/* ---------------------------
  variable
----------------------------- */
:root {
  --black: #333333;
  --white: #ffffff;
  --orange: #EA5548;
  --orange-white: #FFE8E6;
  --coral: #EF8465;
  --coral-light: #FCF3F0;
  --blue: #3FA7AC;
  --blue-light: #78C9D5;
  --blue-white: #E1F6F7;
  --yellow: #FFE56D;
  --yellow-light: #FFF3BC;
  --gradient-half: linear-gradient(to right, var(--orange) 50%, var(--blue) 50%);
  --shadow: 8px 8px 8px rgb(0 0 0 / .16);
  --font-primary: var(--black);
  --family-primary: "Noto Sans JP", sans-serif;
  --line-height-tight: 1.2;
  --line-height-snug: 1.4;
  --line-height-default: 1.5;
  --line-height-normal: 1.7;
  --line-height-relaxed: 2;
  --spacing-gutter: clamp(20px, 9.933px + 2.685vw, 40px);
  --leading-trim: calc((1em - 1lh) / 2);
  --radius-full: calc(1px / 0);
}

/* ---------------------------
  icon
----------------------------- */
:root {
  --icon-chevron-bottom: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="28.115" height="16.179" viewBox="0 0 28.115 16.179"><path d="M393.278-235.612,379.659-249.23a1.5,1.5,0,0,1,0-2.121,1.5,1.5,0,0,1,2.121,0l11.5,11.5,11.5-11.5a1.5,1.5,0,0,1,2.121,0,1.5,1.5,0,0,1,0,2.121Z" transform="translate(-379.22 251.79)" fill="black"/></svg>');
}

/* ---------------------------
  CSS Reset
----------------------------- */
* {
  min-inline-size: 0;
}

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

:where(html) {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

:where(body) {
  text-rendering: optimizeSpeed;
  line-height: 1.5;
}

:where(body,
h1,
h2,
h3,
h4,
h5,
h6,
p,
figure,
blockquote,
dl,
dd,
ul,
ol) {
  margin: 0;
}

:where(ul, ol) {
  list-style-type: "";
  padding: unset;
}

:where(a:not([class])) {
  text-decoration-skip-ink: auto;
}

:where(a) {
  text-decoration: none;
}

:where(img, picture) {
  max-width: 100%;
  height: auto;
  display: block;
}

:where(input, button, textarea, select) {
  font: inherit;
}

:where(input[type=text], textarea) {
  font-size: 16px;
}

:where(textarea) {
  field-sizing: content;
}

:where(button, [type=button], [type=reset], [type=submit]) {
  touch-action: manipulation;
}

:where(:any-link,
button,
[type=button],
[type=reset],
[type=submit],
label[for],
select,
summary,
[role=tab],
[role=button]) {
  cursor: pointer;
}

:focus:not(:focus-visible) {
  outline: none;
}

:where(address) {
  font-style: normal;
}

:where(table) {
  border-collapse: collapse;
}

@media (prefers-reduced-motion: reduce) {
  *,
  ::before,
  ::after,
  ::backdrop {
    background-attachment: scroll !important;
    transition-delay: 0s !important;
    transition-duration: 1ms !important;
    animation-duration: 1ms !important;
    animation-delay: 0s !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
  }
}
/* ---------------------------
  base
----------------------------- */
body {
  color: var(--font-primary);
  font-family: var(--family-primary);
  font-size: 16px;
  line-height: var(--line-height-default);
  font-weight: 400;
  overflow-x: clip;
  overflow-wrap: anywhere;
  word-break: normal;
  line-break: strict;
  padding: clamp(10px, -0.81px + 2.751vw, 30px) clamp(10px, -0.81px + 2.751vw, 30px) 0;
  background: var(--gradient-half);
}

a {
  color: var(--font-primary);
}

.body-inner {
  background-color: var(--white);
}

/* ---------------------------
  utility
----------------------------- */
.u-wrapper {
  max-width: calc(1040px + 2 * var(--spacing-gutter));
  margin-inline: auto;
  padding: 0 var(--spacing-gutter);
}

.u-headline {
  text-align: center;
}
.u-headline img, .u-headline picture {
  margin-inline: auto;
}

