/* ========================================
   カラー変数 / サイズ変数
======================================== */
:root {
  --color-black: #171718;
  --color-blue: #235DCA;
  --color-lightblue: #CBDDFF;
  --color-paleblue: #DFF2FD;
  --color-orange: #FF8229;
  --color-gray: #EEEEEE;
  --color-white: #ffffff;

  /* 英数字: Quicksand / 本文: Noto Sans JP / 見出し: Zen Maru Gothic */
  --font-base: "Noto Sans JP", sans-serif;
  --font-heading: "Zen Maru Gothic", sans-serif;
  --font-en: "Quicksand", sans-serif;

  --section-max: 87.5rem;
  --section-radius: 2.5rem;
  --header-height: 3.75rem;
  --fv-height-pc: 37rem;
  --fv-width-pc: 90rem;
}

@media screen and (min-width: 768px) {
  :root {
    --header-height: 5.5rem;
  }
}

/* ========================================
   リセット / ベース
======================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  position: relative;
  font-family: var(--font-base);
  font-size: clamp(1rem, 4vw, 1.125rem);
  font-weight: 500;
  color: var(--color-black);
  background-color: var(--color-white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

body::before,
body::after {
  content: "";
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

body::before {
  background-image: url('../media/images/bg_shape_pc.svg');
  background-size: 100%;
  background-position: center -60vw; /* 配置の基点 */
  background-repeat: repeat-y;
  z-index: -100;
}

body::after {
  background-color: rgba(255, 255, 255, 0.33);
  backdrop-filter: blur(30px);
  z-index: -50;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
}

body.is-menu-open {
  overflow: hidden;
}

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

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

ul {
  list-style: none;
}

button {
  border: none;
  background: none;
  cursor: pointer;
  font: inherit;
}

.pc-only {
  display: none!important;
}

.sp-only {
  display: block!important;
}

@media screen and (min-width: 768px) {
  .pc-only {
    display: block!important;
  }

  .sp-only {
    display: none!important;
  }
}

.color-blue {
  color: var(--color-blue);
}

.fw-bold {
  font-weight: 600;
}

/* ========================================
   共通：リンクボタン
   Main Blue / Orange の二通り
   右端に「＞」
======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 2.5em;
  width: fit-content;
  min-width: 15rem;
  margin: 0 auto;
  padding: 0.9em 2.25em;
  border-radius: 999rem;
  font-size: clamp(0.9375em, 3.75vw, 1.25rem);
  font-weight: 700;
  line-height: 1.4;
  color: var(--color-white);
  text-align: left;
  transition: filter 0.2s ease, transform 0.2s ease;
}

.btn::after {
  content: "";
  display: inline-block;
  width: .75rem;
  height: 1.25rem;
  background: url(../media/images/icons/arrow.svg) no-repeat center / contain ;
  flex-shrink: 0;
}

.btn:hover {
  filter: brightness(1.25);
}

.btn--blue {
  background-color: var(--color-blue);
}

.btn--orange {
  background-color: var(--color-orange);
}

@media screen and (min-width: 768px) {
  .btn {
    gap: 1em;
    line-height: 1.2;
  }
}

/* ========================================
   共通：セクション
======================================== */
.section {
  position: relative;
  width: 100%;
  max-width: var(--section-max);
  margin-inline: auto;
  margin-bottom: 1.75rem;
  background-color: rgb(255, 255, 255, 0.6);
  border-radius: var(--section-radius);
  box-shadow: 0 0 10px rgb(0 65 188 / 0.05);
  overflow: hidden;
}

.section__inner {
  padding: 3rem 1.25rem;
}

@media (max-width: 767px) {
  .section__inner--small {
    padding: 3rem .75rem;
  }
  
  .section__inner--zero {
    padding: 3rem 0;
  }
}

@media screen and (min-width: 768px) {
  .section::before {
    position: absolute;
    top: 0.5rem;
    left: 50%;
    transform: translateX(-50%);
    display: inline-block;
    font-size: min(12vw, 8rem);
    color: var(--color-lightblue);
    font-weight: 700;
    font-family: var(--font-en);
    text-align: center;
    white-space: nowrap;
    letter-spacing: 0.02em;
    line-height: 1;
    opacity: 0.2;
    z-index: 100;
    pointer-events: none;
  }

  .section__inner {
    padding: 4.5rem min(4.5vw, 3.75rem);
  }
}

/* 共通：セクションタイトル（Main Blue） */
.section__title {
  position: relative;
  width: fit-content;
  margin: 0 auto 2.75rem;
  font-family: var(--font-heading);
  color: var(--color-blue);
  font-size: clamp(1.75rem, 7vw, 2.5rem);
  font-weight: 700;
  text-align: center;
  line-height: 1.4;
  letter-spacing: 0.04em;
}

.section__title::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  border: 2px dashed var(--color-blue);
  transform: skewX(8deg);
  z-index: 1;
}

.section__title span {
  display: block;
  padding: 0.5em 1em;
}

.section__title span::before,
.section__title span::after {
  content: "";
  position: absolute;
  display: block;
  padding: 1.25rem;
  background-position: center;
  background-size: contain;
  background-repeat: no-repeat;
  background-color: #ffffff;
  border-top: 4px solid var(--color-white);
  border-bottom: 4px solid var(--color-white);
  z-index: 10;
}

.section__title span::before {
  top: -0.25rem;
  left: -1.25rem;
}

.section__title span::after {
  bottom: -0.25rem;
  right: -1.25rem;
}

@media screen and (min-width: 768px) {
  .section__title {
    margin-bottom: 4rem;
    line-height: 1.5;
  }

  .section__title::before { 
    transform: skewX(18deg);
  }
  
}

/* ========================================
   ヘッダー
======================================== */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: #ffffffc7;
  /* background-color: var(--color-white); */
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: calc(100% - 1rem);
  height: var(--header-height);
  margin-inline: auto;
  padding-inline: 0.75rem;
}

.header__logo {
  flex-shrink: 0;
  display: block;
  width: clamp(14rem, 70vw, 20rem);
  z-index: 1051;
}

.header__logo img {
  width: 100%;
  height: auto;
  display: block;
}

.header__nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-left: auto;
}

.header__nav-list {
  display: flex;
  align-items: center;
  gap: 1.125rem;
}

.header__nav-list a {
  font-weight: 600;
  white-space: nowrap;
  transition: color 0.2s ease;
}

.header__nav-list a:hover {
  color: var(--color-blue);
}

.header__nav-list a[target="_blank"]::after {
  content: "";
  display: inline-block;
  width: 0.8em;
  height: 0.8em;
  margin-left: 0.35em;
  vertical-align: -0.05em;
  mask-image: url('../media/images/icons/link.svg');
  -webkit-mask-image: url('../media/images/icons/link.svg');
  mask-size: contain;
  -webkit-mask-size: contain;
  mask-repeat: no-repeat;
  -webkit-mask-repeat: no-repeat;
  mask-position: center;
  -webkit-mask-position: center;
  background-color: currentColor;
}

/* ハンバーガー（SPのみ表示） */
.header__hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  z-index: 1100;
  width: 1.25rem;
  height: 1rem;
  flex-shrink: 0;
}

.header__hamburger-line {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 100%;
  height: 0.125rem;
  background-color: var(--color-blue);
  border-radius: 0.0625rem;
  transition: transform 0.3s ease, opacity 0.3s ease, top 0.3s ease;
}

/* × に変形 */
.header__hamburger.is-open .header__hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.header__hamburger.is-open .header__hamburger-line:nth-child(2) {
  opacity: 0;
}

.header__hamburger.is-open .header__hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* SPナビ：全画面オーバーレイ */
@media (max-width: 1199px) {
  .header__hamburger {
    display: flex;
  }

  .header__nav {
    position: fixed;
    inset: 0;
    z-index: 1050;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 2rem;
    margin: 0;
    padding: 6rem 1rem 3rem;
    background-color: rgba(223, 242, 253, 0.8);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.3s ease, visibility 0.3s ease;
  }

  .header__nav.is-open {
    opacity: 1;
    backdrop-filter: blur(8px);
    visibility: visible;
    pointer-events: auto;
  }

