.ob-lp {
  color: #333;
  line-height: 1.75;
  font-family:
    "Roboto",
    "Noto Sans JP",
    "Hiragino Kaku Gothic ProN",
    "Hiragino Sans",
    "Yu Gothic",
    "YuGothic",
    Meiryo,
    sans-serif;
}

.ob-lp img {
  display: block;
  width: 100%;
  height: auto;
}

.ob-lp a {
  text-decoration: none;
}

.ob-lp button {
  font: inherit;
}

.ob-lp__inner {
  width: 100%;
  overflow: hidden;
}

.ob-section {
  padding: 40px 0 60px;
}

.ob-header {
  background: #fff;
  padding: 1.2rem 1.6rem;
}

.ob-header__logoWrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ob-header__logo {
  width: 340px !important;
  max-width: 70%;
}

.ob-header__menu {
  display: inline-flex;
  width: 3.6rem;
  height: 3.6rem;
  padding: 0;
  border: none;
  background: transparent;
  flex-direction: column;
  justify-content: center;
  gap: 0.5rem;
  cursor: pointer;
}

.ob-header__menu span {
  display: block;
  width: 2.2rem;
  height: 0.2rem;
  margin-inline: auto;
  background: #666;
}

.ob-lp .ob-menu__toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.5rem;
  width: 4.4rem;
  height: 4.4rem;
  padding: 0;
  border: 0;
  background: #666;
  cursor: pointer;
  transition: opacity 0.2s ease;
}

.ob-lp .ob-menu__toggle:hover {
  opacity: 0.8;
}

.ob-lp .ob-menu__toggle span {
  display: block;
  width: 2rem;
  height: 0.2rem;
  margin: 0 auto;
  background: #fff;
}

.ob-lp .ob-menu__overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  z-index: 99;
}

.ob-lp .ob-menu__drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: min(calc(100vw / 2), 82vw);
  height: 100dvh;
  background: #fff;
  box-shadow: 0 0 2rem rgba(0, 0, 0, 0.18);
  transform: translateX(100%);
  transition: transform 0.35s ease;
  z-index: 100;
  overflow-y: auto;
  padding: 8rem 2.4rem 3.2rem;
}

.ob-lp .ob-menu.is-open .ob-menu__drawer {
  transform: translateX(0);
}

.ob-lp .ob-menu.is-open .ob-menu__overlay {
  opacity: 1;
  visibility: visible;
}

.ob-lp .ob-menu__close {
  position: absolute;
  top: 1.6rem;
  right: 1.6rem;
  width: 4rem;
  height: 4rem;
  border: 0;
  background: #666;
  color: #fff;
  font-size: 2.4rem;
  line-height: 1;
  cursor: pointer;
  transition: opacity 0.2s ease;
}

.ob-lp .ob-menu__close:hover {
  opacity: 0.8;
}

.ob-lp .ob-menu__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.ob-lp .ob-menu__list li + li {
  margin-top: 2rem;
}

.ob-lp .ob-menu__list a {
  display: block;
  color: #4a4a4a;
  text-decoration: none;
  font-size: 1.2rem;
  line-height: 1.5;
  transition: all 0.2s ease;
}

.ob-lp .ob-menu__list a:hover {
  color: #38B6FF;
}

.ob-lp .ob-menu__list a strong {
  display: block;
  margin-top: 0.2rem;
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.4;
}

.ob-fv {
  position: relative;
  background: #fff;
}

.ob-fv__desc {
  margin: 40px auto 60px;
  text-align: center;
  color: #777;
  font-size: 1.75rem;
  font-weight: bold;
}

.ob-bar {
  position: relative;
  padding-top: 3.6rem;
}

.ob-bar h2 {
  margin: 0;
  color: #fff;
  text-align: center;
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1.5;
  background: #38B6FF;
  padding: 1rem 1.6rem;
}

.topic-heading__cap {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 9.6rem;
  height: 5rem;
  background: #38B6FF;
  border-radius: 4.8rem 4.8rem 0 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #fff;
  z-index: 1;
}

.topic-heading__cap-en {
  font-size: 1.2rem;
  line-height: 1;
}

.topic-heading__cap-num {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.2;
}

.ob-lead {
  margin: 0;
  color: #38B6FF;
  font-size: 2rem;
  font-weight: bold;
  text-align: center;
}

