:root {
  --bg: #f6f7fb;
  --bg-alt: #ffffff;
  --card: #ffffff;
  --text: #0b0d12;
  --muted: #5b6475;
  --accent: #22d3ee;
  --accent-2: #3b6bff;
  --stroke: rgba(15, 23, 42, 0.12);
  --shadow: 0 18px 40px rgba(15, 23, 42, 0.12);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
}

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

body {
  font-family: 'Noto Sans JP', sans-serif;
  background: radial-gradient(circle at top left, #eef2ff 0%, #f7f8fc 48%, #ffffff 100%);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
}

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

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

.bg-noise {
  position: fixed;
  inset: 0;
  background-image: url('data:image/svg+xml,%3Csvg xmlns="http://www.w3.org/2000/svg" width="160" height="160" viewBox="0 0 160 160"%3E%3Cfilter id="n" x="0" y="0" width="1" height="1"%3E%3CfeTurbulence type="fractalNoise" baseFrequency="0.8" numOctaves="2" stitchTiles="stitch"/%3E%3C/filter%3E%3Crect width="160" height="160" filter="url(%23n)" opacity="0.04"/%3E%3C/svg%3E');
  mix-blend-mode: multiply;
  pointer-events: none;
  z-index: 0;
}

.container {
  width: min(1120px, 92%);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--stroke);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: 'Space Grotesk', sans-serif;
  letter-spacing: 0.08em;
}

.logo-mark {
  width: 18px;
  height: 18px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 18px rgba(124, 245, 195, 0.6);
}

.logo-text {
  font-weight: 600;
}

.nav {
  display: flex;
  gap: 24px;
  align-items: center;
}

.nav a {
  font-size: 0.95rem;
  color: var(--muted);
  transition: color 0.3s ease;
}

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

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--stroke);
  background: transparent;
  color: var(--text);
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: 999px;
  border: none;
  background: linear-gradient(135deg, #3b6bff, #1d3dbb);
  color: #ffffff;
  font-weight: 700;
  text-shadow: none;
  box-shadow: var(--shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 24px 70px rgba(124, 155, 255, 0.35);
}

.btn.ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid transparent;
  box-shadow: none;
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.85rem;
}

.nav .btn.btn-sm {
  color: #061018;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.35);
}

.hero {
  position: relative;
  padding: 110px 0 120px;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 40px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-copy h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2.6rem, 4.4vw, 4rem);
  line-height: 1.2;
  margin: 16px 0 20px;
}

.hero-copy .accent {
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  color: transparent;
}

.eyebrow {
  font-size: 0.82rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
}

.lead {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 520px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin: 28px 0;
  flex-wrap: wrap;
}

.hero-metrics {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
}

.metric {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.8rem;
}

.metric-label {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
}

.hero-visual {
  position: relative;
  min-height: 360px;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(0px);
  opacity: 0.8;
}

.orb-1 {
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(124, 245, 195, 0.8), rgba(124, 245, 195, 0.05));
  top: 10%;
  left: 5%;
  animation: float 8s ease-in-out infinite;
}

.orb-2 {
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, rgba(124, 155, 255, 0.8), rgba(124, 155, 255, 0.05));
  right: 10%;
  bottom: 15%;
  animation: float 10s ease-in-out infinite reverse;
}

.orb-3 {
  width: 120px;
  height: 120px;
  background: radial-gradient(circle, rgba(255, 211, 120, 0.8), rgba(255, 211, 120, 0.05));
  right: 35%;
  top: 0;
  animation: float 7s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
}

.glass-card {
  position: absolute;
  inset: 20% 10% 10% 20%;
  padding: 24px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--stroke);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
  display: grid;
  gap: 12px;
}

.glass-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.95rem;
}

.glass-row.small {
  font-size: 0.85rem;
  color: var(--muted);
}

.dot.live {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px rgba(124, 245, 195, 0.8);
}

.glass-chart {
  height: 120px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(124, 245, 195, 0.3), rgba(124, 155, 255, 0.2));
  position: relative;
  overflow: hidden;
}

.glass-chart::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transform: translateX(-100%);
  animation: shine 3.5s ease-in-out infinite;
}

@keyframes shine {
  0% { transform: translateX(-100%); }
  60% { transform: translateX(100%); }
  100% { transform: translateX(100%); }
}

.scroll-hint {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--muted);
  opacity: 0.7;
}

.section {
  padding: 100px 0;
  position: relative;
  z-index: 1;
}

.section.alt {
  background: linear-gradient(160deg, rgba(240, 244, 255, 0.85), rgba(255, 255, 255, 0.92));
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.section-head h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2rem, 3vw, 2.6rem);
}