  .header__nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .header__nav-list li {
    border-bottom: 0.0625rem dashed var(--color-blue);
  }

  .header__nav-list a {
    display: block;
    padding: 1.5rem 0 1.5rem 1.25rem;
    font-size: 1rem;
    color: var(--color-blue);
  }

  .header__nav-list a::before {
    content: "";
    display: inline-block;
    width: 7px;
    height: 12px;
    margin-right: 1rem;
    mask-image: url('../media/images/icons/arrow.svg');
    -webkit-mask-image: url('../media/images/icons/arrow.svg');
    mask-repeat: no-repeat;
    mask-size: contain;
    background-color: var(--color-blue); 
  }

  .header__seminar-btn {
    display: none!important;
  }
}

@media screen and (min-width: 1200px) {
  .header__logo {
    width: clamp(15rem, 16vw, 19rem);
  }

  .header__nav {
    gap: clamp(0.75rem, 1.5vw, 2rem);
  }

  .header__nav-list {
    gap: clamp(0.75rem, 1.4vw, 2rem);
  }

  .header__nav-list a {
    font-size: clamp(0.875rem, 0.9vw, 1rem);
  }

  .header__seminar-btn {
    display: flex!important;
    min-width: 0;
    gap: 0.5rem;
    padding: 0.65em 0.95em;
    font-size: clamp(0.6875rem, 0.75vw, 0.8125rem);
    border-radius: .5rem;
    white-space: nowrap;
    line-height: 1.2;
  }

  .header__seminar-btn::before {
    content: "";
    display: inline-block;
    width: 2em;
    height: 2em;
    margin-bottom: .2rem;
    background: url(../media/images/icons/date-icon.svg) center / contain no-repeat;
  }
  
  .header__seminar-btn::after {
    width: 0.615em;
    height: 1.23em;
  }
}

/* ========================================
   ファーストビュー
======================================== */
.fv {
  position: relative;
  width: 100%;
  background: url(../media/images/fv_curve_sp.svg) center bottom 4.5vh no-repeat;
  background-size: 100%;
  overflow: hidden;
}

.fv__inner {
  position: relative;
  padding: 0 1.5rem;
  width: 100%;
  max-width: 40rem;
  margin-inline: auto;
  height: auto;
  max-height: 52rem;
  aspect-ratio: 1 / 1.567;
  z-index: 1;
}


.fv__circle {
  position: absolute;
  top: 0;
  right: min(-8vw, -2rem);
  display: flex;
  justify-content: center;
  align-items: center;
  width: clamp(3.875rem, 18vw, 5.5rem);
  height: clamp(3.875rem, 18vw, 5.5rem);
  padding-bottom: 0.35rem;
  background-color: #E8204F;
  color: var(--color-white);
  border-radius: 50%;
  font-size: clamp(0.75rem, 3vw, 0.9rem);
  font-weight: 600;
  line-height: 1.2;
  text-align: center;
  transform: rotate(15deg);
  z-index: 11;
}

.fv__copy {
  position: relative;
  width: fit-content;
  padding: 4vh 0;
  font-weight: 500;
  z-index: 10;
}

.fv__copy h1 {
  margin-bottom: 0.5em;
  font-size: clamp(2rem, 10vw, 3rem);
  font-family: var(--font-base);
  line-height: 1.3;
}

.fv__copy h1 > span:nth-of-type(2) {
  margin: 0 -0.5em;
}

.fs-large {
  font-size: clamp(2.5rem, 12.5vw, 4rem);
}

.fv__copy > p {
  font-size: clamp(1rem, 4vw, 1.25rem);
  line-height: 1.8;
}

@media (min-width: 768px) {
  .fv {
    background: url(../media/images/fv_curve_pc.svg) center bottom 12vh no-repeat;
    background-size: 100%;
  }

  .fv__inner {
    width: 100%;
    max-width: 68rem; 
    height: var(--fv-height-pc);
    margin: 0 auto;
    padding-top: 1.25rem;
  }

  .fv__copy {
    margin-bottom: 1.5rem;
  }
  
  .fv__copy > p {
    line-height: 1.6;
  }

  .fv__btnArea {
    display: flex !important;
    gap: 1.5rem;
    width: fit-content;
  }

  .fv__btnArea .btn {
    padding: 1.25rem;
    font-size: 1rem;
  }
}

.fv__images > * {
  position: absolute;

}

.fv__images img:nth-of-type(1) {
  top: min(23vh, 10rem);
  left: 53vw;
  width: clamp(9rem, 45vw, 14.5rem);
  transform: rotate(8deg);
  z-index: 9;
}

.fv__images img:nth-of-type(2) {
  bottom: 10vw;
  right: 14vw;
  width: clamp(5rem, 25vw, 8.5rem);
  z-index: 9;
}

.fv__images img:nth-of-type(3) {
  top: min(15vh, 6.75rem);
  right: 6vw;
  width: clamp(3rem, 15vw, 5rem);
  transform: rotate(10deg);
  z-index: 1;
}

.fv__images img:nth-of-type(4),
.fv__images img:nth-of-type(8) {
  display: none;
}

.fv__images img:nth-of-type(5) {
  bottom: 6vh;
  left: 36vw;
  width: clamp(4.25rem, 21.25vw, 6rem);
  transform: rotate(-32deg);
  z-index: 1;
}

.fv__images img:nth-of-type(6) {
  bottom: 6.5vh;
  left: 6vw;
  width: clamp(3rem, 15vw, 4.5rem);
  transform: rotate(-4deg);
  z-index: 1;
}

.fv__images img:nth-of-type(7) {
  bottom: 16.5vh;
  left: 23vw;
  width: clamp(2.375rem, 11.875vw, 3.75rem);
  z-index: 1;
}

.fv__images__dot-square,
.fv__images__dot-circle {
  background-color: var(--color-lightblue);
  -webkit-mask-image: url(../media/images/dot_pt.png);
  mask-image: url(../media/images/dot_pt.png);
  z-index: 0;
}

.fv__images__dot-square {
  top: -3vh;
  left: 0;
  width: 19vw;
  height: 30vw;
  -webkit-mask-size: 10px;
  mask-size: 10px;
}

.fv__images__dot-circle {
  bottom: 21vh;
  right: 41vw;
  width: 16vw;
  height: 16vw;
  border-radius: 50%;
  -webkit-mask-size: 7px;
  mask-size: 7px;
  transform: rotate(45deg);
}

.fv__images__line-circle {
  top: min(15vh, 6.75rem);
  right: -13vw;
  display: block;
  width: 32vw;
  height: 32vw;
  border: 1px solid var(--color-lightblue);
  border-radius: 50%;
  z-index: 0;
}

.fv__images__wave {
  background: url(../media/images/fv_wave.svg) top center no-repeat;
  background-size: contain;
}

.fv__images__wave:nth-of-type(5) {
  top: 2.5vh;
  right: 20vw;
  width: 12.5vw;
  height: 6.25vw;
}

.fv__images__wave:nth-of-type(6) {
  bottom: 8vh;
  left: -1vw;
  width: 15vw;
  height: 7.5vw;
  transform: rotate(180deg);
}

@media screen and (min-width: 768px) {
  .fv__images img:nth-of-type(1) {
    top: 9rem;
    left: unset;
    right: 16vw;
    transform: rotate(0deg);
  }

  .fv__images img:nth-of-type(2) {
    bottom: 8rem;
    right: 4.5vw;
  }

  .fv__images img:nth-of-type(3) {
    top: 2rem;
    right: 27.5vw;
    transform: rotate(0deg);
  }

  .fv__images img:nth-of-type(4) {
    display: block;
    width: 4.75rem;
    top: 4rem;
    right: 10vw;
    z-index: 1;
  }

  .fv__images img:nth-of-type(5) {
    bottom: 20rem;
    left: unset;
    right: -3.2vw;
    transform: rotate(0deg);
  }

  .fv__images img:nth-of-type(6) {
    bottom: 19rem;
    left: unset;
    right: 33.75vw;
    transform: rotate(0deg);
  }

  .fv__images img:nth-of-type(7) {
    bottom: 5.875rem;
    left: unset;
    right: 23vw;
    transform: rotate(0deg);
  }

