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

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

body {
  font-family: var(--font-primary);
  font-weight: 400;
  color: var(--color-text);
  background-color: var(--color-white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  text-decoration: none;
  color: inherit;
}

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

/* =============================================
   Typography
   ============================================= */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.3;
}

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

.section-padding {
  padding: var(--section-padding);
}

/* =============================================
   Section Header (共通)
   ============================================= */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-label {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
  position: relative;
  padding: 0 20px;
}

.section-label::before,
.section-label::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 30px;
  height: 1px;
  background: var(--color-accent);
}

.section-label::before { right: 100%; margin-right: -20px; }
.section-label::after  { left: 100%;  margin-left: -20px; }

.section-title {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.section-title span {
  color: var(--color-primary);
}

.section-desc {
  font-size: 1rem;
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.9;
}

/* Dark section variant */
.section-header.light .section-title {
  color: var(--color-white);
}

.section-header.light .section-desc {
  color: rgba(255,255,255,0.7);
}

/* =============================================
   Buttons
   ============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 36px;
  border-radius: 4px;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  transition: all var(--transition-base);
  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-light);
  border-color: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(21, 101, 192, 0.4);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,0.7);
}

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

.btn-accent {
  background: var(--color-accent);
  color: var(--color-dark);
  border-color: var(--color-accent);
}

.btn-accent:hover {
  background: #0097A7;
  border-color: #0097A7;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 188, 212, 0.4);
}

/* =============================================
   Scroll Reveal Animation
   ============================================= */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* =============================================
   Header & Navigation
   ============================================= */
#site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: all var(--transition-base);
  padding: 20px 0;
}

#site-header.scrolled {
  background: rgba(12, 26, 46, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 12px 0;
  box-shadow: 0 4px 24px rgba(0,0,0,0.3);
}

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

/* Logo */
.site-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo-mark {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: -0.02em;
  flex-shrink: 0;
  box-shadow: 0 4px 16px rgba(21, 101, 192, 0.5);
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-name {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: 0.05em;
  line-height: 1.2;
}

.logo-tagline {
  font-size: 0.65rem;
  font-weight: 400;
  color: rgba(255,255,255,0.55);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* Navigation */
.site-nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-size: 0.85rem;
  font-weight: 500;
  color: rgba(255,255,255,0.8);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color var(--transition-fast);
  position: relative;
  padding-bottom: 4px;
}

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

.nav-links a:hover {
  color: var(--color-white);
}

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

.nav-cta {
  padding: 10px 24px;
  font-size: 0.85rem;
}

/* Hamburger Menu */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 6px;
  padding: 4px;
  cursor: pointer;
  z-index: 1100;
}

.hamburger span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: all var(--transition-fast);
  transform-origin: center;
}

.hamburger.active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* =============================================
   Mobile Menu Overlay
   ============================================= */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(12, 26, 46, 0.98);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 40px;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.mobile-menu.open {
  display: flex;
  opacity: 1;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
}

.mobile-nav-links a {
  font-size: 1.4rem;
  font-weight: 600;
  color: rgba(255,255,255,0.85);
  letter-spacing: 0.08em;
  transition: color var(--transition-fast);
}

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

/* =============================================
   Hero Section
   ============================================= */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--color-dark);
  overflow: hidden;
}

/* Animated background */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg-gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 60% 40%, rgba(21,101,192,0.25) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 80% 80%, rgba(0,188,212,0.1) 0%, transparent 50%),
    linear-gradient(160deg, #0C1A2E 0%, #112240 50%, #0C1A2E 100%);
}

/* Grid pattern */
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

/* Floating shapes */
.hero-shapes {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  animation: floatShape 8s ease-in-out infinite;
}

.hero-shape-1 {
  width: 400px;
  height: 400px;
  background: rgba(21,101,192,0.2);
  top: -100px;
  right: 10%;
  animation-delay: 0s;
}

.hero-shape-2 {
  width: 300px;
  height: 300px;
  background: rgba(0,188,212,0.15);
  bottom: 10%;
  left: 5%;
  animation-delay: -3s;
}

.hero-shape-3 {
  width: 200px;
  height: 200px;
  background: rgba(0,137,123,0.1);
  top: 40%;
  right: 30%;
  animation-delay: -5s;
}

@keyframes floatShape {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%       { transform: translate(20px, -20px) scale(1.05); }
  66%       { transform: translate(-15px, 10px) scale(0.97); }
}

.hero-content {
  position: relative;
  z-index: 1;
  width: 100%;
}

.hero-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 100vh;
  padding: 120px 40px 100px;
  max-width: var(--container-width);
  margin: 0 auto;
}

