/* ==========================================
   WestOne Modern CSS
   ========================================== */

:root {
  --color-primary: #1a2744;
  --color-primary-light: #2d3f6e;
  --color-accent: #2563eb;
  --color-accent-hover: #1d4ed8;
  --color-text: #2a2a2a;
  --color-text-muted: #666;
  --color-bg: #ffffff;
  --color-bg-gray: #f5f7fa;
  --color-border: #e0e4ea;
  --font-base: 'Noto Sans JP', 'ヒラギノ角ゴ Pro W3', 'Hiragino Kaku Gothic Pro', Meiryo, 'MS PGothic', sans-serif;
  --max-width: 1100px;
  --radius: 8px;
  --radius-lg: 16px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.07);
  --shadow: 0 4px 20px rgba(0,0,0,0.10);
  --transition: all 0.25s ease;
}

/* ==========================================
   Reset & Base
   ========================================== */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-base);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--color-accent-hover);
}

ul { list-style: none; }
address { font-style: normal; }

/* ==========================================
   Utilities
   ========================================== */

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section-pad { padding: 80px 0; }
.bg-gray { background: var(--color-bg-gray); }

.section-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-primary);
  text-align: center;
  margin-bottom: 6px;
}

.section-sub {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  margin-bottom: 48px;
}

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

/* ==========================================
   Buttons
   ========================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
  font-family: var(--font-base);
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}
.btn-primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37,99,235,0.35);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-outline:hover {
  background: var(--color-primary);
  color: #fff;
  transform: translateY(-2px);
}

.btn-sm {
  padding: 8px 20px;
  font-size: 0.85rem;
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
  align-self: flex-start;
}
.btn-sm:hover {
  background: var(--color-primary-light);
  color: #fff;
  transform: translateY(-2px);
}

/* ==========================================
   Header & Navigation
   ========================================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(26,39,68,0.96);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: var(--transition);
}

.site-header.is-scrolled {
  box-shadow: 0 4px 24px rgba(0,0,0,0.2);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-logo img {
  height: 34px;
  width: auto;
}

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

.global-nav a {
  color: rgba(255,255,255,0.82);
  font-size: 0.83rem;
  padding: 7px 11px;
  border-radius: 4px;
  transition: var(--transition);
  white-space: nowrap;
}
.global-nav a:hover {
  color: #fff;
  background: rgba(255,255,255,0.1);
}

.global-nav .nav-cta {
  background: var(--color-accent);
  color: #fff;
  padding: 8px 16px;
  border-radius: var(--radius);
  margin-left: 8px;
}
.global-nav .nav-cta:hover {
  background: var(--color-accent-hover);
  color: #fff;
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  transition: var(--transition);
  border-radius: 2px;
}
.nav-toggle.is-open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ==========================================
   Hero
   ========================================== */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: #04091a; /* 画像が読み込まれるまでのフォールバック */
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

/* ドットグリッド — 画像の上に薄く重ねてテック感を演出 */
.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(37,99,235,0.18) 1px, transparent 1px);
  background-size: 36px 36px;
}

/* 右上のブルーグロー */
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 72% 30%, rgba(37,99,235,0.22) 0%, transparent 50%);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  /* 左側を濃くしてテキストを読みやすく、右側は薄めに画像を見せる */
  background: linear-gradient(
    105deg,
    rgba(4,9,26,0.82) 0%,
    rgba(4,9,26,0.65) 45%,
    rgba(4,9,26,0.35) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 120px 24px 80px;
  color: #fff;
}

.hero-content h1 {
  font-size: clamp(1.4rem, 3vw, 2.2rem);
  font-weight: 700;
  line-height: 1.55;
  margin-bottom: 20px;
}

.hero-sub {
  font-size: 1rem;
  color: rgba(255,255,255,0.82);
  max-width: 560px;
  margin-bottom: 32px;
  line-height: 1.85;
}

