:root {
  --bg: #0f1115;
  --surface: #171a21;
  --text: #eef0f4;
  --muted: #9aa2b1;
  --accent: #6d8dff;
  --accent-2: #8a6dff;
  --radius: 14px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  word-break: keep-all;
  overflow-wrap: break-word;
}

h1, h2, h3 {
  word-break: keep-all;
  overflow-wrap: break-word;
}

.hero {
  padding: 96px 24px 80px;
  text-align: center;
  background:
    radial-gradient(circle at 20% 20%, rgba(109,141,255,0.25), transparent 45%),
    radial-gradient(circle at 80% 30%, rgba(138,109,255,0.22), transparent 45%),
    var(--bg);
}

.hero-inner { max-width: 720px; margin: 0 auto; }

.eyebrow {
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-size: 12px;
  color: var(--accent);
  margin-bottom: 12px;
}

.hero h1 {
  font-size: clamp(36px, 6vw, 56px);
  margin: 0 0 16px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.name-en {
  font-size: 15px;
  letter-spacing: 0.15em;
  color: var(--muted);
  margin: -8px 0 24px;
}

.tagline {
  color: var(--muted);
  font-size: clamp(16px, 2.5vw, 19px);
  margin-bottom: 32px;
}

.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(109,141,255,0.35);
}

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 64px 0;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.section h2 {
  font-size: clamp(24px, 3vw, 30px);
  margin-bottom: 24px;
  position: relative;
  padding-left: 16px;
}

.section h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 4px;
  border-radius: 4px;
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
}

.lead {
  color: var(--muted);
  max-width: 680px;
  font-size: 16px;
}

.subsection {
  font-size: 15px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 32px 0 16px;
}

.subsection:first-of-type { margin-top: 0; }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.card {
  background: var(--surface);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 24px;
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(109,141,255,0.4);
}

.card h3 {
  margin-top: 0;
  font-size: 18px;
  color: var(--text);
}

.card-label {
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  margin: 16px 0 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.card-label:first-of-type { margin-top: 12px; }

.card p:not(.card-label) {
  margin: 0 0 4px;
  color: var(--muted);
  font-size: 14px;
}

.timeline {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.timeline-item {
  background: var(--surface);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 20px 24px;
}

.timeline-date {
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0 0 8px;
}

.timeline-item h3 {
  margin: 0 0 8px;
  font-size: 17px;
  color: var(--text);
}

.timeline-item p:not(.timeline-date) {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
  margin: 0;
}

.tags li {
  background: var(--surface);
  border: 1px solid rgba(255,255,255,0.08);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 14px;
  color: var(--text);
}

footer {
  text-align: center;
  padding: 32px 24px 48px;
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 480px) {
  .hero { padding: 64px 16px 56px; }
  .section { padding: 48px 0; }
}