/* ==========================================================================
   INTEC Corporate — Main Stylesheet
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS Custom Properties
   -------------------------------------------------------------------------- */
:root {
  --color-primary:     #1a73a7;
  --color-primary-dark:#0d5a8a;
  --color-accent:      #0c6291;
  --color-blue-pale:   #eef5fb;
  --color-blue-light:  #d8eaf5;
  --color-white:       #ffffff;
  --color-gray-50:     #f7f8fa;
  --color-gray-100:    #f0f2f5;
  --color-gray-200:    #e4e7ec;
  --color-gray-400:    #a0aab4;
  --color-gray-600:    #6b7280;
  --color-text:        #1e2a35;
  --color-text-muted:  #5a6676;
  --color-dark-bg:     #0f2944;

  --font-sans: "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, "Yu Gothic Medium", "Yu Gothic", sans-serif;

  --container-width: 1160px;
  --container-pad:   24px;

  --section-pad-y:   88px;
  --section-pad-y-sm:52px;

  --radius-sm:  6px;
  --radius-md:  10px;
  --radius-lg:  16px;
  --radius-xl:  24px;

  --shadow-sm:  0 2px 8px rgba(0, 40, 80, 0.07);
  --shadow-md:  0 4px 20px rgba(0, 40, 80, 0.10);
  --shadow-lg:  0 8px 36px rgba(0, 40, 80, 0.13);

  --transition: 0.22s ease;
}

/* --------------------------------------------------------------------------
   2. Reset & Base
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-primary-dark); }

ul, ol { list-style: none; }

/* --------------------------------------------------------------------------
   3. Layout
   -------------------------------------------------------------------------- */
.container {
  max-width: calc(var(--container-width) + var(--container-pad) * 2);
  padding-inline: var(--container-pad);
  margin-inline: auto;
  width: 100%;
}

.pc-only { display: inline; }

/* --------------------------------------------------------------------------
   4. Typography
   -------------------------------------------------------------------------- */
.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 10px;
}
.section-label--light { color: rgba(255, 255, 255, 0.75); }

.section-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  line-height: 1.3;
  color: var(--color-text);
  margin-bottom: 16px;
}
.section-title--light { color: var(--color-white); }

.section-desc {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  max-width: 560px;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-header .section-desc { margin-inline: auto; }

.section-header--light .section-title,
.section-header--light .section-desc { color: var(--color-white); }
.section-header--light .section-desc { color: rgba(255, 255, 255, 0.8); }

/* --------------------------------------------------------------------------
   5. Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  transition: all var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}
.btn--primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn--outline:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--secondary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
  padding: 12px 28px;
  font-size: 0.875rem;
}
.btn--secondary:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn--white {
  background: var(--color-white);
  color: var(--color-primary);
  border-color: var(--color-white);
}
.btn--white:hover {
  background: var(--color-blue-pale);
  color: var(--color-primary-dark);
  border-color: var(--color-blue-pale);
  transform: translateY(-2px);
}

.section-footer-action {
  margin-top: 48px;
  text-align: center;
}

/* --------------------------------------------------------------------------
   6. Section Base
   -------------------------------------------------------------------------- */
.section-base { padding-block: var(--section-pad-y); }
.section-base--gray  { background: var(--color-gray-50); }
.section-base--blue  { background: linear-gradient(135deg, #1a73a7 0%, #0c6291 60%, #0a4f7a 100%); color: var(--color-white); }
.section-base--dark  { background: var(--color-dark-bg); color: var(--color-white); }

/* --------------------------------------------------------------------------
   7. Site Header
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-200);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

/* Logo */
.site-logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
  color: var(--color-text);
}
.site-logo-text:hover { color: var(--color-primary); }
.site-logo-text .logo-main {
  font-size: 1.375rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  color: var(--color-primary);
}
.site-logo-text .logo-sub {
  font-size: 0.625rem;
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
}

/* Nav */
.site-nav {
  display: flex;
  align-items: center;
  gap: 0;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-menu li a {
  display: block;
  padding: 8px 14px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}
.nav-menu li a:hover {
  color: var(--color-primary);
  background: var(--color-blue-pale);
}

