/* ============================================
   SOUTH BLUES DESIGN — Design System
   ============================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Noto+Sans+JP:wght@300;400;500;600;700&display=swap');

/* --- CSS Custom Properties --- */
:root {
  /* Colors */
  --color-primary: #10B981;
  --color-primary-dark: #059669;
  --color-primary-darker: #047857;
  --color-primary-light: #D1FAE5;
  --color-primary-subtle: #ECFDF5;
  --color-text-heading: #111827;
  --color-text-body: #374151;
  --color-text-muted: #6B7280;
  --color-text-light: #9CA3AF;
  /* 見出し・ラベル等で参照される汎用テキスト色（旧コードで未定義だったため追加） */
  --color-text: #111827;
  --color-bg-white: #FFFFFF;
  --color-bg-gray: #F9FAFB;
  --color-bg-gray-alt: #F3F4F6;
  --color-border: #E5E7EB;
  --color-border-light: #F3F4F6;

  /* Typography */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Noto Sans JP', 'Outfit', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 8rem;

  /* Layout */
  --max-width: 1200px;
  --header-height: 80px;

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;
  --radius-full: 9999px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text-body);
  background-color: var(--color-bg-white);
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-text-heading);
  line-height: 1.3;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); font-weight: 800; }
h2 { font-size: clamp(1.8rem, 3.5vw, 3.5rem); font-weight: 700; }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); font-weight: 600; }
h4 { font-size: 1.125rem; font-weight: 600; }

p {
  line-height: 1.9;
  color: var(--color-text-body);
}

/* --- Layout Utilities --- */
.container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.section {
  padding: var(--space-3xl) 0;
}

/* 隣接セクションと地続きで見えるとき、間の余白を詰める */
.section--tight-top {
  padding-top: var(--space-lg);
}
.section--tight-bottom {
  padding-bottom: var(--space-lg);
}

.section--gray {
  background-color: var(--color-bg-gray);
}
.section--primary {
  background-color: var(--color-primary);
  position: relative;
  overflow: hidden;
}

.services-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

.section--primary .container {
  position: relative;
  z-index: 1;
}

.section--primary-subtle {
  background-color: var(--color-primary-subtle);
}

/* Section Header */
.section-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.section-label {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: var(--space-xs);
}

.section-title {
  margin-bottom: var(--space-sm);
}

.section-subtitle {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
}
.section-subtitle-w {
  font-size: 1.0625rem;
  color: var(--color-primary-subtle);
  max-width: 600px;
  margin: 0 auto;
}

/* --- Header --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: 1000;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-base), background var(--transition-base);
}

.site-header.scrolled {
  border-bottom-color: var(--color-border);
  background: rgba(255, 255, 255, 0.95);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-mark {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.1rem;
}

.logo-text {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--color-text-heading);
  letter-spacing: 0.03em;
}

.logo-text span {
  color: var(--color-primary);
}

/* Desktop Nav */
.nav-desktop {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav-link {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
  position: relative;
  padding: 0.25rem 0;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--transition-base);
}

.nav-link:hover {
  color: var(--color-text-heading);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.4rem;
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.nav-cta:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 1001;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text-heading);
  border-radius: 2px;
  transition: var(--transition-base);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Nav Overlay */
.nav-mobile {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.nav-mobile.active {
  display: flex;
  opacity: 1;
  pointer-events: all;
}

.nav-mobile a {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text-heading);
  transition: color var(--transition-fast);
}

.nav-mobile a:hover {
  color: var(--color-primary);
}

/* --- Hero Section --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: var(--header-height);
  overflow: hidden;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.hero-content {
  position: relative;
  z-index: 2;
}
.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background: var(--color-primary-subtle);
  color: var(--color-primary-dark);
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-md);
}

.hero-label::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--color-primary);
  border-radius: 50%;
}

.hero-title {
  font-size: clamp(2.4rem, 4.5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
}

.hero-title .accent {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  line-height: 1.9;
  margin-bottom: var(--space-lg);
  max-width: 500px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

/* Visual side of hero */
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: right;
}

.hero-image-wrap {
  width: 100%;
  filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.1));
}

.hero-image {
  width: 100%;
  display: block;
  clip-path: polygon(
    0 0,
    calc(100% - 80px) 0,
    calc(100% - 80px) 80px,
    100% 80px,
    100% 100%,
    0 100%
  );
  border-radius: 20px;
}

