@charset "UTF-8";

:root {
  /* 色管理用の変数 */
  --black-color: #1e1e1e;
  --white-color: #fff;
  --blue-color: #408fcf;
  --text-blue-color: #30abf8;
  --bg-blue-color: #effafb;
  --grad-btn-blue-color: linear-gradient(
    75deg,
    #b2def9 0%,
    #7dbfe9 20%,
    #4ca8e2 100%
  );
}

:root {
  /* コンテンツ幅管理用の変数 */
  --content-width: 790px;
  --content-width-large: 940px;
}

:root {
  /* z-index管理用の変数 */
  --z-index-back: -1;
  --z-index-default: 1;
  --z-index-header: 100;
}

/* ---------- base ---------- */

html {
  scroll-behavior: smooth;
}

body {
  color: var(--black-color);
  font-size: 16px;
  font-family: "Zen Kaku Gothic New", sans-serif;
  line-height: 1.8;
  letter-spacing: 0.04em;
  background-color: var(--bg-blue-color);
  overflow-x: hidden;
}

@media screen and (max-width: 450px) {
  body {
    font-size: 14px;
  }
}

/* ---------- layout ---------- */

.l_container_large,
.l_container {
  margin: 0 auto;
  padding: 0 16px;
}

.l_container_large {
  max-width: calc(var(--content-width-large) + 32px);
}

.l_container {
  max-width: calc(var(--content-width) + 32px);
}

@media screen and (max-width: 450px) {
  .l_container_large,
  .l_container {
    padding-left: 16px;
    padding-right: 16px;
  }
}

.l_header {
  height: 75px;
  width: 100%;
  display: flex;
  align-items: center;
  position: fixed;
  top: 0;
  left: 0;
  z-index: var(--z-index-header);
  padding: 0 24px;
  justify-content: space-between;
  background-color: var(--white-color);
}

@media screen and (max-width: 450px) {
  .l_header {
    height: 56px;
    padding: 0 12px;
  }
}

.l_header-logo {
  flex-shrink: 0;
}

.l_header-nav {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.l_header-logo_text {
  font-weight: 500;
  font-size: 32px;
}

@media screen and (max-width: 450px) {
  .l_header-logo_text {
    font-size: 22px;
  }
}

.l_header-nav_list {
  display: flex;
  gap: 0 24px;
  font-weight: 500;
  margin-left: auto;
}

@media screen and (max-width: 450px) {
  .l_header-nav_list {
    align-items: center;
    justify-content: center;
    gap: 0 5px;
  }
}

.l_header-nav_item {
  display: flex;
  height: 50px;
  gap: 48px;
  border-radius: 50px;
  flex-shrink: 0;
  justify-content: center;
  background: var(--grad-btn-blue-color);
  transition: opacity 0.2s;
}

@media screen and (max-width: 450px) {
  .l_header-nav_item {
    height: 32px;
  }
}

.l_header-nav_item:hover {
  opacity: 0.6;
}

.l_header-nav_link {
  display: flex;
  flex-direction: row;
  transition: 0.2s;
  align-items: center;
  gap: 8px;
  padding: 0px 24px;
}

@media screen and (max-width: 450px) {
  .l_header-nav_link {
    padding: 0px 12px;
  }
}

@media screen and (max-width: 390px) {
  .l_header-nav_link {
    padding: 0px 8px;
  }
}

.l_header-nav_link_text {
  font-size: 20px;
  text-align: center;
  color: var(--white-color);
}

@media screen and (max-width: 450px) {
  .l_header-nav_link_text {
    font-size: 12px;
  }
}

.l_section {
  padding-top: 80px;
  padding-bottom: 80px;
}

@media screen and (max-width: 450px) {
  .l_section {
    padding-top: 40px;
    padding-bottom: 40px;
  }
}

.l_footer {
  margin-top: 100px;
  text-align: center;
  font-size: 12px;
  padding-bottom: 4px;
}

@media screen and (max-width: 450px) {
  .l_footer {
    margin-top: 80px;

    font-size: 8px;
  }
}

/* mv */
.mv_wrapper {
  position: relative;
  margin-top: 75px;
  text-align: center;
}

@media screen and (max-width: 450px) {
  .mv_wrapper {
    flex-flow: column;
    margin-top: 50px;
    padding-bottom: 0;
  }
}

.mv_text-box {
  position: relative;
  background: linear-gradient(
    0deg,
    #82cfff 0%,
    #82cfff 55%,
    #8cd3ff 85%,
    #afe0ff 100%
  );
  padding: 60px 0;
  color: var(--white-color);
  width: 100%;
}