.hero-text {
  max-width: 800px;
  width: 100%;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 188, 212, 0.12);
  border: 1px solid rgba(0, 188, 212, 0.3);
  border-radius: 100px;
  padding: 6px 16px;
  margin-bottom: 28px;
  animation: fadeInDown 0.8s ease both;
}

.hero-badge-dot {
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
  animation: pulse 2s ease infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(1.4); }
}

.hero-badge span {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-accent);
  letter-spacing: 0.08em;
}

.hero-headline {
  font-size: clamp(2.4rem, 5vw, 4.4rem);
  font-weight: 800;
  color: var(--color-white);
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 28px;
  animation: fadeInUp 0.9s ease 0.1s both;
}

.hero-headline .line-accent {
  display: block;
  background: linear-gradient(135deg, var(--color-accent), #4DD0E1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-headline .line-gold {
  display: block;
  background: linear-gradient(135deg, var(--color-gold), #FFD54F);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  color: rgba(255,255,255,0.7);
  line-height: 1.9;
  margin-bottom: 40px;
  max-width: 620px;
  margin-left: auto;
  margin-right: auto;
  animation: fadeInUp 0.9s ease 0.2s both;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
  animation: fadeInUp 0.9s ease 0.3s both;
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  animation: fadeInUp 1s ease 0.8s both;
}

.hero-scroll span {
  display: none;
}

.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.4), transparent);
  animation: scrollLine 2s ease infinite;
}

@keyframes scrollLine {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  51%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* Hero visual (right side) */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  animation: fadeInRight 1s ease 0.3s both;
}

.hero-card-stack {
  position: relative;
  width: 360px;
  height: 360px;
}

.hero-card {
  position: absolute;
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-xl);
  padding: 28px;
  box-shadow: var(--shadow-xl);
}

.hero-card-main {
  width: 280px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 3;
}

.hero-card-bg1 {
  width: 260px;
  top: calc(50% + 20px);
  left: calc(50% + 20px);
  transform: translate(-50%, -50%) rotate(6deg);
  z-index: 2;
  opacity: 0.5;
}

.hero-card-bg2 {
  width: 240px;
  top: calc(50% + 36px);
  left: calc(50% + 36px);
  transform: translate(-50%, -50%) rotate(12deg);
  z-index: 1;
  opacity: 0.3;
}

.card-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.card-icon svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: white;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.card-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.card-value {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 4px;
}

.card-sub {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.5);
}

.card-metrics {
  display: flex;
  gap: 16px;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.card-metric {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.metric-val {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-accent);
}

.metric-label {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.45);
}

/* Animations */
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(40px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* =============================================
   About Section
   ============================================= */
#about {
  padding: var(--section-padding);
  background: var(--color-white);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-visual {
  position: relative;
}

.about-image-wrap {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-3) 100%);
}

.about-image-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.about-image-placeholder svg {
  width: 80px;
  height: 80px;
  opacity: 0.3;
  fill: none;
  stroke: white;
  stroke-width: 1;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.about-image-placeholder p {
  color: rgba(255,255,255,0.3);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.about-badge {
  position: absolute;
  bottom: -20px;
  right: -20px;
  background: var(--color-primary);
  color: white;
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  box-shadow: var(--shadow-lg);
  text-align: center;
}

.about-badge-num {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 4px;
}

.about-badge-label {
  font-size: 0.75rem;
  opacity: 0.85;
  white-space: nowrap;
}

.about-text {
  max-width: 520px;
}

.about-text p {
  color: var(--color-text-light);
  line-height: 2;
  margin-bottom: 20px;
  font-size: 1rem;
}

.about-values {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 32px;
}

.about-value-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px 20px;
  background: var(--color-gray-100);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--color-primary);
  transition: all var(--transition-base);
}

.about-value-item:hover {
  background: var(--color-gray-200);
  transform: translateX(4px);
}

.about-value-icon {
  width: 36px;
  height: 36px;
  background: var(--color-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.about-value-icon svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: white;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.about-value-body h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
}

.about-value-body p {
  font-size: 0.85rem;
  color: var(--color-text-light);
  line-height: 1.6;
  margin: 0;
}

/* =============================================
   Services Section
   ============================================= */
#services {
  padding: var(--section-padding);
  background: var(--color-dark);
  position: relative;
  overflow: hidden;
}

#services::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0,188,212,0.5), transparent);
}

