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

html { scroll-behavior: smooth; }

body {
  font-family: 'Noto Sans JP', 'Hiragino Sans', 'Yu Gothic', sans-serif;
  background: #F4F6F8;
  color: #0D1B2A;
  font-size: 16px;
  line-height: 1.7;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

.site-header {
  background: #0D1B2A;
  border-bottom: 2px solid #00C8FF;
  padding: 0 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
}

.brand-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: #FFFFFF;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.brand-name span {
  color: #00C8FF;
}

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

.site-nav a {
  color: #C8D8E8;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  padding: 4px 0;
  border-bottom: 2px solid transparent;
}

.site-nav a:hover {
  color: #00C8FF;
  border-bottom-color: #00C8FF;
}

.nav-cta {
  background: #00C8FF;
  color: #0D1B2A !important;
  padding: 8px 20px !important;
  border-radius: 4px;
  border-bottom: none !important;
  font-weight: 700 !important;
}

.nav-cta:hover {
  background: #00A8D8 !important;
  color: #0D1B2A !important;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: #FFFFFF;
  border-radius: 2px;
}

.hero {
  background: #0D1B2A;
  color: #FFFFFF;
  padding: 96px 0 80px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-badge {
  display: inline-block;
  background: rgba(0,200,255,0.15);
  color: #00C8FF;
  border: 1px solid #00C8FF;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 4px 12px;
  margin-bottom: 20px;
  text-transform: uppercase;
}

.hero h1 {
  font-size: clamp(1.9rem, 3.5vw, 2.8rem);
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 20px;
  color: #FFFFFF;
}

.hero h1 em {
  font-style: normal;
  color: #00C8FF;
}

.hero p {
  font-size: 1rem;
  color: #A0B8CC;
  line-height: 1.8;
  margin-bottom: 32px;
  max-width: 480px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-block;
  background: #00C8FF;
  color: #0D1B2A;
  font-weight: 700;
  font-size: 0.9rem;
  padding: 12px 28px;
  border-radius: 4px;
  letter-spacing: 0.02em;
}

.btn-primary:hover { background: #00A8D8; }

.btn-outline {
  display: inline-block;
  background: transparent;
  color: #FFFFFF;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 12px 28px;
  border-radius: 4px;
  border: 2px solid rgba(255,255,255,0.3);
  letter-spacing: 0.02em;
}

.btn-outline:hover { border-color: #00C8FF; color: #00C8FF; }

.hero-image-wrap {
  position: relative;
}

.hero-image-wrap .img-placeholder {
  width: 100%;
  aspect-ratio: 4/3;
  background: #1A2D42;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #4A6A88;
  font-size: 0.85rem;
}

.section {
  padding: 80px 0;
}

.section-alt {
  background: #FFFFFF;
}

.section-dark {
  background: #0D1B2A;
  color: #FFFFFF;
}

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

.section-label {
  display: inline-block;
  color: #00C8FF;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 800;
  color: #0D1B2A;
  line-height: 1.3;
}

.section-dark .section-title { color: #FFFFFF; }

.section-sub {
  font-size: 1rem;
  color: #5A7A98;
  margin-top: 12px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.section-dark .section-sub { color: #8AA8C0; }

.stats-strip {
  background: #00C8FF;
  padding: 40px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-item h3 {
  font-size: 2rem;
  font-weight: 800;
  color: #0D1B2A;
}

.stat-item p {
  font-size: 0.85rem;
  color: #0D1B2A;
  font-weight: 600;
  margin-top: 4px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-card {
  background: #FFFFFF;
  border: 1px solid #E2EAF0;
  border-radius: 8px;
  padding: 32px 28px;
}

.section-dark .feature-card {
  background: #1A2D42;
  border-color: rgba(0,200,255,0.15);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: rgba(0,200,255,0.1);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.feature-icon svg { width: 24px; height: 24px; }

.feature-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: #0D1B2A;
  margin-bottom: 10px;
}

.section-dark .feature-card h3 { color: #FFFFFF; }

.feature-card p {
  font-size: 0.88rem;
  color: #5A7A98;
  line-height: 1.7;
}

.section-dark .feature-card p { color: #8AA8C0; }

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.review-card {
  background: #FFFFFF;
  border: 1px solid #E2EAF0;
  border-radius: 8px;
  overflow: hidden;
}

.review-thumb {
  width: 100%;
  aspect-ratio: 16/9;
  background: #D0DCE8;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #8AAABB;
  font-size: 0.8rem;
}

