@charset "UTF-8";
/* url: https://unpkg.com/ress@5.0.2/dist/ress.min.css */
html {
  -webkit-text-size-adjust: 100%;
  box-sizing: border-box;
  -moz-tab-size: 4;
  tab-size: 4;
  word-break: normal;
}

*, :after, :before {
  background-repeat: no-repeat;
  box-sizing: inherit;
}

:after, :before {
  text-decoration: inherit;
  vertical-align: inherit;
}

* {
  margin: 0;
  padding: 0;
}

hr {
  color: inherit;
  height: 0;
  overflow: visible;
}

details, main {
  display: block;
}

summary {
  display: list-item;
}

small {
  font-size: 80%;
}

[hidden] {
  display: none;
}

abbr[title] {
  border-bottom: none;
  text-decoration: underline;
  text-decoration: underline dotted;
}

a {
  background-color: transparent;
}

a:active, a:hover {
  outline-width: 0;
}

code, kbd, pre, samp {
  font-family: monospace, monospace;
}

pre {
  font-size: 1em;
}

b, strong {
  font-weight: bolder;
}

sub, sup {
  font-size: 75%;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
}

sub {
  bottom: -0.25em;
}

sup {
  top: -0.5em;
}

table {
  border-color: inherit;
  text-indent: 0;
}

iframe {
  border-style: none;
}

input {
  border-radius: 0;
}

[type=number]::-webkit-inner-spin-button, [type=number]::-webkit-outer-spin-button {
  height: auto;
}

[type=search] {
  -webkit-appearance: textfield;
  outline-offset: -2px;
}

[type=search]::-webkit-search-decoration {
  -webkit-appearance: none;
}

textarea {
  overflow: auto;
  resize: vertical;
}

button, input, optgroup, select, textarea {
  font: inherit;
}

optgroup {
  font-weight: 700;
}

button {
  overflow: visible;
}

button, select {
  text-transform: none;
}

[role=button], [type=button], [type=reset], [type=submit], button {
  cursor: pointer;
}

[type=button]::-moz-focus-inner, [type=reset]::-moz-focus-inner, [type=submit]::-moz-focus-inner, button::-moz-focus-inner {
  border-style: none;
  padding: 0;
}

[type=button]::-moz-focus-inner, [type=reset]::-moz-focus-inner, [type=submit]::-moz-focus-inner, button:-moz-focusring {
  outline: 1px dotted ButtonText;
}

[type=reset], [type=submit], button, html [type=button] {
  -webkit-appearance: button;
}

button, input, select, textarea {
  background-color: transparent;
  border-style: none;
}

a:focus, button:focus, input:focus, select:focus, textarea:focus {
  outline-width: 0;
}

select {
  -moz-appearance: none;
  -webkit-appearance: none;
}

select::-ms-expand {
  display: none;
}

select::-ms-value {
  color: currentColor;
}

legend {
  border: 0;
  color: inherit;
  display: table;
  max-width: 100%;
  white-space: normal;
}

::-webkit-file-upload-button {
  -webkit-appearance: button;
  color: inherit;
  font: inherit;
}

[disabled] {
  cursor: default;
}

img {
  border-style: none;
}

progress {
  vertical-align: baseline;
}

[aria-busy=true] {
  cursor: progress;
}

[aria-controls] {
  cursor: pointer;
}

[aria-disabled=true] {
  cursor: default;
}

html {
  font-family: "Noto Sans JP", "Hiragino Sans", "Helvetica Neue", Arial, sans-serif;
  font-feature-settings: "palt";
  letter-spacing: 0.02em;
  box-sizing: border-box;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  line-height: 1.7;
  color: #333;
  scroll-behavior: smooth;
}
@media (max-width: 768px) {
  html {
    font-size: 14px;
  }
}

*, *::before, *::after {
  box-sizing: inherit;
}

body {
  background-color: #f7f7f7;
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

summary {
  display: block;
}

summary::-webkit-details-marker {
  display: none;
}

.l-body {
  background-color: #ffffff;
}

/*
.l-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 80px;
  z-index: 999;
  background-color: #f8f8f8;
  border-bottom: 1px solid #e5e5e5;
  transform: translateY(-100%);
  transition: transform 0.35s ease;
  @include mq-sp {
    height: 70px;
  }
}

