@charset "UTF-8";
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
}

body {
  font-family: "Meiryo", "メイリオ", sans-serif;
  line-height: 1.6;
  color: #343a40;
  background-color: #ffffff;
}

ul,
ol {
  list-style: none;
}

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

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

input,
textarea,
select {
  border: none;
  outline: none;
}

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

* {
  text-shadow: none !important;
  -webkit-text-stroke: none !important;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 15px;
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
}

h4 {
  font-size: 1.25rem;
}

h5 {
  font-size: 1.1rem;
}

h6 {
  font-size: 1rem;
}

@media (max-width: 960px) {
  h2 {
    font-size: 1.25rem;
  }
}
a {
  transition: color 0.3s ease;
}
a:hover {
  color: #007bff;
}

button {
  font-family: inherit;
  font-size: inherit;
  transition: all 0.3s ease;
}

input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.l-sidebar {
  position: fixed;
  left: 0;
  top: 0;
  width: 300px;
  height: 100vh;
  background-color: #ffffff;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  z-index: 1000;
}

@media (max-width: 960px) {
  .l-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 72px;
    z-index: 1020;
    background-color: #ffffff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  }
  .l-sidebar.is-open .c-sidebar__nav,
  .l-sidebar.is-open .c-sidebar__social {
    padding-top: 20px;
    transform: translateX(0);
    visibility: visible;
    opacity: 1;
    transition: transform 0.5s ease, visibility 0s, opacity 0.5s ease;
  }
  .l-sidebar.is-open .c-sidebar__nav-link,
  .l-sidebar.is-open .c-sidebar__social-link {
    padding-left: 20px;
  }
}
.l-hero-video {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  z-index: -1;
}

.l-section--gray {
  background-color: rgba(248, 249, 250, 0.8);
  backdrop-filter: blur(5px);
}

@media (max-width: 960px) {
  .l-hero-video {
    height: 600px;
  }
}
.l-intro-section {
  width: 100%;
  overflow: visible;
  background: transparent linear-gradient(360deg, rgba(0, 0, 0, 0.8) 0%, rgba(80, 80, 80, 0.7019607843) 46%, rgba(84, 84, 84, 0.3019607843) 100%) 0% 0% no-repeat padding-box;
  transform: matrix(1, 0, 0, 1, 0, 0);
  opacity: 1;
}

.l-flow-section {
  width: 100%;
  overflow: visible;
  background-color: #ffffff;
}

.l-contact-section {
  width: 100%;
  background-color: #ffffff;
}

@media (max-width: 960px) {
  .l-contact-section {
    height: auto;
  }
}
.l-footer {
  width: 100%;
  height: 160px;
  background-color: #343a40;
}

@media (max-width: 960px) {
  .l-footer {
    min-height: 160px;
  }
}
.l-main {
  margin-top: 600px;
  margin-left: 300px;
  min-height: 100vh;
  background-color: transparent;
  z-index: 1;
}

.l-section {
  padding: 60px 0;
}
.l-section--hero {
  padding: 80px 0;
}
.l-section--gray {
  background-color: #f8f9fa;
}

.l-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

@media (max-width: 960px) {
  .l-main {
    margin-left: 0px;
  }
  .l-section {
    padding: 30px 0;
  }
  .l-section--hero {
    padding: 60px 0;
  }
}
.l-grid {
  display: grid;
  gap: 30px;
}
.l-grid--2 {
  grid-template-columns: repeat(2, 1fr);
}
.l-grid--3 {
  grid-template-columns: repeat(3, 1fr);
}
.l-grid--auto {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.l-flex {
  display: flex;
}
.l-flex--center {
  justify-content: center;
  align-items: center;
}
.l-flex--between {
  justify-content: space-between;
  align-items: center;
}
.l-flex--column {
  flex-direction: column;
}

