@charset "utf-8";
@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@100;300;400;500;700;800,900&family=Noto+Serif+JP:wght@400;500;600&display=swap");
@import url("https://fonts.googleapis.com/css2?family=Montserrat:ital,wght@0,100..900;1,100..900&display=swap");
:root {
  /* ulカラー */
  --clr-bg: #f5f5f5;
  --clr-surface: #fff;
  --clr-surface-accent: #0099cc;
  --clr-surface-accent-sub: #0099cc1a;

  --primary-color: #09c;
  --accent-color: #ffe200;
  --primary-font-color: #263238;
  --note-font-color: #6d7b82;
  --error-font-color: #cf122e;

  --section-bg-color01: #ddecf1;

  --font-family: "Noto Sans JP", Arial, Meiryo, メイリオ, "ヒラギノ角ゴ Pro W3", "Hiragino Kaku Gothic Pro", Helvetica, Verdana, sans-serif;
  --font-family-global: "Montserrat", "Noto Sans JP", Arial, Meiryo, メイリオ, "ヒラギノ角ゴ Pro W3", "Hiragino Kaku Gothic Pro", Helvetica, Verdana, sans-serif;
  /* 20px */
  --primary-font-size: clamp(0.875rem, 0.6071rem + 1.1429vw, 1.25rem);
  --primary-font-weight: 400;
  --headline-font-color: #263238;

  --header-topline-color: #0099cc;
  --header-bottomline-color: #f5f5f5;
  --header-font-color: #333;

  /* 12-16 */
  --header-font-size: clamp(0.75rem, -0.0776rem + 1.7241vw, 1rem);
  /* 12-14 */
  --download-support-font-size: clamp(0.75rem, 0.3362rem + 0.8621vw, 0.875rem);

  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;
  --font-weight-black: 900;

  --section-margin-bottom: 120px;

  /* 76-54 */
  --section-ttl-font-size: clamp(3.375rem, 2.75rem + 2.6667vw, 4.75rem);
  --section-ttl-font-size-span: clamp(1.125rem, 0.9545rem + 0.7273vw, 1.5rem);
}
@media (max-width: 767px) {
  :root {
    --section-margin-bottom: 75px;
  }
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: var(--font-family);
  font-weight: 400;
}

html {
  height: 100%;
}

html {
  scroll-behavior: smooth;
  scroll-padding: 85px;
}

body {
  margin: 0;
  background-color: var(--clr-bg);
  width: 100%;
  height: 100%;
  position: relative;
  font-feature-settings: "palt";
  font-family: var(--font-family);
  font-size: var(--primary-font-size);
  font-weight: var(--primary-font-weight);
}
a {
  cursor: pointer;
}

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

p {
  color: var(--primary-font-color);
  font-family: var(--font-family);
  font-size: var(--primary-font-size);
  font-weight: var(--primary-font-weight);
  line-height: 1.8;
  letter-spacing: 0.03em;
}

img {
  width: 100%;
  max-width: 100%;
}
p.kome {
  margin-left: 1.3em;
  text-indent: -1.34em;
}

/* 共通 */
.pc-only {
  display: block;
}

.sp-only {
  display: none;
}
a:hover {
  opacity: 0.8;
}

.btn {
  display: flex;
  justify-content: center;
  align-items: center;
  padding-block: 0.8em;
  border-radius: 5px;
  font-size: clamp(1rem, 0.5556rem + 0.9259vw, 1.25rem);
  font-weight: bold;
  max-width: 413px;
  color: var(--primary-font-color);
  border: 2px solid var(--primary-color);
  border-radius: 50px;
  position: relative;
  transition: all 0.3s ease;
}
.btn:hover {
  opacity: 1;
  background-color: var(--primary-color) !important;
  color: #fff !important;
  border: 2px solid #fff !important;
}
.btn:hover::after {
  content: url("../images/arrow_right_w.svg") !important;
}

.btn_large {
  width: calc(413 / 1206 * 100%);
  margin-inline: auto;
  padding-block: 1.1em;
  border-radius: 2em;

  font-size: clamp(1rem, 0.5556rem + 0.9259vw, 1.25rem);
  font-weight: var(--font-weight-bold, 700);
}