.header-cta-btn {
  margin-left: 12px;
  padding: 9px 20px;
  background: var(--color-primary);
  color: var(--color-white) !important;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  transition: background var(--transition), transform var(--transition);
}
.header-cta-btn:hover {
  background: var(--color-primary-dark);
  color: var(--color-white);
  transform: translateY(-1px);
}

/* Hamburger */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-sm);
}
.menu-toggle:hover { background: var(--color-gray-100); }
.hamburger-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition);
}
.menu-toggle[aria-expanded="true"] .hamburger-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] .hamburger-bar:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] .hamburger-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* --------------------------------------------------------------------------
   8. Site Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background: #0f2944;
  color: rgba(255, 255, 255, 0.85);
  padding-top: 56px;
}

.footer-inner {
  display: flex;
  gap: 64px;
  align-items: flex-start;
  padding-bottom: 48px;
}

.footer-logo-text {
  display: inline-block;
  margin-bottom: 12px;
}
.footer-logo-text .logo-main {
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  color: var(--color-white);
}
.footer-tagline {
  font-size: 0.8125rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.6);
}

.footer-nav { flex: 1; }
.footer-nav-menu {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
}
.footer-nav-menu li a {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition);
}
.footer-nav-menu li a:hover { color: var(--color-white); }

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-block: 20px;
}
.copyright {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.45);
  text-align: center;
}

/* --------------------------------------------------------------------------
   9. Placeholder Figures
   -------------------------------------------------------------------------- */
.placeholder-figure {
  width: 100%;
  height: 180px;
  background: var(--color-gray-100);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}
.placeholder-figure--tall { height: 340px; }
.placeholder-figure--product { height: 220px; }

.placeholder-label {
  font-size: 0.8125rem;
  color: var(--color-gray-400);
  letter-spacing: 0.06em;
}

/* --------------------------------------------------------------------------
   10. Hero Section
   --------------------------------------------------------------------------
   背景画像: assets/images/hero-main.jpg を配置すると自動で表示されます。
   画像が存在しない場合はグラデーション背景で表示を維持します。
   -------------------------------------------------------------------------- */

/*
 * section 自体に background-image を設定。
 * hero-main.jpg があればそれが表示され、なければ background-color が底面に残る。
 * .hero-bg がグラデーション装飾層として前面に重なる（画像なし時の仮ビジュアル）。
 */
.section-hero {
  position: relative;
  min-height: 620px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background-color: #b8d4ec;
  background-image: url('../images/hero-main.png');
  background-size: cover;
  background-position: center top;
  background-repeat: no-repeat;
}

/* 装飾要素のコンテナ — 背景は透明のまま写真を遮らない */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.hero-deco {
  position: absolute;
  pointer-events: none;
}
.hero-deco--blob1 {
  width: 660px; height: 660px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(180, 215, 242, 0.55) 0%, transparent 68%);
  top: -170px; right: -70px;
}
.hero-deco--blob2 {
  width: 400px; height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(155, 200, 235, 0.45) 0%, transparent 65%);
  bottom: -100px; right: 18%;
}
.hero-deco--dots {
  width: 240px; height: 240px;
  right: 7%; top: 14%;
  background-image: radial-gradient(circle, rgba(70, 130, 190, 0.20) 1.5px, transparent 1.5px);
  background-size: 22px 22px;
}

/* テキスト可読性オーバーレイ — 左側を明るく保ちながら右へ透過 */
.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(
    to right,
    rgba(240, 248, 255, 0.93) 0%,
    rgba(232, 243, 253, 0.84) 30%,
    rgba(220, 238, 252, 0.58) 58%,
    rgba(200, 228, 250, 0.14) 100%
  );
}

.hero-inner {
  position: relative;
  z-index: 2;
  padding-block: 88px;
  width: 100%;
}

.hero-content {
  max-width: 600px;
}

.hero-eyebrow {
  display: inline-block;
  background: rgba(255, 255, 255, 0.82);
  color: var(--color-primary);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  padding: 5px 14px;
  border-radius: 100px;
  margin-bottom: 20px;
  border: 1px solid rgba(26, 115, 167, 0.22);
}