#services::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 20% 50%, rgba(21,101,192,0.12) 0%, transparent 60%),
    radial-gradient(ellipse 40% 40% at 80% 50%, rgba(0,188,212,0.08) 0%, transparent 50%);
  pointer-events: none;
}

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

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.service-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-xl);
  padding: 48px 40px;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-base);
  cursor: default;
}

.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(21,101,192,0.1), rgba(0,188,212,0.05));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.service-card:hover {
  border-color: rgba(0,188,212,0.3);
  transform: translateY(-6px);
  box-shadow: 0 24px 60px rgba(0,0,0,0.4);
}

.service-card:hover::before {
  opacity: 1;
}

.service-number {
  position: absolute;
  top: 28px;
  right: 32px;
  font-family: var(--font-heading);
  font-size: 4rem;
  font-weight: 800;
  color: rgba(255,255,255,0.04);
  line-height: 1;
  user-select: none;
}

.service-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 28px;
  position: relative;
  z-index: 1;
}

.service-icon-1 {
  background: linear-gradient(135deg, rgba(21,101,192,0.3), rgba(21,101,192,0.1));
  border: 1px solid rgba(21,101,192,0.4);
}

.service-icon-2 {
  background: linear-gradient(135deg, rgba(0,188,212,0.3), rgba(0,188,212,0.1));
  border: 1px solid rgba(0,188,212,0.4);
}

.service-icon svg {
  width: 28px;
  height: 28px;
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.service-icon-1 svg { stroke: #64B5F6; }
.service-icon-2 svg { stroke: var(--color-accent); }

.service-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: rgba(0,188,212,0.1);
  border: 1px solid rgba(0,188,212,0.2);
  border-radius: 100px;
  padding: 4px 12px;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.service-card:nth-child(1) .service-tag {
  color: #64B5F6;
  background: rgba(21,101,192,0.1);
  border-color: rgba(21,101,192,0.2);
}

.service-card h3 {
  font-size: clamp(1.3rem, 2vw, 1.7rem);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
  line-height: 1.4;
}

.service-card > p {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.9;
  margin-bottom: 32px;
  position: relative;
  z-index: 1;
}

.service-features {
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  z-index: 1;
}

.service-feature {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.88rem;
  color: rgba(255,255,255,0.75);
}

.service-feature-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--color-accent);
}

.service-card:nth-child(1) .service-feature-dot {
  background: #64B5F6;
}

/* =============================================
   Strengths Section
   ============================================= */
#strengths {
  padding: var(--section-padding);
  background: var(--color-light);
}

.strengths-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);
  border: 1px solid var(--color-gray-200);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

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

.strength-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

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

.strength-icon {
  width: 72px;
  height: 72px;
  background: linear-gradient(135deg, var(--color-gray-100), var(--color-gray-200));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  transition: all var(--transition-base);
}

.strength-card:hover .strength-icon {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
}

.strength-icon svg {
  width: 32px;
  height: 32px;
  fill: none;
  stroke: var(--color-primary);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: stroke var(--transition-base);
}

.strength-card:hover .strength-icon svg {
  stroke: white;
}

.strength-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
  line-height: 1.4;
}

.strength-card p {
  font-size: 0.88rem;
  color: var(--color-text-light);
  line-height: 1.85;
}

/* =============================================
   Company Section (会社概要)
   ============================================= */
#company {
  padding: var(--section-padding);
  background: var(--color-white);
}

.company-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.company-table-wrap {
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-gray-200);
}

.company-table {
  width: 100%;
  border-collapse: collapse;
}

.company-table tr {
  border-bottom: 1px solid var(--color-gray-200);
}

.company-table tr:last-child {
  border-bottom: none;
}

.company-table th {
  width: 35%;
  padding: 18px 20px;
  background: var(--color-gray-100);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
  text-align: left;
  white-space: nowrap;
}

.company-table td {
  padding: 18px 20px;
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

.company-map {
  position: relative;
}

.map-placeholder {
  width: 100%;
  aspect-ratio: 4/3;
  background: var(--color-gray-100);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-gray-200);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--color-text-light);
  font-size: 0.85rem;
}

.map-placeholder svg {
  width: 48px;
  height: 48px;
  fill: none;
  stroke: var(--color-gray-400);
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.company-map-note {
  margin-top: 16px;
  padding: 16px 20px;
  background: var(--color-gray-100);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* =============================================
   Contact Section
   ============================================= */
#contact {
  padding: var(--section-padding);
  background: var(--color-dark);
  position: relative;
  overflow: hidden;
}

#contact::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0,188,212,0.4), transparent);
}

