:root {
  --corp-bg: #f8f8f8;
  --corp-text: #171717;
  --corp-muted: #666;
  --corp-line: #e8e8e8;
  --corp-accent: #1f4fa8;
}

html { scroll-behavior: smooth; }
body { background: var(--corp-bg); color: var(--corp-text); }

.corp-shell { max-width: 1120px; margin: 0 auto; padding: 24px 20px 64px; }
.corp-head {
  position: sticky; top: 14px; z-index: 9; background: rgba(248,248,248,.92);
  backdrop-filter: blur(8px); border: 1px solid var(--corp-line); border-radius: 999px;
  display: flex; gap: 16px; align-items: center; padding: 10px 14px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--corp-text); text-decoration: none; font-weight: 700; }
.experience-switch { border-color: var(--corp-line); }
.experience-switch a { background: #fff; color: var(--corp-text); }
.experience-switch a.active { background: var(--corp-accent); }

.hero { margin: 56px 0 28px; max-width: 760px; }
.eyebrow { text-transform: uppercase; letter-spacing: .08em; color: var(--corp-muted); font-size: .8rem; margin: 0 0 12px; }
.hero h1 { margin: 0 0 14px; font-size: clamp(1.95rem, 4.2vw, 3.5rem); line-height: 1.15; }
.hero p { margin: 0 0 12px; color: #4a4a4a; font-size: 1.08rem; }
.hero-note { color: var(--corp-muted); font-size: .98rem; line-height: 1.6; margin-bottom: 16px; }

.section-head { margin: 4px 0 14px; }
.section-head h2 { margin: 0 0 8px; font-size: 1.25rem; }
.section-head p { margin: 0; color: var(--corp-muted); }

.cta {
  display: inline-flex; align-items: center; justify-content: center; padding: 12px 20px;
  border-radius: 10px; text-decoration: none; border: 0; background: var(--corp-accent);
  color: #fff; font-weight: 600; cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, opacity .2s ease;
}
.cta:hover { transform: translateY(-1px); box-shadow: 0 8px 18px rgba(31,79,168,.16); }
.cta.is-loading { opacity: .8; pointer-events: none; }


.kit-visual {
  margin: 8px 0 24px;
  border: 1px solid var(--corp-line);
  border-radius: 16px;
  background: #fff;
  overflow: hidden;
}
.kit-visual img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  display: block;
}
.kit-copy-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  padding: 14px 16px 18px;
}
.kit-copy-grid article {
  border: 1px solid var(--corp-line);
  border-radius: 12px;
  padding: 12px;
  background: #fcfcfc;
}
.kit-copy-grid h3 {
  margin: 0 0 6px;
  font-size: 1rem;
}
.kit-copy-grid p {
  margin: 0;
  color: #555;
  font-size: .92rem;
}

.product-zone { margin-bottom: 24px; }
.product-sets {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}
.product-set {
  border: 1px solid var(--corp-line);
  background: #fff;
  border-radius: 16px;
  padding: 16px;
  display: grid;
  gap: 14px;
  box-shadow: 0 5px 20px rgba(0,0,0,.035);
}
.product-set--featured { grid-column: 1 / -1; }
.product-media {
  min-height: 220px;
  border-radius: 12px;
  background: linear-gradient(135deg,#efefef 0%,#f7f7f7 100%);
  border: 1px dashed #dbdbdb;
}
.product-set--featured .product-media { min-height: 320px; }
.product-content h3 { margin: 0 0 8px; font-size: 1.22rem; }
.product-content p { margin: 0 0 10px; color: #525252; }
.detail-lines { margin: 0; padding-left: 18px; color: #5a5a5a; font-size: .94rem; }
.detail-lines li { margin-bottom: 5px; }

.why-us, .form-section, .contact-direct, .corp-footer {
  border: 1px solid var(--corp-line); border-radius: 14px; background: #fff;
}
.why-us { padding: 18px; margin-bottom: 24px; }
.why-us h2 { margin: 0 0 10px; font-size: 1.2rem; }
.why-us ul { margin: 0; padding-left: 18px; color: #4f4f4f; }
.why-us li { margin-bottom: 6px; }

.form-section { padding: 24px; }
.form-section h2 { margin: 0 0 14px; }
.corporate-form { display: grid; gap: 12px; }
.field-split { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
label { display: block; margin-bottom: 7px; font-weight: 500; }
input, textarea {
  width: 100%; border: 1px solid #ddd; border-radius: 10px; padding: 10px 12px; font: inherit; background: #fff;
}
input:focus, textarea:focus { outline: 2px solid rgba(31,79,168,.2); border-color: var(--corp-accent); }
input.input-error, textarea.input-error { border-color: #b32828; }
.form-helper { margin: 2px 0 0; color: var(--corp-muted); font-size: .93rem; }
.form-alert { border-radius: 10px; padding: 10px 12px; font-size: .94rem; }
.form-alert-error { background: #fff1f1; color: #7f1313; border: 1px solid #f0c2c2; }
.form-alert-success { background: #f1f8f1; color: #145a21; border: 1px solid #cbe4ce; }

.contact-direct { margin-top: 18px; padding: 18px; }
.contact-direct h2 { margin: 0 0 10px; font-size: 1.1rem; }
.contact-links, .social-links, .footer-socials { display: flex; gap: 12px; flex-wrap: wrap; }
.contact-links a, .social-links a, .corp-footer a { color: var(--corp-accent); text-decoration: none; }
.contact-links a:hover, .social-links a:hover, .corp-footer a:hover { text-decoration: underline; }
.social-links { margin-top: 10px; }

.corp-footer { margin-top: 18px; padding: 12px 16px; color: var(--corp-muted); font-size: .92rem; }
.corp-footer p { margin: 6px 0; }

@media (max-width: 900px) {
  .product-sets, .field-split, .kit-copy-grid { grid-template-columns: 1fr; }
  .product-set--featured .product-media, .product-media { min-height: 210px; }
  .corp-head { border-radius: 16px; }
}