.hero-heading {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 900;
  line-height: 1.3;
  color: var(--color-text);
  margin-bottom: 20px;
}
.hero-heading-accent { color: var(--color-primary); }

.hero-subtext {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.85;
  margin-bottom: 36px;
  max-width: 520px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* Scroll indicator */
.hero-scroll-indicator {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  opacity: 0.5;
  transition: opacity var(--transition);
}
.hero-scroll-indicator:hover { opacity: 1; }
.scroll-arrow {
  display: block;
  width: 10px;
  height: 10px;
  border-bottom: 2px solid var(--color-primary);
  border-right: 2px solid var(--color-primary);
  transform: rotate(45deg);
  animation: scroll-bounce 1.6s ease-in-out infinite;
}
@keyframes scroll-bounce {
  0%, 100% { transform: rotate(45deg) translateY(0); }
  50%       { transform: rotate(45deg) translateY(4px); }
}

/* --------------------------------------------------------------------------
   11. About Section
   -------------------------------------------------------------------------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-text { max-width: 540px; }
.about-lead {
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.8;
  color: var(--color-text);
  margin-bottom: 18px;
}
.about-lead strong { color: var(--color-primary); }
.about-text p { margin-bottom: 14px; color: var(--color-text-muted); font-size: 0.9375rem; }
.about-text .btn { margin-top: 12px; }

.about-card-wrap { position: relative; }
.about-placeholder-img .placeholder-figure--tall {
  border-radius: var(--radius-xl);
}

.about-stat-badges {
  display: flex;
  gap: 16px;
  margin-top: 20px;
  justify-content: center;
}

.stat-badge {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  flex: 1;
}
.stat-num {
  display: block;
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--color-primary);
  line-height: 1.1;
}
.stat-num small { font-size: 0.8125rem; font-weight: 700; }
.stat-desc {
  display: block;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 4px;
}

/* --------------------------------------------------------------------------
   12. Strength Section
   -------------------------------------------------------------------------- */
.strength-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.strength-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
}
.strength-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.strength-icon { margin-bottom: 20px; display: flex; justify-content: center; }

.icon-circle {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.icon-circle--blue   { background: linear-gradient(135deg, #d8edf8, #b5d8f0); }
.icon-circle--green  { background: linear-gradient(135deg, #d4f0e4, #a8dcc0); }
.icon-circle--orange { background: linear-gradient(135deg, #fde8c0, #f9cc80); }

.icon-inner {
  width: 32px;
  height: 32px;
  border-radius: 50%;
}
.icon-inner--health  { background: var(--color-primary); }
.icon-inner--safety  { background: #2e9e6b; }
.icon-inner--support { background: #e07b1c; }

.strength-title {
  font-size: 1.0625rem;
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: 12px;
}
.strength-text {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}

/* --------------------------------------------------------------------------
   13. Fields (Business Field) Section
   -------------------------------------------------------------------------- */
.fields-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.field-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
}
.field-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.field-card-img {
  height: 150px;
  overflow: hidden;
}
.field-card-img .placeholder-figure {
  height: 100%;
  border-radius: 0;
  align-items: center;
  justify-content: center;
}

.field-icon-shape {
  width: 60px; height: 60px;
  border-radius: 50%;
}
.field-icon-shape--welfare  { background: linear-gradient(135deg, #1a73a7, #3b9fd8); }
.field-icon-shape--disaster { background: linear-gradient(135deg, #c0392b, #e74c3c); }
.field-icon-shape--health   { background: linear-gradient(135deg, #2e9e6b, #4db88c); }
.field-icon-shape--watch    { background: linear-gradient(135deg, #7f5af0, #a58cf5); }
.field-icon-shape--daily    { background: linear-gradient(135deg, #f5a623, #f9cc80); }
.field-icon-shape--other    { background: linear-gradient(135deg, #a0aab4, #c8d0d8); }