  .fv__images img:nth-of-type(8) {
    bottom: 7rem;
    right: -0.25vw;
    width: 3rem;
  }

  .fv__images__dot-square,
  .fv__images__dot-circle {
    background-color: var(--color-lightblue);
    -webkit-mask-image: url(../media/images/dot_pt.png);
    mask-image: url(../media/images/dot_pt.png);
    z-index: 0;
  }

  .fv__images__dot-square:nth-of-type(1) {
    top: 4.25rem;
    left: -11rem;
    width: 10rem;
    height: 7.5rem;
  }

  .fv__images__dot-square:nth-of-type(2) {
    top: max(29rem, 75%);
    left: 46%;
    width: 8.5rem;
    height: 5.5rem;
    z-index: -1;
  }

  .fv__images__dot-circle {
    top: 1.5rem;
    bottom: unset;
    right: 30.75vw;
    width: 7rem;
    height: 7rem;
    -webkit-mask-size: 9px;
    mask-size: 9px;
  }

  .fv__images__line-circle {
    top: 3.5rem;
    right: 1.75rem;
    width: 10rem;
    height: 10rem;
  }

  .fv__images__wave:nth-of-type(5) {
    top: 2rem;
    right: -6vw;
    width: 4.25rem;
    height: 2.375rem;
  }

  .fv__images__wave:nth-of-type(6) {
    bottom: 11vw;
    left: -5vw;
    width: 4.25rem;
    height: 2.375rem;
    z-index: -1;
  }
}

@media screen and (min-width: 1440px) {
  .fv__inner {
    width: clamp(68rem, calc(100vw - 22rem), 78rem);
    height: clamp(37rem, calc(55vw - 12.5rem), 42rem);
  }
}

@media screen and (min-width: 1280px) {
  .fv__circle {
    top: 0;
    left: -7rem;
    right: auto;
    width: 6rem;
    height: 6rem;
    font-size: 1rem;
    padding-bottom: 0.5rem;
    transform: rotate(-11deg);
  }
}

@media screen and (min-width: 1600px) {
  .fv__copy {
    margin-top: 2rem;
  }

  .fv__images img:nth-of-type(1) {
    right: 11rem;
  }

  .fv__images img:nth-of-type(2) {
    right: 0rem;
  }

  .fv__images img:nth-of-type(3) {
    right: 22.5rem;
  }

  .fv__images img:nth-of-type(4) {
    right: 5rem;
  }

  .fv__images img:nth-of-type(5) {
    right: -6rem;
  }

  .fv__images img:nth-of-type(6) {
    right: 28rem;
  }

  .fv__images img:nth-of-type(7) {
    right: 17.5rem;
  }

  .fv__images img:nth-of-type(8) {
    right: -4.5rem;
  }

  .fv__images__dot-circle {
    right: 25.5rem;
  }

  .fv__images__wave:nth-of-type(5) {
    right: -8rem;
  }

  .fv__images__wave:nth-of-type(6) {
    left: -10rem;
  }
}

@media (min-width: 768px) and (max-width: 1279px) {
  .fv__inner {
    width: clamp(48rem, calc(62.5vw + 18rem), 68rem);
    height: clamp(30rem, calc(40.625vw + 4.5rem), 37rem);
  }

  .fv__circle {
    top: -1rem;
    right: clamp(-0.75rem, calc(0.5vw - 0.5rem), 0.25rem);
    width: clamp(5rem, 7.5vw, 6rem);
    height: clamp(5rem, 7.5vw, 6rem);
    font-size: clamp(0.85rem, 1.25vw, 1rem);
  }

  .fv__copy > h1 {
    font-size: clamp(2rem, calc(3.125vw + 0.5rem), 3rem);
  }

  .fv__copy > p {
    font-size: clamp(1rem, calc(0.78vw + 0.625rem), 1.25rem);
  }

  .fv__btnArea .btn {
    padding: 0.9em 1.1em;
    font-size: clamp(0.875rem, calc(0.39vw + 0.68rem), 1rem);
  }

  .fv__images img:nth-of-type(1) {
    width: clamp(9rem, calc(17.1875vw + 12px), 14.5rem);
    right: clamp(20vw, 24vw, 27vw);
  }

  .fv__images img:nth-of-type(2) {
    width: clamp(5rem, calc(10.9375vw - 4px), 8.5rem);
    right: clamp(10vw, 13vw, 16vw);
  }

  .fv__images img:nth-of-type(3) {
    width: clamp(3rem, 6.25vw, 5rem);
    right: clamp(31vw, 35vw, 38vw);
  }

  .fv__images img:nth-of-type(4) {
    width: clamp(3.5rem, calc(3.9vw + 26px), 4.75rem);
    right: clamp(18vw, 22vw, 25vw);
  }

  .fv__images img:nth-of-type(5) {
    width: clamp(4.25rem, calc(5.46875vw + 26px), 6rem);
    right: clamp(3vw, 6vw, 9vw);
  }

  .fv__images img:nth-of-type(6) {
    width: clamp(3rem, calc(4.6875vw + 12px), 4.5rem);
    right: clamp(36vw, 40vw, 44vw);
  }

  .fv__images img:nth-of-type(7) {
    width: clamp(2.375rem, calc(4.296875vw + 5px), 3.75rem);
    right: clamp(26vw, 29vw, 32vw);
  }

  .fv__images img:nth-of-type(8) {
    width: clamp(2rem, calc(3.125vw + 8px), 3rem);
    right: clamp(4vw, 7vw, 10vw);
  }

  .fv__images__dot-square {
    top: 1rem;
    left: clamp(-4rem, -4vw, -2rem);
    width: clamp(6rem, 8vw, 8rem);
    height: clamp(4.5rem, 6vw, 6rem);
  }

  .fv__images__dot-circle {
    top: 1.5rem;
    right: clamp(34vw, 38vw, 42vw);
    width: clamp(4.5rem, 6.5vw, 6rem);
    height: clamp(4.5rem, 6.5vw, 6rem);
  }

  .fv__images__line-circle {
    top: 3rem;
    right: clamp(6rem, 9vw, 9rem);
    width: clamp(7rem, 9.5vw, 8.5rem);
    height: clamp(7rem, 9.5vw, 8.5rem);
  }

  .fv__images__wave:nth-of-type(5) {
    top: 2rem;
    right: clamp(2vw, 4vw, 6vw);
    width: clamp(3rem, 4vw, 3.75rem);
    height: clamp(1.75rem, 2.2vw, 2.1rem);
  }

  .fv__images__wave:nth-of-type(6) {
    bottom: 8vw;
    left: clamp(-3vw, -1vw, 1vw);
    width: clamp(3rem, 4vw, 3.75rem);
    height: clamp(1.75rem, 2.2vw, 2.1rem);
  }
}

.fv__btnArea--fixed {
  position: fixed;
  right: 0;
  bottom: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  z-index: 1000;
}

.fixed-btn {
  display: flex!important;
  align-items: center;
  justify-content: flex-end;
  width: clamp(3rem, 12vw , 4rem);
  padding: .67em 0;
  font-size: clamp(0.75rem, 3vw, 1rem);
  color: var(--color-white);
  border-radius: .5rem 0 0 .5rem;
  writing-mode: vertical-rl;
  font-weight: 600;
  line-height: 1;
  transition: filter 0.2s ease, transform 0.2s ease;
}

.fixed-btn:hover {
  filter: brightness(1.25);
}

.fixed-btn::after {
  content: "";
  display: inline-block;
  width: .5em;
  height: 1em;
  margin-top: .1rem;
  background: url(../media/images/icons/arrow.svg) center / contain no-repeat;
  transform: rotate(90deg);
}

.fixed-btn.btn--blue::before {
  content: "";
  display: inline-block;
  width: 1.5em;
  height: 1.5em;
  margin-bottom: .2rem;
  background: url(../media/images/icons/date-icon.svg) center / contain no-repeat;
}

@media screen and (min-width: 768px) {
 .fv__btnArea--fixed .btn--orange {
  display: none!important;
 }  
}

@media screen and (min-width: 768px) {
  .fv__btnArea--fixed {
    right: 1.5vw;
    bottom: 1.5vw;
  }

