/* ============================================
   KENSHO Beam — Design System
   顕照 · Light Revealed.
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Kanit:wght@300;400;600;700&family=Shippori+Mincho:wght@400;700;800&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;600;700;800;900&display=swap');

/* --- Tokens --- */
:root {
  --bg: #050508;
  --bg-card: rgba(255,255,255,0.03);
  --bg-card-hover: rgba(255,255,255,0.06);
  --blue: #0EA5E9;
  --blue-dim: rgba(14,165,233,0.15);
  --blue-glow: rgba(14,165,233,0.3);
  --white: #FFFFFF;
  --frost: #E8EDF2;
  --smoke: #6B7280;
  --deep-blue: #1E3A5F;
  --border: rgba(255,255,255,0.08);
  --border-hover: rgba(14,165,233,0.4);
  --green: #22C55E;
  --blue-series: #3B82F6;
  --amber: #F59E0B;
  --violet: #8B5CF6;
  --radius: 20px;
  --radius-sm: 12px;
  --shadow-card: 0 4px 30px rgba(0,0,0,0.4);
  --shadow-glow: 0 0 40px rgba(14,165,233,0.15);
  --font-heading: 'Orbitron', sans-serif;
  --font-body: 'Inter', 'Kanit', sans-serif;
  --font-jp: 'Shippori Mincho', serif;
  --font-thai: 'Kanit', sans-serif;
}

/* --- Reset --- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--frost);
  line-height: 1.6;
  overflow-x: hidden;
}
a { color: var(--blue); text-decoration: none; transition: color 0.3s; }
a:hover { color: var(--white); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

/* --- Layout --- */
.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-alt { background: rgba(255,255,255,0.01); }

.section-header { text-align: center; margin-bottom: 50px; }
.section-header h2 {
  font-family: var(--font-heading);
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 700;
  color: var(--white);
  letter-spacing: 1px;
  margin-bottom: 8px;
}
.section-header .jp-sub {
  font-family: var(--font-jp);
  font-size: 14px;
  color: var(--smoke);
  letter-spacing: 2px;
}
.section-header .thai-sub {
  font-family: var(--font-thai);
  font-size: 15px;
  color: var(--smoke);
  margin-top: 6px;
}

/* --- Navbar --- */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(5,5,8,0.85);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  transition: transform 0.3s;
}
.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.navbar .logo-link {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.navbar .logo-link img { height: 32px; }
.navbar .logo-text {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 2px;
}
.navbar .logo-text .beam {
  color: var(--blue);
  font-weight: 400;
  letter-spacing: 4px;
  font-size: 10px;
  display: block;
  margin-top: -4px;
}

.nav-links { display: flex; gap: 24px; align-items: center; }
.nav-links a {
  font-size: 13px;
  font-weight: 500;
  color: var(--smoke);
  transition: color 0.3s;
  letter-spacing: 0.5px;
}
.nav-links a:hover { color: var(--white); }
.nav-links .btn-cta {
  background: var(--blue);
  color: var(--white);
  padding: 8px 20px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 13px;
  transition: all 0.3s;
}
.nav-links .btn-cta:hover { background: #0284c7; box-shadow: 0 0 20px var(--blue-glow); }

.hamburger { display: none; background: none; border: none; cursor: pointer; padding: 10px; }
.hamburger span { display: block; width: 22px; height: 2px; background: var(--frost); margin: 5px 0; transition: 0.3s; }