@media screen and (max-width: 450px) {
  .mv_text-box {
    padding: 32px 0 44px 0px;
  }
}

.mv_text-box::before {
  content: "";
  width: 100%;
  height: 120px;
  background-color: var(--bg-blue-color);
  position: absolute;
  bottom: 0px;
  right: 0px;
  clip-path: polygon(-100% 0%, 0% 100%, 50% 100%);
}

.mv_text-box::after {
  content: "";
  width: 100%;
  height: 120px;
  background-color: var(--bg-blue-color);
  position: absolute;
  bottom: 0px;
  left: 0px;
  clip-path: polygon(50% 100%, 100% 70%, 100% 100%);
}

.mv_sub-text {
  font-weight: 500;
  font-size: 20px;
}

@media screen and (max-width: 450px) {
  .mv_sub-text {
    font-size: 16px;
  }
}

.mv_main-text {
  font-weight: 600;
  font-size: 28px;
}

@media screen and (max-width: 450px) {
  .mv_main-text {
    font-size: 24px;
  }
}

.mv_img_wrapper {
  position: relative;
  z-index: var(--z-index-default);
  margin-top: -24px;
}

.mv_img {
  aspect-ratio: 100/62;
  object-fit: contain;
  max-height: 400px;
  height: 100%;
  width: 100%;
}

@media screen and (max-width: 450px) {
  .mv_img {
    height: 100%;
    max-height: 220px;
  }
}

.mv_text {
  font-weight: 500;
  font-size: 24px;
}

@media screen and (max-width: 790px) {
  .mv_text {
    text-align: center;
  }
}

@media screen and (max-width: 450px) {
  .mv_text {
    text-align: center;
    font-size: 16px;
  }
}

/* section1 */
.section1 {
  margin: 48px auto 0 auto;
  position: relative;
  padding-bottom: 90px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

@media screen and (max-width: 450px) {
  .mv_text {
    padding-bottom: 56px;
  }
}

.section1::before {
  border-color: transparent var(--white-color) transparent transparent;
  border-style: solid;
  border-width: 35px 100vw 0 0;
  bottom: 0;
  content: "";
  height: 0;
  position: absolute;
}

.section1_heading-text {
  font-family: "Noto Serif JP", serif;
  display: inline-block;
  font-weight: bold;
  font-size: 30px;
  background: linear-gradient(97deg, #28a7f6 0%, #1797e6 90%, #0687d7 100%);
  color: transparent;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  border-top: 1px solid #61b5e9;
  border-bottom: 1px solid #61b5e9;
  padding: 8px 32px;
}

@media screen and (max-width: 450px) {
  .section1_heading-text {
    font-size: 20px;
    padding: 6px 14px;
  }
}

.section1_main-text-box {
  margin-top: 20px;
  font-weight: bold;
}

@media screen and (max-width: 450px) {
  .section1_main-text-box {
    margin-top: 16px;
  }
}

.section1_main-text1 {
  font-size: 24px;
  text-align: center;
  letter-spacing: 0.1em;
}

@media screen and (max-width: 450px) {
  .section1_main-text1 {
    font-size: 16px;
  }
}

.section1_main-text2 {
  margin-top: 9px;
  font-size: 28px;
  display: flex;
  justify-content: center;
  align-items: center;
}

@media screen and (max-width: 450px) {
  .section1_main-text2 {
    font-size: 18px;
  }
}

.section1_main-text2 span:first-child {
  color: var(--white-color);
  padding: 3px 6px;
  background: linear-gradient(95deg, #28a7f6 0%, #1797e6 90%, #0687d7 100%);
  letter-spacing: 0.05em;
  margin-right: 8px;
  font-size: 28px;
}

@media screen and (max-width: 450px) {
  .section1_main-text2 span:first-child {
    font-size: 20px;
  }
}

.section1_main-text2 span:nth-child(2) {
  letter-spacing: 0.1em;
  position: relative;
  z-index: var(--z-index-default);
}

.section1_main-text2 span:nth-child(2)::after {
  content: "";
  width: 100%;
  height: 28px;
  background-image: url(../img/テキスト下線.svg);
  background-position: center;
  background-size: contain;
  background-repeat: no-repeat;
  position: absolute;
  bottom: -20px;
  left: 0;
  z-index: var(--z-index-back);
}

@media screen and (max-width: 450px) {
  .section1_main-text2 span:nth-child(2)::after {
    height: 16px;
    bottom: -10px;
  }
}

/* section2 */
.section2 {
  background-color: var(--white-color);
  position: relative;
  padding-top: 30px;
  padding-bottom: 80px;
  position: relative;
}

@media screen and (max-width: 450px) {
  .section2 {
    padding-top: 16px;
  }
}