/* @keyframes float はファイル末尾（華やかパック）の translate+scale 版に統合。
   旧定義（translateYのみ）は後段で上書きされ未使用だったため削除。 */

.hero-graphic {
  width: 100%;
  max-width: 520px;
  aspect-ratio: 1;
  position: relative;
}

.hero-graphic-circle {
  position: absolute;
  border-radius: 50%;
  border: 1.5px solid var(--color-border);
}

.hero-graphic-circle:nth-child(1) {
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  animation: spin-slow 30s linear infinite;
}

.hero-graphic-circle:nth-child(2) {
  width: 75%;
  height: 75%;
  top: 12.5%;
  left: 12.5%;
  border-color: var(--color-primary-light);
  animation: spin-slow 25s linear infinite reverse;
}

.hero-graphic-circle:nth-child(3) {
  width: 50%;
  height: 50%;
  top: 25%;
  left: 25%;
  border-color: var(--color-primary);
  opacity: 0.3;
  animation: spin-slow 20s linear infinite;
}

.hero-graphic-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 120px;
  height: 120px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 20px 60px rgba(16, 185, 129, 0.3);
}

.hero-graphic-center svg {
  width: 48px;
  height: 48px;
  color: white;
}

/* Floating dots on hero circles */
.hero-dot {
  position: absolute;
  width: 12px;
  height: 12px;
  background: var(--color-primary);
  border-radius: 50%;
  box-shadow: 0 0 20px rgba(16, 185, 129, 0.4);
}

.hero-dot:nth-child(5) { top: 0; left: 50%; transform: translate(-50%, -50%); }
.hero-dot:nth-child(6) { top: 50%; right: 0; transform: translate(50%, -50%); }
.hero-dot:nth-child(7) { bottom: 12.5%; left: 12.5%; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.85rem 2rem;
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  letter-spacing: 0.02em;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.25);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.35);
}

.btn-outline {
  background: transparent;
  color: var(--color-text-heading);
  border: 1.5px solid var(--color-border);
}

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

.btn-arrow::after {
  content: '→';
  transition: transform var(--transition-fast);
}

.btn-arrow:hover::after {
  transform: translateX(4px);
}

/* --- Service Cards --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.service-card {
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-dark));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  width: 52px;
  height: 52px;
  background: var(--color-primary-subtle);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  color: var(--color-primary);
  font-size: 1.5rem;
  transition: background var(--transition-fast);
}

.service-card:hover .service-icon {
  background: var(--color-primary);
  color: white;
}

.service-card h3 {
  margin-bottom: var(--space-xs);
}

.service-card p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}

.service-tech {
  margin-top: var(--space-sm);
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.service-tech span {
  font-family: var(--font-heading);
  font-size: 0.7rem;
  font-weight: 500;
  padding: 0.2rem 0.6rem;
  background: var(--color-bg-gray);
  color: var(--color-text-muted);
  border-radius: var(--radius-full);
  letter-spacing: 0.02em;
}

/* --- Works / Portfolio Cards --- */
.works-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.work-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
}

.work-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.work-card-image {
  width: 100%;
  aspect-ratio: 16/10;
  background: var(--color-bg-gray-alt);
  overflow: hidden;
}

.work-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.work-card:hover .work-card-image img {
  transform: scale(1.05);
}

.work-card-body {
  padding: var(--space-md);
}

.work-card-tag {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-primary-subtle);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-xs);
  letter-spacing: 0.04em;
}

.work-card-body h3 {
  font-size: 1.1rem;
  margin-bottom: 0.3rem;
}

.work-card-date {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  color: var(--color-text-light);
  margin-bottom: var(--space-xs);
}

.work-card-body p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* --- Works Showcase (detailed project view) --- */
.work-showcase {
  position: relative;
  background: linear-gradient(135deg, #ffffff 0%, var(--color-primary-subtle) 100%);
  border: 1px solid var(--color-primary-light);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin-bottom: var(--space-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.work-showcase-header {
  margin-bottom: var(--space-lg);
}

.work-showcase-eyebrow {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.work-showcase-num {
  font-family: var(--font-heading);
  font-size: 2.4rem;
  font-weight: 800;
  line-height: 1;
  color: var(--color-primary-light);
  letter-spacing: -0.02em;
}