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding-top: 60px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: url('../img/hero-bg.png') center/cover no-repeat;
  z-index: 0;
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, var(--bg) 0%, rgba(5,5,8,0.6) 40%, rgba(5,5,8,0.3) 70%, rgba(5,5,8,0.5) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 40px 24px;
  max-width: 700px;
}
.hero-kanji {
  font-family: var(--font-jp);
  font-size: clamp(40px, 8vw, 72px);
  font-weight: 800;
  color: var(--white);
  letter-spacing: 8px;
  line-height: 1;
  margin-bottom: 4px;
  text-shadow: 0 0 60px var(--blue-glow);
}
.hero-brand {
  font-family: var(--font-heading);
  font-size: clamp(28px, 5vw, 48px);
  font-weight: 700;
  color: var(--white);
  letter-spacing: 6px;
}
.hero-brand .beam { color: var(--blue); }
.hero-tagline {
  font-family: var(--font-heading);
  font-size: clamp(14px, 2.5vw, 20px);
  font-weight: 400;
  color: var(--blue);
  letter-spacing: 6px;
  margin: 8px 0 20px;
}
.hero-desc {
  font-family: var(--font-thai);
  font-size: 16px;
  color: var(--smoke);
  line-height: 1.7;
  margin-bottom: 8px;
}
.hero-specs {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  margin: 20px 0 30px;
}
.hero-spec {
  text-align: center;
}
.hero-spec .val {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 700;
  color: var(--blue);
}
.hero-spec .lbl {
  font-size: 11px;
  color: var(--smoke);
  margin-top: 2px;
}
.hero-ctas {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--blue), #0284c7);
  color: var(--white);
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 16px;
  font-family: var(--font-thai);
  transition: all 0.3s;
  box-shadow: 0 4px 20px rgba(14,165,233,0.25);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: none;
  cursor: pointer;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 30px rgba(14,165,233,0.4); color: var(--white); }
.btn-secondary {
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(10px);
  color: var(--white);
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 15px;
  font-family: var(--font-thai);
  border: 1px solid var(--border);
  transition: all 0.3s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn-secondary:hover { background: rgba(255,255,255,0.12); border-color: var(--blue); color: var(--white); }

/* --- Benefits --- */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.benefit-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  text-align: center;
  transition: all 0.3s;
}
.benefit-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}
.benefit-icon {
  font-size: 36px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 64px; height: 64px;
  margin: 0 auto 16px;
  border-radius: 16px;
  background: var(--blue-dim);
  color: var(--blue);
}
.benefit-card h3 {
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 600;
  color: var(--white);
  letter-spacing: 1px;
  margin-bottom: 4px;
}
.benefit-card .jp {
  font-family: var(--font-jp);
  font-size: 12px;
  color: var(--smoke);
  margin-bottom: 10px;
}
.benefit-card p {
  font-family: var(--font-thai);
  font-size: 14px;
  color: var(--smoke);
  line-height: 1.6;
}

/* --- Product Cards --- */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}
.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.3s;
  position: relative;
}
.product-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}
.product-card.featured { border-color: var(--blue); }
.product-card .badge {
  position: absolute;
  top: 12px; right: 12px;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
  z-index: 2;
  letter-spacing: 0.5px;
}
.product-card .badge.bestseller { background: var(--blue); color: var(--white); }
.product-card .badge.flagship { background: var(--violet); color: var(--white); }
.product-card .badge.maxpower { background: var(--amber); color: #000; }
.product-img {
  position: relative;
  width: 100%;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: linear-gradient(135deg, #0a0a0f, #0d1117);
}
.product-img img { width: 100%; height: 100%; object-fit: contain; padding: 16px; }
.product-img .accent-bar {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
}
.product-body { padding: 20px; }
.product-body .series-tag {
  font-family: var(--font-heading);
  font-size: 10px;
  letter-spacing: 2px;
  margin-bottom: 4px;
}
.product-body h3 {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 2px;
}
.product-body .jp-name {
  font-family: var(--font-jp);
  font-size: 12px;
  color: var(--smoke);
  margin-bottom: 12px;
}
.product-body .specs-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 16px;
}
.product-body .specs-list li {
  font-size: 13px;
  color: var(--smoke);
  display: flex;
  align-items: center;
  gap: 6px;
}
.product-body .specs-list li .check { color: var(--blue); font-size: 14px; }
.product-body .price {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
}
.product-body .btn-inquiry {
  display: block;
  text-align: center;
  padding: 10px;
  border-radius: var(--radius-sm);
  font-family: var(--font-thai);
  font-weight: 600;
  font-size: 14px;
  transition: all 0.3s;
  border: 1px solid var(--border);
  color: var(--frost);
}
.product-body .btn-inquiry:hover { border-color: var(--blue); background: var(--blue-dim); color: var(--white); }