.l-header.is-visible {
  transform: translateY(0);
}
*/
.l-cta {
  position: fixed;
  bottom: env(safe-area-inset-bottom, 0);
  padding-bottom: calc(16px + env(safe-area-inset-bottom, 0));
  left: calc(50% - 580px);
  transform: translateX(-50%);
  width: min(92vw, 480px);
  z-index: 999;
  border-bottom: 1px solid #e5e5e5;
  transform: translateY(100%);
  display: flex;
  transition: transform 0.35s ease;
}
@media (max-width: 768px) {
  .l-cta {
    width: 90%;
    left: calc(50% - 170px);
  }
}

.l-cta.is-visible {
  transform: translateY(0);
}

.l-main {
  padding-bottom: 0px;
}

.l-footer {
  background-color: #ffffff;
  border-top: 1px solid #e5e5e5;
  padding: 24px 0;
}

.l-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
}
@media (max-width: 768px) {
  .l-inner {
    padding-inline: 16px;
  }
}

.l-innerpub {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 16px;
}
@media (max-width: 768px) {
  .l-innerpub {
    padding-inline: 16px;
  }
}

.l-innertoc {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 16px;
}
@media (max-width: 768px) {
  .l-innertoc {
    padding-inline: 16px;
  }
}

.l-innerauthor {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 16px;
}
@media (max-width: 768px) {
  .l-innerauthor {
    padding-inline: 16px;
  }
}

.c-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8em 1.8em;
  border-radius: 9999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
  text-decoration: none;
  background-color: rgba(255, 255, 255, 0.5);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.8);
}
.c-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
}
.c-button:active {
  transform: translateY(0);
  box-shadow: none;
}
.c-button--primary {
  background-color: #FF8C00;
  padding: 10px 30px;
  color: #fff;
}
.c-button--accent {
  background-color: #0070f3;
  color: #fff;
}
.c-button--image {
  padding: 0;
  background: none;
  box-shadow: none;
}
.c-button--image__amazon {
  display: inline-block;
  background-image: url(../img/logo/amazon-logo-squid-ink-smile-orange.png);
  background-size: 80px;
  background-repeat: no-repeat;
  background-position: center;
  padding: 12px 16px 2px;
  border: 1.5px solid #837455;
  box-sizing: border-box;
  width: 45%;
  height: auto;
  min-height: 50px;
  background-color: rgba(255, 255, 255, 0.5);
}
.c-button--image__amazoncta {
  background-color: rgba(255, 255, 255, 0.9);
}
.c-button--image__rakuten {
  display: inline-block;
  background-image: url(../img/logo/Rakuten_Global_Brand_Logo.svg.png);
  background-size: 80px;
  background-repeat: no-repeat;
  background-position: center;
  padding: 8px 16px;
  border: 1.5px solid #837455;
  box-sizing: border-box;
  width: 45%;
  height: auto;
  min-height: 50px;
  background-color: rgba(255, 255, 255, 0.5);
}
.c-button--image__rakutencta {
  background-color: rgba(255, 255, 255, 0.9);
}

.c-marker {
  font-size: 1.3rem;
  font-weight: 500;
  background: linear-gradient(to bottom, transparent 60%, #ffff66 60%);
  background-size: 0 100%;
  background-repeat: no-repeat;
  opacity: 0;
  transition: opacity 0.3s;
}

.c-marker.is-active {
  animation: marker 3s ease forwards;
  animation-delay: 0.5s;
  opacity: 1;
}

@keyframes marker {
  from {
    background-size: 0 100%;
  }
  to {
    background-size: 100% 100%;
  }
}
.fade-text {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-img {
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade--1s {
  transition-duration: 1s;
}

.fade--2s {
  transition-duration: 2s;
}

.fade--3s {
  transition-duration: 3s;
}

.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.p-section-title {
  font-size: 1.6rem;
  font-weight: 500;
  margin-top: 64px;
  margin-bottom: 4px;
  text-align: center;
  color: #1d2b68;
}

.p-section-subtitle {
  font-size: 0.8rem;
  font-weight: 400;
  text-align: center;
  margin-bottom: 48px;
  color: #1d2b68;
}