.field-card-body { padding: 16px 20px 20px; }
.field-card-title {
  font-size: 1rem;
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: 6px;
}
.field-card-text {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   14. Business Section
   -------------------------------------------------------------------------- */
.section-business .section-title,
.section-business .section-label { /* colors set by section-base--blue */ }

.business-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.business-lead {
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.7;
  color: var(--color-white);
  margin-bottom: 16px;
}

.business-main-text > p {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 24px;
  line-height: 1.8;
}

.business-features { margin-bottom: 32px; }
.business-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.9);
  padding-block: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}
.business-feature-item:first-child { border-top: 1px solid rgba(255, 255, 255, 0.12); }

.feature-check {
  display: inline-block;
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  position: relative;
  margin-top: 2px;
}
.feature-check::after {
  content: '';
  position: absolute;
  top: 4px;
  left: 7px;
  width: 5px;
  height: 9px;
  border-right: 2px solid var(--color-white);
  border-bottom: 2px solid var(--color-white);
  transform: rotate(45deg);
}

.business-targets-label {
  font-size: 0.8125rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.6);
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}

.business-target-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.target-tag {
  display: inline-block;
  background: rgba(255, 255, 255, 0.15);
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 7px 16px;
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 600;
  transition: background var(--transition);
}
.target-tag:hover { background: rgba(255, 255, 255, 0.25); }

/* --------------------------------------------------------------------------
   15. Products Section
   -------------------------------------------------------------------------- */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.product-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
}
.product-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-5px);
}

.product-card-img {
  position: relative;
  overflow: hidden;
}
.product-card-img .placeholder-figure--product {
  border-radius: 0;
}

.product-shape {
  width: 80px; height: 80px;
  border-radius: 50%;
}
.product-shape--welfare  { background: linear-gradient(135deg, #1a73a7, #4ca3d4); }
.product-shape--disaster { background: linear-gradient(135deg, #c0392b, #e74c3c); }
.product-shape--health   { background: linear-gradient(135deg, #2e9e6b, #5fc492); }

.product-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 0.6875rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}
.product-badge--new    { background: var(--color-primary); color: var(--color-white); }
.product-badge--popular { background: #e07b1c; color: var(--color-white); }

.product-card-body { padding: 16px 20px 24px; }
.product-category {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}
.product-title {
  font-size: 1rem;
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: 8px;
  line-height: 1.4;
}
.product-text {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   16. Scenes Section
   -------------------------------------------------------------------------- */
.scenes-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.scene-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
}
.scene-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.scene-shape {
  width: 56px; height: 56px;
  border-radius: 50%;
}
.scene-shape--welfare    { background: linear-gradient(135deg, #1a73a7, #3b9fd8); }
.scene-shape--medical    { background: linear-gradient(135deg, #c0392b, #e74c3c); }
.scene-shape--government { background: linear-gradient(135deg, #2e9e6b, #4db88c); }
.scene-shape--home       { background: linear-gradient(135deg, #f5a623, #f9cc80); }

.scene-card-body { padding: 16px 18px 20px; }
.scene-title {
  font-size: 0.9375rem;
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: 8px;
}
.scene-text {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   17. Brands Section
   -------------------------------------------------------------------------- */
.brands-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.brand-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
  text-align: center;
}
.brand-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.brand-logo-area { padding: 28px 20px 20px; }
.brand-logo-placeholder {
  width: 120px; height: 60px;
  border-radius: var(--radius-md);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: center;
}
.brand-logo-placeholder--blue  { background: linear-gradient(135deg, #1a73a7, #3b9fd8); }
.brand-logo-placeholder--green { background: linear-gradient(135deg, #2e9e6b, #4db88c); }
.brand-logo-placeholder--teal  { background: linear-gradient(135deg, #17a2b8, #20c997); }
.brand-logo-placeholder--gray  { background: linear-gradient(135deg, #6b7280, #9ca3af); }

.brand-logo-text {
  font-size: 0.75rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  color: var(--color-white);
}

.brand-card-body { padding: 0 18px 24px; }
.brand-name {
  font-size: 0.9375rem;
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: 6px;
}
.brand-desc {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   18. News Section
   -------------------------------------------------------------------------- */
.news-list {
  border-top: 1px solid var(--color-gray-200);
}