.ob-image {
  display: flex;
  align-items: center;
  justify-content: center;
}

.ob-image img {
  width: 900px;
  height: auto;
}

.ob-text {
  margin: 0 auto;
  width: 630px;
  font-size: 1.6rem;
}

.ob-text:not(:first-child) {
  margin-top: 20px;
}

.ob-section__body {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.ob-featureCard + .ob-featureCard {
  margin-top: 4rem;
}

.ob-featureCard__label {
  margin: 0 0 1.2rem;
  text-align: center;
  font-size: 1.8rem;
  position: relative;
}

.ob-featureCard__label::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 4rem;
  height: 0.2rem;
  background: #38B6FF;
  border-radius: 9999px;
}

.ob-featureCard__title {
  margin: 0 0 2rem;
  text-align: center;
  font-size: 1.8rem;
  color: #444;
}

.ob-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: min(100%, 30rem);
  min-height: 6rem;
  margin: 0 auto;
  padding: 0 2rem;
  border-radius: 9999px;
  font-size: 1.6rem;
  font-weight: 700;
  text-align: center;
  box-shadow: 0 0.5rem 0.3rem rgba(0, 0, 0, 0.1);
  color: #fff;
  position: relative;
}

.ob-btn::before {
  content: "";
  background: url("./assets/button_arrow.svg") no-repeat center center / contain;
  width: 20px;
  height: 20px;
  position: absolute;
  right: 20px;
}

.ob-btn--orange {
  position: relative;
  overflow: hidden;
  z-index: 1;
}

/* デフォ背景 */
.ob-btn--orange {
  background: linear-gradient(90deg, #FF9330 0%, rgba(255,147,48,0.7) 100%);
}

/* hover用レイヤー */
.ob-btn--orange::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, #FFBB7D 0%, rgba(255,187,125,0.7) 100%);
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 0;
}

.ob-btn--orange:hover::after {
  opacity: 0.5;
}

.ob-btn--blue {
  position: relative;
  overflow: hidden;
  z-index: 1;
  background: linear-gradient(90deg, #38B6FF 0%, rgba(56, 182, 255, 0.7) 100%);
}

/* hover用レイヤー */
.ob-btn--blue::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, #71CBFF 0%, rgba(113, 203, 255, 0.7) 100%);
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 0;
}

.ob-btn--blue:hover::after {
  opacity: 0.5;
}

.ob-faq__list {
  list-style: none;
}

.ob-faq__item:not(:first-child) {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 2px dashed #D4D4D4;
}

.ob-faq__item {
  margin: 0 auto;
  width: 630px;
}

.ob-faq__item + .ob-faq__item {
  margin-top: 1.2rem;
}

.ob-faq__question, .ob-faq__answer {
  display: flex;
  gap: 1.2rem;
  width: 100%;
  background: #fff;
  text-align: left;
}

.ob-faq__question span:first-child, .ob-faq__answer span:first-child {
  color: #2ea6dd;
  font-size: 1.8rem;
  font-weight: 700;
  line-height: 1.4;
}

.ob-faq__question span:last-child, .ob-faq__answer span:last-child {
  font-size: 1.5rem;
}

.ob-bottom {
  padding: 3rem;
  background-color: #F5F7FA;
}

.ob-bottom__logo {
  max-width: 19rem !important;
  margin: 0 auto;
}

.ob-bottom__copyright {
  margin: 0.5rem auto 0;
  text-align: center;
  font-size: 1.2rem;
  color: #777;
}
.ob-bottom-flex {
display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
}

/* =========================
   SP: 800px以下
========================= */
@media screen and (max-width: 799px) {
  .ob-section {
    padding: 3.2rem 1.2rem;
  }

  .ob-header {
    padding: 1rem 1.2rem;
  }

  .ob-header__logo {
    width: 18rem;
  }

  .ob-fv__desc {
    font-size: 1.2rem;
  }

  .ob-bar h2 {
    font-size: 2rem;
    padding: 2rem 0;
  }

  .ob-lead {
    font-size: 1.8rem;
  }

  .ob-section__title {
    font-size: 1.8rem;
    margin-bottom: 1.6rem;
  }

  .ob-text {
    width: 100%;
    font-size: 1.4rem;
  }

  .ob-faq__item {
    width: 100%;;
  }

  .ob-image img {
    width: 100%;;
  }
}