:root {
  color-scheme: light;
  --blue: #0d6ea8;
  --blue-deep: #084e7b;
  --blue-bright: #2f9bd3;
  --ink: #10283a;
  --muted: #617787;
  --line: rgba(28, 104, 148, 0.14);
  --surface: rgba(255, 255, 255, 0.72);
  font-family: Inter, "Noto Sans JP", "Yu Gothic UI", "Yu Gothic", sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: #f9fcfe;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

.site-header {
  position: absolute;
  z-index: 10;
  top: 0;
  left: 50%;
  display: flex;
  width: min(1180px, calc(100% - 40px));
  min-height: 84px;
  align-items: center;
  justify-content: space-between;
  transform: translateX(-50%);
}

.brand img {
  display: block;
  width: 112px;
  height: auto;
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--blue-deep);
  background: rgba(255, 255, 255, 0.62);
  box-shadow: 0 8px 32px rgba(19, 83, 121, 0.06);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  backdrop-filter: blur(14px);
}

.status span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #2fb981;
  box-shadow: 0 0 0 4px rgba(47, 185, 129, 0.12);
}

.hero {
  position: relative;
  display: grid;
  min-height: 100svh;
  place-items: center;
  overflow: hidden;
  padding: 130px 24px 88px;
  isolation: isolate;
  background:
    radial-gradient(circle at 50% 45%, rgba(255, 255, 255, 0.92), rgba(248, 252, 255, 0.7) 42%, transparent 72%),
    linear-gradient(rgba(53, 137, 184, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(53, 137, 184, 0.035) 1px, transparent 1px),
    #f7fbfe;
  background-size: auto, 32px 32px, 32px 32px, auto;
}

.hero::after {
  position: absolute;
  z-index: -1;
  inset: 0;
  background: linear-gradient(to bottom, transparent 72%, #f9fcfe 100%);
  content: "";
}

.glow {
  position: absolute;
  z-index: -2;
  border-radius: 50%;
  filter: blur(4px);
}

.glow-one {
  top: 8%;
  left: 3%;
  width: 440px;
  height: 440px;
  background: rgba(53, 166, 222, 0.10);
}

.glow-two {
  right: 2%;
  bottom: 1%;
  width: 520px;
  height: 520px;
  background: rgba(74, 120, 222, 0.07);
}

.hero-content {
  width: min(760px, 100%);
  text-align: center;
}

.eyebrow {
  margin: 0 0 22px;
  color: var(--blue);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.24em;
}

.hero-logo {
  display: block;
  width: min(360px, 76vw);
  height: auto;
  margin: 0 auto 24px;
}

h1 {
  margin: 0;
  color: #173d58;
  font-size: clamp(22px, 3.2vw, 32px);
  line-height: 1.5;
  letter-spacing: 0.06em;
}

.lead {
  margin: 22px auto 0;
  color: var(--muted);
  font-size: clamp(14px, 1.8vw, 17px);
  line-height: 2;
}

.launch-card {
  display: flex;
  width: min(500px, 100%);
  margin: 38px auto 0;
  align-items: center;
  gap: 16px;
  padding: 19px 22px;
  border: 1px solid rgba(33, 118, 166, 0.16);
  border-radius: 18px;
  text-align: left;
  background: rgba(255, 255, 255, 0.76);
  box-shadow: 0 24px 70px rgba(16, 83, 122, 0.10);
  backdrop-filter: blur(18px);
}

.launch-card strong,
.launch-card small { display: block; }

.launch-card strong {
  color: var(--blue-deep);
  font-size: 15px;
}

.launch-card small {
  margin-top: 5px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
}

.pulse {
  flex: 0 0 auto;
  width: 12px;
  height: 12px;
  border: 3px solid rgba(41, 158, 211, 0.22);
  border-radius: 50%;
  background: var(--blue-bright);
  box-shadow: 0 0 0 7px rgba(41, 158, 211, 0.08);
}

.scroll-link {
  display: inline-flex;
  margin-top: 34px;
  align-items: center;
  gap: 5px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}

.scroll-link svg {
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.section {
  width: min(1080px, calc(100% - 40px));
  margin: 0 auto;
  padding: 110px 0;
}

.section-heading {
  max-width: 720px;
  margin: 0 auto 52px;
  text-align: center;
}

.section-heading h2 {
  margin: 0;
  color: #173d58;
  font-size: clamp(26px, 4vw, 40px);
  line-height: 1.45;
  letter-spacing: 0.02em;
}

.section-heading > p:last-child {
  margin: 22px auto 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 2;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.feature-grid article {
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.84);
  box-shadow: 0 18px 52px rgba(25, 83, 117, 0.06);
}

.feature-number {
  color: rgba(13, 110, 168, 0.45);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.feature-grid h3 {
  margin: 24px 0 12px;
  color: #173d58;
  font-size: 17px;
}

.feature-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.85;
}

.faq {
  border-top: 1px solid var(--line);
}

.section-heading.compact { margin-bottom: 36px; }

.faq-list {
  max-width: 780px;
  margin: 0 auto;
}

.faq-list details {
  border-bottom: 1px solid var(--line);
}

.faq-list summary {
  position: relative;
  padding: 23px 46px 23px 4px;
  color: #24485f;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
}

.faq-list summary::-webkit-details-marker { display: none; }

.faq-list summary::after {
  position: absolute;
  top: 50%;
  right: 8px;
  color: var(--blue);
  font-size: 24px;
  font-weight: 300;
  transform: translateY(-50%);
  content: "+";
}

.faq-list details[open] summary::after { content: "−"; }

.faq-list details p {
  margin: -3px 0 22px;
  padding: 0 46px 0 4px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.9;
}

footer {
  padding: 54px 20px 46px;
  border-top: 1px solid var(--line);
  text-align: center;
  background: #f5fafe;
}

footer img {
  width: 96px;
  height: auto;
}

footer p {
  margin: 13px 0 28px;
  color: var(--muted);
  font-size: 12px;
}

footer small {
  color: #8295a3;
  font-size: 11px;
  letter-spacing: 0.08em;
}

@media (max-width: 720px) {
  .site-header { min-height: 72px; }
  .brand img { width: 92px; }
  .status { padding: 8px 11px; font-size: 10px; }
  .hero { min-height: 780px; padding-top: 118px; }
  .lead br { display: none; }
  .launch-card { padding: 17px; }
  .section { padding: 80px 0; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-grid article { padding: 25px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}