.btn.arrow_right::after {
  content: url("../images/arrow_right_b.svg");
  display: block;
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-40%);
}
.btn.active_clr {
  background-color: var(--primary-color);
  color: #fff !important;
}
.btn.active_clr:hover {
  opacity: 1;
  background-color: #fff !important;
  color: var(--primary-color) !important;
  border: 2px solid var(--primary-color) !important;
}
.btn.active_clr::after {
  content: url("../images/arrow_right_w.svg");
  display: block;
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-40%);
}
.btn.active_clr:hover::after {
  opacity: 1;
  content: url("../images/arrow_right_b.svg") !important;
}
@media (max-width: 767px) {
  .sp-only {
    display: block;
  }
  .pc-only {
    display: none;
  }
}

.contentsWrapper {
  width: 100%;
  /* max-width: 1366px; */
  margin: 0 auto;
}

@media (min-width: 768px) {
  header {
    width: 100%;
    height: 78px;

    margin: 0 auto;
    border-top: 4px solid var(--header-topline-color);
    border-bottom: 1px solid var(--header-bottomline-color);
    background-color: #fff;
    transition: 0.5s;
    transform: translateY(-100%);
  }
  header .headerInner {
    width: 100%;
    height: 100%;
    max-width: 1366px;
    margin-inline: auto;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    padding-inline: calc(26 / 1366 * 100%);
  }
  header .headerInner .logo {
    display: block;
    width: calc(206 / 1366 * 100%);
    max-width: 206px;
    aspect-ratio: 206 / 43;
    height: auto;
    margin-right: auto;
  }
  header .headerInner .menu_wrapper {
    width: fit-content;
    display: flex;
    align-items: center;
    margin-right: 0;
  }
  header .headerInner .menu-list {
    max-width: 520px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
  }
  header .headerInner .menu-list > li {
    width: calc (1 / 3 * 100%);
    white-space: nowrap;
    position: relative;
    cursor: pointer;
  }

  header .headerInner .menu-list li span {
    display: flex;
    align-items: center;
    font-size: var(--header-font-size);
    font-weight: var(--font-weight-semibold);
    color: var(--header-font-color);
  }
  header .headerInner .menu-list li span::after {
    content: url("../images/ico_arrow_right.svg");
    display: block;
    height: 80%;
    width: auto;
    aspect-ratio: 1;
    margin-left: 4px;
  }
  header .headerInner .menu-list li ul {
    display: block;
    position: absolute;
    top: 180%;
    left: -50%;

    background-color: #fff;
    border-radius: 5px;
    z-index: 100;
    filter: drop-shadow(1px 1px 3px rgba(0, 0, 0, 0.2));
    transform: translateZ(0);
    will-change: filter;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
  }
  header .headerInner .menu-list li:hover ul {
    top: 34px;
    opacity: 1;
    visibility: visible;
    background-color: var(--primary-color);
    border-radius: 15px;
    padding: 15px;
  }
  header .headerInner .menu-list li:hover ul::before {
    content: "";
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    height: 20px;
    background-color: transparent;
  }
  header .headerInner .menu-list li ul li p {
    font-size: 16px;
    font-weight: var(--font-weight-bold);
    color: #fff;
    margin-bottom: 5px;
    cursor: default;
    pointer-events: none;
  }
  header .headerInner .menu-list li ul li:not(:first-child) p {
    margin-top: 20px;
  }
  header .headerInner .menu-list li ul li a {
    display: block;
    font-size: var(--header-font-size);
    font-weight: var(--font-weight-bold);
    color: #fff;
    padding: 10px 10px;
    transition: 0.3s;
  }
  header .headerInner .menu-list li ul li a:hover {
    background-color: var(--primary-color);
    color: #fff;
  }
  header .headerInner .goto-ricoh {
    width: calc(105 / 1366 * 100%);
    max-width: 105px;
    aspect-ratio: 105 / 49;
    height: auto;
    margin-left: 20px;
  }
  header .toggle {
    display: none;
  }
}
@media (max-width: 1500px) {
  header .headerInner .menu-list li:nth-child(4) ul {
    left: -150%;
  }
}

@media (max-width: 767px) {
  header {
    width: 100%;
    height: 48px;
    margin: 0 auto;
    border-top: 4px solid var(--header-topline-color);
    background-color: #fff;
    z-index: 999;
    transition: 0.5s;
    transform: translateY(-100%);
  }
  header .headerInner {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  header .headerInner .logo {
    display: block;
    width: 147px;
    max-width: initial;
    aspect-ratio: 147 / 18;
    height: auto;
    margin-right: auto;
  }
  header .headerInner .menu_wrapper {
    display: none;
  }
  header .headerInner .goto-ricoh {
    width: 61px;
    max-width: 61px;
    aspect-ratio: 61 / 21;
    height: auto;
    margin-left: 20px;
  }
  .toggle {
    display: block;
    width: 48px;
    height: 48px;
    background: #fff;
    background: 0 5px 10px rgba(0, 0, 0, 0.5);
    border-radius: 2px;
    cursor: pointer;
    position: relative;
  }