.section-head p {
  color: var(--muted);
  max-width: 460px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.card, .case-card {
  background: var(--card);
  border: 1px solid var(--stroke);
  padding: 28px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
}

.card h3, .case-card h3 {
  font-family: 'Space Grotesk', sans-serif;
  margin-bottom: 12px;
}

.tag-list {
  list-style: none;
  margin-top: 16px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.tag-list li {
  font-size: 0.8rem;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--stroke);
  color: var(--muted);
}

.tag-list span {
  font-size: 0.8rem;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--stroke);
  color: var(--muted);
  display: inline-flex;
}

.timeline {
  display: grid;
  gap: 24px;
}

.step {
  background: #ffffff;
  border: 1px solid var(--stroke);
  border-radius: var(--radius-md);
  padding: 28px;
  position: relative;
  box-shadow: var(--shadow);
}

.step-index {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.95rem;
  color: var(--accent);
}

.case-meta {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 0.85rem;
  margin-bottom: 12px;
}

.center {
  text-align: center;
  margin-top: 24px;
}

.contact {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
}

.contact-info {
  margin-top: 20px;
  color: var(--muted);
}

.contact-form {
  background: var(--card);
  border: 1px solid var(--stroke);
  border-radius: var(--radius-md);
  padding: 28px;
  display: grid;
  gap: 16px;
}

.contact-form label {
  display: grid;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--muted);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--stroke);
  background: #ffffff;
  color: var(--text);
}

.contact-form select {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--stroke);
  background: #ffffff;
  color: var(--text);
}

.form-actions {
  display: grid;
  gap: 10px;
}

.form-note {
  font-size: 0.8rem;
  color: var(--muted);
}

.site-footer {
  border-top: 1px solid var(--stroke);
  padding: 32px 0;
  background: #ffffff;
}

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

.footer-links {
  display: flex;
  gap: 16px;
}

.footer-meta {
  color: var(--muted);
  font-size: 0.85rem;
}

.page-hero {
  padding-top: 120px;
}

.blog-toolbar {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.search {
  flex: 1;
  min-width: 220px;
  padding: 12px 16px;
  border-radius: 999px;
  border: 1px solid var(--stroke);
  background: rgba(10, 13, 20, 0.8);
  color: var(--text);
}

.tag-filter {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.tag-filter button {
  background: transparent;
  border: 1px solid var(--stroke);
  color: var(--muted);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 0.8rem;
  cursor: pointer;
}

.tag-filter button.active {
  border-color: var(--accent);
  color: var(--text);
}

.blog-card {
  background: var(--card);
  border-radius: var(--radius-md);
  padding: 24px;
  border: 1px solid var(--stroke);
  display: grid;
  gap: 10px;
  transition: transform 0.3s ease, border 0.3s ease;
}

.blog-card:hover {
  transform: translateY(-4px);
  border-color: rgba(124, 245, 195, 0.6);
}

.blog-thumb {
  width: 100%;
  height: 160px;
  border-radius: 14px;
  background: none;
  background-size: cover;
  background-position: center;
  border: none;
}

.blog-card .meta {
  font-size: 0.8rem;
  color: var(--muted);
}

.blog-card .tag-list {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.blog-card .tag-list span {
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--stroke);
  color: var(--muted);
}

.page-post,
.page-blog {
  background: #ffffff;
}

.page-post .section,
.page-blog .section {
  background: #ffffff;
}

.post {
  max-width: 1100px;
}

.post-header h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2rem, 3vw, 2.8rem);
  margin: 16px 0 10px;
}

.post-hero {
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-md);
  background: none;
  background-size: cover;
  background-position: center;
  border: none;
  margin-top: 10px;
}

.post-content {
  display: grid;
  gap: 20px;
  margin-top: 24px;
  color: var(--muted);
  line-height: 2;
}

.post-content h2 {
  color: var(--text);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.5rem;
}

.back-link {
  color: var(--muted);
  font-size: 0.9rem;
}


.reveal {
  opacity: 0;
  transform: translateY(20px);
}

@media (max-width: 900px) {
  .nav {
    position: fixed;
    top: 70px;
    right: 20px;
    background: rgba(10, 13, 20, 0.95);
    border: 1px solid var(--stroke);
    border-radius: var(--radius-md);
    padding: 20px;
    display: none;
    flex-direction: column;
    gap: 16px;
  }

  .nav.open {
    display: flex;
  }

  .nav-toggle {
    display: inline-flex;
  }
}

@media (max-width: 640px) {
  .hero {
    padding: 90px 0;
  }

  .hero-metrics {
    flex-direction: column;
  }

  .glass-card {
    inset: 18% 5% 5% 10%;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}