.review-body {
  padding: 20px;
}

.review-tag {
  display: inline-block;
  background: rgba(0,200,255,0.12);
  color: #00A0CC;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 3px;
  margin-bottom: 10px;
}

.review-card h3 {
  font-size: 0.98rem;
  font-weight: 700;
  color: #0D1B2A;
  margin-bottom: 8px;
  line-height: 1.45;
}

.review-card p {
  font-size: 0.84rem;
  color: #5A7A98;
  line-height: 1.65;
}

.review-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 14px;
  font-size: 0.78rem;
  color: #8AA8C0;
}

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

.category-card {
  background: #1A2D42;
  border-radius: 8px;
  padding: 28px 20px;
  text-align: center;
  border: 1px solid rgba(0,200,255,0.12);
}

.category-icon {
  width: 52px;
  height: 52px;
  background: rgba(0,200,255,0.12);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.category-icon svg { width: 26px; height: 26px; }

.category-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 6px;
}

.category-card p {
  font-size: 0.8rem;
  color: #8AA8C0;
}

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

.product-card {
  background: #FFFFFF;
  border: 1px solid #E2EAF0;
  border-radius: 8px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.product-img {
  width: 100%;
  aspect-ratio: 4/3;
  background: #F0F4F8;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #8AAABB;
  font-size: 0.8rem;
}

.product-body {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-brand {
  font-size: 0.72rem;
  font-weight: 700;
  color: #00A0CC;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.product-card h3 {
  font-size: 0.98rem;
  font-weight: 700;
  color: #0D1B2A;
  margin-bottom: 8px;
  line-height: 1.4;
}

.product-rating {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.product-price {
  font-size: 1.3rem;
  font-weight: 800;
  color: #00C8FF;
  margin-bottom: 12px;
}

.stars {
  color: #F5A623;
  font-size: 0.85rem;
  letter-spacing: 1px;
}

.rating-val {
  font-size: 0.8rem;
  font-weight: 700;
  color: #0D1B2A;
}

.product-desc {
  font-size: 0.84rem;
  color: #5A7A98;
  line-height: 1.65;
  flex: 1;
  margin-bottom: 18px;
}

.product-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.btn-call {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #0D1B2A;
  color: #FFFFFF;
  font-weight: 600;
  font-size: 0.82rem;
  padding: 9px 16px;
  border-radius: 4px;
  border: none;
  cursor: pointer;
}

.btn-call:hover { background: #1A2D42; }

.btn-call svg { width: 14px; height: 14px; }

.btn-email {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  color: #00A0CC;
  font-weight: 600;
  font-size: 0.82rem;
  padding: 9px 16px;
  border-radius: 4px;
  border: 1px solid #00C8FF;
  cursor: pointer;
}

.btn-email:hover { background: rgba(0,200,255,0.08); }
.btn-email svg { width: 14px; height: 14px; }

.why-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.why-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.why-list li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.why-num {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  background: #00C8FF;
  color: #0D1B2A;
  font-weight: 800;
  font-size: 0.85rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.why-text strong {
  display: block;
  font-size: 0.96rem;
  font-weight: 700;
  color: #0D1B2A;
  margin-bottom: 4px;
}

.why-text p { font-size: 0.85rem; color: #5A7A98; }

.why-image {
  width: 100%;
  aspect-ratio: 4/3;
  background: #D0DCE8;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #8AAABB;
  font-size: 0.85rem;
}

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

.testimonial-card {
  background: #1A2D42;
  border: 1px solid rgba(0,200,255,0.15);
  border-radius: 8px;
  padding: 28px;
}

.testimonial-card p {
  font-size: 0.88rem;
  color: #C0D4E4;
  line-height: 1.75;
  margin-bottom: 20px;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #2A3F56;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #8AA8C0;
  font-size: 0.7rem;
  flex-shrink: 0;
}

.author-info strong { font-size: 0.88rem; color: #FFFFFF; display: block; }
.author-info span { font-size: 0.78rem; color: #8AA8C0; }

.newsletter {
  background: #00C8FF;
  padding: 72px 0;
}

.newsletter-inner {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.newsletter h2 {
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 800;
  color: #0D1B2A;
  margin-bottom: 12px;
}

.newsletter p {
  font-size: 0.95rem;
  color: #0D3050;
  margin-bottom: 28px;
}

.newsletter-form {
  display: flex;
  gap: 10px;
  max-width: 480px;
  margin: 0 auto;
}

.newsletter-form input {
  flex: 1;
  padding: 12px 16px;
  border: none;
  border-radius: 4px;
  font-size: 0.9rem;
  font-family: inherit;
  color: #0D1B2A;
  outline: none;
  background: #FFFFFF;
}