/* --- Spec Table --- */
.spec-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
.spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  min-width: 600px;
}
.spec-table thead th {
  background: rgba(255,255,255,0.04);
  padding: 14px 12px;
  text-align: center;
  font-family: var(--font-heading);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--frost);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.spec-table thead th:first-child { text-align: left; min-width: 120px; }
.spec-table thead th.highlight { color: var(--blue); background: rgba(14,165,233,0.06); }
.spec-table tbody td {
  padding: 10px 12px;
  text-align: center;
  border-bottom: 1px solid rgba(255,255,255,0.03);
  color: var(--smoke);
}
.spec-table tbody td:first-child { text-align: left; font-weight: 600; color: var(--smoke); font-size: 12px; }
.spec-table tbody td.highlight { background: rgba(14,165,233,0.04); color: var(--blue); font-weight: 600; }
.spec-table tbody tr:hover td { background: rgba(255,255,255,0.02); }
.spec-table .price-row td { font-weight: 700; font-size: 16px; color: var(--white); padding: 14px 12px; border-top: 1px solid var(--border); }
.spec-table .price-row td.highlight { color: var(--blue); font-size: 18px; }

/* --- Socket Guide --- */
.socket-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
}
.socket-tag {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px 12px;
  text-align: center;
  transition: all 0.3s;
}
.socket-tag:hover { border-color: var(--blue); background: var(--blue-dim); }
.socket-tag .name {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 4px;
}
.socket-tag .cars { font-size: 11px; color: var(--smoke); line-height: 1.4; }

/* --- Steps --- */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: all 0.3s;
}
.step-card:hover { border-color: var(--border-hover); }
.step-card .step-num {
  position: absolute;
  top: -10px; right: -5px;
  font-family: var(--font-heading);
  font-size: 100px;
  font-weight: 900;
  color: rgba(255,255,255,0.02);
  line-height: 1;
}
.step-card .step-label {
  font-family: var(--font-heading);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 3px;
  margin-bottom: 12px;
}
.step-card h3 {
  font-family: var(--font-thai);
  font-size: 20px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
}
.step-card p {
  font-family: var(--font-thai);
  font-size: 14px;
  color: var(--smoke);
  line-height: 1.6;
}
.step-card .accent-top {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
}

/* --- Before/After --- */
.ba-section { position: relative; }
.ba-image {
  border-radius: var(--radius);
  overflow: hidden;
  max-width: 900px;
  margin: 0 auto;
  border: 1px solid var(--border);
}
.ba-image img { width: 100%; }
.ba-labels {
  display: flex;
  justify-content: space-between;
  max-width: 900px;
  margin: 12px auto 0;
}
.ba-labels span {
  font-family: var(--font-heading);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  padding: 4px 14px;
  border-radius: 6px;
}
.ba-labels .before { background: rgba(245,158,11,0.15); color: var(--amber); }
.ba-labels .after { background: rgba(34,197,94,0.15); color: var(--green); }

/* --- Store Cards --- */
.stores-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}
.store-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.3s;
}
.store-card:hover { border-color: var(--border-hover); }
.store-card .map-embed {
  width: 100%; height: 200px; border: 0;
}
.store-body { padding: 20px; }
.store-body h3 { font-size: 18px; font-weight: 700; color: var(--white); margin-bottom: 8px; }
.store-body .info { font-size: 13px; color: var(--smoke); line-height: 1.7; margin-bottom: 4px; }
.store-body .btn-map {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  padding: 10px 20px;
  background: var(--blue);
  color: var(--white);
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 13px;
  transition: all 0.3s;
}
.store-body .btn-map:hover { background: #0284c7; color: var(--white); }

/* --- FAQ --- */
.faq-list { max-width: 700px; margin: 0 auto; }
.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}
.faq-q {
  font-family: var(--font-thai);
  font-size: 16px;
  font-weight: 600;
  color: var(--white);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.faq-q .toggle {
  font-size: 20px;
  color: var(--blue);
  transition: transform 0.3s;
  flex-shrink: 0;
}
.faq-item.open .faq-q .toggle { transform: rotate(45deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s;
  font-family: var(--font-thai);
  font-size: 14px;
  color: var(--smoke);
  line-height: 1.7;
}
.faq-item.open .faq-a { max-height: 200px; padding-top: 10px; }