.news-item { border-bottom: 1px solid var(--color-gray-200); }

.news-item-link {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 20px 8px;
  transition: background var(--transition);
  color: var(--color-text);
  border-radius: var(--radius-sm);
}
.news-item-link:hover {
  background: var(--color-gray-50);
  color: var(--color-primary);
}

.news-date {
  flex-shrink: 0;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
  min-width: 80px;
}

.news-cat {
  flex-shrink: 0;
  display: inline-block;
  background: var(--color-blue-pale);
  color: var(--color-primary);
  border: 1px solid var(--color-blue-light);
  font-size: 0.6875rem;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: 100px;
  letter-spacing: 0.04em;
}

.news-title {
  font-size: 0.9375rem;
  font-weight: 600;
  flex: 1;
}
.news-item-placeholder { cursor: default; }
.news-item-placeholder:hover { background: transparent; color: var(--color-text); }

/* --------------------------------------------------------------------------
   19. Support Section
   -------------------------------------------------------------------------- */
.support-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.support-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 28px 24px 32px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
}
.support-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.support-card-icon { margin-bottom: 18px; }

.support-icon-shape {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
}
.support-icon-shape--faq     { background: linear-gradient(135deg, #1a73a7, #3b9fd8); }
.support-icon-shape--manual  { background: linear-gradient(135deg, #2e9e6b, #4db88c); }
.support-icon-shape--repair  { background: linear-gradient(135deg, #f5a623, #f9cc80); }
.support-icon-shape--contact { background: linear-gradient(135deg, #7f5af0, #a58cf5); }

.support-card-title {
  font-size: 1rem;
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: 10px;
}

.support-card-text {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 16px;
}

.support-card-link {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-primary);
}
.support-card-link:hover { color: var(--color-primary-dark); }

/* --------------------------------------------------------------------------
   20. Contact Section
   -------------------------------------------------------------------------- */
.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.contact-lead {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.85;
  margin-bottom: 28px;
}

.contact-info-list { margin-bottom: 0; }
.contact-info-item {
  display: flex;
  gap: 12px;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
  padding-block: 6px;
}
.contact-info-label {
  font-weight: 700;
  color: rgba(255, 255, 255, 0.5);
  min-width: 72px;
}
.contact-info-value { color: rgba(255, 255, 255, 0.85); }

.contact-actions {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-top: 44px;
}

.contact-btn {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 22px 28px;
  border-radius: var(--radius-lg);
  transition: all var(--transition);
  color: var(--color-white);
}

.contact-btn--form {
  background: var(--color-primary);
  border: 2px solid rgba(255, 255, 255, 0.2);
}
.contact-btn--form:hover {
  background: #1d7fc1;
  color: var(--color-white);
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.25);
}

.contact-btn--tel {
  background: rgba(255, 255, 255, 0.08);
  border: 2px solid rgba(255, 255, 255, 0.2);
}
.contact-btn--tel:hover {
  background: rgba(255, 255, 255, 0.14);
  color: var(--color-white);
  transform: translateY(-3px);
}

.contact-btn-icon {
  flex-shrink: 0;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
}

.contact-btn-text { display: flex; flex-direction: column; gap: 2px; }
.contact-btn-text strong { font-size: 1.0625rem; font-weight: 800; }
.contact-btn-text small  { font-size: 0.75rem; color: rgba(255, 255, 255, 0.65); font-weight: 400; }

/* --------------------------------------------------------------------------
   20. Page / Single / Archive
   -------------------------------------------------------------------------- */
.page-content { padding-block: 72px; max-width: 840px; }

.entry-header { margin-bottom: 32px; }
.entry-date { font-size: 0.875rem; color: var(--color-text-muted); margin-bottom: 8px; }
.entry-title { font-size: clamp(1.25rem, 2.5vw, 1.75rem); font-weight: 800; line-height: 1.4; }
.entry-title a { color: var(--color-text); }
.entry-title a:hover { color: var(--color-primary); }
.entry-thumbnail { margin-bottom: 32px; border-radius: var(--radius-lg); overflow: hidden; }
.entry-content { font-size: 0.9375rem; line-height: 1.85; color: var(--color-text-muted); }
.entry-content p { margin-bottom: 18px; }
.entry-excerpt { font-size: 0.9375rem; color: var(--color-text-muted); }