.section2::before {
  border-color: transparent transparent transparent var(--bg-blue-color);
  border-style: solid;
  border-width: 35px 0 0 100vw;
  bottom: 0;
  content: "";
  height: 0;
  position: absolute;
}

.section2_title {
  font-weight: bold;
  font-size: 30px;
  letter-spacing: 0.05em;
  text-align: center;
}

@media screen and (max-width: 450px) {
  .section2_title {
    font-size: 20px;
  }
}

.section2_title span {
  font-size: 50px;
  letter-spacing: 0.13em;
  font-weight: 900;
  background: linear-gradient(90deg, #4a98fe 0%, #89d2ff 100%);
  color: transparent;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-right: 4px;
}

@media screen and (max-width: 450px) {
  .section2_title span {
    font-size: 36px;
  }
}

.section2_list {
  margin: 40px auto 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  max-width: calc(800px + 32px);
  padding: 0 16px;
}

@media screen and (max-width: 450px) {
  .section2_list {
    margin: 32px auto 0;
    max-width: calc(100% - 24px);
    padding: 0;
  }
}

.flex-row {
  display: flex;
  justify-content: center;
  gap: 40px;
  width: 100%;
}

@media screen and (max-width: 450px) {
  .flex-row {
    gap: 24px;
  }
}

.middle-row {
  gap: 40px;
}

@media screen and (max-width: 450px) {
  .middle-row {
    gap: 24px;
  }
}

.circle {
  width: 180px;
  height: auto;
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  font-size: 20px;
  font-weight: 500;
  box-shadow: 0 1px 3.5px #99c7e4;
  flex-shrink: 0;
  border: 1px solid transparent;
  position: relative;
  background: linear-gradient(170deg, #c1e2f6 0%, #5ba2ff 25%, #4a98fe 100%);
  box-sizing: border-box;
}

@media screen and (max-width: 450px) {
  .circle {
    width: calc((100% - 24px * 2) / 3);
    font-size: 15px;
  }
}

.circle_inner {
  background-color: var(--white-color);
  border-radius: 50%;
  width: calc(100% - 1px);
  height: calc(100% - 1px);
  display: flex;
  justify-content: center;
  align-items: center;
}

@media screen and (max-width: 375px) {
  .circle {
    font-size: 14px;
  }
}

/* section3 */
.section3 {
  padding: 60px 0;
  margin: 0 auto;
  position: relative;
}

@media screen and (max-width: 450px) {
  .section3 {
    padding: 50px 0;
  }
}

.section3_title {
  font-size: 30px;
  letter-spacing: -0.2em;
  font-weight: 900;
  background: linear-gradient(90deg, #4a98fe 0%, #89d2ff 100%);
  color: transparent;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-align: center;
  transform: skewX(-7deg);
}

@media screen and (max-width: 450px) {
  .section3_title {
    font-size: 18px;
  }
}

.section3_title span {
  letter-spacing: 0.11em;
  font-weight: bold;
  font-size: 40px;
  margin-left: 12px;
}

@media screen and (max-width: 450px) {
  .section3_title span {
    font-size: 32px;
    margin-left: 8px;
  }
}

.section3_list {
  margin: 32px auto 0;
  display: flex;
  flex-direction: column;
  gap: 40px;
  align-items: center;
  max-width: 360px;
}

@media screen and (max-width: 450px) {
  .section3_list {
    gap: 24px;
  }
}

.section3_list_item {
  width: 450px;
  background-color: var(--white-color);
  border-radius: 12px;
  text-align: center;
  padding: 40px;
  box-shadow: 0 0 4px rgba(211, 224, 233, 0.3);
}

@media screen and (max-width: 450px) {
  .section3_list_item {
    width: 360px;
    max-width: calc(100% - 32px);
    padding: 20px;
  }
}

.section3_list_item_text {
  font-size: 22px;
  font-weight: 500;
}

@media screen and (max-width: 450px) {
  .section3_list_item_text {
    font-size: 20px;
  }
}

.section3_list_item_text span {
  font-weight: bold;
  color: var(--text-blue-color);
  line-height: 1.8;
}

.section3_list_item_img {
  height: 250px;
  width: 100%;
  margin-top: 26px;
}

@media screen and (max-width: 450px) {
  .section3_list_item_img {
    height: 230px;
    margin-top: 16px;
  }
}

/* section4 */
.section4 {
  position: relative;
  background-image: linear-gradient(
    135deg,
    rgba(239, 249, 251, 1) 3%,
    rgba(190, 218, 255, 1) 35%,
    rgba(189, 218, 255, 0.83) 77%,
    rgba(239, 249, 251, 1)
  );
  padding: 90px 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

