:root {
  --t-text: #1A2233;
  --t-muted: #5A6472;
  --t-bg: #FFFFFF;
  --t-soft: #F6F8FA;
  --t-border: #E2E8F0;
  --t-r: 14px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--t-text);
  background: var(--t-bg);
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { line-height: 1.4; margin: 0 0 .5em; }
h2 { font-size: 22px; }
p { margin: 0 0 1em; }
ul { margin: 0; padding: 0; list-style: none; }
a { color: inherit; }
.wrap { max-width: 720px; margin-inline: auto; padding-inline: 20px; }
section { padding: 44px 0; }

.demo-banner {
  background: var(--t-soft);
  color: var(--t-muted);
  font-size: 12px;
  text-align: center;
  padding: 6px 12px;
}

.t-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(4px);
  border-bottom: 1px solid var(--t-border);
}
.t-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-block: 10px;
}
.t-name {
  font-weight: 700;
  font-size: 15px;
  color: var(--site-primary);
}
.t-cta, .t-btn-main, .t-btn-sub, .t-join-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-weight: 700;
}
.t-cta {
  min-height: 40px;
  padding: 8px 20px;
  background: var(--site-primary);
  color: #fff;
  border-radius: 999px;
  font-size: 14px;
}
.t-cta:hover, .t-btn-main:hover { background: var(--site-primary-dark); }

.t-hero {
  position: relative;
  overflow: hidden;
  background: var(--site-accent-soft);
  padding: 64px 0 56px;
  text-align: center;
}
.t-hero::before, .t-hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  background: #fff;
  opacity: .45;
  pointer-events: none;
}
.t-hero::before { width: 300px; height: 300px; top: -120px; right: -80px; }
.t-hero::after { width: 220px; height: 220px; bottom: -110px; left: -60px; }
.t-hero .wrap { position: relative; }
.t-univ {
  font-size: 13px;
  font-weight: 700;
  color: var(--site-primary);
  letter-spacing: .08em;
  margin-bottom: 8px;
}
.t-hero h1 {
  font-size: 32px;
  color: var(--site-primary);
  margin-bottom: 8px;
}
.t-tagline {
  font-size: 16px;
  font-weight: 500;
  margin-bottom: 24px;
}
.t-btns {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}
.t-btn-main, .t-btn-sub {
  min-height: 48px;
  padding: 10px 24px;
  border-radius: 999px;
  font-size: 15px;
}
.t-btn-main { background: var(--site-primary); color: #fff; }
.t-btn-sub {
  background: #fff;
  color: var(--site-primary);
  border: 1.5px solid var(--site-primary);
}

.t-h2 { text-align: center; margin-bottom: 24px; }
.t-h2 small {
  display: block;
  font-size: 12px;
  font-weight: 700;
  color: var(--site-accent);
  letter-spacing: .15em;
  margin-bottom: 2px;
}

.t-cards { display: grid; gap: 12px; }
@media (min-width: 640px) { .t-cards { grid-template-columns: repeat(3, 1fr); } }
.t-card {
  background: #fff;
  border: 1px solid var(--t-border);
  border-radius: var(--t-r);
  padding: 20px;
  box-shadow: 0 1px 2px rgba(16,24,40,.05);
}
.t-ico {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--site-accent-soft);
  font-size: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 10px;
}
.t-card h3 {
  font-size: 16px;
  margin-bottom: 4px;
  color: var(--site-primary);
}
.t-card p {
  font-size: 14px;
  color: var(--t-muted);
  margin: 0;
}

.t-events { background: var(--t-soft); }
.t-event {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: #fff;
  border: 1px solid var(--t-border);
  border-radius: var(--t-r);
  padding: 14px 16px;
  margin-bottom: 10px;
}
.t-date {
  flex: none;
  width: 56px;
  text-align: center;
  background: var(--site-primary);
  color: #fff;
  border-radius: 10px;
  padding: 6px 4px;
  line-height: 1.3;
}
.t-date .m, .t-date .w { display: block; font-size: 10px; opacity: .85; }
.t-date .d { display: block; font-size: 19px; font-weight: 700; }
.t-event h3 { font-size: 15px; margin: 0 0 2px; }
.t-place, .t-note { font-size: 13px; color: var(--t-muted); margin: 0; }

.t-nums {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  text-align: center;
}
.t-num {
  background: var(--site-accent-soft);
  border-radius: var(--t-r);
  padding: 18px 8px;
}
.t-num .v {
  font-size: 24px;
  font-weight: 700;
  color: var(--site-primary);
  line-height: 1.3;
}
.t-num .l { font-size: 12px; color: var(--t-muted); }

.t-voice {
  background: #fff;
  border: 1px solid var(--t-border);
  border-radius: var(--t-r);
  padding: 16px 18px;
  margin-bottom: 10px;
  font-size: 14px;
}
.t-voice p { margin: 0; }
.t-voice .who {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  color: var(--t-muted);
}

.t-faq details {
  background: #fff;
  border: 1px solid var(--t-border);
  border-radius: var(--t-r);
  margin-bottom: 8px;
}
.t-faq summary {
  list-style: none;
  cursor: pointer;
  position: relative;
  font-weight: 700;
  font-size: 15px;
  padding: 14px 44px 14px 18px;
}
.t-faq summary::-webkit-details-marker { display: none; }
.t-faq summary::after {
  content: "＋";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--site-primary);
  font-weight: 700;
}
.t-faq details[open] summary::after { content: "−"; }
.t-faq .a {
  padding: 0 18px 14px;
  font-size: 14px;
  color: var(--t-muted);
  margin: 0;
}

.t-join {
  background: var(--site-primary);
  color: #fff;
  text-align: center;
}
.t-join h2 { color: #fff; }
.t-join .t-h2 small { color: var(--site-accent); }
.t-join-btns {
  display: grid;
  gap: 10px;
  max-width: 400px;
  margin: 20px auto 0;
}
.t-join-btn {
  min-height: 54px;
  border-radius: 999px;
  background: #fff;
  color: var(--site-primary);
  font-size: 15px;
}
.t-join-btn:hover { background: var(--site-accent-soft); }
.t-join .sub {
  font-size: 13px;
  opacity: .85;
  margin-top: 16px;
}

.t-footer {
  padding: 28px 0 36px;
  text-align: center;
  font-size: 12px;
  color: var(--t-muted);
}
.t-footer a { color: var(--t-muted); }