.work-showcase-eyebrow .work-card-tag {
  margin-bottom: 0;
}

.work-showcase-header h2 {
  margin-bottom: var(--space-sm);
}

.work-showcase-desc {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  max-width: 700px;
  line-height: 1.9;
}

.work-showcase-gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.work-screenshot {
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
}

.work-screenshot:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.work-screenshot img {
  width: 100%;
  display: block;
  transition: transform var(--transition-slow);
}

.work-screenshot:hover img {
  transform: scale(1.02);
}

.work-screenshot--wide {
  grid-column: 1 / -1;
}

.work-screenshot-caption {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  padding: var(--space-md);
  border-top: 1px solid var(--color-border-light);
  background: var(--color-bg-gray);
}

.caption-icon {
  font-size: 1.4rem;
  line-height: 1;
  flex-shrink: 0;
  margin-top: 0.15rem;
}

.work-screenshot-caption strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-heading);
  margin-bottom: 0.2rem;
}

.work-screenshot-caption p {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.work-showcase-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.work-showcase-tech span {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0.35rem 0.9rem;
  background: var(--color-bg-gray);
  color: var(--color-text-muted);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  letter-spacing: 0.02em;
  transition: all var(--transition-fast);
}

.work-showcase-tech span:hover {
  background: var(--color-primary-subtle);
  color: var(--color-primary-dark);
  border-color: var(--color-primary-light);
}

.work-divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--space-2xl) 0;
}

/* --- Numbers / Stats --- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  text-align: center;
}

.stat-item {
  padding: var(--space-lg);
}

.stat-number {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 0.4rem;
  white-space: nowrap;
}

.stat-number .suffix {
  font-size: 0.5em;
  font-weight: 600;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

/* --- CTA Section --- */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-darker));
  padding: var(--space-3xl) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 50%;
}

.cta-section h2 {
  color: white;
  margin-bottom: var(--space-sm);
}

.cta-section p {
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: var(--space-lg);
  font-size: 1.0625rem;
}

.btn-white {
  background: white;
  color: var(--color-primary-dark);
  font-weight: 700;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.1);
}

.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

/* --- Page Hero (sub pages) --- */
.page-hero {
  padding: calc(var(--header-height) + var(--space-3xl)) 0 var(--space-xl);
  text-align: center;
  background: var(--color-bg-gray);
  position: relative;
}

.page-hero .section-label {
  margin-bottom: var(--space-xs);
}

.page-hero h1 {
  margin-bottom: var(--space-sm);
}

.page-hero p {
  color: var(--color-text-muted);
  font-size: 1.0625rem;
  max-width: 600px;
  margin: 0 auto;
}

/* --- About / Company Table --- */
.company-table {
  width: 100%;
  border-collapse: collapse;
}

.company-table th,
.company-table td {
  padding: 1.2rem var(--space-md);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9375rem;
}

.company-table th {
  width: 200px;
  font-weight: 600;
  color: var(--color-text-heading);
  background: var(--color-bg-gray);
  font-family: var(--font-heading);
}

/* --- Contact Form --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-xl);
  align-items: start;
}

.contact-info-card {
  background: var(--color-bg-gray);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
}

.contact-info-item {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.contact-info-item:last-child {
  margin-bottom: 0;
}

.contact-info-icon {
  width: 40px;
  height: 40px;
  background: var(--color-primary-subtle);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  flex-shrink: 0;
}

.contact-info-item h4 {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  font-weight: 500;
  margin-bottom: 0.2rem;
}

.contact-info-item p {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-heading);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-heading);
}

.form-group label .required {
  color: #EF4444;
  font-size: 0.75rem;
  margin-left: 0.3rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  padding: 0.8rem 1rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg-white);
  color: var(--color-text-heading);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 150px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

/* --- Footer --- */
.site-footer {
  background: var(--color-text-heading);
  color: rgba(255, 255, 255, 0.7);
  padding: var(--space-xl) 0 var(--space-md);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer-brand .logo-text {
  color: white;
  margin-bottom: var(--space-sm);
}

.footer-brand p {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.8;
}

.footer-nav h4 {
  color: white;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

.footer-nav a {
  display: block;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
  padding: 0.3rem 0;
  transition: color var(--transition-fast);
}