  .toggle span {
    position: absolute;
    width: 32px;
    height: 2px;
    background: var(--primary-color);
    display: block;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    box-shadow: 0 2px 2px rgba(0, 0, 0, 0.2);
    border-radius: 2px;
    transition: 0.2s;
    transition-delay: 0.5s;
  }

  .toggle span::before {
    content: "";
    position: absolute;
    width: 100%;
    height: 100%;
    background: var(--primary-color);
    display: block;
    top: -7px;
    left: 0;
    box-shadow: 0 2px 2px rgba(0, 0, 0, 0.2);
    border-radius: 2px;
    transition-property: top, transform;
    transition-delay: 0.5s, 0s;
    transition-duration: 0.5s, 0.5s;
  }

  .toggle span::after {
    content: "";
    position: absolute;
    width: 100%;
    height: 100%;
    background: var(--primary-color);
    display: block;
    top: 7px;
    left: 0;
    box-shadow: 0 2px 2px rgba(0, 0, 0, 0.2);
    border-radius: 2px;
    transition-property: top, transform;
    transition-delay: 0.5s, 0s;
    transition-duration: 0.5s, 0.5s;
  }
  .active .toggle span::before {
    top: 0;
    transform: rotate(30deg);
    transition-delay: 0s, 0.3s;
  }

  .active .toggle span::after {
    top: 0;
    transform: rotate(-30deg);
    transition-delay: 0s, 0.3s;
  }

  .active .toggle span {
    background: transparent;
    box-shadow: 0 2px 2px rgba(0, 0, 0, 0);
  }
  header.active {
    height: 100vh;
    overflow: hidden;
    background-color: #fff;
    z-index: 100;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    max-width: 100%;
    max-height: 100%;
    overflow: hidden;
    overflow-y: auto;
    overflow-x: hidden;
  }

  header.active .headerInner .logo {
    position: fixed;
    top: 13px;
    left: 0;
  }
  header.active .headerInner .goto-ricoh {
    position: fixed;
    top: 13.5px;
    right: 48px;
  }
  header.active .headerInner .toggle {
    position: fixed;
    top: 5px;
    right: 0;
  }
  header.active .menu_wrapper {
    display: block;
    position: absolute;
    top: 50px;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    max-width: 100%;
    max-height: 100%;
  }
  /* メニュー部 */
  .menu_wrapper {
    padding-top: 30px;
    z-index: -1;
  }
  .menu_wrapper ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
  }
  .menu_wrapper ul li {
    width: 100%;
    display: flex;
    flex-direction: column;
  }
  .menu_wrapper ul li span {
    font-size: 16px;
    font-weight: var(--font-weight-bold);
    padding-bottom: 1em;
    border-bottom: 1px solid var(--primary-color);
    margin-bottom: 1em;
    margin-inline: 15px;
    display: flex;
    align-items: center;
    letter-spacing: 0.03em;
    cursor: pointer;
    position: relative;
  }
  .menu_wrapper ul li span::after {
    content: "";
    display: block;
    width: 18px;
    height: 2px;
    background-color: var(--primary-font-color);
    aspect-ratio: 1;
    margin-left: auto;

    position: absolute;
    right: 0;
    top: 25%;
  }
  .menu_wrapper ul li span::before {
    content: "";
    display: block;
    width: 2px;
    height: 18px;
    background-color: var(--primary-font-color);
    aspect-ratio: 1;
    margin-right: 0;
    position: absolute;
    right: 8px;
    top: 30%;
    transform: translateY(-50%);
    transition: 0.3s ease;
  }