.p-cta__book--btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  background: transparent;
  flex: 1 1 0;
}
@media (max-width: 768px) {
  .p-cta__book--btn {
    width: 100%;
  }
}

.p-hero {
  position: relative;
  padding: 64px 0 100px;
}
.p-hero__bg {
  position: absolute;
  background: linear-gradient(to bottom, #E4E6F2, #fff);
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: -100;
}
@media (max-width: 768px) {
  .p-hero {
    padding-top: 16px;
    padding-bottom: 50px;
  }
}
.p-hero__inner {
  flex-wrap: nowrap;
  gap: 32px;
}
@media (max-width: 768px) {
  .p-hero__inner {
    flex-direction: column-reverse;
  }
}
.p-hero__title {
  position: relative;
}
.p-hero__title::before, .p-hero__title::after {
  content: "";
  position: absolute;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.6s ease, transform 0.6s ease;
  transition-duration: 3s;
}
.p-hero__title.is-visible::before, .p-hero__title.is-visible::after {
  opacity: 1;
  transform: translateY(0);
}
.p-hero__title {
  margin-bottom: 64px;
}
.p-hero__title::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -25px;
  width: 200px;
  height: 490px;
  background-color: #1D2B68;
  border-radius: 50px;
  border: 4px solid #837455;
}
@media (max-width: 768px) {
  .p-hero__title::before {
    display: none;
  }
}
.p-hero__title::after {
  content: "";
  position: absolute;
  top: 0;
  right: -50px;
  width: 200px;
  height: 400px;
  background-image: url(../img/text/subtitle2_v3_white.png);
  background-size: 70%;
  opacity: 0;
}
@media (max-width: 768px) {
  .p-hero__title::after {
    display: none;
  }
}
.p-hero__title--main {
  width: 80%;
  margin-bottom: 32px;
}
@media (max-width: 768px) {
  .p-hero__title--main {
    width: 100%;
    margin-bottom: 16px;
  }
}
.p-hero__title--sub1 {
  width: 70%;
}
@media (max-width: 768px) {
  .p-hero__title--sub1 {
    width: 100%;
  }
}
.p-hero__title--sub2 {
  width: 90%;
  display: none;
}
@media (max-width: 768px) {
  .p-hero__title--sub2 {
    margin-left: -5px;
    width: 100%;
    display: inline;
  }
}
@media (max-width: 768px) {
  .p-hero__title {
    margin-bottom: 24px;
    width: 100%;
  }
}
.p-hero__contents {
  display: flex;
  flex-wrap: nowrap;
  flex-direction: row;
  justify-content: space-between;
  gap: 40px;
}
@media (max-width: 768px) {
  .p-hero__contents {
    display: block;
  }
}
.p-hero__message {
  display: flex;
  flex-direction: column;
  flex: 1 1 320px;
  margin-top: 60px;
  margin-left: 32px;
}
@media (max-width: 768px) {
  .p-hero__message {
    margin-left: 8px;
  }
}
.p-hero__lead {
  font-size: 1.1rem;
  letter-spacing: 0.05em;
  font-weight: 500;
  z-index: 0;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
@media (max-width: 768px) {
  .p-hero__lead {
    margin-top: 32px;
  }
}
.p-hero__lead--text {
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: opacity 0.8s ease, transform 0.8s ease;