@media screen and (max-width: 450px) {
  .section4 {
    padding: 80px 0;
  }
}

.section4::before {
  border-color: var(--bg-blue-color) transparent transparent transparent;
  border-style: solid;
  border-width: 35px 100vw 0 0;
  top: 0;
  content: "";
  height: 0;
  position: absolute;
}

.section4::after {
  border-color: transparent transparent transparent var(--bg-blue-color);
  border-style: solid;
  border-width: 35px 0 0 100vw;
  bottom: 0;
  content: "";
  height: 0;
  position: absolute;
}

.section4_title {
  display: inline-block;
  font-size: 30px;
  letter-spacing: 0.04em;
  font-weight: bold;
  color: var(--white-color);
  background: linear-gradient(90deg, #4a98fe 0%, #89d2ff 100%);
  text-align: center;
  padding: 0 12px;
}

@media screen and (max-width: 450px) {
  .section4_title {
    font-size: 24px;
  }
}

.section4_title span {
  font-size: 32px;
  letter-spacing: 0.16em;
}

@media screen and (max-width: 450px) {
  .section4_title span {
    font-size: 28px;
  }
}

.section4_list {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

@media screen and (max-width: 450px) {
  .section4_list {
    margin-top: 32px;
  }
}

.section4_list_item {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-direction: row;
  background-color: rgba(255, 255, 255, 0.7);
  padding: 20px;
  border-radius: 6px;
  max-width: 600px;
}

@media screen and (max-width: 450px) {
  .section4_list_item {
    gap: 8px;
    padding: 12px;
    max-width: 385px;
  }
}

.section4_list_item_numbering {
  font-family: "barlow", serif;
  font-size: 21px;
  color: var(--white-color);
  width: 40px;
  height: 40px;
  background-color: #66abf2;
  border-radius: 50%;
  flex-shrink: 0;
  text-align: center;
  letter-spacing: 0.06em;
}

@media screen and (max-width: 450px) {
  .section4_list_item_numbering {
    font-size: 14px;
    width: 26px;
    height: 26px;
  }
}

.section4_list_item_text {
  font-size: 20px;
  font-weight: 500;
}

@media screen and (max-width: 450px) {
  .section4_list_item_text {
    font-size: 15px;
  }
}

/* section5 */
.section5 {
  padding: 60px 0;
  margin: 0 auto;
  position: relative;
}

@media screen and (max-width: 450px) {
  .section5 {
    padding: 40px 0;
  }
}

.section5_title {
  font-size: 40px;
  letter-spacing: 0.11em;
  font-weight: bold;
  background: linear-gradient(90deg, #4a98fe 0%, #89d2ff 100%);
  color: transparent;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-align: center;
  transform: skewX(-7deg);
}

@media screen and (max-width: 450px) {
  .section5_title {
    font-size: 32px;
  }
}

.section5_title span {
  font-size: 45px;
}

@media screen and (max-width: 450px) {
  .section5_title span {
    font-size: 38px;
  }
}

.section5_list {
  margin: 32px auto 0;
  display: flex;
  flex-direction: column;
  gap: 45px;
  align-items: center;
}

@media screen and (max-width: 450px) {
  .section5_list {
    margin: 24px auto 0;
    gap: 32px;
  }
}

.section5_list_item {
  display: flex;
  gap: 20px;
  text-align: center;
  align-items: center;
  flex-direction: column;
}

@media screen and (max-width: 450px) {
  .section5_list_item {
    gap: 12px;
    max-width: calc(100% - 24px);
  }
}

.section5_list_item_title {
  display: inline-block;
  font-size: 20px;
  font-weight: 500;
  background-color: #4a98fe;
  color: var(--white-color);
  padding: 8px;
  line-height: 1.5;
}

@media screen and (max-width: 450px) {
  .section5_list_item_title {
    font-size: 16px;
    padding: 4px;
  }
}

.section5_list_item_desc {
  font-size: 18px;
}

@media screen and (max-width: 450px) {
  .section5_list_item_desc {
    font-size: 12px;
  }
}

.section5_list_item_img {
  height: auto;
  width: 450px;
}

@media screen and (max-width: 450px) {
  .section5_list_item_img {
    width: 300px;
  }
}

.section5_list_item:last-child .section5_list_item_title {
  background-color: transparent;
  color: var(--black-color);
  letter-spacing: 0.1em;
  font-size: 28px;
  font-weight: bold;
  line-height: 0.6;
}

@media screen and (max-width: 450px) {
  .section5_list_item:last-child .section5_list_item_title {
    font-size: 24px;
    line-height: 1;
  }
}