@media (max-width: 960px) {
  .l-grid {
    gap: 20px;
  }
  .l-grid--2, .l-grid--3 {
    grid-template-columns: 1fr;
  }
  .l-flex--column-mobile {
    flex-direction: column;
  }
}
.c-sidebar {
  height: 100%;
  padding: 45px;
}
.c-sidebar__logo {
  margin-bottom: 40px;
  text-align: center;
}
.c-sidebar__logo-image {
  height: 60px;
  width: auto;
  max-width: 100%;
}
.c-sidebar__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 30px;
  height: 30px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  position: absolute;
  top: 20px;
  right: 20px;
  z-index: 1001;
}
.c-sidebar__hamburger-line {
  width: 20px;
  height: 2px;
  background-color: #343a40;
  margin: 2px 0;
  transition: all 0.3s ease;
  transform-origin: center;
}
.c-sidebar__hamburger.is-active .c-sidebar__hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(4px, 4px);
}
.c-sidebar__hamburger.is-active .c-sidebar__hamburger-line:nth-child(2) {
  opacity: 0;
}
.c-sidebar__hamburger.is-active .c-sidebar__hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}
.c-sidebar__nav {
  flex: 1;
  height: 350px;
}
.c-sidebar__nav-list {
  display: flex;
  flex-direction: column;
  gap: 23px;
}
.c-sidebar__nav-link {
  display: block;
  padding: 0;
  color: #343a40;
  font-weight: 400;
  text-decoration: none;
  transition: color 0.3s ease;
  font-size: 1rem;
}
.c-sidebar__nav-link:hover {
  color: #007bff;
}
.c-sidebar__nav-icon {
  font-size: 1.2rem;
  width: 24px;
  text-align: center;
}
.c-sidebar__nav-text {
  font-size: 1rem;
}
.c-sidebar__social {
  margin-top: auto;
  padding-top: 30px;
}
.c-sidebar__social-list {
  display: flex;
  flex-direction: column;
  gap: 23px;
}
.c-sidebar__social-link {
  display: block;
  padding: 0;
  color: #343a40;
  font-weight: 400;
  text-decoration: none;
  transition: color 0.3s ease;
  font-size: 1rem;
}
.c-sidebar__social-link:hover {
  color: #007bff;
}

@media (max-width: 960px) {
  .c-sidebar {
    height: 100%;
    padding: 0 20px;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
  .c-sidebar__logo {
    margin-bottom: 0;
  }
  .c-sidebar__logo-image {
    height: 60px;
  }
  .c-sidebar__hamburger {
    display: flex;
  }
  .c-sidebar__nav {
    position: fixed;
    top: 72px;
    left: 0;
    width: 300px;
    height: calc(100vh - 72px);
    background-color: #ffffff;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
    overflow-y: auto;
    transform: translateX(-100%);
    visibility: hidden;
    opacity: 0;
    transition: transform 0.5s ease, visibility 0s 0.5s, opacity 0.5s ease;
  }
  .c-sidebar__social {
    position: fixed;
    top: 422px;
    left: 0;
    width: 300px;
    height: calc(100vh - 422px);
    background-color: #ffffff;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
    overflow-y: auto;
    transform: translateX(-100%);
    visibility: hidden;
    opacity: 0;
    transition: transform 0.5s ease, visibility 0s 0.5s, opacity 0.5s ease;
  }
}
.c-hero-video {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.c-hero-video__element {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
}

