* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: 'Noto Serif JP','Hiragino Mincho ProN',serif;
  font-size: 15px; line-height: 1.9; color: #1a0a2e; background: #fff;
}
a { color: #3a1c71; text-decoration: none; }
a:hover { text-decoration: underline; }

.page-header {
  position: relative;
  background: linear-gradient(135deg, #3a1c71 0%, #1a6a80 60%, #0d9488 100%);
  padding: 60px 24px 140px;
  text-align: center;
  overflow: hidden;
}
.page-header h1 { color: #f0c060; font-size: 24px; letter-spacing: 0.2em; margin-bottom: 8px; }
.page-header p { color: rgba(240,192,96,0.75); font-size: 13px; letter-spacing: 0.15em; }

.waves-wrap { position: absolute; bottom: -2px; left: 0; width: 100%; line-height: 0; }
.waves { display: block; width: 100%; height: 90px; min-height: 60px; }
.parallax > use { animation: move-forever 25s cubic-bezier(.55,.5,.45,.5) infinite; }
.parallax > use:nth-child(1) { animation-delay: -2s; animation-duration: 7s; }
.parallax > use:nth-child(2) { animation-delay: -3s; animation-duration: 10s; }
.parallax > use:nth-child(3) { animation-delay: -4s; animation-duration: 13s; }
.parallax > use:nth-child(4) { animation-delay: -5s; animation-duration: 20s; }
@keyframes move-forever {
  0% { transform: translate3d(-90px,0,0); }
  100% { transform: translate3d(85px,0,0); }
}

.container { max-width: 760px; margin: 0 auto; padding: 56px 24px; }

.trademark-info {
  background: #f8f4ff;
  border: 1px solid #d8d0f0;
  border-radius: 4px;
  padding: 28px 32px;
  margin-bottom: 40px;
}
.trademark-info h2 { font-size: 16px; color: #3a1c71; margin-bottom: 12px; letter-spacing: 0.1em; }
.trademark-info p { font-size: 14px; color: #444; line-height: 1.9; margin-bottom: 10px; }
.trademark-info p:last-child { margin: 0; }
.trademark-info strong { color: #3a1c71; }

.license-section h2 {
  font-size: 18px;
  color: #3a1c71;
  border-left: 4px solid #c8a84b;
  padding-left: 12px;
  margin-bottom: 24px;
  letter-spacing: 0.1em;
}

.license-list { list-style: none; }
.license-list li {
  padding: 16px 0;
  border-bottom: 1px solid #e8e0f0;
  font-size: 14px;
}
.license-list li:last-child { border-bottom: none; }
.license-list li a { color: #1a6a80; font-weight: bold; }
.license-list li .note { color: #999; font-size: 12px; margin-top: 4px; display: block; letter-spacing: 0.05em; }

.back-link {
  text-align: center;
  margin-top: 48px;
}
.back-link a {
  display: inline-block;
  background: linear-gradient(135deg, #3a1c71, #1a6a80);
  color: #fff;
  padding: 12px 36px;
  border-radius: 2px;
  font-size: 14px;
  letter-spacing: 0.1em;
}

footer {
  background: #0d0818;
  color: rgba(255,255,255,0.35);
  text-align: center;
  padding: 24px;
  font-size: 12px;
  letter-spacing: 0.1em;
}
footer a { color: rgba(200,168,75,0.6); }

@media (max-width: 640px) {
  .page-header { padding: 40px 20px 120px; }
  .page-header h1 { font-size: 20px; }
  .container { padding: 36px 16px; }
  .trademark-info { padding: 20px 16px; }
  .trademark-info h2 { font-size: 15px; }
  .back-link a { padding: 12px 24px; font-size: 13px; }
  .sp-totop { display: flex !important; }
}

.sp-totop {
  display: none;
  position: fixed;
  bottom: 20px;
  right: 16px;
  z-index: 999;
}
.sp-totop a {
  width: 48px; height: 48px;
  background: #3a1c71;
  border: 2px solid #c8a84b;
  border-radius: 50%;
  color: white;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  box-shadow: 0 4px 16px rgba(58,28,113,0.4);
}

footer p + p { margin-top: 6px; }