  .fixed-btn {
    flex-direction: column;
    gap: .5em;
    width: 5.5rem;
    padding: 1.25em 0 1em;
    border-radius: 0.5rem;
    writing-mode: horizontal-tb;
    text-align: center;
    font-size: 0.875rem;
  }
    
  .fixed-btn .pc-only {
    display: inline!important;
  }

  .fixed-btn > span {
    display: block;
  }

  .fixed-btn > span:first-child {
    padding: 0.5em 0;
  }

  .fixed-btn > span:last-child {
    border-top: 1px solid;
    margin-bottom: 1em;
    padding-top: 0.5em;
  }

  .fixed-btn .text-small {
    font-size: 0.75rem;
  }

  .fixed-btn.btn--blue::before {
    width: 2.25em;
    height: 2.25em;
  }
}

/* ========================================
   メイン
======================================== */
@media screen and (min-width: 768px) {
  .main {
    padding: 0 1.25rem;
  }
}

/* -- ABOUT -- */
#about .section__title {
  margin-bottom: 2rem;
}

#about .section__title span::before,
#about .section__title span::after {
  background-image: url(../media/images/icons/about_icon.svg);
}

@media screen and (min-width: 768px) {
  #about.section::before {
    content: "ABOUT ABOUT ABOUT";
  }

  #about .section__title {
    margin-bottom: 3rem;
  }
}

.about__intro {
  text-align: center;
  font-weight: 600;
}

.about__intro p {
  font-size: clamp(1rem, 4vw, 1.25rem);
  line-height: 1.85;
}

.about__intro p .color-blue {
  font-size: clamp(1.25rem, 4.5vw, 1.825rem);
}

.about-flow__wrapper {
  display: none;
}

.about-flow__wrapper.is-open {
  display: block;
}

.about-flow {
  position: relative;
  max-width: 34rem;
  margin: 1.5rem auto -4.5rem;
}

.about-flow::before {
  content: "START!";
  position: absolute;
  top: 0.65em;
  right: 0;
  padding: 0 0.2em;
  border: 1px solid var(--color-blue);
  color: var(--color-blue);
  font-size: clamp(0.9375rem, 3vw, 1rem);
  font-family: var(--font-en);
  font-weight: 700;
  line-height: 1.4;
}

.about-flow__items--left {
  margin-bottom: -10rem;
}

.about-flow__item {
  position: relative;
  display: flex;
  align-items: center;
  gap: clamp(1rem, 3.5vw, 2.5rem);
  --i: 0;
  transform: translateY(calc(var(--i) * -2.5rem));
}

.about-flow__item:nth-child(even)  {
  justify-content: flex-end;
}

.about-flow__item:nth-child(2) { --i: 1; } /* -2.5rem */
.about-flow__item:nth-child(3) { --i: 2; } /* -5.0rem */
.about-flow__item:nth-child(4) { --i: 3; } /* -7.5rem */
.about-flow__item:nth-child(5) { --i: 4; } /* -10.0rem */
.about-flow__item:nth-child(6) { --i: 5; } /* -12.5rem */
.about-flow__item:nth-child(7) { --i: 6; } /* -15.0rem */

.about-flow__item::before,
.about-flow__item::after {
  position: absolute;
  content: "";
}

.about-flow__item::before {
  display: block;
  top: 2rem;
  width: 100%;
  height: min(23vw, 125px);
  z-index: -1;
}

.about-flow__item:nth-child(odd)::before {
  border-right: 1px dashed var(--color-blue);
}

.about-flow__item:nth-child(even)::before {
  border-left: 1px dashed var(--color-blue);
}

.about-flow__item::after {
  display: block;
  bottom: min(calc(6.5vw - 2px), 36px);
  width: 100%;
  height: 1px;
  border-top: 1px dashed var(--color-blue);
}

.about-flow__item:nth-child(odd)::after {
  transform: rotate(-7.5deg);
}

.about-flow__item:nth-child(even)::after {
  transform: rotate(7.5deg);
}

.about-flow__title {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.about-flow__title-num {
  display: inline-block;
  margin-bottom: .0625em;
  color: var(--color-white);
  font-size: 2.5rem;
  font-family: var(--font-en);
  font-weight: 600;
  -webkit-text-stroke: 2px var(--color-blue);
  paint-order: stroke fill;
  line-height: 1;
}

.about-flow__title h3 {
  width: fit-content;
  height: min(33vw, 186px);
  padding-top: .5em;
  font-size: clamp(1.125rem, 4vw, 1.5rem);
  color: var(--color-white);
  background-color: var(--color-blue);
  writing-mode: vertical-rl;
}

.about-flow__item:nth-child(odd) .about-flow__title h3 {
  clip-path: polygon(0 0, 100% 0, 100% 97%, 0% 100%);
}

.about-flow__item:nth-child(even) .about-flow__title h3 {
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0% 97%);
}

.about-flow__img {
  width: min(26.667vw, 7.75rem);
  flex-shrink: 0;
}

.about-flow__desc {
  color: var(--color-blue);
  min-width: 8.75rem;
  font-size: clamp(0.875rem, 3.5vw, 1rem);
  line-height: 1.6;
}

.about-flow__item:nth-child(odd) .about-flow__desc {
  margin-right: 1rem;
}

.about-flow__item:nth-child(even) .about-flow__desc {
  min-width: 42%;
  margin-left: 1rem;
}

.about-flow__last {
  width: fit-content;
  position: relative;
  margin: 0 auto 3rem;
  z-index: 1;
}

.about-flow__last p {
  padding: 0 .75em .1em;
  background-color: var(--color-blue);
  color: var(--color-white);
  font-size: clamp(1.125rem, 2vw, 1.5rem);;
  font-weight: 600;
  transform: rotate(-7.75deg);
  line-height: 1.6;
  text-align: center;
}

.about-flow__last::before {
  content: "";
  position: absolute;
  top: -140%;
  left: 50%;
  right: 50%;
  transform: translateX(-50%);
  width: 18px;
  height: 34px;
  background: url(../media/images/arrow_large.svg) center no-repeat;
  background-size: contain;
}

.about-flow__last::after {
  content: "1";
  position: absolute;
  top: -160%;
  right: -6.5%;
  color: var(--color-white);
  font-size: clamp(4rem, 16vw, 5.5em);
  font-family: var(--font-en);
  font-weight: 600;
  -webkit-text-stroke: 2px var(--color-blue);
  paint-order: stroke fill;
  line-height: 1;
  opacity: 0.3;
  z-index: -1;
}

.more-btn {
  position: relative;
  display: block;
  width: fit-content;
  margin: 1.75rem auto 0.5rem;
  padding: .25rem 1.5rem;
  border: 1px solid var(--color-blue);
  border-radius: 2rem;
  outline: 0;
  transition: .5s;
  -webkit-transition: .5s;
  z-index: 10;
}

.more-btn::after {
  content: "もっと見る ＋";
  margin-left: .5rem;
  color: var(--color-blue);
  transition: .2s;
  -webkit-transition: .2s;
}

.more-btn.is-open::after {
  content: "閉じる ×";
}

@media screen and (min-width: 768px) {
  .more-btn {
    cursor: pointer;
    transition: background-color 0.25s ease, border-color 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
  }

  .more-btn:hover {
    background-color: var(--color-blue);
    box-shadow: 0 4px 12px rgba(0, 65, 188, 0.15);
  }

  .more-btn:hover::after {
    color: var(--color-white);
  }
}

@media screen and (min-width: 1080px) {
  .about-flow__wrapper {
    position: relative;
    display: block;
  }

  .about-flow {
    display: flex;
    justify-content: space-between;
    gap: 11%;
    width: 100%;
    max-width: 69.5rem;
    margin: 2rem auto -9.5rem;
  }

  .about-flow::before {
    top: 0.5em;
    left: calc(50% - min(9vw, 7.25rem));
    right: unset;
    padding: 0 0.425em;
    font-size: min(2vw, 1.5rem);
  }

  .about-flow__items--left,
  .about-flow__items--right {
    width: 50%;
  }

  .about-flow__items--left {
    margin: 0;
  }

  .about-flow__items--right {
    margin-top: 6.5rem;
  }

  .about-flow__item {
    gap: 1.25rem;
    transform: translateY(calc(var(--i) * -3.5rem));
  }