.c-intro-section {
  width: 100%;
  max-width: 860px;
  height: 100%;
  margin: 0 auto;
}
.c-intro-section__projects {
  padding-top: 85px;
  margin-bottom: 165px;
  padding-bottom: 20px;
}
.c-intro-section__features {
  padding-bottom: 125px;
}
.c-intro-section__title {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 30px;
  text-align: center;
  color: #ffffff;
  line-height: 1.2;
  position: relative;
}
.c-intro-section__title::before, .c-intro-section__title::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 25%;
  height: 1px;
  background-color: #ffffff;
}
.c-intro-section__title::before {
  left: 0px;
}
.c-intro-section__title::after {
  right: 0px;
}
@media (max-width: 960px) {
  .c-intro-section__title {
    font-size: 1.75rem;
  }
}
.c-intro-section__project-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 50px;
  max-width: 860px;
  margin: 0 0;
}
.c-intro-section__project-item {
  position: relative;
  overflow: hidden;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}
.c-intro-section__project-image {
  width: 405px;
  height: 256px;
  object-fit: cover;
  transition: transform 0.3s ease;
  border: 1px solid white;
}
.c-intro-section__project-item:hover .c-intro-section__project-image {
  transform: scale(1.05);
}
.c-intro-section__project-label {
  position: absolute;
  bottom: 1px;
  left: 1px;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.8));
  color: #ffffff;
  padding: 5px 10px;
  width: 403px;
  font-size: 0.9rem;
}
.c-intro-section__feature-grid {
  display: flex;
  justify-content: center;
  gap: 50px;
  max-width: 860px;
  margin: 0;
}
.c-intro-section__feature-item {
  width: 258px;
  text-align: center;
  color: #ffffff;
}
.c-intro-section__feature-icon {
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  border-radius: 50%;
  background-color: transparent;
  border: 2px solid #ffffff;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}
.c-intro-section__feature-icon-text {
  font-size: 0.8rem;
  color: #ffffff;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.c-intro-section__feature-icon-label {
  font-size: 1rem;
  color: #ffffff;
  font-weight: 600;
  margin: 15px auto 10px;
  text-align: center;
  display: block;
}
.c-intro-section__feature-description {
  font-size: 1rem;
  line-height: 1.5;
  opacity: 0.9;
}

@media (max-width: 960px) {
  .c-intro-section {
    margin: 0 auto;
    padding: 0 20px;
  }
  .c-intro-section__projects {
    margin-bottom: 80px;
    padding-bottom: 10px;
  }
  .c-intro-section__project-grid {
    grid-template-columns: 1fr;
    gap: 50px;
  }
  .c-intro-section__project-image {
    width: 100%;
    height: 100%;
    border: 2px solid white;
    border-radius: 0;
  }
  .c-intro-section__project-label {
    width: 100%;
  }
}
.c-flow-section {
  position: relative;
  width: 100%;
  max-width: 860px;
  display: flex;
  flex-direction: column;
  margin: 0 auto;
}
.c-flow-section__title {
  font-size: 1.75rem;
  font-weight: 700;
  margin-top: 125px;
  margin-bottom: 60px;
  text-align: center;
  color: #343a40;
  line-height: 1.2;
  position: relative;
}
.c-flow-section__title::before, .c-flow-section__title::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 25%;
  height: 1px;
  background-color: #343a40;
}
.c-flow-section__title::before {
  left: 0px;
}
.c-flow-section__title::after {
  right: 0px;
}
@media (max-width: 960px) {
  .c-flow-section__title {
    font-size: 1.75rem;
  }
  .c-flow-section__title::before, .c-flow-section__title::after {
    display: none;
  }
}
.c-flow-section__description {
  font-size: 1.1rem;
  color: #6c757d;
  text-align: center;
  margin-bottom: 60px;
  line-height: 1.6;
}
.c-flow-section__container {
  display: flex;
  align-items: flex-start;
  gap: 40px;
  max-width: 1000px;
  margin: 0 auto;
}
.c-flow-section__flow-diagram {
  position: relative;
  width: 200px;
  margin-right: 60px;
}
.c-flow-section__flow-diagram::before {
  content: "";
  position: absolute;
  top: 55px;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 700px;
  background-color: #FFD700;
  z-index: 1;
}
.c-flow-section__flow-step {
  position: relative;
  margin-bottom: 60px;
  z-index: 2;
}
.c-flow-section__flow-step:last-child {
  margin-bottom: 0;
}
.c-flow-section__flow-number {
  width: 200px;
  height: 110px;
  background-color: #333;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  text-align: center;
  line-height: 1.2;
  position: relative;
  clip-path: polygon(0 0, 100% 0, 100% 80px, 50% 110px, 0 80px);
}
.c-flow-section__steps {
  display: flex;
  flex-direction: column;
  gap: 60px;
  flex: 1;
}
.c-flow-section__step {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  position: relative;
  height: 110px;
}
.c-flow-section__step-number {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: #333;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 700;
  flex-shrink: 0;
}
.c-flow-section__step-content {
  flex: 1;
}
.c-flow-section__step-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: #343a40;
  padding-bottom: 10px;
  margin-bottom: 10px;
  line-height: 1.3;
  border-bottom: 1px solid #343a40;
}
.c-flow-section__step-description {
  font-size: 1rem;
  color: #6c757d;
  line-height: 1.5;
  opacity: 0.8;
}
@media (max-width: 960px) {
  .c-flow-section {
    padding: 15px 40px;
  }
  .c-flow-section__container {
    flex-direction: column;
  }
  .c-flow-section__flow-diagram {
    width: 100%;
    max-width: 295px;
    margin: 0 auto;
  }
  .c-flow-section__flow-number {
    width: 100%;
  }
  .c-flow-section__steps {
    grid-template-columns: 1fr;
    gap: 15px;
  }
  .c-flow-section__step-number {
    width: 50px;
    height: 50px;
    font-size: 1rem;
  }
  .c-flow-section__step-title {
    font-size: 1.1rem;
  }
  .c-flow-section__step-description {
    font-size: 0.85rem;
  }
}

