/* ============================================
   RAYZON Acrylic — Global Stylesheet
   Brand: #1B3A5C deep blue | #C8974A warm gold
   ============================================ */

* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --white: #FFFFFF;
  --light-gray: #F5F5F7;
  --text-dark: #1A1A1A;
  --text-mid: #666666;
  --brand-blue: #1B3A5C;
  --brand-blue-hover: #15497A;
  --warm-gold: #C8974A;
  --border: #E5E5E7;
}

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  color: var(--text-dark);
  background: var(--white);
  line-height: 1.6;
  font-size: 16px;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== NAV ===== */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  height: 64px;
  display: flex;
  align-items: center;
}
nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
.logo {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 1px;
  color: var(--brand-blue);
}
.logo span { color: var(--text-dark); font-weight: 300; }
.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
  align-items: center;
}
.nav-links a {
  font-size: 15px;
  color: var(--text-dark);
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--brand-blue); }
.nav-links a.active { color: var(--brand-blue); font-weight: 600; }
.nav-cta {
  background: var(--brand-blue);
  color: var(--white) !important;
  padding: 8px 20px;
  border-radius: 6px;
  font-weight: 600;
  transition: background 0.2s;
}
.nav-cta:hover { background: var(--brand-blue-hover); }

/* ===== BUTTONS ===== */
.btn-primary {
  background: var(--brand-blue);
  color: var(--white);
  padding: 14px 32px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 15px;
  transition: background 0.2s;
  display: inline-block;
  border: none;
  cursor: pointer;
}
.btn-primary:hover { background: var(--brand-blue-hover); }
.btn-secondary {
  border: 2px solid var(--brand-blue);
  color: var(--brand-blue);
  padding: 12px 32px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 15px;
  transition: all 0.2s;
  display: inline-block;
  background: transparent;
  cursor: pointer;
}
.btn-secondary:hover { background: var(--brand-blue); color: var(--white); }

/* ===== HERO (home) ===== */
.hero {
  background: var(--light-gray);
  padding: 80px 0 100px;
}
.hero-inner {
  display: flex;
  align-items: center;
  gap: 60px;
}
.hero-text { flex: 1; }
.hero-text h1 {
  font-size: 42px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
}
.hero-text p {
  font-size: 18px;
  color: var(--text-mid);
  margin-bottom: 32px;
  max-width: 500px;
}
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-visual {
  flex: 1;
  display: flex;
  gap: 12px;
  height: 360px;
}
.hero-visual .img-card {
  flex: 1;
  background: linear-gradient(135deg, #E8EEF5 0%, #D6E0ED 100%);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  color: var(--brand-blue);
  font-size: 14px;
  font-weight: 600;
  text-align: center;
  padding: 20px;
}
.hero-visual .img-card:nth-child(2) { margin-top: 30px; }
.hero-visual .img-card:nth-child(3) { margin-top: -15px; }
.hero-visual .img-card .placeholder-icon {
  font-size: 48px;
  margin-bottom: 12px;
  opacity: 0.5;
}

/* ===== PAGE HEADER (subpages) ===== */
.page-header {
  background: var(--light-gray);
  padding: 56px 0 64px;
  text-align: center;
}
.page-header h1 {
  font-size: 34px;
  font-weight: 800;
  margin-bottom: 12px;
}
.page-header p {
  color: var(--text-mid);
  font-size: 17px;
  max-width: 640px;
  margin: 0 auto;
}
.breadcrumb {
  font-size: 13px;
  color: var(--text-mid);
  margin-top: 16px;
}
.breadcrumb a { color: var(--brand-blue); }
.breadcrumb a:hover { text-decoration: underline; }

/* ===== TRUST BAR ===== */
.trust-bar {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 40px 0;
}
.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.trust-item .num {
  font-size: 36px;
  font-weight: 800;
  color: var(--brand-blue);
  margin-bottom: 4px;
}
.trust-item .label {
  font-size: 14px;
  color: var(--text-mid);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ===== SECTION COMMON ===== */
section { padding: 80px 0; }
.section-title {
  text-align: center;
  margin-bottom: 48px;
}
.section-title h2 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 12px;
}
.section-title p {
  color: var(--text-mid);
  font-size: 17px;
}
.section-title.left {
  text-align: left;
}
.section-title.left p { max-width: 640px; }