.hero-services {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 40px;
}
.hero-services span {
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.28);
  color: #fff;
  font-size: 0.78rem;
  padding: 5px 13px;
  border-radius: 20px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-cta .btn-outline {
  color: #fff;
  border-color: rgba(255,255,255,0.55);
}
.hero-cta .btn-outline:hover {
  background: rgba(255,255,255,0.12);
  color: #fff;
  border-color: #fff;
}

/* ==========================================
   Awards Bar
   ========================================== */

.awards-bar {
  background: var(--color-primary-light);
  padding: 18px 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.awards-inner {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
}

.award-item {
  display: flex;
  align-items: center;
  gap: 8px;
}
.award-item::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
  flex-shrink: 0;
}
.award-item a {
  color: rgba(255,255,255,0.82);
  font-size: 0.82rem;
  line-height: 1.5;
}
.award-item a:hover { color: #fff; }

/* ==========================================
   Features
   ========================================== */

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
  border-color: var(--color-accent);
}

.feature-number {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(37,99,235,0.08), rgba(37,99,235,0.15));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-accent);
  font-family: Arial, sans-serif;
}

.feature-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
}
.feature-card p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.85;
}

/* ==========================================
   Products
   ========================================== */

.products-list {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.product-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.product-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.product-image {
  width: 260px;
  flex-shrink: 0;
  background: #edf0f5;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}
.product-card:hover .product-image img { transform: scale(1.04); }

.product-body {
  padding: 32px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-header {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 14px;
}

.product-icon {
  width: 44px;
  height: 44px;
  object-fit: contain;
  flex-shrink: 0;
  margin-top: 2px;
}

.product-cat {
  font-size: 0.72rem;
  color: var(--color-accent);
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 3px;
}

.product-name {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.3;
}
.product-name span {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--color-text-muted);
  margin-left: 8px;
}

.product-body p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.85;
  flex: 1;
  margin-bottom: 20px;
}

/* ==========================================
   Web Works
   ========================================== */

.works-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.work-item {
  display: block;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  color: var(--color-text);
}
.work-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  color: var(--color-text);
}

.work-img {
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: #e8ecf0;
}
.work-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}
.work-item:hover .work-img img { transform: scale(1.06); }

.work-info {
  padding: 14px 16px;
}
.work-info h4 {
  font-size: 0.83rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
}
.work-info p {
  font-size: 0.73rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

.work-item.no-link { cursor: default; }

/* ==========================================
   News
   ========================================== */

.news-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.news-item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  gap: 20px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.news-item:hover { box-shadow: var(--shadow); }
.news-item.notice { border-left: 4px solid var(--color-accent); }

.news-date {
  min-width: 68px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-accent);
  padding-top: 3px;
  letter-spacing: 0.02em;
}

.news-body h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
  line-height: 1.5;
}
.news-body p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 12px;
}
.link-more {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-accent);
}
.link-more:hover { color: var(--color-accent-hover); }

/* ==========================================
   Footer
   ========================================== */

.site-footer {
  background: var(--color-primary);
  color: rgba(255,255,255,0.75);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 60px 24px 48px;
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}

.footer-company {
  min-width: 220px;
  max-width: 260px;
}
.footer-logo {
  height: 32px;
  width: auto;
  margin-bottom: 20px;
  filter: brightness(0) invert(1);
  opacity: 0.9;
}
.footer-company address p {
  font-size: 0.82rem;
  line-height: 1.85;
}
.footer-company strong {
  display: block;
  font-size: 0.95rem;
  color: #fff;
  font-weight: 700;
  margin-bottom: 10px;
}
.footer-company a {
  color: rgba(255,255,255,0.75);
}
.footer-company a:hover { color: #fff; }

.footer-nav {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.footer-nav-col h4 {
  font-size: 0.75rem;
  font-weight: 700;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255,255,255,0.14);
}
.footer-nav-col li { margin-bottom: 8px; }
.footer-nav-col a {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.6);
  transition: var(--transition);
}
.footer-nav-col a:hover { color: #fff; }