.u-before-triangle {
  position: relative;
}
.u-before-triangle::before {
  content: "";
  display: block;
  width: clamp(50px, 33.78px + 4.127vw, 80px);
  aspect-ratio: 2/1;
  background-color: var(--white);
  clip-path: polygon(0% 0%, 100% 0%, 50% 100%);
  position: absolute;
  top: 0;
  left: 50%;
  translate: -50% -1px;
}

.u-bg-drops {
  background-image: radial-gradient(rgba(255, 255, 255, 0.25) 25%, transparent 25%), radial-gradient(rgba(255, 255, 255, 0.25) 25%, transparent 25%);
  background-size: 50px 50px;
  background-position: 0 0, 25px 25px;
}
@media (max-width: 640px) {
  .u-bg-drops {
    background-size: 30px 30px;
    background-position: 0 0, 15px 15px;
  }
}

.u-container {
  container-type: inline-size;
}

.u-br-sm-only {
  display: none;
}
@media (max-width: 640px) {
  .u-br-sm-only {
    display: inline;
  }
}

.u-br-sm-none {
  display: inline;
}
@media (max-width: 640px) {
  .u-br-sm-none {
    display: none;
  }
}

.u-br-md-only {
  display: none;
}
@media (max-width: 768px) {
  .u-br-md-only {
    display: inline;
  }
}

.u-br-lg-only {
  display: none;
}
@media (max-width: 1024px) {
  .u-br-lg-only {
    display: inline;
  }
}

.u-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.u-forced-wide {
  margin-inline: calc(50% - 50vi);
}

.u-forced-wide-bg {
  border-image: linear-gradient(var(--_background) 0 0) fill 0//0 100vi;
}

/* ---------------------------
  header
----------------------------- */
.header {
  max-width: 1860px;
  width: 100%;
  margin-inline: auto;
}

.header__text {
  font-size: clamp(10px, 7.84px + 0.55vw, 14px);
  font-weight: 500;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 1em;
  padding-top: clamp(12px, 1.19px + 2.751vw, 32px);
  padding-right: 40px;
  margin-bottom: 1em;
}
@media (max-width: 640px) {
  .header__text {
    flex-direction: column;
    gap: 0;
    padding-left: 1em;
    padding-right: 1em;
    margin-bottom: 0;
  }
}

.header__hero picture, .header__hero img {
  width: 100%;
}

.action {
  display: block;
  width: clamp(120px, 55.13px + 16.506vw, 240px);
  aspect-ratio: 1/1;
  position: fixed;
  bottom: clamp(20px, 0.54px + 4.952vw, 56px);
  right: clamp(20px, 0.54px + 4.952vw, 56px);
  z-index: 1000;
  border-radius: 50%;
  box-shadow: var(--shadow);
  transform-origin: left center;
  transition: scale 0.2s ease-in, opacity 0.2s ease-in, right 0.2s ease-in;
}
@media (max-width: 640px) {
  .action {
    transform-origin: right bottom;
  }
}
.action:focus-visible {
  scale: 1.06;
  opacity: 0.8;
}
@media (any-hover: hover) {
  .action:hover {
    scale: 1.06;
    opacity: 0.8;
  }
}
@media (max-width: 640px) {
  .action.shrink {
    scale: 0.7;
    right: 12px;
  }
}

/* ---------------------------
  footer
----------------------------- */
.footer {
  background-color: var(--white);
  box-shadow: 0 -8px 15px rgba(0, 0, 0, 0.16);
}

.footer-wrapper {
  max-width: 1860px;
  width: 100%;
  margin-inline: auto;
  padding: clamp(32px, 22.27px + 2.476vw, 50px) 0;
  position: relative;
}

.footer-pagetop {
  display: block;
  width: clamp(32px, 21.19px + 2.751vw, 52px);
  position: absolute;
  left: clamp(32px, 22.27px + 2.476vw, 50px);
  bottom: clamp(28px, 13.4px + 3.714vw, 55px);
  z-index: 1000;
}

.footer-company {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px 32px;
}
@media (max-width: 640px) {
  .footer-company {
    flex-direction: column;
    max-width: 214px;
    margin-inline: auto;
  }
}