.archive-header { margin-bottom: 40px; }
.archive-title { font-size: 1.75rem; font-weight: 800; margin-bottom: 8px; }
.archive-list { border-top: 1px solid var(--color-gray-200); }
.archive-item { border-bottom: 1px solid var(--color-gray-200); padding-block: 16px; display: flex; gap: 16px; align-items: baseline; }
.archive-item .entry-title { font-size: 1rem; }

.post-navigation { margin-top: 48px; padding-top: 32px; border-top: 1px solid var(--color-gray-200); display: flex; justify-content: space-between; gap: 20px; }
.post-navigation a { font-size: 0.875rem; color: var(--color-primary); }

/* --------------------------------------------------------------------------
   21. Responsive — Tablet (≤ 1024px)
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  :root { --section-pad-y: 64px; }

  .hero-inner   { padding-block: 72px; }
  .about-grid   { gap: 40px; }
  .scenes-grid  { grid-template-columns: repeat(2, 1fr); }
  .brands-grid  { grid-template-columns: repeat(2, 1fr); }
  .fields-grid  { grid-template-columns: repeat(2, 1fr); }
}

/* --------------------------------------------------------------------------
   22. Responsive — Mobile (≤ 768px)
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
  :root {
    --section-pad-y:    48px;
    --container-pad:    16px;
  }

  .pc-only { display: none; }

  /* Header */
  .header-inner { height: 60px; }
  .menu-toggle  { display: flex; }

  .site-nav {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-white);
    flex-direction: column;
    align-items: stretch;
    padding: 24px 20px;
    overflow-y: auto;
    z-index: 999;
    gap: 0;
  }
  .site-nav.is-open { display: flex; }

  .nav-menu { flex-direction: column; align-items: stretch; gap: 0; }
  .nav-menu li a {
    padding: 14px 16px;
    font-size: 1rem;
    border-radius: 0;
    border-bottom: 1px solid var(--color-gray-100);
  }
  .header-cta-btn {
    margin: 20px 0 0;
    padding: 14px;
    text-align: center;
    border-radius: var(--radius-sm);
  }

  /* Hero */
  .section-hero { min-height: 560px; }
  .hero-inner { padding-block: 60px 52px; }
  .hero-content { max-width: 100%; }
  .hero-overlay {
    background: linear-gradient(
      160deg,
      rgba(240, 248, 255, 0.93) 0%,
      rgba(232, 243, 253, 0.88) 50%,
      rgba(215, 235, 252, 0.65) 100%
    );
  }

  /* About */
  .about-grid { grid-template-columns: 1fr; gap: 32px; }

  /* Strength */
  .strength-grid { grid-template-columns: 1fr; gap: 20px; }

  /* Fields */
  .fields-grid { grid-template-columns: 1fr 1fr; gap: 16px; }

  /* Business */
  .business-grid { grid-template-columns: 1fr; gap: 36px; }

  /* Products */
  .products-grid { grid-template-columns: 1fr; gap: 20px; }

  /* Scenes */
  .scenes-grid { grid-template-columns: 1fr 1fr; gap: 16px; }

  /* Brands */
  .brands-grid { grid-template-columns: 1fr 1fr; gap: 16px; }

  /* News */
  .news-item-link { flex-wrap: wrap; gap: 6px; }
  .news-title { width: 100%; }

  /* Contact */
  .contact-inner { grid-template-columns: 1fr; gap: 40px; }
  .contact-actions { padding-top: 0; }

  /* Footer */
  .footer-inner { flex-direction: column; gap: 32px; padding-bottom: 36px; }
  .footer-nav-menu { flex-direction: column; gap: 2px; }
}

@media (max-width: 480px) {
  .fields-grid  { grid-template-columns: 1fr; }
  .scenes-grid  { grid-template-columns: 1fr; }
  .brands-grid  { grid-template-columns: 1fr; }
}