;font-size:12px;font-weight:700;text-transform:uppercase;
  letter-spacing:1px;padding:4px 12px;border-radius:4px;margin-bottom:16px;
  border:1px solid rgba(255,255,255,0.2);
}
.product-inquiry-title{font-size:32px;font-weight:800;margin-bottom:12px;letter-spacing:-0.5px}
.product-inquiry-desc{font-size:15px;color:rgba(255,255,255,0.85);max-width:440px;margin-bottom:24px}
.product-inquiry-contact{display:flex;flex-direction:column;gap:12px}
.product-inquiry-contact-item{
  display:flex;align-items:center;gap:10px;
  font-size:14px;color:rgba(255,255,255,0.9);
}
.product-inquiry-contact-item svg{color:rgba(255,255,255,0.6);flex-shrink:0}

.product-inquiry-form{
  background:var(--c-card);
  border-radius:var(--r-lg);
  padding:32px;
  display:flex;flex-direction:column;gap:18px;
  box-shadow:0 20px 50px rgba(0,0,0,0.25);
}
.product-inquiry-field{display:flex;flex-direction:column;gap:6px}
.product-inquiry-field label{font-size:13px;font-weight:600;color:var(--c-text)}
.product-inquiry-field input,
.product-inquiry-field textarea{
  width:100%;padding:10px 14px;
  border:1px solid var(--c-border);border-radius:var(--r);
  font-size:14px;font-family:inherit;color:var(--c-text);
  background:#fff;transition:var(--t);outline:none;
}
.product-inquiry-field input::placeholder,
.product-inquiry-field textarea::placeholder{color:var(--c-text-lighter)}
.product-inquiry-field input:focus,
.product-inquiry-field textarea:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(14,58,92,0.12)}
.product-inquiry-field textarea{resize:vertical;min-height:96px}

.product-inquiry-field.has-error input,
.product-inquiry-field.has-error textarea{border-color:#dc2626;box-shadow:0 0 0 3px rgba(220,38,38,0.1)}
.product-inquiry-field .product-inquiry-error{display:none;font-size:12px;color:#dc2626}
.product-inquiry-field.has-error .product-inquiry-error{display:block}

.product-inquiry-section .product-inquiry-btn{
  align-self:flex-start;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--c-primary);color:#fff;
  padding:12px 32px;border-radius:var(--r);
  font-size:14px;font-weight:700;transition:var(--t);
}
.product-inquiry-section .product-inquiry-btn:hover{background:var(--c-primary-light);transform:translateY(-2px);box-shadow:0 8px 24px rgba(14,58,92,0.3)}
.product-inquiry-section .product-inquiry-btn:disabled{opacity:0.6;cursor:not-allowed;transform:none}

.product-inquiry-tip{display:none;font-size:14px;font-weight:600;color:#16a34a}
.product-inquiry-tip.show{display:block}
.product-inquiry-tip.error{color:#dc2626}

@media(max-width:768px){
  .product-inquiry-grid{grid-template-columns:1fr;gap:32px}
  .product-inquiry-section{padding:40px 16px}
  .product-inquiry-title{font-size:26px}
  .product-inquiry-form{padding:24px}
}