.newsletter-form button {
  padding: 12px 24px;
  background: #0D1B2A;
  color: #FFFFFF;
  font-size: 0.9rem;
  font-weight: 700;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-family: inherit;
}

.newsletter-form button:hover { background: #1A2D42; }

.contacts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.contact-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  background: rgba(0,200,255,0.1);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-icon svg { width: 22px; height: 22px; }

.contact-item strong {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  color: #00A0CC;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.contact-item a,
.contact-item p {
  font-size: 0.95rem;
  color: #0D1B2A;
}

.contact-item a:hover { color: #00A0CC; }

.contact-map {
  width: 100%;
  aspect-ratio: 4/3;
  background: #D0DCE8;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #8AAABB;
  font-size: 0.9rem;
  border: 1px solid #E2EAF0;
}

.site-footer {
  background: #0D1B2A;
  color: #8AA8C0;
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}

.footer-brand .brand { margin-bottom: 16px; }

.footer-brand p {
  font-size: 0.85rem;
  color: #6A8AAA;
  line-height: 1.7;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 0.78rem;
  font-weight: 700;
  color: #FFFFFF;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }

.footer-col ul li a {
  font-size: 0.85rem;
  color: #6A8AAA;
}

.footer-col ul li a:hover { color: #00C8FF; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-bottom p { font-size: 0.8rem; color: #4A6A88; }

.footer-bottom-links {
  display: flex;
  gap: 20px;
}

.footer-bottom-links a {
  font-size: 0.8rem;
  color: #4A6A88;
}

.footer-bottom-links a:hover { color: #00C8FF; }

.mobile-nav {
  display: none;
  flex-direction: column;
  background: #0D1B2A;
  border-top: 1px solid rgba(0,200,255,0.2);
  padding: 16px 24px 24px;
  gap: 12px;
}

.mobile-nav a {
  color: #C8D8E8;
  font-size: 0.95rem;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.mobile-nav a:hover { color: #00C8FF; }
.mobile-nav.open { display: flex; }

.hero { text-align: center; }
.hero-grid { justify-items: center; }
.hero-content { max-width: 600px; margin: 0 auto; }

.features-grid { max-width: 1000px; margin: 0 auto; }

.reviews-grid { max-width: 1000px; margin: 0 auto; }

.products-grid { max-width: 1000px; margin: 0 auto; }

.testimonials-grid { max-width: 1000px; margin: 0 auto; }

.newsletter-inner { text-align: center; }

.stats-grid { text-align: center; max-width: 900px; margin: 0 auto; }

.section .section-header { text-align: center; margin-left: auto; margin-right: auto; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .categories-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .site-nav { display: none; }
  .hamburger { display: flex; }

  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero { padding: 64px 0 56px; }

  .features-grid { grid-template-columns: 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
  .products-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; gap: 36px; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .contacts-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }

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

  .newsletter-form { flex-direction: column; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .categories-grid { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  width: calc(100% - 48px);
  max-width: 960px;
  background: #0D1B2A;
  color: #FFFFFF;
  border: 1px solid rgba(0,200,255,0.25);
  border-radius: 12px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.35);
  padding: 18px 22px;
  display: flex;
  align-items: center;
  gap: 20px;
  z-index: 9999;
}
.cookie-banner.hidden { display: none; }
.cookie-banner-text { flex: 1; min-width: 0; }
.cookie-banner-text p { margin: 0; font-size: 14px; line-height: 1.55; color: #C8D8E8; }
.cookie-banner-text a { color: #00C8FF; text-decoration: underline; }
.cookie-banner-actions { display: flex; gap: 10px; flex-shrink: 0; }
.btn-cookie-accept,
.btn-cookie-decline {
  font: inherit;
  padding: 10px 18px;
  border-radius: 8px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all .2s ease;
  white-space: nowrap;
}
.btn-cookie-accept { background: #00C8FF; color: #0D1B2A; font-weight: 600; }
.btn-cookie-accept:hover { background: #33D6FF; }
.btn-cookie-decline { background: transparent; color: #FFFFFF; border-color: rgba(255,255,255,0.3); }
.btn-cookie-decline:hover { border-color: #00C8FF; color: #00C8FF; }
@media (max-width: 640px) {
  .cookie-banner { flex-direction: column; align-items: stretch; gap: 14px; bottom: 12px; width: calc(100% - 24px); padding: 16px; }
  .cookie-banner-actions { justify-content: stretch; }
  .btn-cookie-accept, .btn-cookie-decline { flex: 1; }
}