.footer-nav a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-md);
  text-align: center;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.35);
}

/* --- Scroll Animations --- */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-up-delay-1 { transition-delay: 0.1s; }
.fade-up-delay-2 { transition-delay: 0.2s; }
.fade-up-delay-3 { transition-delay: 0.3s; }
.fade-up-delay-4 { transition-delay: 0.4s; }
.fade-up-delay-5 { transition-delay: 0.5s; }
.fade-up-delay-6 { transition-delay: 0.6s; }

/* --- Keyframes --- */
@keyframes spin-slow {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* --- Feature Section (About page) --- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.feature-card {
  text-align: center;
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.feature-number {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-primary-light);
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.feature-card h3 {
  margin-bottom: var(--space-xs);
}

.feature-card p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-description {
    margin: 0 auto var(--space-lg);
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-visual {
    margin-top: var(--space-lg);
  }

  .hero-image {
    max-width: 400px;
  }

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

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

  .work-showcase-gallery {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --space-3xl: 5rem;
    --space-2xl: 3.5rem;
  }

  .nav-desktop {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .hero {
    min-height: auto;
    padding-top: calc(var(--header-height) + var(--space-xl));
    padding-bottom: var(--space-xl);
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

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

  .work-showcase-gallery {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }

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

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .company-table th {
    width: 120px;
    padding: 1rem;
  }

  .company-table td {
    padding: 1rem;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .stat-number {
    font-size: 2.2rem;
  }
}

/* ==========================================================================
   AI Strategy Partnership — Main Service Block
   ========================================================================== */
.service-main {
  position: relative;
  background: linear-gradient(135deg, #ffffff 0%, var(--color-primary-subtle) 100%);
  border: 1px solid var(--color-primary-light);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin-bottom: var(--space-2xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}


.service-main-badge {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  font-family: var(--font-heading);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: white;
  background: var(--color-primary);
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-full);
}

.service-main-inner {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-lg);
  align-items: start;
}

.service-main-icon {
  width: 72px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: white;
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.service-main-body h3 {
  font-size: 1.6rem;
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}

.service-main-lead {
  font-size: 1rem;
  line-height: 1.9;
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
}

.service-main-lead strong {
  color: var(--color-primary-dark);
  font-weight: 600;
}

.service-tiers {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

/* 各tierは「左に写真・右に本文」の横並びカード */
.service-tier-img {
  flex-shrink: 0;
  width: 200px;
  align-self: stretch;
}

.service-tier-img img {
  width: 100%;
  height: 100%;
  min-height: 180px;
  object-fit: cover;
  display: block;
}

.service-tier-body {
  flex: 1;
  min-width: 0;
  padding: var(--space-md);
}

.service-tier {
  position: relative;
  display: flex;
  overflow: hidden;
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

/* 右上の三角アクセント */
.service-tier::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 100%;
  height: 100%;
  background: var(--color-primary-light);
  clip-path: polygon(100% 0, 100% 30%, 88% 0);
  pointer-events: none;
  z-index: 2;
}

.service-tier:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.service-tier-num {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.1em;
  margin-bottom: var(--space-xs);
}

.service-tier-label {
  font-weight: 700;
  margin-bottom: var(--space-xs);
  color: var(--color-text);
  font-size: 1.4rem;
}

.service-tier p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin: 0;
}

/* Solution block — このフェーズで解決できること */
.service-tier-solution {
  margin-top: var(--space-sm);
  padding-top: var(--space-sm);
  border-top: 1px dashed var(--color-border);
}

.service-tier-solution-label {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
}

.service-tier-solution p {
  color: var(--color-text-body);
}

/* Sub-services header */
.services-sub-header {
  text-align: center;
  margin-bottom: var(--space-lg);
}

.services-sub-title {
  font-size: 1.4rem;
  color: var(--color-text);
  margin-top: var(--space-xs);
}

/* Sub variant of service-card (smaller, lighter) — 3-column wrap */
.services-grid--sub {
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  max-width: 1100px;
  margin: 0 auto;
}

.service-card--sub {
  padding: var(--space-md);
}

.service-card--sub .service-icon {
  width: 44px;
  height: 44px;
  margin-bottom: var(--space-sm);
}