#contact::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 60% at 50% 0%, rgba(21,101,192,0.15) 0%, transparent 60%);
  pointer-events: none;
}

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

.contact-wrap {
  max-width: 720px;
  margin: 0 auto;
}

.contact-info-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}

.contact-info-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  text-align: center;
  transition: all var(--transition-base);
}

.contact-info-card:hover {
  border-color: rgba(0,188,212,0.3);
  background: rgba(255,255,255,0.08);
}

.contact-info-card svg {
  width: 28px;
  height: 28px;
  fill: none;
  stroke: var(--color-accent);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  margin: 0 auto 10px;
  display: block;
}

.contact-info-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 6px;
}

.contact-info-value {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.85);
  font-weight: 500;
}

/* CF7 Styles（コンタクトセクション・ダーク背景用）
   CF7出力構造: div.wpcf7 > form.wpcf7-form > p > label > input.wpcf7-form-control
   ============================================= */

/* フォーム外枠 */
#contact .wpcf7-form {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-xl);
  padding: 48px 40px;
}

/* CF7が生成する <p> タグのマージン調整 */
#contact .wpcf7-form p {
  margin-bottom: 20px;
  color: var(--color-white);
}

/* ラベルテキスト */
#contact .wpcf7-form label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: rgba(255,255,255,0.75);
  letter-spacing: 0.03em;
  margin-bottom: 6px;
  line-height: 1.6;
}

/* 全入力コントロール（.wpcf7-form-control はCF7がすべての入力に付与するクラス） */
#contact .wpcf7-form .wpcf7-form-control:not([type="submit"]):not([type="checkbox"]) {
  display: block;
  width: 100%;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-md);
  padding: 13px 16px;
  font-size: 0.92rem;
  color: var(--color-white) !important;
  font-family: var(--font-primary);
  transition: all var(--transition-fast);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
  margin-top: 6px;
}

/* プレースホルダー */
#contact .wpcf7-form .wpcf7-form-control::placeholder {
  color: rgba(255,255,255,0.3);
}

/* フォーカス時 */
#contact .wpcf7-form .wpcf7-form-control:focus {
  border-color: var(--color-accent);
  background: rgba(255,255,255,0.1);
  box-shadow: 0 0 0 3px rgba(0,188,212,0.15);
}

/* テキストエリア */
#contact .wpcf7-form textarea.wpcf7-form-control {
  resize: vertical;
  min-height: 150px;
}

/* 送信ボタン */
#contact .wpcf7-form input[type="submit"],
#contact .wpcf7-form .wpcf7-submit {
  width: 100%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: var(--color-white) !important;
  border: none;
  border-radius: var(--radius-md);
  padding: 16px 32px;
  font-size: 1rem;
  font-weight: 700;
  font-family: var(--font-primary);
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: all var(--transition-base);
  margin-top: 8px;
}

#contact .wpcf7-form input[type="submit"]:hover,
#contact .wpcf7-form .wpcf7-submit:hover {
  background: linear-gradient(135deg, var(--color-primary-light), #1E88E5);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(21, 101, 192, 0.5);
}

/* バリデーションエラー */
#contact .wpcf7-not-valid-tip {
  color: #F87171;
  font-size: 0.8rem;
  margin-top: 4px;
  display: block;
}

/* 送受信結果メッセージ */
#contact .wpcf7-response-output {
  margin-top: 20px;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  border: 1px solid;
  color: var(--color-white);
}

#contact .wpcf7-mail-sent-ok {
  background: rgba(0, 188, 100, 0.1);
  border-color: rgba(0, 188, 100, 0.3);
  color: #4ADE80;
}

#contact .wpcf7-mail-sent-ng,
#contact .wpcf7-spam-blocked {
  background: rgba(248, 113, 113, 0.1);
  border-color: rgba(248, 113, 113, 0.3);
  color: #F87171;
}

/* =============================================
   Footer
   ============================================= */
#site-footer {
  background: #060E1A;
  padding: 64px 0 0;
  color: rgba(255,255,255,0.6);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 60px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand {
  max-width: 320px;
}

.footer-logo {
  margin-bottom: 20px;
  display: inline-flex;
}

.footer-site-name {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: 0.05em;
  margin-bottom: 10px;
}

.footer-tagline {
  font-size: 0.88rem;
  line-height: 1.9;
  color: rgba(255,255,255,0.5);
}

.footer-col-title {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.9);
  margin-bottom: 20px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.5);
  transition: color var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-links a::before {
  content: '';
  width: 4px;
  height: 4px;
  background: var(--color-accent);
  border-radius: 50%;
  flex-shrink: 0;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.footer-links a:hover {
  color: rgba(255,255,255,0.9);
}