.section5_list_item:last-child .section5_list_item_title span {
  color: #4a98fe;
  font-size: 38px;
  background-image: radial-gradient(
    circle at center,
    #346593 20%,
    transparent 20%
  );
  background-position: top left;
  background-repeat: repeat-x;
  background-size: 1.04em 0.3em;
  padding-top: 8px;
}

@media screen and (max-width: 450px) {
  .section5_list_item:last-child .section5_list_item_title span {
    font-size: 32px;
  }
}

/* section6 */
.section6 {
  position: relative;
  background-image: linear-gradient(
    135deg,
    rgba(239, 249, 251, 1) 3%,
    rgba(190, 218, 255, 1) 35%,
    rgba(189, 218, 255, 0.83) 77%,
    rgba(239, 249, 251, 1)
  );
  padding: 90px 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

@media screen and (max-width: 450px) {
  .section6 {
    padding: 60px 0;
  }
}

.section6::before {
  border-color: var(--bg-blue-color) transparent transparent transparent;
  border-style: solid;
  border-width: 35px 100vw 0 0;
  top: 0;
  content: "";
  height: 0;
  position: absolute;
}

.section6::after {
  border-color: transparent var(--bg-blue-color) transparent transparent;
  border-style: solid;
  border-width: 35px 100vw 0 0;
  bottom: 0;
  content: "";
  height: 0;
  position: absolute;
}

.section6_text {
  font-size: 32px;
  letter-spacing: 0.1em;
  font-weight: bold;
  text-align: center;
  transform: skewX(-10deg);
}

@media screen and (max-width: 450px) {
  .section6_text {
    font-size: 24px;
  }
}

.section6_text span {
  font-size: 50px;
  font-weight: 900;
  background: linear-gradient(90deg, #4377d9 0%, #7c94f2 63%, #a9c0ea 100%);
  color: transparent;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  position: relative;
  z-index: var(--z-index-default);
  padding: 0 16px;
  margin: 0 10px;
}

@media screen and (max-width: 450px) {
  .section6_text span {
    font-size: 40px;
    margin: 0 6px;
  }
}

.section6_text span::after {
  content: "";
  width: 100%;
  height: 95%;
  position: absolute;
  top: 55%;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: var(--white-color);
  z-index: var(--z-index-back);
}

/* cta */
.cta {
  border-radius: 24px;
  box-shadow: 2px 3px 3.8px rgba(175, 193, 204, 0.56);
  border: 1px solid transparent;
  position: relative;
  background: linear-gradient(170deg, #c1e2f6 0%, #5ba2ff 25%, #4a98fe 100%);
  margin: 40px auto 0;
  max-width: 600px;
  width: calc(100% - 32px);
}

@media screen and (max-width: 550px) {
  .cta {
    border-radius: 15px;
    max-width: calc(100% - 32px);
  }
}

.cta_inner {
  background-color: var(--white-color);
  border-radius: 24px;
  width: calc(100% - 1px);
  height: calc(100% - 1px);
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  padding: 36px 0;
}

@media screen and (max-width: 450px) {
  .cta_inner {
    border-radius: 15px;

    padding: 25px 0;
  }
}

.cta_inner_text {
  font-weight: 500;
  font-size: 22px;
  display: flex;
  position: relative;
  align-items: center;
  flex-direction: row;
  gap: 8px;
}

@media screen and (max-width: 450px) {
  .cta_inner_text {
    font-size: 16px;
  }
}

.cta_inner_text::before,
.cta_inner_text::after {
  content: "";
  height: 1px;
  width: 32px;
  background-color: #4fa9e2;
}

@media screen and (max-width: 450px) {
  .cta_inner_text::before,
  .cta_inner_text::after {
    width: 25px;
  }
}

.cta_inner_text::before {
  transform: rotate(60deg);
}

.cta_inner_text::after {
  transform: rotate(-60deg);
}

.cta_link {
  display: block;
  margin-top: 20px;
  width: 350px;
  height: 80px;
  display: flex;
  align-items: center;
  background: var(--grad-btn-blue-color);
  border-radius: 50px;
  justify-content: center;
  transition: 0.2s;
}

.cta_link:hover {
  opacity: 0.6;
}

@media screen and (max-width: 450px) {
  .cta_link {
    margin-top: 12px;
    width: 260px;
    height: 65px;
  }
}

.cta_inner_link_text {
  color: var(--white-color);
  font-weight: bold;
  font-size: 28px;
  letter-spacing: 0.1em;
}

@media screen and (max-width: 450px) {
  .cta_inner_link_text {
    font-size: 24px;
  }
}