/* ===== PRODUCT CARDS ===== */
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.product-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: box-shadow 0.3s, transform 0.3s;
  cursor: pointer;
}
.product-card:hover {
  box-shadow: 0 8px 30px rgba(0,0,0,0.08);
  transform: translateY(-4px);
}
.product-card .card-img {
  height: 200px;
  background: linear-gradient(135deg, #F0F4F8 0%, #E2E8F0 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 40px;
  color: var(--brand-blue);
  opacity: 0.4;
}
.product-card .card-body { padding: 24px; }
.product-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}
.product-card p {
  font-size: 14px;
  color: var(--text-mid);
  line-height: 1.5;
}
.product-card .card-link {
  margin-top: 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--brand-blue);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* ===== SELLING POINTS ===== */
.selling-points { background: var(--light-gray); }
.sp-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}
.sp-card { text-align: center; }
.sp-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--brand-blue);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin: 0 auto 24px;
}
.sp-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
}
.sp-card p {
  color: var(--text-mid);
  font-size: 15px;
  line-height: 1.7;
}

/* ===== STEPS ===== */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.step { text-align: center; position: relative; }
.step-num {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--brand-blue);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 800;
  margin: 0 auto 20px;
}
.step h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}
.step p {
  font-size: 14px;
  color: var(--text-mid);
  line-height: 1.6;
}
.step-arrow {
  position: absolute;
  top: 28px;
  right: -20px;
  color: var(--border);
  font-size: 24px;
}
.step:last-child .step-arrow { display: none; }

/* ===== WHY RAYZON (dark band) ===== */
.why-rayzon { background: var(--brand-blue); color: var(--white); }
.why-rayzon .section-title h2 { color: var(--white); }
.why-rayzon .section-title p { color: rgba(255,255,255,0.7); }
.why-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px 40px;
  max-width: 900px;
  margin: 0 auto;
}
.why-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 16px;
  line-height: 1.6;
}
.why-check {
  color: var(--warm-gold);
  font-size: 20px;
  flex-shrink: 0;
  margin-top: 2px;
}

/* ===== WORKSHOP GRID ===== */
.workshop { background: var(--light-gray); }
.workshop-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.workshop-img {
  height: 240px;
  border-radius: 12px;
  background: linear-gradient(135deg, #D6DDE5 0%, #C4CDD8 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand-blue);
  font-size: 14px;
  font-weight: 600;
  text-align: center;
  opacity: 0.6;
}
.workshop-img .label {
  background: rgba(255,255,255,0.85);
  padding: 8px 16px;
  border-radius: 6px;
}

/* ===== FAQ ===== */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 24px 0;
}
.faq-item:first-child { border-top: 1px solid var(--border); }
.faq-item summary {
  font-size: 17px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  font-size: 24px;
  color: var(--brand-blue);
  transition: transform 0.2s;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item .answer {
  margin-top: 12px;
  color: var(--text-mid);
  font-size: 15px;
  line-height: 1.7;
}

/* ===== CTA BAND ===== */
.cta-section {
  background: var(--light-gray);
  text-align: center;
  padding: 80px 0;
}
.cta-section h2 {
  font-size: 30px;
  font-weight: 700;
  margin-bottom: 16px;
}
.cta-section p {
  color: var(--text-mid);
  font-size: 17px;
  margin-bottom: 32px;
}

/* ===== CONTENT PAGE (rich text) ===== */
.content-section { padding: 64px 0; }
.content-section .container { max-width: 960px; }
.content-block { margin-bottom: 48px; }
.content-block h2 {
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 16px;
}
.content-block h3 {
  font-size: 19px;
  font-weight: 700;
  margin: 24px 0 12px;
}
.content-block p {
  color: var(--text-mid);
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 12px;
}
.content-block ul, .content-block ol {
  margin: 12px 0 12px 24px;
  color: var(--text-mid);
  font-size: 15px;
  line-height: 1.8;
}
.content-block li { margin-bottom: 6px; }
.content-block strong { color: var(--text-dark); }