/* --- Footer --- */
.site-footer {
  padding: 50px 0 30px;
  border-top: 1px solid var(--border);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 30px;
}
.footer-col h4 {
  font-family: var(--font-heading);
  font-size: 11px;
  font-weight: 600;
  color: var(--frost);
  letter-spacing: 2px;
  margin-bottom: 14px;
}
.footer-col a {
  display: block;
  font-size: 13px;
  color: var(--smoke);
  margin-bottom: 8px;
  transition: color 0.3s;
}
.footer-col a:hover { color: var(--blue); }
.footer-bottom {
  text-align: center;
  font-size: 12px;
  color: rgba(255,255,255,0.2);
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

/* --- LINE Fab --- */
.line-fab {
  position: fixed;
  bottom: 30px; right: 30px;
  z-index: 999;
  width: 56px; height: 56px;
  border-radius: 50%;
  background: #06C755;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(6,199,85,0.4);
  transition: all 0.3s;
  border: none;
  cursor: pointer;
}
.line-fab:hover { transform: scale(1.1); box-shadow: 0 6px 30px rgba(6,199,85,0.5); }
.line-fab svg { width: 28px; height: 28px; fill: #fff; }

/* --- Scroll Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: block; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 60px;
    left: 0; right: 0;
    background: rgba(5,5,8,0.95);
    backdrop-filter: blur(20px);
    padding: 20px;
    border-bottom: 1px solid var(--border);
    gap: 16px;
  }
  .hero-kanji { font-size: 48px; }
  .hero-brand { font-size: 28px; letter-spacing: 4px; }
  .products-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .stores-grid { grid-template-columns: 1fr; }
  .hero-specs { gap: 16px; }
  .line-fab { bottom: 20px; right: 20px; }
}

/* --- Material Symbols --- */
.material-symbols-rounded {
  font-family: 'Material Symbols Rounded';
  font-variation-settings: 'FILL' 1, 'wght' 500, 'GRAD' 0, 'opsz' 24;
  font-style: normal;
  font-weight: normal;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  vertical-align: middle;
  user-select: none;
}
.benefit-icon .material-symbols-rounded { font-size: 30px; }
.benefit-card .benefit-icon { font-size: 30px; }
.btn-primary .material-symbols-rounded,
.btn-secondary .material-symbols-rounded { font-size: 18px; }
.btn-cta .material-symbols-rounded { font-size: 15px; }
.btn-inquiry .material-symbols-rounded { font-size: 15px; }
.btn-map .material-symbols-rounded { font-size: 15px; }
.store-body .info .material-symbols-rounded { font-size: 14px; color: var(--blue); }
.store-body h3 .material-symbols-rounded { font-size: 20px; }
.footer-col a .material-symbols-rounded { font-size: 14px; color: var(--smoke); }
.faq-a .material-symbols-rounded { font-size: 14px; }

/* === PROMO BAR === */
.promo-bar {
  position: sticky;
  top: 0;
  z-index: 1100;
  background: linear-gradient(90deg, #0c7abf 0%, var(--blue) 50%, #0c7abf 100%);
  color: #fff;
  font-family: var(--font-thai);
  font-size: 14px;
  padding: 10px 20px;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}
.promo-bar strong { color: #FFF176; }
.promo-bar a { color: #FFF176; font-weight: 700; text-decoration: underline; white-space: nowrap; }
.promo-bar .promo-close {
  position: absolute; right: 14px; top: 50%; transform: translateY(-50%);
  background: none; border: none; color: #fff; cursor: pointer; opacity: 0.7; padding: 0;
  display: flex; align-items: center;
}
.promo-bar .promo-close:hover { opacity: 1; }

/* === LINE RESPONSE BADGE === */
.line-badge { font-family: var(--font-thai); font-size: 11px; color: var(--smoke); display: block; margin-top: 5px; text-align: center; }

