body {
  margin: 0;
  text-align: center;
  min-height: 100vh;
  padding-top: 60px;
  background: radial-gradient(circle at top, #0a0f2c 0%, #010108 40%, #000 100%);
  color: #ffffff;

  font-family: "Arial", sans-serif;
}
.sub {
  margin-top: 10px;
  font-size: 14px;
  letter-spacing: 0.3em;
  color: rgba(230, 136, 192, 0.6);
}
.main-text {
  margin-top: 40px;
  line-height: 1.8;
  font-size: 15px;
  color: rgba(228, 219, 222, 0.8);
}

.date {
  color: #e0dfdf;
}


.neon-text {
  font-size: 64px;
  font-weight: bold;
  letter-spacing: 0.2em;
  color: #ff31f5;

  text-shadow:
    0 0 4px #fff,
    0 0 10px #ff31f5,
    0 0 25px #ff31f5,
    0 0 40px #00f6ff,
    0 0 60px rgba(255, 0, 255, 0.5);

  animation:
    neon-glow 3s ease-in-out infinite,
    neon-flicker 4s infinite steps(1, end);
}

/* じわっと明るさが揺れる */
@keyframes neon-glow {
  0%   { filter: brightness(0.9); }
  50%  { filter: brightness(1.15); }
  100% { filter: brightness(0.9); }
}

/* ネオン管が不調な感じのチカチカ */
@keyframes neon-flicker {
  0%   { opacity: 1; }
  3%   { opacity: 0.4; text-shadow: none; }
  6%   { opacity: 1; }
  9%   { opacity: 0.6; }
  12%  { opacity: 1; }

  20%  { opacity: 0.2; text-shadow: none; }
  22%  { opacity: 1; }

  35%  { opacity: 0.8; }
  55%  { opacity: 1; }

  58%  { opacity: 0.3; text-shadow: none; }
  60%  { opacity: 1; }

  100% { opacity: 1; }
}

.リンクの色 {
  color: #ffffff;
  text-decoration: none;
}
.Kotira {
  color: #ff31f5;
  text-decoration: none;
}
a.Kotira:hover {
  color: #af18a8;
}
a:hover {
  color: #ff31f5;
}

/* テーブル外枠 */
.archive-table {
  border: 1px solid rgba(255,255,255,0.35);

  max-width: 800px;
  margin: 0 auto;
}
/* 行 */
.row {
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.cell {
  padding: 14px 18px;
  border-bottom: 1px solid rgba(255,255,255,0.35);

  text-align: left;        /* ← ここで文字を左寄せ */
  box-sizing: border-box;  /* 念のため */
}
.title {
  border-right: 1px solid rgba(255,255,255,0.35);
  font-weight: 500;
}
.desc {
  opacity: 0.85;
  color: #d327ca;
}
/* 最終行の下線を消す（任意） */
.row:last-child .cell {
  border-bottom: none;
}


@media (min-width: 769px) {
  .archive-row {
    border-left: 1px solid rgba(255,255,255,0.25);
    border-right: 1px solid rgba(255,255,255,0.25);
  }
}

@media (max-width: 768px) {
  body {
    margin-left: 20px;
    margin-right: 20px;
  }
  .archive-row {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .archive-num {
    text-align: left;
    font-size: 1rem;
    opacity: 0.7;
  }
}