:root {
  --text-color: #1a1a1a;
  --text-gray: #666;
  --color-white: #fff;
  --fw-regular: 400;
  --fw-medium: 500;
  --bg-gray: #f2f2f2;
  --border-gray: #ccc;
  /* px → rem換算（1rem = 16px） */
  --fz32: 2rem; /* 32px */
  --fz28: 1.75rem; /* 28px */
  --fz24: 1.5rem; /* 24px */
  --fz22: 1.375rem; /* 22px */
  --fz16: 1rem; /* 16px */
  --fz11: 0.6875rem; /* 11px */
}
/* Perfect Pixcel バグ修正CSS */
/* ============================================ */
#chromeperfectpixel-overlay-container,
.chromeperfectpixel-overlay {
  width: 100% !important;
  height: auto !important;
}
/* Reset box-model and set borders */
/* ============================================ */

.slideNone .swiper-button-next,
.slideNone .swiper-button-prev {
  display: none;
}
.about_design * {
  font-family: "Noto Sans", "Noto Sans JP", sans-serif;
  font-optical-sizing: auto;
  font-weight: var(--fw-regular);
  font-style: normal;
  color: var(--text-color);
  line-height: 175%;
  font-feature-settings: "palt";
  @media (max-width: 641px) {
    font-feature-settings: initial;
  }
}

body {
  background: var(--color-white) !important;
}
.about_design img {
  display: block;
  width: 100%;
}
.c-common .c-ttl-block .c-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  background-image: url(../img/about_design/mainvisual_img01.jpg);
  background-size: cover;
  aspect-ratio: 2560 / 640;
  @media (max-width: 641px) {
    background-image: url(../img/about_design/mainvisual_img01_sp.jpg);
    aspect-ratio: 320 / 273;
  }
}
.c-ttl-block {
  @media (max-width: 641px) {
    padding: 0;
  }
}
.c-common .c-ttl-block h1 {
  width: 100%;
  font-size: var(--fz32);
  font-weight: 500;
  padding: 0;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  @media (max-width: 975px) and (min-width: 642px) {
  }
  @media (max-width: 641px) {
    font-size: var(--fz28);
    line-height: calc(42 / 28);
    top: 11.25%;
    transform: translate(-50%, 0);
  }
}
.c-block {
  padding: 48px 0 20px;
  @media (max-width: 641px) {
    padding-bottom: 0;
  }
}
.c-inner > .is-lead {
  margin-bottom: 120px;
  @media (max-width: 641px) {
    margin-bottom: 80px;
  }
}
.is-lead {
  font-size: var(--fz16);
  line-height: calc(28 / 16);
  text-align: center;
  @media (max-width: 641px) {
    line-height: calc(24 / 16);
    text-align: left;
    margin-bottom: 80px;
    padding: 0 5%;
  }
}
.bg-gray {
  background-color: var(--bg-gray);
  margin: 120px 0 72px;
  padding: 48px 9.17% 16px;
  @media (max-width: 641px) {
    margin: 80px 0 0;
    padding: 48px 5% 32px;
  }
}
.bg-white {
  background-color: #fff;
  margin: 72px 0 0;
  padding: 48px 9.17% 0;
  @media (max-width: 641px) {
    margin-top: 0;
    padding: 96px 0 0;
  }
}
.about_design h2 {
  font-size: var(--fz22);
  line-height: 175%;
  text-align: center;
  @media (max-width: 641px) {
    font-size: var(--fz24);
    line-height: calc(36 / 24);
  }
}
.about_design h2 + p.is-lead {
  margin: 16px 0 64px;
  @media (max-width: 641px) {
    margin: 17px 0 49px;
  }
}

.about_design h3 {
  font-size: var(--fz22);
  line-height: calc(38.5 / 22);
  text-align: center;
  margin: 48px 0 16px;
  @media (max-width: 641px) {
    line-height: calc(36 / 22);
    margin: 26px 0 2px;
  }
}
.about_design h3 + p {
  font-size: var(--fz16);
  text-align: center;
  margin: 16px 0 0;
  line-height: calc(28 / 16);
  letter-spacing: -0.07em; /* 2行に収めるため */
  @media (max-width: 641px) {
    line-height: calc(24 / 16);
    margin: 3px 0 0;
  }
}
.img-wrapper {
  margin: 64px auto 48px;
  @media (max-width: 641px) {
    margin: 48px auto 32px;
  }
}
.bg-gray article {
  position: relative;
}