/* ===== SPEC TABLE ===== */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0 24px;
  font-size: 15px;
}
.spec-table th {
  background: var(--brand-blue);
  color: var(--white);
  text-align: left;
  padding: 12px 16px;
  font-weight: 600;
}
.spec-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text-mid);
}
.spec-table tr:nth-child(even) td { background: var(--light-gray); }
.spec-table td:first-child {
  font-weight: 600;
  color: var(--text-dark);
  width: 30%;
}

/* ===== PROCESS TIMELINE (capabilities) ===== */
.process-list {
  list-style: none;
  counter-reset: proc;
}
.process-list li {
  counter-increment: proc;
  display: flex;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  align-items: flex-start;
}
.process-list li:last-child { border-bottom: none; }
.process-list li::before {
  content: counter(proc, decimal-leading-zero);
  font-size: 22px;
  font-weight: 800;
  color: var(--warm-gold);
  min-width: 36px;
}
.process-list h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 4px;
}
.process-list p {
  color: var(--text-mid);
  font-size: 15px;
  line-height: 1.6;
}

/* ===== EQUIPMENT GRID ===== */
.equip-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.equip-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  background: var(--white);
}
.equip-card .equip-img {
  height: 140px;
  background: linear-gradient(135deg, #F0F4F8 0%, #E2E8F0 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  color: var(--brand-blue);
  opacity: 0.6;
}
.equip-card .equip-body { padding: 16px 20px; }
.equip-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
}
.equip-card p {
  font-size: 13px;
  color: var(--text-mid);
  line-height: 1.5;
}

/* ===== CONTACT FORM ===== */
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
.contact-form {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 8px;
}
.form-group label .req { color: #C0392B; }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 15px;
  font-family: inherit;
  color: var(--text-dark);
  background: var(--white);
  transition: border-color 0.2s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--brand-blue);
}
.form-group textarea { min-height: 120px; resize: vertical; }
.contact-side h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 16px;
}
.contact-side p {
  color: var(--text-mid);
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 24px;
}
.contact-info-item {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
  align-items: flex-start;
}
.contact-info-item .icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--light-gray);
  color: var(--brand-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.contact-info-item .text strong {
  display: block;
  font-size: 15px;
  margin-bottom: 2px;
}
.contact-info-item .text span {
  color: var(--text-mid);
  font-size: 14px;
}
.form-note {
  font-size: 13px;
  color: var(--text-mid);
  margin-top: 12px;
  line-height: 1.5;
}

/* ===== NOTICE BOX ===== */
.notice-box {
  background: var(--light-gray);
  border-left: 4px solid var(--warm-gold);
  padding: 16px 20px;
  border-radius: 0 8px 8px 0;
  font-size: 14px;
  color: var(--text-mid);
  margin: 24px 0;
  line-height: 1.7;
}
.notice-box strong { color: var(--text-dark); }

/* ===== FOOTER ===== */
footer {
  background: var(--text-dark);
  color: rgba(255,255,255,0.6);
  padding: 60px 0 24px;
  font-size: 14px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand .logo { color: var(--white); margin-bottom: 12px; display: block; }
.footer-brand .logo span { color: rgba(255,255,255,0.5); }
.footer-brand p { line-height: 1.7; }
.footer-col h4 {
  color: var(--white);
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 16px;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 8px; }
.footer-col a:hover { color: var(--white); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  text-align: center;
  font-size: 13px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .hero-inner { flex-direction: column; }
  .hero-visual { width: 100%; height: auto; flex-direction: row; }
  .hero-visual .img-card:nth-child(2),
  .hero-visual .img-card:nth-child(3) { margin-top: 0; }
  .trust-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .sp-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .step-arrow { display: none; }
  .workshop-grid { grid-template-columns: 1fr; }
  .equip-grid { grid-template-columns: 1fr; }
  .contact-wrap { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .hero-text h1 { font-size: 32px; }
  .page-header h1 { font-size: 28px; }
}