  .about-flow__item::before {
    top: 3rem;
    height: 9.125rem;
  }

  .about-flow__item::after {
    bottom: 13%;
  }

  .about-flow__item:nth-child(odd)::after {
    transform: rotate(-8deg);
  }

  .about-flow__item:nth-child(even)::after {
  transform: rotate(8deg);
  }

  .about-flow__title-num {
    position: relative;
    font-size: 4rem;
  }

  .about-flow__items--left .about-flow__item:nth-child(4) .about-flow__title-num::before,
  .about-flow__items--right .about-flow__item:nth-child(1) .about-flow__title-num::before {
    content: "";
    position: absolute;
    top: 53%;
    width: min(3.5vw, 3.25rem);
    height: 1px;
    border-bottom: 1px dashed var(--color-blue);
  }

  .about-flow__items--left .about-flow__item:nth-child(4) .about-flow__title-num::before {
    left: calc(100% + .75rem);
  }

  .about-flow__items--right .about-flow__item:nth-child(1) .about-flow__title-num::before {
    right: calc(100% + .75rem);
  }

  .about-flow__items--left .about-flow__item:nth-child(4) .about-flow__title-num::after {
    content: "";
    position: absolute;
    top: calc(53% - 32.5rem);
    left: calc(100% + .75rem + 3rem);
    width: 1px;
    height: 32.5rem;
    border-right: 1px dashed var(--color-blue);
    transform: rotate(180deg);
  }

  .about-flow__title h3 {
    min-height: 12.25rem;
  }

  .about-flow__img {
    width: 10rem;
  }

  .about-flow__desc {
    font-size: 1.125rem;
  }

  .about-flow__last {
    position: absolute;
    left: min(52%, 39rem);
    bottom: 10.25rem;
    width: 50%;
  }

  .about-flow__last::before {
    top: -4.5rem;
    width: 28px;
    height: 48px;
  }

  .about-flow__last::after {
    top: -5rem;
    right: calc(30%  - 8rem);
    font-size: 7.75rem;
  }

  .about-flow__last p {
    width: min(35vw, 27rem);
    margin-inline: auto;
    padding: 0 0 0.1em;
    line-height: 1.8;
  }

  .more-btn {
    display: none;
  }
}


/* -- SUPPLY -- */
#supply .section__title span::before,
#supply .section__title span::after {
  background-image: url(../media/images/icons/supply_icon.svg);
}

.supply__contents {
  margin-bottom: 4.5rem;
}

.supply__list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  row-gap: 2rem;
  place-items: center;
  max-width: 35rem;
  margin-inline: auto;
  padding: 0 1rem;
}

.supply__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 15rem;
}

.supply__item:nth-of-type(even) {
  transform: translateY(4.25rem)
}

.supply__img {
  padding: 0 1rem;
}

.supply__item p {
  margin-top: .5em;
  color: var(--color-blue);
  font-family: var(--font-heading);
  font-weight: 600;
  text-align: center;
  line-height: 1.5;
  white-space: nowrap;
}

@media screen and (min-width: 768px) {
  #supply.section::before {
    content: "SUPPLY SUPPLY SUPPLY";
  }

  .supply__list {
    display: flex;
    max-width: 100%;
    margin-bottom: 7.75rem;
  }

  .supply__item:nth-of-type(even) {
    transform: translateY(7.75rem);
  }

  .supply__item {
    width: 14vw;
  }

  .supply__item p {
    margin-top: 1rem;
    font-size: 1.25rem;
  }

  .supply__item:last-child p {
    font-size: 1.125rem;
  }
}

/* -- issue -- */
.section-issue {
  background: var(--color-paleblue) url(../media/images/koushi_pt.png) 10%;
  background-size: 24px;
}

.issue__title {
  position: relative;
  width: fit-content;
  margin: 0.25rem 0 0.8em;
  padding: 0 0.75rem;
  color: var(--color-blue);
  font-size: 2rem;
  font-weight: 500;
  line-height: 1.6;
  letter-spacing: 0.04em;
}

.issue__title::before {
  content: "";
  position: absolute;
  top: -4px;
  right: 6px;
  width: 4.625rem;
  height: 6.125rem;
  background: url(../media/images/icons/issue_icon.svg) center top no-repeat;
  background-size: contain;
}

.issue__intro {
  width: fit-content;
  margin-bottom: 2.25rem;
  padding: 0 0.75rem;
  font-size: 1.06rem;
}

.issue__contents {
  max-width: 34rem;
  margin: 0 auto 0.5rem;
}


.issue__item {
  position: relative;
}

.issue__item:not(last-child) {
  margin-bottom: 1.5rem;
}


.issue__img {
  width: min(calc(100% - 6rem), 16rem);
  min-height: 11.75rem;
  aspect-ratio: 1.35 / 1;
  border-radius: 1.25rem;
  overflow: hidden;
}

.issue__item:nth-of-type(2n + 1) .issue__img {
   margin-right: auto;
}

.issue__item:nth-of-type(2n) .issue__img {
  margin-left: auto;
}

.issue__desc {
  position: absolute;
  top: 50%;
  bottom: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 10rem;
  height: 10rem;
  padding: 2.25rem .5rem 1.5rem;
  background-color: var(--color-white);
  border-radius: 1.25rem;
  text-align: center;
}

.issue__desc::before {
  content: "";
  position: absolute;
  top: 1.25rem;
  left: 50%;
  right: 50%;
  transform: translateX(-50%);
  width: 10px;
  height: 10px;
  background-color: var(--color-gray);
  border-radius: 50%;
}


.issue__item:nth-of-type(n + 3) .issue__desc::before {
  top: .875rem;
}

.issue__item:nth-of-type(2n + 1) .issue__desc {
  left: 12rem;
}

.issue__item:nth-of-type(2n) .issue__desc {
  right: 12rem;
}

.issue__desc h3 {
  margin-bottom: .375em;
  color: var(--color-orange);
  font-size: clamp(1.125rem, 4.5vw, 1.25rem);
  line-height: 1.3;
}

.issue__desc p {
  font-size: 0.875rem;
  line-height: 1.4;
}

/* 768px〜1279px（中画面用・取り囲みGrid＆カード拡大レイアウト） */
@media screen and (min-width: 768px) {
  .section-issue .section__inner--small {
    display: grid;
    grid-template-columns: 1fr clamp(19.5rem, calc(15vw + 11rem), 25rem);
    grid-template-rows: auto auto auto;
    gap: clamp(1.5rem, calc(2vw + 0.5rem), 3.5rem) clamp(1.5rem, calc(2vw + 0.5rem), 3.5rem);
    margin: 0 auto;
    padding: 3rem 1.5rem;
    max-width: 65rem;
  }

  .issue__contents {
    display: contents;
  }

  .issue__item {
    margin-bottom: 0;
  }

  .issue__intro-wrapper {
    grid-row: 1 / 3;
    grid-column: 1;
    text-align: left;
    margin: 0;
    max-width: 100%;
    align-self: center;
  }

  .issue__title {
    margin: 0.25rem 0 0.8em;
    padding-top: 0;
    padding-left: 0.75rem;
    font-size: clamp(2rem, calc(0.78vw + 26px), 2.25rem);
    width: fit-content;
  }
  
  .issue__title::before {
    top: -4px;
    left: unset;
    right: 6px;
    transform: none;
    width: 4.625rem;
    height: 6.125rem;
  }

  .issue__intro {
    margin: 0;
    padding: 0 0.75rem;
    font-size: clamp(1.0625rem, calc(0.39vw + 14px), 1.1875rem);
    line-height: 1.8;
    text-align: left;
  }

  /* 各カードのセル配置定義 */
  .issue__item:nth-of-type(1) { grid-row: 1; grid-column: 2; } /* 右上 */
  .issue__item:nth-of-type(2) { grid-row: 2; grid-column: 2; } /* 右中 */
  .issue__item:nth-of-type(3) { grid-row: 3; grid-column: 1; } /* 左下 */
  .issue__item:nth-of-type(4) { grid-row: 3; grid-column: 2; } /* 右下 */