.bg-gray article:not(:last-of-type)::after {
  content: "";
  display: inline-block;
  width: 100%;
  background-image: url(../img/about_design/section-border.svg);
  background-size: contain;
  background-repeat: no-repeat;
  aspect-ratio: 300 / 30;
  margin: 32px 0;
  @media (max-width: 641px) {
    margin: 61px 0 46px;
  }
}
.bg-gray h2 + p.is-lead {
  @media (max-width: 641px) {
    padding: 0;
  }
}
.bg-gray article:last-of-type .img-wrapper {
  @media (max-width: 641px) {
    margin: 48px auto 24px;
  }
}

.bg-gray article:last-of-type .img-wrapper + h2 {
  @media (max-width: 641px) {
    font-size: var(--fz22);
    line-height: calc(36 / 22);
  }
}
.bg-gray article:last-of-type .img-wrapper + h2 + p.is-lead {
  @media (max-width: 641px) {
    text-align: center;
    margin: 4px 0 44px;
  }
}
.bg-gray .c-lg-4.c-xs-12:not(:last-of-type) {
  @media (max-width: 641px) {
    margin-bottom: 28px;
  }
}
.is-quotation {
  display: flex;
  justify-content: center;
  @media (max-width: 641px) {
    margin-bottom: 0;
  }
}
.is-quotation span {
  position: relative;
  text-align: center;
  margin-top: 48px;
  margin-bottom: 13px;
  padding: 0 35px;
  @media (max-width: 641px) {
    margin-top: 10px;
  }
}
.is-quotation span::before,
.is-quotation span::after {
  content: "";
  display: inline-block;
  width: 11px;
  height: 9.78px;
  background-image: url(../img/about_design/icon-quotation.svg);
  background-size: contain;
  background-repeat: no-repeat;
  aspect-ratio: 11 / 9.78;
  position: absolute;
}
.is-quotation span::before {
  top: 5px;
  left: 0;
  transform: translateY(-100%);
}
.is-quotation span::after {
  right: 0;
  bottom: 5px;
  transform: translateY(100%) rotate(180deg);
}

.bg-white .img-wrapper {
  margin-top: 58px;
  padding: 0 15px;
}
.bg-white article:not(:last-of-type)::after {
  content: "";
  display: inline-block;
  width: 100%;
  height: 1px;
  margin: 120px 0 48px;
  background-color: var(--border-gray);
  @media (max-width: 641px) {
    display: none;
  }
}
.bg-white .c-lg-4 {
  text-align: center;
  @media (max-width: 641px) {
    background-color: #fff;
    padding-bottom: 29px;
  }
}
.bg-white .c-lg-4 img {
  margin-bottom: 48px;
  @media (max-width: 641px) {
    margin-bottom: 39px;
  }
}
.bg-white .c-lg-4 .product-name,
.bg-white .c-lg-4 .series-name,
.bg-white .c-lg-4 .award-name {
  font-feature-settings: initial;
  margin: 8px 0;
}
.bg-white .c-lg-4 p:last-of-type {
  margin-bottom: 0;
}
.bg-white .c-lg-4 .product-name {
  font-size: var(--fz11);
  line-height: 150%;
}

.bg-white .c-lg-4 .series-name {
  font-size: var(--fz16);
  line-height: 170%;
  line-height: calc(19.2 / 16);
}

.bg-white .c-lg-4 .award-name {
  font-size: var(--fz16);
  line-height: 170%;
  font-weight: var(--fw-medium);
}

/* slider */
#slide-main02.swiper-container {
  width: 100%;
  max-width: 100%;
  padding-bottom: 60px;
  overflow: hidden;
  @media (max-width: 641px) {
    padding-bottom: 63px;
  }
}

#slide-main02 .swiper-slide {
  display: flex;
  width: 33.33%;
  @media (max-width: 641px) {
    display: block;
    width: 100%;
    padding: 0 20px;
  }
}

.bg-gray-sp {
  @media (max-width: 641px) {
    background-color: var(--bg-gray);
    margin: 0 calc(50% - 50vw);
    padding: 104px 0 120px;
  }
}

.swiper-button-prev,
.swiper-button-next {
  position: absolute;
  @media (max-width: 641px) {
    width: 48px;
    height: 48px;
  }
}
.swiper-button-prev {
  transform: rotate(180deg);
  left: 20px;
}
.swiper-button-next {
  right: 20px;
}

/* about_design ページ専用のSwiper矢印画像差し替え */
.page-ad .swiper-button-prev {
  background-image: url("../img/arw_ad.png") !important;
}

.page-ad .swiper-button-next {
  background-image: url("../img/arw_ad.png") !important;
}