.footer-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1em;
  margin-top: 1em;
  font-size: clamp(13px, 12.46px + 0.138vw, 14px);
}
@media (max-width: 640px) {
  .footer-meta {
    display: block;
  }
}
@media (max-width: 640px) {
  .footer-meta span {
    display: block;
    text-align: center;
  }
}

/* ---------------------------
  anchor
----------------------------- */
.anchor-section {
  padding-top: 24px;
  padding-bottom: clamp(48px, 35.03px + 3.301vw, 72px);
}

.anchor-head {
  margin-bottom: 20px;
}

.anchor-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(16px, 11.68px + 1.1vw, 24px) 18px;
}
@media (max-width: 640px) {
  .anchor-list {
    grid-template-columns: 1fr;
  }
}

.anchor-list__item {
  display: block;
}
.anchor-list__item a {
  display: block;
  width: fit-content;
  margin-inline: auto;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow);
  transition: opacity 0.2s ease-in-out;
}
.anchor-list__item a:focus-visible {
  opacity: 0.7;
}
@media (any-hover: hover) {
  .anchor-list__item a:hover {
    opacity: 0.7;
  }
}

/* ---------------------------
  feature
----------------------------- */
.feature-section {
  padding: clamp(40px, 27.03px + 3.301vw, 64px) 0;
  background-color: var(--blue-white);
}

.feature-head {
  margin-bottom: clamp(20px, 14.59px + 1.376vw, 30px);
}

.feature-list {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 24px;
}
@media (max-width: 640px) {
  .feature-list {
    flex-direction: column;
  }
}

.feature-list__item {
  width: calc(50% - 12px);
  display: flex;
  align-items: center;
  justify-content: center;
  place-content: center;
  flex-wrap: wrap;
  gap: 0.2em;
  background-color: var(--white);
  border: 3px solid var(--orange);
  border-radius: 15px;
  font-size: 20px;
  font-weight: 500;
  text-align: center;
  line-height: var(--line-height-tight);
  padding: 0.7em 0.5em;
  min-height: 88px;
}
@media (max-width: 640px) {
  .feature-list__item {
    width: 100%;
    flex-direction: column;
  }
}
.feature-list__item .sm {
  font-size: clamp(16px, 13.84px + 0.55vw, 20px);
  font-weight: 500;
}
.feature-list__item .lg {
  display: inline-block;
  font-size: 24px;
  font-weight: 700;
  color: var(--orange);
}
.feature-list__item strong {
  display: inline-block;
  line-height: 1;
  font-size: 39px;
  font-weight: 700;
  color: var(--yellow);
  background-color: var(--orange);
  border-radius: 5px;
  padding: 0.15em 0.3em 0.25em;
  letter-spacing: 0.05em;
}
.feature-list__item--wide {
  width: 100%;
  gap: 0 0.4em;
}
@media (max-width: 640px) {
  .feature-list__item--wide {
    gap: 0.4em;
  }
}
.feature-list__item--wide .sm {
  font-size: clamp(16px, 11.68px + 1.1vw, 24px);
}
.feature-list__item--wide .lg {
  font-size: clamp(24px, 21.84px + 0.55vw, 28px);
}

/* ---------------------------
  intro
----------------------------- */
.intro-section {
  padding: clamp(40px, 18.38px + 5.502vw, 80px) 0 clamp(40px, 27.03px + 3.301vw, 64px);
}

.intro-hgroup {
  margin-bottom: clamp(24px, 15.35px + 2.201vw, 40px);
}

.intro-hgroup__badge {
  margin-bottom: clamp(20px, 13.51px + 1.651vw, 32px);
}
.intro-hgroup__badge img {
  margin-inline: auto;
}

.intro-hgroup__headline {
  margin-bottom: clamp(12px, 5.51px + 1.651vw, 24px);
}

.intro-hgroup__subtitle {
  display: block;
  width: fit-content;
  margin-inline: auto;
  border: 2px solid var(--blue);
  border-radius: 3px;
  text-align: center;
  font-weight: 500;
  color: var(--blue);
  font-size: clamp(12px, 8.76px + 0.825vw, 18px);
  padding: 0.1em 0.8em 0.2em;
}
@media (max-width: 640px) {
  .intro-hgroup__subtitle {
    border-width: 1px;
  }
}