.service-card--sub h3 {
  font-size: 1rem;
  margin-bottom: var(--space-xs);
}

.service-card--sub p {
  font-size: 0.875rem;
  line-height: 1.75;
}

/* Works — 課題/変化 Story Cards (vertical with arrow) */
/* Stories: 1列フル幅で左右対比を見せる */
.works-grid--stories {
  grid-template-columns: 1fr;
  max-width: 1040px;
  margin: 0 auto;
}

.work-card--story {
  position: relative;
}

.work-card--story .work-card-body {
  padding: var(--space-lg);
}

.work-card--story h3 {
  font-size: 1.25rem;
  margin-bottom: var(--space-md);
  padding-right: 120px; /* バッジと被らないように */
}

/* 右上の丸囲み 効果バッジ */
.work-badge {
  position: absolute;
  top: 10px;
  right: var(--space-md);
  z-index: 3;
  width: 104px;
  height: 104px;
  border-radius: var(--radius-full);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
  background: linear-gradient(135deg, var(--color-accent-purple), #5B21B6);
}

.work-badge-value {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.work-badge-value small {
  font-size: 0.9rem;
  font-weight: 700;
}

.work-badge-label {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  opacity: 0.9;
  margin-top: 0.15rem;
}

/* 課題 → 変化 を横並びに（変化側を広めにして対比に変化をつける） */
.work-story {
  display: grid;
  grid-template-columns: 0.8fr auto 1.2fr;
  align-items: stretch;
  gap: var(--space-sm);
}

.work-story-panel {
  padding: var(--space-md);
  border-radius: var(--radius-sm);
}

.work-story-panel--issue {
  background: #F5F5F5;
}

.work-story-panel--result {
  background: var(--color-primary-subtle);
  display: flex;
  gap: var(--space-md);
  align-items: center;
}

/* 変化側だけ写真を左に1枚 */
.work-result-img {
  flex-shrink: 0;
  width: 120px;
  align-self: stretch;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.work-result-img img {
  width: 100%;
  height: 100%;
  min-height: 96px;
  object-fit: cover;
  display: block;
}

.work-result-text {
  flex: 1;
  min-width: 0;
}

.work-story-head {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  margin-bottom: 0.3rem;
}

.work-story-panel--issue .work-story-head {
  color: #757575;
}

.work-story-panel--result .work-story-head {
  color: var(--color-primary-dark);
}

.work-story-panel p {
  font-size: 0.875rem;
  line-height: 1.75;
  margin: 0;
  color: var(--color-text);
}

.work-story-panel p strong {
  color: var(--color-primary-dark);
  font-weight: 700;
  background: linear-gradient(transparent 60%, var(--color-primary-light) 60%);
  padding: 0 2px;
}

.work-story-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
  color: var(--color-primary);
  user-select: none;
}

.work-story-arrow-label {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-primary-dark);
}

.work-story-arrow-mark {
  font-size: 1.6rem;
  line-height: 1;
  font-weight: 700;
}

/* Responsive */
@media (max-width: 640px) {
  .service-tier {
    flex-direction: column;
  }
  .service-tier::before {
    display: none;
  }
  .service-tier-img {
    width: 100%;
  }
  .service-tier-img img {
    min-height: 160px;
    max-height: 200px;
  }

  /* Stories: 縦積みに切り替え、矢印記号だけ下向きに（ラベルは水平のまま） */
  .work-story {
    grid-template-columns: 1fr;
  }
  .work-story-arrow {
    flex-direction: row;
    gap: 0.4rem;
  }
  .work-story-arrow-mark {
    transform: rotate(90deg);
  }
  /* バッジを少し小さく */
  .work-badge {
    width: 84px;
    height: 84px;
    top: var(--space-sm);
    right: var(--space-sm);
  }
  .work-badge-value {
    font-size: 1.2rem;
  }
  .work-card--story h3 {
    padding-right: 92px;
  }
}

@media (max-width: 768px) {
  .service-main,
  .work-showcase {
    padding: var(--space-lg);
  }
  .service-main-inner {
    grid-template-columns: 1fr;
  }
  .service-main-icon {
    width: 56px;
    height: 56px;
  }
  .service-main-body h3 {
    font-size: 1.3rem;
  }
  .services-grid--sub {
    grid-template-columns: repeat(2, 1fr);
  }
  .service-main-badge {
    position: static;
    display: inline-block;
    margin-bottom: var(--space-sm);
  }
}