.footer-credit {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 20px 24px;
  text-align: center;
  max-width: var(--max-width);
  margin: 0 auto;
}
.footer-credit p {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.45);
  line-height: 1.85;
}

/* ==========================================
   Back to Top
   ========================================== */

#back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 46px;
  height: 46px;
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: 50%;
  font-size: 1.1rem;
  cursor: pointer;
  opacity: 0;
  transform: translateY(14px);
  transition: var(--transition);
  z-index: 99;
  box-shadow: var(--shadow);
}
#back-to-top.is-visible {
  opacity: 1;
  transform: translateY(0);
}
#back-to-top:hover {
  background: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37,99,235,0.4);
}

/* ==========================================
   Responsive
   ========================================== */

@media (max-width: 1024px) {
  .works-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-nav { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .section-pad { padding: 56px 0; }
  .section-title { font-size: 1.4rem; }
  .section-sub { margin-bottom: 36px; }

  .nav-toggle { display: flex; }

  .global-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--color-primary);
    padding: 8px 0 16px;
    display: none;
    box-shadow: 0 8px 24px rgba(0,0,0,0.25);
  }
  .global-nav.is-open { display: block; }
  .global-nav ul {
    flex-direction: column;
    gap: 0;
  }
  .global-nav a {
    display: block;
    padding: 12px 24px;
    border-radius: 0;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    font-size: 0.9rem;
  }
  .global-nav .nav-cta {
    margin: 12px 24px 0;
    border-radius: var(--radius);
    text-align: center;
    background: var(--color-accent);
  }

  .hero-content h1 { font-size: 1.35rem; }
  .hero-cta { flex-direction: column; align-items: flex-start; }

  .features-grid { grid-template-columns: 1fr; gap: 16px; }

  .product-card { flex-direction: column; }
  .product-image { width: 100%; height: 200px; }
  .product-body { padding: 24px; }

  .works-grid { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: 1fr; }

  .footer-inner { flex-direction: column; gap: 32px; }
  .footer-company { max-width: 100%; }
  .footer-nav { grid-template-columns: repeat(2, 1fr); }

  .awards-inner { flex-direction: column; gap: 10px; }
}

@media (max-width: 480px) {
  .works-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .footer-nav { grid-template-columns: 1fr 1fr; }
}

/* ==========================================
   Contact Form
   ========================================== */

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 48px;
  align-items: start;
}

.contact-form-wrap {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-sm);
}

.contact-form-wrap h2 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-accent);
  display: inline-block;
}

.form-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-item label {
  display: block;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.form-item label .req {
  color: var(--color-accent);
  font-size: 0.72rem;
  margin-left: 6px;
}

.form-item input[type="text"],
.form-item input[type="email"],
.form-item textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-family: var(--font-base);
  color: var(--color-text);
  background: #fff;
  transition: var(--transition);
  outline: none;
  -webkit-appearance: none;
}

.form-item input:focus,
.form-item textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.15);
}

.form-item textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.7;
}

.form-submit {
  margin-top: 8px;
}

.form-submit .btn {
  width: 100%;
  justify-content: center;
  padding: 14px;
  font-size: 1rem;
}

.contact-result {
  padding: 32px;
  border-radius: var(--radius-lg);
  text-align: center;
}

.contact-result.success {
  background: #f0faf4;
  border: 1px solid #b6e6c8;
}

.contact-result.error {
  background: #fef2f0;
  border: 1px solid #f5bfb8;
}

.contact-result h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-primary);
}

.contact-result p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.contact-info-box {
  background: var(--color-bg-gray);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.contact-info-box h2 {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}

.contact-info-box address {
  font-size: 0.875rem;
  line-height: 1.9;
  color: var(--color-text-muted);
}

.contact-info-box address strong {
  color: var(--color-text);
}

.access-section {
  margin-top: 48px;
}

.access-section h2 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-accent);
  display: inline-block;
}

.access-section p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.85;
  margin-bottom: 16px;
}