.intro-headline {
  font-size: clamp(22px, 16.59px + 1.376vw, 32px);
  font-weight: 700;
  text-align: center;
  margin-bottom: 1em;
  position: relative;
}
.intro-headline::after {
  content: "";
  display: block;
  width: 100%;
  height: 3px;
  background: var(--gradient-half);
  margin-top: 0.8em;
}

.intro-text {
  font-size: clamp(15px, 13.38px + 0.413vw, 18px);
  font-weight: 500;
  line-height: var(--line-height-relaxed);
}

.intro-embed {
  width: 100%;
  max-width: 771px;
  margin-inline: auto;
  margin-top: clamp(24px, -1.95px + 6.602vw, 72px);
}
.intro-embed iframe {
  display: block;
  width: 100%;
  height: 100%;
  aspect-ratio: 771/429;
}

.intro-hr-head {
  margin-top: clamp(40px, 12.97px + 6.878vw, 90px);
  position: relative;
  z-index: 10;
}

.intro-hr-image {
  margin-top: -100px;
  position: relative;
  z-index: 1;
}
@media (max-width: 640px) {
  .intro-hr-image {
    margin-top: 0;
  }
}
.intro-hr-image picture, .intro-hr-image img {
  margin-inline: auto;
}

.intro-hr-list {
  display: none;
  position: relative;
  z-index: 10;
  margin-top: -60px;
}
@media (max-width: 640px) {
  .intro-hr-list {
    display: block;
  }
}
.intro-hr-list li {
  display: block;
  background-color: var(--blue-light);
  border-radius: var(--radius-full);
}
.intro-hr-list li + li {
  margin-top: 12px;
}
.intro-hr-list img {
  margin-inline: auto;
}

/* ---------------------------
  outline
----------------------------- */
.outline-section {
  padding-top: clamp(32px, 6.05px + 6.602vw, 80px);
  padding-bottom: 40px;
  background-color: var(--yellow-light);
}

.outline-head {
  font-size: clamp(22px, 16.59px + 1.376vw, 32px);
  font-weight: 700;
  text-align: center;
  color: var(--orange);
  margin-bottom: 1em;
  position: relative;
}
.outline-head::after {
  content: "";
  display: block;
  width: 100%;
  height: 3px;
  background: var(--gradient-half);
  margin-top: 0.6em;
}

.outline-layout {
  display: grid;
  grid-template-columns: 1.08fr 1fr;
  gap: 16px;
}
@media (max-width: 640px) {
  .outline-layout {
    grid-template-columns: 1fr;
  }
}
.outline-layout img {
  margin-inline: auto;
}

.outline-layout__text p {
  font-size: clamp(15px, 14.46px + 0.138vw, 16px);
  font-weight: 500;
  line-height: var(--line-height-relaxed);
  margin-bottom: 1.5em;
}

/* ---------------------------
  course
----------------------------- */
.course-section {
  padding: clamp(56px, 37.62px + 4.677vw, 90px) 0 clamp(56px, 47.35px + 2.201vw, 72px);
}
.course-section::before {
  background-color: var(--yellow-light);
}

.course-head {
  margin-bottom: 24px;
}

.course-text {
  font-size: clamp(15px, 13.38px + 0.413vw, 18px);
  font-weight: 500;
  line-height: var(--line-height-relaxed);
  margin-top: 2.5em;
  margin-bottom: 2.5em;
}
@media (max-width: 640px) {
  .course-text {
    margin-bottom: 64px;
  }
}
.course-text::after {
  content: "";
  display: block;
  margin-inline: auto;
  mask: var(--icon-chevron-bottom) no-repeat center/contain;
  aspect-ratio: 2/1;
  inline-size: 3.2em;
  background-color: var(--blue-light);
  margin-top: 2em;
}

.course-child-section + .course-child-section {
  margin-top: 72px;
}
@media (max-width: 640px) {
  .course-child-section + .course-child-section {
    margin-top: 88px;
  }
}