  .issue__item {
    width: 100%;
    aspect-ratio: inherit;
  }
  
  .issue__item:nth-of-type(2n) .issue__img {
    margin-left: 0;
  }

  .issue__img {
    height: 100%;
    aspect-ratio: 1 / 1;
  }

  .issue__img img {
    width: auto;
    height: 100%;
  }

  .issue__desc {
    width: clamp(10.5rem, calc(8vw + 6rem), 13.5rem);
    height: clamp(10.5rem, calc(8vw + 6rem), 13.5rem);
  }

  .issue__item:nth-of-type(2n + 1) .issue__desc,
  .issue__item:nth-of-type(2n) .issue__desc {
    left: clamp(8.5rem, calc(7vw + 5rem), 12rem);
    right: auto;
  }

  .issue__desc h3 {
    font-size: clamp(1.0625rem, calc(0.5vw + 0.8rem), 1.25rem);
  }

  .issue__desc p {
    font-size: clamp(0.8125rem, calc(0.3vw + 0.65rem), 0.9375rem);
    line-height: 1.4;
  }
}

/* 1280px以上（大画面用・四隅絶対配置レイアウト復元） */
@media screen and (min-width: 1200px) {
  .section-issue .section__inner--small {
    position: relative;
    display: block;
    padding: min(3vw, 3rem);
    max-width: 100%;
  }

  .issue__intro-wrapper {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    width: fit-content;
    margin: 0 auto 2.5rem;
    text-align: center;
    z-index: 1;
  }

  .issue__title {
    margin: .25rem 0 0.5em;
    padding-top: 7.75rem;
    font-size: clamp(2.25rem, calc(2.5vw + 4px), 2.5rem);
    text-align: center;
    width: auto;
  }
  
  .issue__title::before {
    top: 0;
    left: 50%;
    right: 50%;
    transform: translateX(-50%);
    width: 5.375rem;
    height: 7rem;
  }

  .issue__intro {
    margin-bottom: 0;
    padding: 0;
    font-size: clamp(1.1875rem, calc(0.625vw + 11px), 1.25rem);
    line-height: 2;
    text-align: center;
  }

  .issue__contents {
    display: flex;
    position: absolute;
    top: 6.75rem;
    left: min(3vw, 3rem);
    right: min(3vw, 3rem);
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    column-gap: calc(100% - 50rem);
    row-gap: 3.5rem;
    max-width: calc(100% - min(3vw, 3rem) * 2);
    height: auto;
    margin: 0 auto;
  }

  .issue__item:nth-of-type(1),
  .issue__item:nth-of-type(2),
  .issue__item:nth-of-type(3),
  .issue__item:nth-of-type(4) {
    grid-row: auto;
    grid-column: auto;
  }

  .issue__item {
    width: 24.75rem;
    aspect-ratio: auto;
  }

  .issue__item:nth-of-type(2n) .issue__img {
    margin-left: auto;
  }

  .issue__img {
    width: min(17.778vw, 16rem);
  }

  .issue__desc {
    width: min(14.72vw, 13.25rem);
    height: min(14.72vw, 13.25rem);
    padding-top: 1.25rem;
  }

  .issue__item:nth-of-type(2n + 1) .issue__desc {
    left: min(13.33vw, 12rem);
    right: auto;
  }

  .issue__item:nth-of-type(2n) .issue__desc {
    right: min(13.33vw, 12rem);
    left: auto;
  }

  .issue__desc p {
    font-size: 1rem;
  }

  .issue__desc h3 {
    margin-bottom: .5em;
  }
}

/*-- WORK --*/
#work .section__title span::before,
#work .section__title span::after {
  background-image: url(../media/images/icons/work_icon.svg);
}

.work__contents {
  max-width: 32rem;
  min-height: min(132vw, 37.5rem);
  margin: -0.25rem auto 0.25rem;
}

.work__container {
  position: relative;
  min-height: min(121.6vw, 35rem);
}

.work__tab-buttons {
  position: absolute;
  inset: 0;
  display: flex;
  justify-content: space-between;
  height: min(10.667vw, 3rem);
  z-index: 5;
}

.tab-btn {
  width: min(calc(100% / 3), 9rem);
  padding-left: 2.13vw;
  font-size: clamp(0.875rem, 3.5vw, 1rem);
  font-family: var(--font-heading);
  color: var(--color-black);
  text-align: left;
}

.tab-btn::after {
  content: "";
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: min(132vw, 37.5rem);
  mask-image: url(../media/images/work_tab_sp.svg);
  mask-size: min(31vw, 9rem) min(10.667vw, 3rem);
  mask-repeat: no-repeat;
  z-index: -1;
  pointer-events: none;
}

.tab-btn[data-tab="bunkei"]::after,
.work__tab--bunkei {
  background: linear-gradient(135deg, #ffebdf 0%, #f9e8d1 50%, #f3b6c5 100%);
}

.tab-btn[data-tab="bunkei"]::after {
  mask-position: left top;
}

.tab-btn[data-tab="rikei"]::after,
.work__tab--rikei {
  background: linear-gradient(135deg, #D6F6FF 0%, #D9FFF8 50%, #99D1F4 100%);
}

.tab-btn[data-tab="rikei"]::after {
  mask-position: center top;
}

.tab-btn[data-tab="kikai"]::after,
.work__tab--kikai {
  background: linear-gradient(135deg, #FFF4DA 0%, #FAF0C8 50%, #FFD2A8 100%);
}

.tab-btn[data-tab="kikai"]::after {
  mask-position: right top;
}

.work__tab {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  margin-top: calc(min(10.667vw, 3rem) - 1.5px);
  padding: .5rem;
  border-radius: 0 0 0.5rem 0.5rem;
  /* 初期状態のz-index（非アクティブ） */
  z-index: 1;
  opacity: 0.5; /* 非アクティブ時の見え方を調整したい場合 */
  pointer-events: none; /* 背面のタブ要素をクリック不可にする */
  transition: z-index 0.3s, opacity 0.3s;
}

.work__tab.is-active {
  z-index: 2; /* 前面に移動 */
  opacity: 1;
  pointer-events: auto; /* クリック操作を有効化 */
}

.work__inner {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 100%;
  height: 100%;
  padding: 1rem 0 1.75rem;
  background-color: rgb(255 255 255 / 0.5);
  border-radius: 0.5rem;
}

.work__img {
  max-width: 30.5rem;
  margin-inline: auto;
  padding: 0 1.5rem;
}

.work__desc {
  margin-bottom: 1em;
  font-family: var(--font-heading);
  text-align: center;
}

.work__tab--kikai .work__desc {
  margin-bottom:0.5rem;
}

.work__example {
  display: flex;
  align-items: center;
  width: fit-content;
  gap: .5rem;
  min-width: 18rem;
  height: 5rem;
  margin: 0 auto;
  border: 1px dashed var(--color-blue);
  color: var(--color-blue);
  border-radius: 5rem;
}

.work__example > h4 {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 5rem;
  height: 5rem;
  margin-left: -1px;
  border: 1px dashed;
  border-radius: 5rem;
}

.work__example > p {
  margin-right: .5rem;
  font-size: .8125rem;
}

@media screen and (min-width: 768px) {
  #work.section::before {
    content: "LINE OF WORK LINE OF WORK LINE OF WORK";
  }

  #work .section__title {
    margin-bottom: 3.5rem;
  }

  .work__contents {
    max-width: 45rem;
    min-height: 43rem;
    margin: 0 auto;
  }

  .work__container {
    min-height: 39rem;
  }

  .work__tab-buttons {
    height: 3.875rem;
  }
  
  .tab-btn {
    width: calc(100% / 3);
    padding: 0.5rem 0 0 1.75rem;
    font-size: 1.5rem;
  }

  .tab-btn::after {
    height: 39rem;
    mask-image: url(../media/images/work_tab_pc.svg);
    mask-size: 33.333% 10%;
  }

  .work__tab {
    margin-top: 3.875rem;
    padding: 1.5rem 1.25rem;
  }

  .work__inner {
    justify-content: flex-start;
    gap: 1rem;
  }

  .work__inner h3 {
    position: absolute;
    top: 3rem;
    right: 2rem;
    font-size: 2.5rem;
    writing-mode: vertical-rl;
  }