.footer-links a:hover::before {
  opacity: 1;
}

.footer-bottom {
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-copy {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.35);
}

.footer-legal {
  display: flex;
  gap: 24px;
}

.footer-legal a {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.35);
  transition: color var(--transition-fast);
}

.footer-legal a:hover {
  color: rgba(255,255,255,0.7);
}

/* =============================================
   Legal Pages (プライバシーポリシー・利用規約)
   ============================================= */
.legal-hero {
  position: relative;
  padding: 140px 0 72px;
  background: var(--color-dark);
  overflow: hidden;
  text-align: center;
}

.legal-hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 50% 100%, rgba(21,101,192,0.18) 0%, transparent 60%),
    linear-gradient(160deg, #0C1A2E 0%, #112240 100%);
}

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

.legal-hero .section-label {
  color: var(--color-accent);
  margin-bottom: 16px;
}

.legal-hero-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.legal-hero-sub {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.55);
}

.legal-content-wrap {
  padding: 72px 0 100px;
  background: var(--color-white);
}

.legal-content {
  max-width: 800px;
  margin: 0 auto;
}

.legal-intro {
  font-size: 0.98rem;
  color: var(--color-text-light);
  line-height: 1.95;
  margin-bottom: 48px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--color-gray-200);
}

.legal-section {
  margin-bottom: 44px;
}

.legal-section h2 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 14px;
  padding-left: 14px;
  border-left: 3px solid var(--color-primary);
  line-height: 1.5;
}

.legal-section p {
  font-size: 0.93rem;
  color: var(--color-text-light);
  line-height: 1.95;
  margin-bottom: 14px;
}

.legal-section ul {
  margin: 12px 0 14px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.legal-section ul li {
  font-size: 0.93rem;
  color: var(--color-text-light);
  line-height: 1.7;
  list-style: disc;
}

.legal-contact-box {
  background: var(--color-gray-100);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  margin-top: 16px;
}

.legal-contact-box dl {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 10px 16px;
}

.legal-contact-box dt {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-text);
}

.legal-contact-box dd {
  font-size: 0.85rem;
  color: var(--color-text-light);
}

.legal-contact-box dd a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.legal-date {
  font-size: 0.82rem;
  color: var(--color-gray-400);
  text-align: right;
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--color-gray-200);
}

.legal-back {
  max-width: 800px;
  margin: 48px auto 0;
}

@media (max-width: 768px) {
  .legal-hero {
    padding: 120px 0 56px;
  }

  .legal-contact-box dl {
    grid-template-columns: 1fr;
    gap: 4px 0;
  }

  .legal-contact-box dt {
    margin-top: 10px;
  }

  .legal-content-wrap {
    padding: 48px 0 72px;
  }
}

/* =============================================
   Page Top Button
   ============================================= */
.page-top-btn {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  background: var(--color-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  z-index: 900;
  opacity: 0;
  transform: translateY(16px);
  pointer-events: none;
}

.page-top-btn.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.page-top-btn:hover {
  background: var(--color-primary-light);
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(21,101,192,0.5);
}

.page-top-btn svg {
  width: 20px;
  height: 20px;
  stroke: white;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
}

/* =============================================
   Responsive Design
   ============================================= */
@media (max-width: 1024px) {
  :root {
    --container-padding: 0 32px;
    --section-padding: 80px 0;
  }

  .hero-inner {
    padding: 120px 32px 80px;
  }

  .hero-text {
    max-width: 100%;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .about-text {
    max-width: 100%;
  }

  .company-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

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

@media (max-width: 768px) {
  :root {
    --container-padding: 0 20px;
    --section-padding: 60px 0;
  }

  /* Nav */
  .nav-links,
  .nav-cta {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  /* Hero */
  .hero-inner {
    padding: 100px 20px 80px;
  }

  .hero-headline {
    font-size: 2rem;
  }

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

  .service-card {
    padding: 36px 28px;
  }

  /* Strengths */
  .strengths-grid {
    grid-template-columns: 1fr;
  }

  /* Contact */
  .contact-info-row {
    grid-template-columns: 1fr;
  }

  #contact .wpcf7-form {
    padding: 32px 24px;
  }

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

  /* Footer */
  .footer-top {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .section-header {
    margin-bottom: 44px;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    justify-content: center;
    max-width: 280px;
  }

  .page-top-btn {
    bottom: 20px;
    right: 20px;
  }
}