.course-child-hgroup {
  border-radius: clamp(30px, 22.43px + 1.926vw, 44px);
  position: relative;
  margin-bottom: clamp(24px, 15.35px + 2.201vw, 40px);
}
.course-child-hgroup p {
  width: clamp(100px, 70.81px + 7.428vw, 154px);
  position: absolute;
  left: 50px;
  top: 50%;
  translate: 0 -50%;
  z-index: 10;
}
@media (max-width: 768px) {
  .course-child-hgroup p {
    left: 20px;
  }
}
@media (max-width: 640px) {
  .course-child-hgroup p {
    left: 0;
    top: 0;
    translate: -14px -50%;
  }
}
.course-child-hgroup h3 {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  font-size: clamp(25px, 20.13px + 1.238vw, 34px);
  font-weight: 900;
  color: var(--white);
  padding: 0.5em;
  padding-left: 222px;
}
@media (max-width: 768px) {
  .course-child-hgroup h3 {
    padding-left: 160px;
  }
}
@media (max-width: 640px) {
  .course-child-hgroup h3 {
    padding: 0.6em 0.5em 0.7em;
    flex-direction: column;
    justify-content: center;
    gap: 0.2em;
    text-align: center;
    line-height: var(--line-height-tight);
  }
}
.course-child-hgroup h3 span {
  font-size: clamp(15px, 11.22px + 0.963vw, 22px);
  font-weight: 700;
}
@media (max-width: 640px) {
  .course-child-hgroup h3 span {
    display: inline-block;
  }
}
.course-child-hgroup--primary {
  background-color: var(--coral);
}
.course-child-hgroup--secondary {
  background-color: var(--blue);
}
.course-child-hgroup--tertiary {
  background-color: var(--orange);
}
.course-child-hgroup--quaternary {
  background-color: var(--blue-light);
}

.course-child-layout {
  display: grid;
  grid-template-columns: 1fr 2.1fr;
  align-items: flex-end;
  gap: 16px 56px;
}
@media (max-width: 640px) {
  .course-child-layout {
    grid-template-columns: 1fr;
  }
}

.course-image img {
  margin-inline: auto;
}
@media (max-width: 640px) {
  .course-image img {
    width: 75%;
  }
}

.course-detail__hgroup p {
  font-size: 20px;
  font-weight: 700;
  color: var(--blue);
}
@media (max-width: 640px) {
  .course-detail__hgroup p {
    text-align: center;
    margin-bottom: 0.2em;
  }
}
.course-detail__hgroup h4 {
  font-size: clamp(22px, 17.68px + 1.1vw, 30px);
  font-weight: 900;
  color: var(--orange);
  text-decoration: underline;
  text-underline-offset: 0.2em;
  line-height: var(--line-height-snug);
}
@media (max-width: 640px) {
  .course-detail__hgroup h4 {
    text-align: center;
  }
}

.course-detail__subtitle {
  margin-top: 1em;
  font-size: clamp(16px, 14.92px + 0.275vw, 18px);
  font-weight: 500;
  color: var(--orange);
}
@media (max-width: 640px) {
  .course-detail__subtitle {
    text-align: center;
  }
}

.course-detail__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0 1em;
  padding-left: 0.5em;
  border-left: 5px solid var(--blue);
  margin-top: 1.2em;
}
@media (max-width: 640px) {
  .course-detail__list {
    justify-content: center;
    gap: 0 0.5em;
    padding-left: 0;
    border-left: none;
    border-top: 3px solid var(--blue);
    padding-top: 1em;
  }
}
.course-detail__list li {
  width: fit-content;
  font-size: clamp(14px, 12.92px + 0.275vw, 16px);
  font-weight: 500;
}
@media (max-width: 640px) {
  .course-detail__list li {
    text-align: center;
  }
}
.course-detail__list li:first-child {
  width: 100%;
}
.course-detail__list span {
  color: var(--blue);
}

