html,
body {
  overflow-x: hidden;
}

.st_wrap {
	width: 96%;
	max-width: 1000px;
	margin: 0 auto;
}

.st_wrap img {
	width: 100%;
	vertical-align: bottom;
}

section p {
  padding: 6px;
  margin-bottom: 1.5rem;
  color: #333;
  line-height: 1.6;
  font-style: italic;
}


/* ===== タイトル ===== */
.main-title {
  padding: 0.3rem 0.6rem;
  margin-top: 3rem;
  margin-bottom: 1.5rem;
  border-bottom: 3px solid #093f8c;
  color: #093f8c;
  font-size: 1.2rem;
  font-weight: bold;
  font-style: italic;
}

/* ===== フキダシ ===== */
.bubble1 {
  position: relative;
  display: block;
  padding: 8px 10px;
  max-width: 100%;
  background: #093f8c;
  font-size: 1rem;
  font-weight: bold;
  font-style: italic;
  color: #fff;
  margin: 2rem auto;
}

.bubble1::before {
  content: "";
  position: absolute;
  top: 100%;
  left: 5%;
  border: 12px solid transparent;
  border-top-color: #093f8c;
}

/* ===== チェックリスト ===== */
ul.sticky-list {
  list-style: none;
  padding: 0;
  margin: 1rem auto;
}

ul.sticky-list li {
  position: relative;
  background: #eee;
  border: 2px solid #093f8c;
  border-radius: 3px;
  padding: 12px 16px 12px 40px;
  margin-bottom: 10px;
  box-shadow: 2px 2px 5px rgba(0, 0, 0, 0.15);
  color: #093f8c;
  font-weight: bold;
}

ul.sticky-list li::before {
  content: "✔";
  position: absolute;
  left: 12px;
  top: 10px;
  color: #093f8c;
  font-weight: bold;
}

/* ===== 交互レイアウト ===== */
.item {
  display: flex;
  align-items: center;
  gap: 40px;
  margin-bottom: 2.5rem;
}

.item:nth-child(even) {
  flex-direction: row-reverse;
}

.item-img img {
  width: 100%;
  max-width: 480px;
  height: auto;
  display: block;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.item-text {
  flex: 1;
}

.item-text h3 {
  padding: 3px;
  margin-bottom: 0.8rem;
  border-bottom: 2px solid #eee;
  font-size: 1rem;
  font-weight: bold;
  color: #093f8c;
}

.item-text p {
  line-height: 1.8;
  color: #333;
}

/* ===== スマホ ===== */
@media (max-width: 768px) {
  .item,
  .item:nth-child(even) {
    flex-direction: column;
    gap: 20px;
  }

  .item-img img {
    max-width: 100%;
  }

  .item-text {
    width: 100%;
  }
}