  .menu_wrapper ul li .accordion {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.3s ease;
  }
  .sp_back {
    display: none;
  }
  header.active .sp_back {
    display: block;
    position: fixed;
    top: 4px;
    left: 0;
    width: 100%;
    height: 45px;
    background-color: #fff;
  }
  .menu_wrapper ul li.active .accordion {
    grid-template-rows: 1fr;
    margin-bottom: 2em;
  }
  .menu_wrapper ul li .accordion ul {
    overflow: hidden;
    display: none;
  }
  .menu_wrapper ul li.active .accordion ul {
    display: block;
  }
  .menu_wrapper ul li.active .accordion ul:last-child {
    margin-top: 0;
  }
  .menu_wrapper ul li.active span::before {
    opacity: 0;
  }
  .menu_wrapper ul li ul li p {
    font-size: 16px;
    font-weight: var(--font-weight-bold);
    color: var(--primary-font-color);
    margin-bottom: 5px;
    margin-left: 15px;
    cursor: default;
    pointer-events: none;
  }
  .menu_wrapper ul li ul li:not(:first-child) p {
    margin-top: 20px;
  }
  .menu_wrapper ul li ul li a {
    font-size: 16px;
    font-weight: var(--font-weight-normal);
    color: var(--primary-font-color);
    padding: 5px 10px;
    transition: 0.3s;
    padding-inline: 15px;
    margin-inline: 15px;
  }
  .menu_wrapper ul li ul li a:hover {
    background-color: var(--primary-color);
    color: #fff;
  }

  /* ここまでスマホ */
}

.arrow {
  background-color: #0099cc;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 6px;
  width: fit-content;
  border-radius: 50%;
}
.arrow span {
  --arrow-clr: #fff;
  position: relative;
  display: inline-block;
  width: 14px;
  height: 2px;
  margin: 5px 0;
  border-radius: 9999px;
  background-color: var(--arrow-clr);
}

.arrow span::before,
.arrow span::after {
  content: "";
  position: absolute;
  top: calc(50% - 1px);
  right: 0;
  width: 8px;
  height: 2px;
  border-radius: 9999px;
  background-color: var(--arrow-clr);
  transform-origin: calc(100% - 1px) 50%;
}

.arrow span::before {
  transform: rotate(45deg);
}

.arrow span::after {
  transform: rotate(-45deg);
}

/* セクション */
section {
  width: 100%;
  max-width: 1366px;
  margin-inline: auto;
}
section .section_ttl_inner {
  width: 100%;
  max-width: 1366px;
  margin-inline: auto;
  padding-inline: calc(80 / 1366 * 100%);
  margin-bottom: calc(55 / 1366 * 100%);
}
section .section_inner {
  width: 100%;
  max-width: 1366px;
  margin-inline: auto;
  padding-inline: calc(80 / 1366 * 100%);
}

section h2.section_ttl {
  font-size: var(--section-ttl-font-size);
  font-weight: var(--font-weight-bold, 700);
  color: var(--primary-color);
  font-family: var(--font-family-global);
  line-height: 1.2;
  margin-bottom: 20px;
  display: flex;
  align-items: end;
  flex-wrap: wrap;
  justify-content: start;
  gap: 10px;
  position: relative;
  z-index: 0;
}

section h2.section_ttl::before {
  content: "";
  display: block;
  width: calc(48 / 1206 * 100%);
  aspect-ratio: 1;
  background-color: var(--accent-color);
  position: absolute;
  border-radius: 50%;
  top: 5%;
  left: 0;
  transform: translateX(-40%);
  z-index: -1;
}
section h2.section_ttl span {
  font-size: var(--section-ttl-font-size-span);
  font-weight: var(--font-weight-bold, 700);
  color: var(--primary-font-color);
  font-family: var(--font-family);
  line-height: 1.5;
  display: inline-block;
  padding-bottom: 0.2em;
}

/* YouTube */
.video-wrap {
  width: 100%;
  font-size: 0;
}
.video-wrap iframe {
  margin: 2em 0;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
}