.course-detail__content {
  border-radius: 10px;
  padding: 1em 1.5em;
  margin-top: 1.2em;
}
@media (max-width: 640px) {
  .course-detail__content {
    padding: 20px;
  }
}
.course-detail__content h5 {
  font-size: clamp(13px, 11.92px + 0.275vw, 15px);
  font-weight: 700;
  line-height: 1.6;
}
.course-detail__content ul {
  counter-reset: number;
}
.course-detail__content li {
  font-size: clamp(13px, 11.92px + 0.275vw, 15px);
  font-weight: 400;
  position: relative;
  padding-left: 1.1em;
  line-height: 1.6;
}
.course-detail__content li::before {
  position: absolute;
  counter-increment: number;
  content: counter(number);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 400;
  font-size: clamp(10px, 8.92px + 0.275vw, 12px);
  border-radius: 50%;
  top: 0.4em;
  left: 0;
  width: clamp(13px, 11.92px + 0.275vw, 15px);
  height: clamp(13px, 11.92px + 0.275vw, 15px);
}
.course-detail__content--primary {
  background-color: var(--coral-light);
}
.course-detail__content--primary h5 {
  color: var(--coral);
}
.course-detail__content--primary li::before {
  background-color: var(--coral);
}
.course-detail__content--secondary {
  background-color: var(--blue-white);
}
.course-detail__content--secondary h5 {
  color: var(--blue);
}
.course-detail__content--secondary li::before {
  background-color: var(--blue);
}

.course-child-notice {
  font-size: clamp(20px, 16.22px + 0.963vw, 27px);
  font-weight: 900;
  padding-top: 0.5em;
  margin-top: 1em;
  text-align: center;
}
.course-child-notice span {
  color: var(--orange);
}
.course-child-notice--primary {
  border-top: 2px solid var(--coral);
}
.course-child-notice--secondary {
  border-top: 2px solid var(--blue);
}
.course-child-notice--tertiary {
  border-top: 2px solid var(--orange);
}
.course-child-notice--quaternary {
  border-top: 2px solid var(--blue-light);
}

/* ---------------------------
  schedule
----------------------------- */
.schedule-section {
  padding-top: clamp(0px, -12.97px + 3.301vw, 24px);
  padding-bottom: clamp(32px, 16.86px + 3.851vw, 60px);
  background-color: var(--yellow-light);
}

.schedule-head {
  translate: 0 50%;
}
.schedule-head img {
  width: clamp(284px, 202.37px + 20.77vw, 435px);
}

.schedule-chart {
  background-color: var(--white);
  border-radius: 30px;
  padding: 40px 32px;
}
@media (max-width: 640px) {
  .schedule-chart {
    padding: 48px 0 32px;
    overflow-x: auto;
    border-radius: 0;
    width: calc(100% + 2 * var(--spacing-gutter));
    margin-left: calc(-1 * var(--spacing-gutter));
    margin-right: calc(-1 * var(--spacing-gutter));
  }
}
@media (max-width: 640px) {
  .schedule-chart img {
    width: 748px;
    max-width: inherit;
    padding: 0 24px;
  }
}

/* ---------------------------
  user
----------------------------- */
.user-section {
  padding: clamp(32px, 16.86px + 3.851vw, 60px) 0;
  background-color: var(--blue-white);
}

.user-notice {
  text-align: right;
  margin-top: 1em;
  font-size: clamp(13px, 11.38px + 0.413vw, 16px);
}

.user-notice + .voice-grid {
  margin-top: 1em;
}

.voice-head {
  padding: clamp(10px, 7.3px + 0.688vw, 15px);
  border-radius: var(--radius-full);
  position: relative;
}
.voice-head img {
  width: clamp(200px, 136.75px + 16.094vw, 317px);
}
.voice-head::after {
  content: "";
  display: block;
  width: clamp(16px, 5.19px + 2.751vw, 36px);
  aspect-ratio: 36/19;
  clip-path: polygon(0% 0%, 100% 0%, 50% 100%);
  position: absolute;
  bottom: 0;
  left: 50%;
  translate: -50% 98%;
}
.voice-head--primary {
  background-color: var(--blue);
}
.voice-head--primary::after {
  background-color: var(--blue);
}
.voice-head--secondary {
  background-color: var(--orange);
}
.voice-head--secondary::after {
  background-color: var(--orange);
}

.voice-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px 40px;
  margin-top: clamp(20px, 4.86px + 3.851vw, 48px);
}
@media (max-width: 768px) {
  .voice-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 640px) {
  .voice-grid {
    display: flex;
    overflow-x: auto;
    gap: 16px;
    width: calc(100% + 2 * var(--spacing-gutter));
    margin-left: calc(-1 * var(--spacing-gutter));
    margin-right: calc(-1 * var(--spacing-gutter));
    padding: 0 var(--spacing-gutter);
  }
}