  .work__desc {
    font-size: 1.25rem;
    line-height: 1.5;
  }
  
  .work__example {
    gap: 1rem;
    min-width: 32rem;
    height: 6.75rem;
  }

  .work__example > h4 {
    width: 6.75rem;
    height: 6.75rem;
  }

  .work__example > p {
    font-size: 1rem;
  }
}


/* -- challenge -- */
@media (max-width: 767px) {
  #challenge .section__title {
    margin: 0 auto 2.75rem;
  }
}

#challenge .section__title span::before,
#challenge .section__title span::after {
  background-image: url(../media/images/icons/challenge_icon.svg);
}

#challenge .section__title span::before {
  transform: scale(-1);
}

.challenge__contents {
  display: flex;
  flex-direction: column;
  gap: .875rem;
}

.challenge__item {
  position: relative;
  padding-top: 2.25rem;
  z-index: 1;
  overflow-x: hidden;
}

.challenge__main {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  width: min(calc(100% - 4rem), 23rem);
  height: 13rem;
  margin-bottom: 1rem;
  padding: 1rem 1rem 1.25rem;
  font-family: var(--font-base);
  line-height: 1.4;
}

.challenge__item:nth-of-type(odd) .challenge__main {
  margin: 0 -0.75rem 0 auto;
  padding-left: 3.5rem;
  color: var(--color-blue);
  background-color: var(--color-white);
  border: 1px solid var(--color-blue);
  border-right: none;
  border-radius: 50rem 0 0 50rem;
}

.challenge__item:nth-of-type(even) .challenge__main {
  margin: 0 auto 0 -0.75rem;
  padding-left: 3.5rem;
  color: var(--color-white);
  background-color: var(--color-blue);
  border-radius: 0 50rem 50rem 0;
}

.challenge__num {
  position: absolute;
  top: 0.5rem;
  color: var(--color-lightblue);
  font-family: var(--font-en);
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.03em;
}

.challenge__num span {
  font-size: 2.25rem;
}

.challenge__item:nth-of-type(odd) .challenge__num {
  right: 2rem;
}

.challenge__item:nth-of-type(even) .challenge__num {
  left: 2.25rem;
}

.challenge__main h3 {
  position: relative;
  margin-top: 2.25rem;
  margin-bottom: 1rem;
  font-family: var(--font-base);
}

.challenge__main h3::before, 
.challenge__main h3::after {
  content: "";
  position: absolute;
  width: 2.25rem;
  height: 2.25rem;
}

.challenge__main h3::before {
  border-top: 1px solid var(--color-blue);
  border-left: 1px solid var(--color-blue);
  top: -0.5rem;
  left: -1.25rem;
}

.challenge__item:nth-of-type(even) .challenge__main h3::before {
  border-top: 1px solid var(--color-white);
  border-left: 1px solid var(--color-white);
}

.challenge__main h3::after {
  border-bottom: 1px solid var(--color-blue);
  border-right: 1px solid var(--color-blue);
  bottom: -0.5rem;
  right: -1.25rem;
}

.challenge__item:nth-of-type(even) .challenge__main h3::after {
  border-bottom: 1px solid var(--color-white);
  border-right: 1px solid var(--color-white);
}

.challenge__item:first-child .challenge__main h3::after {
  right: -0.5rem;
}

.challenge-btn {
  gap: 0.25rem;
  min-width: inherit;
  margin-left: 0;
  padding: 0 1em;
  line-height: 1.7;
}

.challenge-btn::after {
  width: .375rem;
  height: .75rem;
  line-height: 1.8;
}

.challenge__item:nth-of-type(odd) .challenge-btn {
  background-color: var(--color-blue);
  color: var(--color-white);
}

.challenge__item:nth-of-type(even) .challenge-btn {
  background-color: var(--color-white);
  color: var(--color-blue);
}

.challenge__item:nth-of-type(even) .challenge-btn::after {
  background-image: url('data:image/svg+xml,%3C%3Fxml%20version%3D%221.0%22%20encoding%3D%22utf-8%22%3F%3E%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%207%2012%22%20fill%3D%22none%22%3E%3Cpath%20d%3D%22M1%201L5.94975%205.94975L1%2010.8995%22%20stroke%3D%22%23235DCA%22%20stroke-width%3D%222%22%20stroke-linecap%3D%22round%22%20stroke-linejoin%3D%22round%22%2F%3E%3C%2Fsvg%3E');
}

.challenge__img {
  position: absolute;
  top: 0;
  width: min(38.4vw, 14rem);
  z-index: -1;
}

@media (max-width: 767px) {
  .challenge__item:nth-of-type(odd) .challenge__img {
    right: min(65vw, 19rem);
  }
  
  .challenge__item:nth-of-type(even) .challenge__img {
    left: min(65vw, 19rem);
  }
}

@media screen and (min-width: 768px) {
  #challenge.section::before {
    content: "CHALLENGE CHALLENGE CHALLENGE";
  }

  .challenge__contents {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: clamp(3rem, calc(4.67vw + 12px), 4.2rem) clamp(1.125rem, calc(1.75vw + 4.5px), 1.575rem);
    margin: 0 auto 4.75rem;
    max-width: max(73vw, 50rem);
  }
  
  .challenge__item {
    width: clamp(18.5rem, calc(21.4vw + 8.2rem), 24rem);
  }

  .challenge__main {
    width: clamp(14.5rem, calc(6.25vw + 11.5rem), 16.5rem);
    height: clamp(14.5rem, calc(6.25vw + 11.5rem), 16.5rem);
  }

  .challenge__item:nth-of-type(odd) .challenge__main,
  .challenge__item:nth-of-type(even) .challenge__main {
    border-radius: 50%;
    margin: clamp(1.75rem, calc(1.78vw + 0.9rem), 2.5rem) 0 0 auto;
    padding: 0;
    border-right: 1px solid var(--color-blue);
  }

  .challenge__img {
    width: clamp(10.5rem, calc(4.6875vw + 8.25rem), 12rem);
  }

  .challenge__item:nth-child(2n) {
    transform: translateY(clamp(3rem, calc(4.6875vw + 12px), 4.5rem));
  }
  .challenge__item:nth-child(2n + 1) {
    transform: translateY(0);
  }

  .challenge__main h3 {
    font-size: clamp(1rem, calc(0.39vw + 13px), 1.125rem);
    margin: clamp(2rem, calc(1.56vw + 12px), 2.75rem) auto clamp(1rem, calc(0.78vw + 6px), 1.25rem);
  }

  .challenge-btn {
    gap: .5em;
    margin: 0 auto;
    padding: .125em 1em .18em;
    font-size: 1rem;
  }

  .challenge__item:nth-of-type(odd) .challenge__num,
  .challenge__item:nth-of-type(even) .challenge__num {
    left: unset;
    top: clamp(2rem, calc(2.9vw + 10px), 2.75rem);
    right: clamp(2.25rem, calc(2.9vw + 14px), 3rem);
  }
}

@media screen and (min-width: 1280px) {
  .challenge__contents {
    gap: clamp(4.2rem, calc(11vw - 62.4px), 6rem) clamp(1.575rem, calc(4.13vw - 23.4px), 2.25rem);
    max-width: 77.5rem;
  }

  .challenge__item {
    width: calc((100% - (clamp(1.575rem, calc(4.13vw - 23.4px), 2.25rem) * 2)) / 3);
  }

  .challenge__main {
    width: clamp(16.5rem, calc(10vw + 8.5rem), 17.5rem);
    height: clamp(16.5rem, calc(10vw + 8.5rem), 17.5rem);
  }

  .challenge__item:nth-of-type(odd) .challenge__main,
  .challenge__item:nth-of-type(even) .challenge__main {
    margin: clamp(2.25rem, calc(5vw - 28px), 2.5rem) 0 0 auto;
  }

  .challenge__img {
    width: clamp(12rem, calc(10vw + 4rem), 13rem);
  }

  .challenge__item:nth-child(2n) {
    transform: translateY(0);
  }
  .challenge__item:nth-child(3n + 2) {
    transform: translateY(2.5rem);
  }
  .challenge__item:nth-child(3n) {
    transform: translateY(5rem);
  }