  color: #837455;
}
.p-hero__lead--text.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.p-hero__lead--text:nth-child(1) {
  transition-delay: 1s;
}
.p-hero__lead--text:nth-child(2) {
  transition-delay: 1s;
}
.p-hero__lead--text:nth-child(3) {
  transition-delay: 1s;
}
.p-hero__lead--text:nth-child(4) {
  transition-delay: 1s;
}
.p-hero__lead--text:nth-child(5) {
  transition-delay: 1s;
}
.p-hero__lead--text:nth-child(6) {
  transition-delay: 1s;
}
.p-hero__lead--text:nth-child(7) {
  transition-delay: 1s;
}
.p-hero__lead--text:nth-child(8) {
  transition-delay: 1s;
}
.p-hero__lead--text:nth-child(9) {
  transition-delay: 1s;
}
.p-hero__lead--text:nth-child(10) {
  transition-delay: 1s;
}
.p-hero__lead--text:nth-child(11) {
  transition-delay: 1s;
}
@media (max-width: 768px) {
  .p-hero__lead--text:nth-child(1) {
    transition-delay: 1s;
  }
  .p-hero__lead--text:nth-child(2) {
    transition-delay: 1s;
  }
  .p-hero__lead--text:nth-child(3) {
    transition-delay: 1s;
  }
  .p-hero__lead--text:nth-child(4) {
    transition-delay: 1s;
  }
  .p-hero__lead--text:nth-child(5) {
    transition-delay: 1s;
  }
  .p-hero__lead--text:nth-child(6) {
    transition-delay: 1s;
  }
  .p-hero__lead--text:nth-child(7) {
    transition-delay: 1s;
  }
  .p-hero__lead--text:nth-child(8) {
    transition-delay: 1s;
  }
  .p-hero__lead--text:nth-child(9) {
    transition-delay: 1s;
  }
  .p-hero__lead--text:nth-child(10) {
    transition-delay: 1s;
  }
  .p-hero__lead--text:nth-child(11) {
    transition-delay: 1s;
  }
}
.p-hero__book {
  position: relative;
  flex: 0 0 350px;
}
.p-hero__book-img {
  margin: 0 auto;
  display: flex;
  box-shadow: 0 0 8px #808080;
  margin-bottom: 20px;
}
@media (max-width: 1023px) {
  .p-hero__book-img {
    max-width: 70%;
    margin-bottom: 20px;
  }
}
.p-hero__book-detail {
  font-size: 0.8rem;
  display: grid;
  grid-template-columns: 60px 1fr;
  row-gap: 6px;
  padding: 16px 0 8px;
  display: none;
}
.p-hero__book-detail dl dt {
  margin: 0;
}
.p-hero__book-detail dl dd {
  margin: 0;
}
@media (max-width: 768px) {
  .p-hero__book-detail {
    display: none;
  }
}
.p-hero__book-prom {
  font-size: 0.9rem;
}
.p-hero__book-achievements-tab {
  display: flex;
  justify-content: center;
  width: 100%;
  height: 140px;
  gap: 8px;
}
@media (min-width: 1024px) {
  .p-hero__book-achievements-tab {
    display: none;
  }
}
.p-hero__book-achievements-pc {
  display: flex;
  justify-content: center;
  width: 100%;
  height: 220px;
  gap: 48px;
}
@media (max-width: 1023px) {
  .p-hero__book-achievements-pc {
    display: none;
  }
}
.p-hero__book-btn {
  display: flex;
  margin: 16px 0 8px;
  width: 100%;
  gap: 24px;
}
@media (max-width: 768px) {
  .p-hero__book-btn {
    justify-content: center;
    align-items: center;
    margin-bottom: 40px;
  }
}