/* === SELECTOR === */
.selector-wrap { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 40px 36px; max-width: 720px; margin: 0 auto; }
.selector-steps { display: flex; flex-direction: column; gap: 28px; }
.selector-step h4 { font-family: var(--font-en); font-size: 13px; letter-spacing: 2px; color: var(--blue); margin-bottom: 12px; }
.selector-options { display: flex; gap: 10px; flex-wrap: wrap; }
.sel-btn {
  font-family: var(--font-thai); font-size: 14px; padding: 10px 18px;
  border: 1px solid var(--border); border-radius: 8px; background: transparent;
  color: var(--smoke); cursor: pointer; transition: all .2s;
}
.sel-btn:hover { border-color: var(--blue); color: var(--text); }
.sel-btn.active { border-color: var(--blue); background: var(--blue-dim); color: var(--blue); font-weight: 600; }
.selector-result {
  margin-top: 28px; padding: 22px 24px; border-radius: 12px;
  border: 1px solid var(--blue); background: var(--blue-dim);
  display: none;
}
.selector-result.show { display: block; }
.selector-result .res-series { font-family: var(--font-en); font-size: 11px; letter-spacing: 2px; color: var(--blue); margin-bottom: 6px; }
.selector-result .res-name { font-family: var(--font-en); font-size: 22px; font-weight: 700; color: var(--text); }
.selector-result .res-reason { font-family: var(--font-thai); font-size: 14px; color: var(--smoke); margin-top: 8px; line-height: 1.7; }
.selector-result .res-price { font-family: var(--font-en); font-size: 20px; font-weight: 700; color: var(--blue); margin-top: 10px; }

/* === REVIEWS === */
.reviews-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.review-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 14px;
  padding: 22px 20px; transition: border-color .3s, transform .3s;
}
.review-card:hover { border-color: var(--blue); transform: translateY(-3px); }
.review-top { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; }
.review-avatar {
  width: 44px; height: 44px; border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), #0c4a8a);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-en); font-weight: 700; font-size: 16px; color: #fff; flex-shrink: 0;
}
.review-meta .name { font-family: var(--font-thai); font-size: 15px; font-weight: 600; color: var(--text); }
.review-meta .car { font-family: var(--font-en); font-size: 12px; color: var(--blue); letter-spacing: 1px; }
.review-stars { color: #F59E0B; font-size: 16px; margin-bottom: 10px; display: flex; gap: 2px; }
.review-stars .material-symbols-rounded { font-size: 17px; }
.review-quote { font-family: var(--font-thai); font-size: 14px; color: var(--smoke); line-height: 1.7; }
.review-tag {
  display: inline-block; margin-top: 12px; padding: 3px 10px; border-radius: 20px;
  background: var(--blue-dim); border: 1px solid var(--blue);
  font-family: var(--font-en); font-size: 11px; color: var(--blue); letter-spacing: 1px;
}

@media (max-width: 600px) {
  .selector-wrap { padding: 28px 18px; }
  .reviews-grid { grid-template-columns: 1fr; }
}

/* === INSTALLATION ROWS WITH IMAGES === */
.install-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
  margin-bottom: 40px;
}
.install-row-reverse { direction: rtl; }
.install-row-reverse > * { direction: ltr; }
.install-img { position: relative; border-radius: 16px; overflow: hidden; aspect-ratio: 4/3; }
.install-img img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .4s; }
.install-img:hover img { transform: scale(1.03); }
.install-img-badge {
  position: absolute; bottom: 14px; left: 14px;
  background: rgba(5,5,8,.75); backdrop-filter: blur(8px);
  border: 1px solid var(--border); border-radius: 8px;
  padding: 6px 12px; color: var(--text); font-family: var(--font-thai); font-size: 13px;
  display: flex; align-items: center; gap: 6px;
}
.install-img-badge .material-symbols-rounded { font-size: 15px; color: var(--blue); }
.install-steps-col { display: flex; flex-direction: column; gap: 20px; }
.install-steps-col .step-card { margin: 0; }

@media (max-width: 768px) {
  .install-row, .install-row-reverse { grid-template-columns: 1fr; direction: ltr; }
  .install-img { aspect-ratio: 16/9; }
}