@media (min-width: 768px) {
  footer {
    width: 100%;
    height: auto;
    background-color: #434547;
    padding-top: 55px;
    padding-bottom: 1em;
  }
  footer .section_inner {
    width: 100%;
    max-width: 1366px;
    margin-inline: auto;
  }
  footer .section_inner .contents_inner_wrap {
    width: 100%;
    height: auto;
    display: block;
    max-width: 1366px;
    padding-inline: calc(80 / 1366 * 100%);
  }
  footer .section_inner .contents_inner_wrap .menu_wrapper {
    display: block;
  }
  footer .section_inner .menu_wrapper ul.menu-list {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
  }
  footer .section_inner .menu_wrapper ul.menu-list > li {
    width: calc(1 / 4 * 100% - 20px);
  }
  footer .section_inner .menu_wrapper ul.menu-list > li:nth-child(3) {
    width: calc(1 / 2 * 100% - 20px);
  }
  footer .section_inner .menu_wrapper ul.menu-list > li:nth-child(3) .accordion {
    display: flex;
  }
  footer .section_inner .menu_wrapper ul.menu-list > li:nth-child(3) .accordion ul {
    width: calc(1 / 2 * 100% - 20px);
  }
  footer .section_inner .menu_wrapper ul.menu-list > li:nth-child(3) .accordion ul li {
    width: 100%;
  }
  footer .section_inner .menu_wrapper ul.menu-list > li ul li {
    margin-bottom: 1em;
  }
  footer .section_inner .menu_wrapper ul.menu-list > li ul li p {
    font-size: 14px;
    font-weight: var(--font-weight-bold, 700);
    color: #fff;
    margin-bottom: 5px;
    cursor: default;
    pointer-events: none;
  }
  footer .section_inner .menu_wrapper ul.menu-list > li:nth-child(4) {
    margin-top: -5em;
  }
  footer .section_inner .menu_wrapper ul.menu-list li span {
    display: block;
    font-size: 16px;
    font-weight: var(--font-weight-bold, 700);
    color: #fff;
    text-decoration: none;
    transition: 0.3s;
    border-bottom: 1px solid var(--primary-color);
    padding-bottom: 0.8em;
    margin-bottom: 1.2em;
    letter-spacing: 0.06em;
  }
  footer .section_inner .menu_wrapper ul.menu-list li a {
    font-size: 14px;
    font-weight: var(--font-weight-normal, 400);
    color: #fff;
    text-decoration: none;
    transition: 0.3s;
    display: flex;
    align-items: center;
  }
  footer .section_inner .menu_wrapper ul.menu-list li a::before {
    content: "";
    display: block;
    width: 4px;
    height: 1px;
    background-color: var(--primary-color);
    margin-right: 10px;
  }
  footer .section_inner .menu_wrapper ul.menu-list li a:hover {
    color: var(--primary-color);
    text-decoration: underline;
  }
  footer .section_inner .btm_navi_wrap {
    width: 100%;
    margin-top: 30px;
    display: flex;
    gap: 20px;
    border-top: 1px solid var(--primary-color);
    padding-top: 1em;
  }
  footer .section_inner .btm_navi_wrap a {
    font-size: 14px;
    font-weight: var(--font-weight-normal, 400);
    color: #fff;
    text-decoration: none;
    transition: 0.3s;
  }
  footer .section_inner .btm_navi_wrap a:last-child {
    margin-left: auto;
    width: 85px;
    max-width: 85px;
    aspect-ratio: 85 / 29;
    height: auto;
  }

  footer .footer-ricoh-logo {
    display: block;
    width: 100%;
    height: auto;
    object-fit: contain;
  }
  footer .copy {
    display: block;
    width: 100px;
    margin-inline: auto;
    font-size: 14px;
    font-weight: var(--font-weight-normal, 400);
    color: #fff;
    margin-top: 1em;
  }
}

.start_smartphone {
  display: block;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  max-width: 1366px;
  height: 100vh;
  margin-inline: auto;
  z-index: 9;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}
.start_smartphone.active {
  opacity: 1;
  visibility: visible;
}
.start_smartphone .btn_group {
  position: absolute;
  top: 20%;
  right: 0;
}
.start_smartphone a.btn_go {
  display: flex;
  align-items: center;
  width: 56px;
  /* height: 212px; */
  font-size: 16px;
  font-weight: var(--font-weight-bold, 700);
  color: var(--primary-font-color);
  letter-spacing: 0.03em;
  padding-inline: 10px;
  background-color: var(--accent-color);
  border-radius: 15px 0 0 15px;
  pointer-events: all;
  transition: all 0.3s ease;
  border: 2px solid var(--accent-color);
}
.start_smartphone a.btn_go:hover {
  opacity: 1;
  background-color: #fff;
  border: 2px solid var(--accent-color);
}
.start_smartphone a.btn_close {
  display: block;
  font-size: 24px;
  color: #17549d !important;
  font-weight: var(--font-weight-normal, 400) !important;
  text-align: center;
  margin-bottom: 0.2em;
  pointer-events: all;
}
.start_smartphone a.btn_go::after {
  content: url("../images/arrow_right_w.svg");
  display: block;
  margin-top: 5px;
}
.start_smartphone a.btn_go:hover::after {
  content: url("../images/arrow_right_b.svg");
}
.writing-vertical {
  writing-mode: vertical-rl;
  text-orientation: mixed;
}