.p-publisher {
  padding: 56px 0 100px;
}

.p-toc {
  padding: 56px 0 100px;
  position: relative;
}
.p-toc__bg {
  position: absolute;
  background-color: #fafbff;
  border-radius: 8px;
  border: 1px solid rgba(0, 0, 0, 0.04);
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -100;
}
.p-toc::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.08) 0 2px, transparent 2px 4px), repeating-linear-gradient(-45deg, rgba(0, 0, 0, 0.02) 0 1px, transparent 1px 3px);
  opacity: 0.5;
  pointer-events: none;
}
.p-toc__list {
  cursor: pointer;
  display: flex;
  flex-direction: column;
}
.p-toc__list summary::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  width: 97%;
  margin: 0 auto;
  background: #1d2b68;
  opacity: 0;
}
.p-toc__list.is-open summary::after {
  opacity: 1;
}
.p-toc__list:hover {
  cursor: pointer;
}
.p-toc__list.is-open {
  height: 100%;
  gap: 0;
}
.p-toc__list--title {
  position: relative;
  font-size: 1.2rem;
  color: #fff;
  display: grid;
  grid-template-columns: 1fr 24px;
  align-items: center;
  cursor: pointer;
  padding: 16px 24px;
  background-color: #1d2b68;
  border-radius: 5px;
}
@media (max-width: 768px) {
  .p-toc__list--title {
    font-size: 1rem;
    padding: 16px 12px;
  }
}
.p-toc__list .icon {
  display: block;
  position: relative;
  width: 24px;
  transform-origin: center 43%;
  transition: transform 0.4s;
  /* アイコンのバーのスタイル */
}
.p-toc__list .icon::before, .p-toc__list .icon::after {
  content: "";
  position: absolute;
  display: block;
  width: 15px;
  height: 3px;
  background-color: #837455;
}
.p-toc__list .icon::before {
  left: 0;
  transform: rotate(45deg);
}
.p-toc__list .icon::after {
  right: 0;
  transform: rotate(-45deg);
}
.p-toc__list--contents {
  font-size: 1rem;
  padding: 0px 48px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  background-color: #f1f3f9;
  margin-bottom: 8px;
  border-radius: 5px;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transform: translateY(6px);
  transition: max-height 0.45s ease, opacity 0.35s ease, transform 0.35s ease;
}
@media (max-width: 768px) {
  .p-toc__list--contents {
    font-size: 0.8rem;
    padding: 0 24px;
  }
}
.p-toc__list--contents li::marker {
  font-size: 1.2em;
  color: #837455;
}
.p-toc__list.is-open .p-toc__list--contents {
  max-height: 2000px;
  padding: 24px 48px;
  opacity: 1;
  transform: translateY(0);
}
@media (max-width: 768px) {
  .p-toc__list.is-open .p-toc__list--contents {
    padding: 24px 32px;
  }
}
.p-toc__list.is-open .icon {
  transform: rotate(180deg);
}
.p-toc__item {
  margin-bottom: 8px;
  font-size: 0.95rem;
}

.p-voices {
  padding: 56px 0 100px;
}
.p-voices-title {
  text-align: left;
}
.p-voices::after {
  background-color: #fff;
  z-index: -10;
}
.p-voices__list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
@media (max-width: 768px) {
  .p-voices__list {
    grid-template-columns: 1fr;
  }
}

.p-voice-card {
  position: relative;
  margin-bottom: 0.2rem;
  padding: 1rem;
  border-left: 10px solid #1d2b68;
  background-color: #f2f2f7;
  color: #212121;
}
.p-voice-card__label {
  font-size: 0.8rem;
  font-weight: 600;
  color: #666;
  margin-bottom: 8px;
  display: none;
}
.p-voice-card__text {
  font-size: 1.2rem;
}

/*
.p-voice-card::before {
  position: absolute;
  right: 5px;
  bottom: 10px;
  width: 40%;
  height: 50%;
  box-shadow: 0 5px 25px #333;
  transform: rotate(4deg);
  z-index: -1;
  content: '';
}
*/
.p-author {
  padding: 56px 0 100px;
  background-color: #fafbff;
}
.p-author__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  align-items: flex-start;
}
@media (max-width: 768px) {
  .p-author__inner {
    flex-direction: column;
  }
}
.p-author__profile {
  flex: 0 0 300px;
}
@media (max-width: 768px) {
  .p-author__profile {
    margin: 0 auto;
  }
}
.p-author__avatar {
  width: 280px;
  height: 280px;
  border-radius: 999px;
}
.p-author__body {
  flex: 1 1 280px;
}
.p-author__name {
  font-size: 1.5rem;
  margin-bottom: 16px;
}
.p-author__role {
  font-size: 1rem;
  color: #666;
  margin-bottom: 4px;
}
.p-author__sns {
  margin-left: -10px;
  margin-bottom: 16px;
  display: flex;
  gap: 4px;
}
.p-author__sns--note {
  width: 55px;
  height: auto;
}
.p-author__sns--x {
  width: 25px;
  height: auto;
  margin-top: 13px;
}
@media (max-width: 768px) {
  .p-author__sns--x {
    width: 25px;
  }
}
.p-author__text {
  font-size: 1rem;
  margin-bottom: 12px;
}
.p-author__company--logo {
  margin-top: 24px;
  width: 200px;
  height: auto;
}

.p-footer {
  background-color: #303030;
}
.p-footer__inner {
  display: flex;
  justify-content: center;
  gap: 12px;
}
.p-footer__copy {
  font-size: 0.8rem;
  color: #fff;
}

.u-link-underline {
  text-decoration: underline;
  text-underline-offset: 0.2em;
}