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

/* ==========================================================================
   華やかパック (2026-05-18): サブカラー + Hero装飾SVG + 装飾英字オーバーレイ
   ========================================================================== */

:root {
  --color-accent-purple: #7C3AED;
  --color-accent-purple-subtle: #F3F0FF;
  --color-accent-orange: #F97316;
  --color-accent-orange-subtle: #FFF7ED;
}

/* --- Hero decorative SVG background --- */
.hero {
  position: relative;
  overflow: hidden;
}

.hero-decorations {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.hero-decorations .blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.45;
  animation: float 9s ease-in-out infinite;
}

.hero-decorations .blob-1 {
  width: 480px;
  height: 480px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent-purple));
  top: -140px;
  left: -120px;
}

.hero-decorations .blob-2 {
  width: 360px;
  height: 360px;
  background: linear-gradient(135deg, var(--color-accent-orange), var(--color-primary));
  bottom: -100px;
  right: -80px;
  animation-delay: -4.5s;
}

.hero-decorations .blob-3 {
  width: 220px;
  height: 220px;
  background: linear-gradient(135deg, var(--color-accent-purple), var(--color-primary));
  top: 30%;
  right: 25%;
  opacity: 0.25;
  animation-delay: -2s;
  animation-duration: 11s;
}

.hero-decorations .dots {
  position: absolute;
  width: 220px;
  height: 220px;
  background-image: radial-gradient(var(--color-primary) 1.5px, transparent 1.5px);
  background-size: 22px 22px;
  opacity: 0.3;
  top: 80px;
  right: 80px;
  mask-image: radial-gradient(ellipse at center, black 40%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 40%, transparent 70%);
}

.hero .container {
  position: relative;
  z-index: 1;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(25px, -35px) scale(1.06); }
  66% { transform: translate(-15px, 20px) scale(0.96); }
}

/* --- Page hero (sub pages) — milder decoration --- */
.page-hero {
  position: relative;
  overflow: hidden;
}

.page-hero-decorations {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.page-hero-decorations .blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.35;
}

.page-hero-decorations .blob-1 {
  width: 320px;
  height: 320px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent-purple));
  top: -120px;
  left: -80px;
}

.page-hero-decorations .blob-2 {
  width: 240px;
  height: 240px;
  background: linear-gradient(135deg, var(--color-accent-orange), var(--color-primary));
  bottom: -100px;
  right: -60px;
}

.page-hero .container {
  position: relative;
  z-index: 1;
}

/* --- Decorative English overlay behind section headers --- */
.section-header {
  position: relative;
}

.section-bg-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-heading);
  font-size: clamp(5rem, 13vw, 12rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.10), rgba(124, 58, 237, 0.08));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
  z-index: 0;
  line-height: 1;
}

.section-header > *:not(.section-bg-text) {
  position: relative;
  z-index: 1;
}

/* --- Sub-color accents (small touches) --- */
.service-tier:nth-child(1) .service-tier-num {
  color: var(--color-primary);
}
.service-tier:nth-child(2) .service-tier-num {
  color: var(--color-accent-purple);
}
.service-tier:nth-child(3) .service-tier-num {
  color: var(--color-accent-orange);
}

/* 左上三角形の背景も01-03のサブカラーに合わせる */
.service-tier:nth-child(1)::before {
  background: var(--color-primary-light);
}
.service-tier:nth-child(2)::before {
  background: var(--color-accent-purple-subtle);
}
.service-tier:nth-child(3)::before {
  background: var(--color-accent-orange-subtle);
}

/* Solutionラベルも01-03のサブカラーに合わせる */
.service-tier:nth-child(1) .service-tier-solution-label {
  color: var(--color-primary);
}
.service-tier:nth-child(2) .service-tier-solution-label {
  color: var(--color-accent-purple);
}
.service-tier:nth-child(3) .service-tier-solution-label {
  color: var(--color-accent-orange);
}

@media (max-width: 768px) {
  .hero-decorations .blob-1 { width: 280px; height: 280px; }
  .hero-decorations .blob-2 { width: 220px; height: 220px; }
  .hero-decorations .blob-3 { display: none; }
  .hero-decorations .dots { width: 140px; height: 140px; }
  .section-bg-text { font-size: clamp(3rem, 18vw, 6rem); }
}