.map-wrap {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.map-wrap iframe {
  display: block;
  width: 100%;
  height: 400px;
  border: none;
}

@media (max-width: 900px) {
  .contact-layout { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .contact-form-wrap { padding: 24px; }
  .map-wrap iframe { height: 300px; }
}

/* ==========================================
   Subpage: Page Hero
   ========================================== */

.page-hero {
  background: var(--color-primary);
  padding: 100px 24px 36px;
  margin-top: 0;
}
.page-hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}
.page-hero h1 {
  color: #fff;
  font-size: clamp(1.3rem, 2.5vw, 1.9rem);
  font-weight: 700;
  line-height: 1.45;
}
.page-hero p {
  color: rgba(255,255,255,0.65);
  font-size: 0.82rem;
  margin-top: 8px;
  letter-spacing: 0.04em;
}

/* ==========================================
   Subpage: Breadcrumb
   ========================================== */

.breadcrumb {
  background: var(--color-bg-gray);
  border-bottom: 1px solid var(--color-border);
}
.breadcrumb-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 10px 24px;
  font-size: 0.76rem;
  color: var(--color-text-muted);
}
.breadcrumb a {
  color: var(--color-text-muted);
}
.breadcrumb a:hover { color: var(--color-accent); }
.breadcrumb span { margin: 0 6px; }

/* ==========================================
   Subpage: Page Body
   ========================================== */

.sp-body {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 56px 24px 80px;
}

.sp-section {
  padding: 48px 0;
  border-bottom: 1px solid var(--color-border);
}
.sp-section:first-child { padding-top: 0; }
.sp-section:last-child { border-bottom: none; }

.sp-section-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 3px solid var(--color-accent);
  display: inline-block;
}

/* Content pair (image + text) */
.content-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.content-pair.reverse { direction: rtl; }
.content-pair.reverse > * { direction: ltr; }

.content-pair img {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.content-pair h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
  line-height: 1.4;
}
.content-pair h3 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-text-muted);
  margin-bottom: 6px;
}
.content-pair p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.9;
  margin-bottom: 12px;
}
.content-pair p:last-child { margin-bottom: 0; }
.content-pair strong { color: var(--color-text); }

/* ==========================================
   Subpage: Sub-tabs (product pages)
   ========================================== */

.sub-tabs {
  display: flex;
  gap: 4px;
  margin: 32px 0 0;
  border-bottom: 2px solid var(--color-border);
  padding-bottom: 0;
}
.sub-tabs a {
  display: block;
  padding: 10px 20px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  border-bottom: none;
  border-radius: var(--radius) var(--radius) 0 0;
  background: var(--color-bg-gray);
  transition: var(--transition);
  margin-bottom: -2px;
}
.sub-tabs a:hover { color: var(--color-primary); background: #fff; }
.sub-tabs a.active {
  color: var(--color-primary);
  background: #fff;
  border-color: var(--color-border);
  border-bottom: 2px solid #fff;
  font-weight: 700;
}

/* ==========================================
   Subpage: Product Intro (eyecatch + info)
   ========================================== */

.product-intro {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 40px;
  align-items: start;
  margin-bottom: 40px;
}
.product-intro-img img {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.product-intro-info h1 {
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.3;
  margin-bottom: 4px;
}
.product-intro-info h1 small {
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--color-text-muted);
  margin-left: 10px;
}
.product-intro-info .product-label {
  font-size: 0.72rem;
  color: var(--color-accent);
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 8px;
  display: block;
}
.product-intro-info .info-block {
  margin-top: 20px;
}
.product-intro-info .info-block h3 {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.product-intro-info .info-block p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 14px;
}

/* ==========================================
   Subpage: Spec Tables
   ========================================== */