/* トップへ戻る */
.pagetop {
  position: fixed;
  bottom: 0;
  left: 0;
  z-index: 10;
  width: 100%;
  display: none;
}
.pagetop__inner {
  position: relative;
  width: min(1240px, 100%);
  margin: 0 auto;
}
.pagetop .btn-top {
  position: absolute;
  bottom: 50px;
  right: 0px;
  min-width: 0;
  margin: 0;
  padding: 0;
  width: 64px;
  height: 64px;
  border-radius: 50%;
}
.pagetop .btn-top span {
  font-size: 0;
  display: block;
  width: 100%;
  height: 100%;
}
.pagetop .btn-top span::before {
  display: block;
  content: "";
  width: 100%;
  height: 100%;
  background: url("../images/arrow_w.svg") center center no-repeat;
  background-size: 30%;
}
.btn--primary {
  background: var(--primary-color);
  color: #fff;
}
@media (max-width: 767px) {
  section h2.section_ttl {
    white-space: normal;
    word-break: break-all;
  }
  .start_smartphone .btn_group {
    position: absolute;
    top: initial;
    bottom: 20%;
    right: 0;
  }
  .start_smartphone a.btn_go {
    display: flex;
    align-items: center;
    flex-direction: column;
    width: 85px;
    font-size: 14px;
    font-weight: var(--font-weight-bold, 700);
    color: var(--primary-font-color);
    letter-spacing: 0.03em;
    padding-inline: 10px;
    background-color: var(--accent-color);
    border-radius: 15px 0 0 15px;
    padding-block: 10px;
    border: 2px solid var(--accent-color);
  }
  .writing-vertical {
    writing-mode: horizontal-tb;
    text-orientation: mixed;
  }
  .start_smartphone a.btn_close {
    display: block;
    font-size: 24px;
    color: var(--primary-font-color);
    text-align: right;
    margin-bottom: 0.2em;
    margin-right: 10px;
    pointer-events: all;
  }

  .pagetop .btn-top {
    position: absolute;
    bottom: 50px;
    right: 0px;
    width: 48px;
    height: 48px;
  }
  footer {
    width: 100%;
    height: auto;
    background-color: #434547;
    padding-top: 55px;
    padding-bottom: 0;
  }
  footer * {
    color: #fff;
  }
  footer a {
    color: #fff;
  }
  footer .menu_wrapper ul li ul li p {
    font-size: 14px;
    font-weight: var(--font-weight-bold);
    color: #fff;
    margin-bottom: 5px;
    margin-left: 15px;
    cursor: default;
    pointer-events: none;
  }
  footer .menu_wrapper ul li ul li a {
    font-size: 14px;
    font-weight: var(--font-weight-normal);
    color: #fff;
    padding: 5px 10px;
    transition: 0.3s;
    padding-inline: 15px;
    margin-inline: 15px;
  }
  footer .menu_wrapper ul li span::before {
    content: "";
    display: block;
    width: 2px;
    height: 18px;
    background-color: #fff;
    aspect-ratio: 1;
    margin-right: 0;
    position: absolute;
    right: 8px;
    top: 30%;
    transform: translateY(-50%);
    transition: 0.3s ease;
  }
  footer .menu_wrapper ul li span::after {
    content: "";
    display: block;
    width: 18px;
    height: 2px;
    background-color: #fff;
    aspect-ratio: 1;
    margin-left: auto;
    position: absolute;
    right: 0;
    top: 25%;
  }
  footer {
    position: relative;
  }
  footer .section_inner .btm_navi_wrap {
    width: 100%;
    margin-top: 0;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
    border-top: none;
    padding-top: calc(35 / 375 * 100%);
    padding-inline: 15px;
    padding-bottom: 80px;
  }
  footer .section_inner .btm_navi_wrap a {
    color: #fff;
    width: 45%;
  }
  footer .section_inner .btm_navi_wrap a:last-child {
    display: block;
    margin-left: auto;
    width: 85px;
    max-width: 85px;
    aspect-ratio: 85 / 29;
    height: auto;
    position: absolute;
    bottom: 5px;
    right: 15px;
  }

  footer .footer-ricoh-logo {
    display: block;
    width: 100%;
    height: auto;
    object-fit: contain;
  }
  footer .copy {
    display: block;
    width: 100px;
    margin-inline: auto;
    font-size: 14px;
    font-weight: var(--font-weight-normal, 400);
    color: #fff;
    margin-top: 1em;
    position: absolute;
    bottom: 5px;
    left: 15px;
    font-size: 10px;
    font-weight: var(--font-weight-normal, 400);
  }
}

header.fixed {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transform: translateY(0);
  transition: 0.5s ease-in-out;
}