/* --- Hero News Badge --- */
.hero-news-badge {
  position: absolute;
  bottom: var(--space-lg);
  right: var(--space-md);
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem 1rem 0.5rem 0.5rem;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-md);
  color: var(--color-text-heading);
  z-index: 2;
  transition: box-shadow var(--transition-fast), transform var(--transition-fast);
}

.hero-news-badge:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.hero-news-label {
  font-family: var(--font-heading);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: white;
  background: var(--color-primary);
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-full);
  flex-shrink: 0;
  animation: pulse-badge 2.5s ease-in-out infinite;
}

@keyframes pulse-badge {
  0%, 100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); }
  50%       { box-shadow: 0 0 0 5px rgba(16, 185, 129, 0); }
}

.hero-news-text {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-body);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 280px;
}

.hero-news-arrow {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  color: var(--color-text-muted);
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.hero-news-badge:hover .hero-news-arrow {
  transform: translateX(3px);
  color: var(--color-primary);
}

@media (max-width: 768px) {
  .hero-news-badge {
    bottom: var(--space-md);
    right: var(--space-sm);
    left: var(--space-sm);
    border-radius: var(--radius-md);
  }
  .hero-news-text {
    max-width: none;
    flex: 1;
  }
}

/* --- News List --- */
.news-list {
  border-top: 1px solid var(--color-border);
  max-width: 860px;
  margin: 0 auto;
}

.news-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-border);
}

.news-meta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
  min-width: 220px;
}

.news-date {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
}

.news-category {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-primary-subtle);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.news-title-link {
  flex: 1;
  font-size: 0.9375rem;
  color: var(--color-text-heading);
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  transition: color var(--transition-fast);
}

a.news-title-link:hover {
  color: var(--color-primary);
}

a.news-title-link::after {
  content: '→';
  font-family: var(--font-heading);
  font-size: 0.875rem;
  color: var(--color-text-light);
  flex-shrink: 0;
  transition: transform var(--transition-fast), color var(--transition-fast);
}

a.news-title-link:hover::after {
  transform: translateX(4px);
  color: var(--color-primary);
}

@media (max-width: 768px) {
  .news-item {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-xs);
  }
  .news-meta {
    min-width: auto;
  }
}

/* Contact form messages */
.form-message {
  margin-top: var(--space-md);
  padding: var(--space-md);
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.form-message--success {
  background: var(--color-primary-subtle);
  border-left: 3px solid var(--color-primary);
  color: var(--color-primary-darker);
}

.form-message--error {
  background: #FEF2F2;
  border-left: 3px solid #DC2626;
  color: #991B1B;
}

/* --- News Single (お知らせ個別記事の本文) --- */
.news-single {
  max-width: 760px;
  margin: 0 auto;
}

.news-single-thumb {
  margin-bottom: var(--space-lg);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.news-single p {
  margin-bottom: var(--space-md);
}

.news-single h2,
.news-single h3,
.news-single h4 {
  margin: var(--space-lg) 0 var(--space-sm);
}

.news-single ul,
.news-single ol {
  margin: 0 0 var(--space-md) 1.4em;
}

.news-single ul { list-style: disc; }
.news-single ol { list-style: decimal; }

.news-single li {
  margin-bottom: 0.4rem;
}

.news-single a {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

.news-single img {
  border-radius: var(--radius-md);
  margin: var(--space-md) 0;
}

.news-single blockquote {
  border-left: 3px solid var(--color-primary-light);
  padding-left: var(--space-md);
  color: var(--color-text-muted);
  margin: var(--space-md) 0;
}

.news-single-back {
  margin-top: var(--space-xl);
  text-align: center;
}

/* --- Scroll to top button --- */
.scroll-top {
  position: fixed;
  right: var(--space-md);
  bottom: var(--space-md);
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.35);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity var(--transition-base), transform var(--transition-base),
    visibility var(--transition-base), background var(--transition-fast);
  z-index: 90;
}

.scroll-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top:hover {
  background: var(--color-primary-dark);
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.45);
}

.scroll-top svg {
  width: 20px;
  height: 20px;
  display: block;
}

@media (max-width: 768px) {
  .scroll-top {
    width: 44px;
    height: 44px;
    right: var(--space-sm);
    bottom: var(--space-sm);
  }
}