/* ============================================================
   MOBILE POLISH — comprehensive responsive overhaul
   ============================================================ */

@media (max-width: 768px) {
  .section { padding: 48px 0; }
  .section-header h2 { font-size: 22px; letter-spacing: 2px; }
  .section-header .jp-sub { font-size: 10px; }
  .thai-sub { font-size: 14px; }
  .container { padding: 0 16px; }

  .promo-bar { font-size: 12px; padding: 8px 40px 8px 12px; gap: 6px; justify-content: flex-start; text-align: left; }
  .promo-bar .promo-close { right: 8px; }

  .nav-links .btn-cta { padding: 10px 16px; font-size: 14px; display: flex; align-items: center; gap: 8px; justify-content: center; border-radius: 10px; }
  .nav-links.open .btn-cta { width: 100%; }

  .hero { min-height: 90vh; padding-top: 56px; }
  .hero-kanji { font-size: 44px; line-height: 1; }
  .hero-brand { font-size: 26px; letter-spacing: 3px; }
  .hero-tagline { font-size: 15px; }
  .hero-specs { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: 24px; }
  .hero-spec .val { font-size: 26px; }
  .hero-spec .lbl { font-size: 9px; }
  .hero-ctas { flex-direction: column; gap: 12px; }
  .hero-ctas .btn-primary,
  .hero-ctas .btn-secondary { width: 100%; justify-content: center; padding: 14px 20px; font-size: 15px; }

  .benefits-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .benefit-card { padding: 16px 12px; }
  .benefit-icon { width: 48px; height: 48px; }
  .benefit-card h3 { font-size: 11px; }
  .benefit-card p { font-size: 12px; }

  .selector-wrap { padding: 24px 16px; }
  .sel-btn { font-size: 13px; padding: 12px 14px; min-height: 44px; flex: 1 0 auto; }

  .products-grid { grid-template-columns: 1fr; gap: 16px; }
  .product-img { aspect-ratio: 16/9; }
  .product-img img { padding: 12px; }
  .product-body { padding: 16px; }
  .product-body h3 { font-size: 20px; }
  .specs-list li { font-size: 13px; }
  .price { font-size: 22px; }
  .btn-inquiry { font-size: 14px; padding: 12px; min-height: 44px; }

  .spec-table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; border-radius: 12px; }
  .spec-table { min-width: 540px; font-size: 12px; }
  .spec-table td, .spec-table th { padding: 10px 12px; }

  .socket-grid { grid-template-columns: repeat(3, 1fr); gap: 10px; }
  .socket-item { padding: 12px 8px; font-size: 12px; }

  .install-row,
  .install-row-reverse { grid-template-columns: 1fr; gap: 16px; direction: ltr; }
  .install-img { aspect-ratio: 16/9; border-radius: 12px; }
  .install-steps-col { gap: 12px; }
  .step-card { padding: 16px; }
  .step-num { font-size: 36px; }

  .reviews-grid { grid-template-columns: 1fr; gap: 14px; }
  .review-card { padding: 16px; }
  .review-quote { font-size: 13px; }

  .stores-grid { grid-template-columns: 1fr; gap: 20px; }
  .store-card iframe { height: 180px; }
  .store-body { padding: 16px; }
  .btn-map { width: 100%; justify-content: center; min-height: 44px; }

  .faq-q { font-size: 14px; padding: 16px; line-height: 1.5; }
  .faq-a { font-size: 13px; padding: 0 16px 16px; }

  .contact-grid { grid-template-columns: 1fr; gap: 16px; }
  .footer-grid { gap: 20px; }

  .line-fab { width: 52px; height: 52px; bottom: 20px; right: 16px; }
}

@media (max-width: 400px) {
  .hero-kanji { font-size: 36px; }
  .hero-brand { font-size: 22px; }
  .benefits-grid { grid-template-columns: 1fr; }
  .hero-specs { grid-template-columns: repeat(2, 1fr); }
  .selector-options { flex-direction: column; }
  .sel-btn { width: 100%; }
}