.sp-table-section {
  margin-bottom: 40px;
}
.sp-table-section h2 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
  padding-left: 12px;
  border-left: 4px solid var(--color-accent);
}
.sp-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  box-shadow: var(--shadow-sm);
  border-radius: var(--radius);
  overflow: hidden;
}
.sp-table tr:nth-child(even) { background: var(--color-bg-gray); }
.sp-table th {
  background: var(--color-primary);
  color: #fff;
  padding: 12px 16px;
  text-align: left;
  font-weight: 500;
  width: 220px;
  vertical-align: middle;
}
.sp-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
  color: var(--color-text);
}
.sp-table tr:last-child td { border-bottom: none; }
.sp-note {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  margin-top: 8px;
  line-height: 1.7;
}

/* ==========================================
   Subpage: Step Flow List
   ========================================== */

.step-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}
.step-list::before {
  content: '';
  position: absolute;
  left: 28px;
  top: 40px;
  bottom: 40px;
  width: 2px;
  background: var(--color-border);
}
.step-item {
  display: flex;
  gap: 24px;
  padding: 24px 0;
  position: relative;
}
.step-num {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.2;
  position: relative;
  z-index: 1;
}
.step-num strong {
  font-size: 1rem;
  color: #fff;
}
.step-body {
  flex: 1;
  padding-top: 8px;
}
.step-body h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}
.step-body p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.85;
}

/* ==========================================
   Subpage: Works list (websolution)
   ========================================== */

.sp-works-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* ==========================================
   Subpage: Privacy / Text content
   ========================================== */

.text-content {
  max-width: 800px;
}
.text-content h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
}
.text-content p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.9;
  margin-bottom: 24px;
}
.text-content dl {}
.text-content dt {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-primary);
  padding: 14px 16px;
  background: var(--color-bg-gray);
  border-left: 4px solid var(--color-accent);
  margin-top: 20px;
  border-radius: 0 var(--radius) var(--radius) 0;
}
.text-content dd {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.85;
  padding: 14px 16px;
  border: 1px solid var(--color-border);
  border-top: none;
  border-radius: 0 0 var(--radius) var(--radius);
}
.text-content dd ul {
  padding-left: 16px;
  margin-top: 8px;
}
.text-content dd li {
  list-style: disc;
  margin-bottom: 4px;
}

/* ==========================================
   Subpage: About page
   ========================================== */

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

/* ==========================================
   Subpage: Flow images (albumone_flow)
   ========================================== */

.flow-step {
  padding: 32px 0;
  border-bottom: 1px solid var(--color-border);
}
.flow-step:last-child { border-bottom: none; }
.flow-step h2 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
}
.flow-step p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.85;
  margin-bottom: 16px;
}
.flow-images {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 16px;
}
.flow-img-item {
  text-align: center;
}
.flow-img-item img {
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  max-width: 100%;
}
.flow-img-item figcaption {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  margin-top: 8px;
}

/* ==========================================
   Subpage: Link page
   ========================================== */

.link-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.link-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--color-bg-gray);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: var(--transition);
}
.link-item:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-sm);
}
.link-item img {
  height: 24px;
  width: auto;
}
.link-item a {
  font-weight: 700;
  color: var(--color-primary);
  font-size: 0.9rem;
}
.link-item a:hover { color: var(--color-accent); }

/* ==========================================
   Subpage: Responsive
   ========================================== */

@media (max-width: 768px) {
  .page-hero { padding: 88px 24px 28px; }
  .sp-body { padding: 36px 16px 60px; }

  .content-pair { grid-template-columns: 1fr; gap: 24px; }
  .content-pair.reverse { direction: ltr; }

  .product-intro { grid-template-columns: 1fr; }
  .product-intro-img { max-width: 320px; }

  .about-grid { grid-template-columns: 1fr; }
  .sp-works-grid { grid-template-columns: 1fr 1fr; }

  .step-list::before { left: 24px; }
  .step-num { width: 48px; height: 48px; }

  .sub-tabs { flex-wrap: wrap; }
  .sub-tabs a { font-size: 0.78rem; padding: 8px 14px; }

  .sp-table th { width: 140px; }
}

@media (max-width: 480px) {
  .sp-works-grid { grid-template-columns: 1fr; }
}