  .challenge__main h3 {
    font-size: clamp(1.125rem, calc(1.25vw + 2px), 1.25rem);
    margin: clamp(2.25rem, calc(5vw - 28px), 2.75rem) auto 1.25rem;
  }

  .challenge__item:nth-of-type(odd) .challenge__num,
  .challenge__item:nth-of-type(even) .challenge__num {
    left: unset;
    top: clamp(2.75rem, calc(1.53vw + 26px), 3rem);
    right: clamp(3rem, calc(1.53vw + 30px), 3.25rem);
  }
}

/* -- voice -- */
@media (max-width: 767px) {
  #voice .section__title span {
    padding: 1.2em 1em;
  }
}

#voice .section__title span::before,
#voice .section__title span::after {
  background-image: url(../media/images/icons/voice_icon.svg);
}

#voice .section__title span::before {
  transform: scaleX(-1);
}

#voice .section__title {
  min-width: 13.5rem;
  margin-bottom: 1.75rem;
}

.voice-btn {
  justify-content: center;
  gap: 1.5rem;
  min-width: 13.5rem;
  padding-right: 1.5em;
}

@media screen and (min-width: 768px) {
  #voice.section::before {
    content: "VOICE VOICE VOICE VOICE";
  }
}

/* -- recruit -- */
#recruit .section__title {
  margin-bottom: 1.75rem;
}

#recruit .section__title span::before,
#recruit .section__title span::after {
  background-image: url(../media/images/icons/recruit_icon.svg);
}

.recruit__contents {
  margin-bottom: 0.75rem;
  text-align: center;
}

.recruit__desc {
  margin-bottom: 2.25rem;
}

@media screen and (min-width: 768px) {
  #recruit.section::before {
    content: "RECRUIT RECRUIT RECRUIT";
  }

  .recruit__desc {
     margin: 2.75rem 0;
  }
}

/*-- TOKYO PACK -- */
.section--tokyopack {
  margin-bottom: 0;
  border: 1px solid var(--color-orange);
  background: #FFF5EB url(../media/images/dot_pt.png);
  background-size: 7px;
}

.section__inner--tokyopack {
  padding: 2.75rem 1.25rem;
}

.tokyopack__title-wrapper {
  position: relative;
}

.tokyopack__title {
  width: fit-content;
  margin-bottom: .7125em;
  color: var(--color-orange);
  font-size: clamp(1.75rem, 7vw, 2.5rem);
  font-family: var(--font-base);
  line-height: 1.4;
  letter-spacing: 0.04em;
  text-decoration: underline;
  text-decoration-style: dashed;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.25em;
}

.tokyopack__title span {
  font-size: clamp(2.125rem, 8vw, 2.5rem);
  line-height: 1.2;
  letter-spacing: 0;
}

.tokyopack__desc {
  margin-bottom: 1.5rem;
  color: var(--color-blue);
  line-height: 1.5;
}

.tokyopack__desc h3 {
  margin-bottom: .5em;
  font-size: clamp(1.125rem, 4.5vw, 1.5rem);
  font-family: var(--font-base);
  line-height: 1.55;
}

.tokyopack__desc p {
  font-size: clamp(1rem, 4vw, 1.275rem);
}

.tokyopack__img {
  position: absolute;
}

.tokyopack__img--girl {
  top: 5.75rem;
  left: 64%;
  width: min(25.5%, 7rem);
}

.tokyopack__img--boy {
  top: 11rem;
  left: 84%;
  width: min(18.5%, 5rem);
}

.tokyopack__contents {
  display: flex;
  flex-direction: column;
  gap: .875rem;
}

.tokyopack__infomation {
  font-size: clamp(0.875rem, 3.5vw, 1rem);
}

.tokyopack__infomation dl {
  display: flex;
  gap: .75rem;
  background-color: var(--color-white);
  border: 1px solid var(--color-blue);
  border-radius: .5rem;
  line-height: 2.55;
  overflow: hidden;
}

.tokyopack__infomation dl dt {
  min-width: 4em;
  background-color: var(--color-blue);
  color: var(--color-white);
  text-align: center;
}

.tokyopack__infomation > * + * {
  margin-top: 1px;
}

.tokyopack__schedule {
  padding: 0.5rem 0.75rem;
  color: var(--color-blue);
  background-color: var(--color-white);
  border: 1px solid var(--color-blue);
  border-radius: 1.25rem;
}

.tokyopack__schedule > * + * {
  border-top: 1px solid var(--color-blue);
}

.tokyopack__schedule dl {
  padding: 0.75rem 0;
}

.tokyopack__schedule dl dt {
  margin-bottom: 0.125em;
  font-size: clamp(1rem, 4vw, 1.125rem);
  font-weight: 600;
  line-height: 1.4;
}

.tokyopack__schedule dl dd {
  font-size: clamp(0.875rem, 3.5vw, 0.9375rem);
  line-height: 1.4;
}

.tokyopack__term {
  margin: .25rem 0 .75rem;
  padding: 0.25em 0;
  color: #E8204F;
  border-top: 1px solid #E8204F;
  border-bottom: 1px solid #E8204F;
  font-size: clamp(1rem, 4vw, 1.25rem);
  font-weight: 600;
  line-height: 1.6;
}

@media screen and (min-width: 768px) {
  .section--tokyopack > .section__inner {
    padding: 2.75rem min(6vw, 3.75rem);
  }

  .tokyopack__contents-wrapper {
    display: flex;
    justify-content: space-between;
  }

  .tokyopack__title span {
    letter-spacing: 0.04rem;
  }

  .tokyopack__img--girl {
    top: 2.75rem;
    left: 102%;
    width: 28.5%;
  }

  .tokyopack__img--boy {
    top: 9rem;
    left: 124%;
    width: 21.5%;
  }

  .tokyopack__contents {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    margin: 1rem 0;
    gap: 2.25rem min(3vw, 2rem);
    width: 42.25rem;
  }

  .tokyopack__infomation dl dt {
    min-width: 5em;
  }

  .tokyopack__infomation dl {
    line-height: 2.78;
  }

  .tokyopack__schedule {
    padding: 0.5rem 1rem;
  }

  .tokyopack__schedule dl {
    padding: 0.5rem 0;
  }

  .tokyopack__term {
    margin: 0;
    padding: 0.125em 0;
  }

  .tokyopack__contents .btn {
    width: 100%;
    padding: 0 1.75rem 0 2.5rem;
    gap: 0;
  }
}

@media (min-width: 768px) and (max-width: 1400px) {
  .tokyopack__contents-wrapper {
    flex-direction: column;
  }

  .tokyopack__title-wrapper {
    display: flex;
    flex-wrap: wrap;
    column-gap: 3vw;
  }
  
  .tokyopack__img--girl {
    top: -1rem;
    left: unset;
    right: 10%;
    width: 7rem;
  }

  .tokyopack__img--boy {
      top: 0.5rem;
      left: unset;
      right: 1%;
      width: 5rem;
  }

  .tokyopack__contents {
    width: 100%;
  }
}

@media (min-width: 768px) and (max-width: 1160px) {
    .tokyopack__img {
      display: none;
  }
}

/* ========================================
   フッター
======================================== */
.footer {
  padding: 1.5rem 0 1rem;
  text-align: center;
}

.footer__copyright {
  font-size: 0.75em;
  color: var(--color-black);
  opacity: 0.7;
}

@media screen and (min-width: 768px) {
  .footer {
    padding: 2rem 0 1.25rem;
  }
}

/* .bg {
  position: absolute;
  inset: 0;
  z-index: 100000;
  width: 100%;
  height: 10000px;
  background-image: url(../media/images/bg_sp.png);
  background-size: contain;
  background-position: center top;
  background-repeat: no-repeat;
  pointer-events: none;
  opacity: .3;
}
@media screen and (min-width: 769px) {
  .bg {
    width: 1440px;
    left: 50%;
    right: 50%;
    transform: translateX(-50%);
    background-image: url(../media/images/bg_pc.png);
    background-size: 100%;
  }
} */