.voice-grid__item {
  background-color: var(--white);
  border-radius: 12px;
  padding: 20px clamp(24px, 21.84px + 0.55vw, 28px) 30px;
}
@media (max-width: 640px) {
  .voice-grid__item {
    width: 240px;
    min-width: 240px;
  }
}
.voice-grid__item h3 {
  font-size: clamp(20px, 18.92px + 0.275vw, 22px);
  font-weight: 700;
  color: var(--blue);
  text-align: center;
  margin-bottom: 0.8em;
}
.voice-grid__item img {
  margin-inline: auto;
  width: clamp(100px, 70.81px + 7.428vw, 154px);
}
.voice-grid__item h4 {
  font-size: clamp(16px, 14.92px + 0.275vw, 18px);
  font-weight: 700;
  line-height: var(--line-height-snug);
  text-align: center;
  margin-top: 1em;
}
.voice-grid__item p {
  font-size: clamp(13px, 11.92px + 0.275vw, 15px);
  line-height: var(--line-height-normal);
  border-top: 2px solid var(--blue);
  padding-top: 1em;
  margin-top: 1.2em;
}

/* ---------------------------
  student
----------------------------- */
.student-section {
  padding: clamp(32px, 16.86px + 3.851vw, 60px) 0 clamp(32px, -10.17px + 10.729vw, 110px);
  background-color: var(--orange-white);
}
.student-section .voice-grid__item h3 {
  color: var(--orange);
}
.student-section .voice-grid__item p {
  border-color: var(--orange);
}

.js-show {
  position: relative;
  opacity: 0;
  top:-20px;
  transition: top 1s ease,opacity 1s ease;
}

.js-show.is-active {
  top:0px;
  opacity: 1;
}

.anchor-list__item:nth-of-type(2n+1).js-show {
  position: relative;
    opacity: 0;
    top:-20px;
    transition: top 1s ease 0.2s,opacity 1s ease 0.2s;
}

.anchor-list__item:nth-of-type(2n+1).js-show.is-active {
  top:0px;
  opacity: 1;
}

.anchor-list__item:nth-of-type(2n).js-show {
  position: relative;
      opacity: 0;
      top:-20px;
      transition: top 1s ease 0.4s,opacity 1s ease  0.4s;
}

.anchor-list__item:nth-of-type(2n).js-show.is-active {
  top:0px;
  opacity: 1;
}

@media (max-width: 640px) {
  .anchor-list__item:nth-of-type(2n+1).js-show {
    transition: top 1s ease,opacity 1s ease;
  }
  .anchor-list__item:nth-of-type(2n).js-show {
    transition: top 1s ease,opacity 1s ease;
  }
}

.voice-grid__item:nth-of-type(3n+1).js-show {
  position: relative;
    opacity: 0;
    top:-20px;
    transition: top 1s ease 0.2s,opacity 1s ease 0.2s;
}

.voice-grid__item:nth-of-type(3n+1).js-show.is-active {
  top:0px;
  opacity: 1;
}

.voice-grid__item:nth-of-type(3n+2).js-show {
  position: relative;
      opacity: 0;
      top:-20px;
      transition: top 1s ease 0.4s,opacity 1s ease  0.4s;
}

.voice-grid__item:nth-of-type(3n+2).js-show.is-active {
  top:0px;
  opacity: 1;
}

.voice-grid__item:nth-of-type(3n).js-show {
  position: relative;
      opacity: 0;
      top:-20px;
      transition: top 1s ease 0.6s,opacity 1s ease  0.6s;
}

.voice-grid__item:nth-of-type(3n).js-show.is-active {
  top:0px;
  opacity: 1;
}

@media (max-width: 640px) {
  .schedule-chart:after {
    content: "横スワイプで全体を見ることができます。";
    font-size: 14px;
    top: 10px;
    position: relative;
    left: 10px;
  }
  .voice-grid{
    position: relative;
    padding-bottom: 40px;
  }
  .voice-grid:after {
    content: "横スワイプで全体を見ることができます。";
    font-size: 14px;
    position: absolute;
    bottom: 10px;
    left: 10px;
  }
}