.c-contact-section {
  position: relative;
  width: 100%;
  max-width: 860px;
  display: flex;
  flex-direction: column;
  margin: 0px auto;
  padding-bottom: 160px;
  background-color: #ffffff;
}
.c-contact-section__title {
  font-size: 1.75rem;
  font-weight: 700;
  margin-top: 125px;
  margin-bottom: 60px;
  text-align: center;
  color: #343a40;
  line-height: 1.2;
  position: relative;
}
.c-contact-section__title::before, .c-contact-section__title::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 25%;
  height: 1px;
  background-color: #343a40;
}
.c-contact-section__title::before {
  left: 0px;
}
.c-contact-section__title::after {
  right: 0px;
}
.c-contact-section__description {
  font-size: 1.1rem;
  color: #6c757d;
  text-align: center;
  margin-bottom: 60px;
  line-height: 1.6;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
.c-contact-section__cards {
  display: flex;
  justify-content: center;
  gap: 40px;
  max-width: 600px;
  margin: 0 auto;
}
.c-contact-section__card {
  position: relative;
  width: 256px;
  height: 190px;
  border: 1px solid #343a40;
  background-color: #ffffff;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 30px 20px;
  transition: all 0.3s ease;
  cursor: pointer;
}
.c-contact-section__card:hover {
  transform: translateY(-5px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}
.c-contact-section__card-icon {
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.c-contact-section__card-image {
  width: 60px;
  height: 60px;
  object-fit: contain;
}
.c-contact-section__card-title {
  font-size: 1.2rem;
  font-weight: 600;
  color: #343a40;
  text-align: center;
  margin-bottom: 0;
}
.c-contact-section__card-arrow {
  position: absolute;
  bottom: -20px;
  right: -20px;
  width: 45px;
  height: 45px;
  border-left: 23px solid transparent;
  border-right: 23px solid transparent;
  border-top: 23px solid #343a40;
  transform: rotate(-45deg);
}

@media (max-width: 960px) {
  .c-contact-section {
    padding: 0 20px;
  }
  .c-contact-section__title {
    font-size: 1.75rem;
  }
  .c-contact-section__title::before, .c-contact-section__title::after {
    display: none;
  }
  .c-contact-section__description {
    font-size: 0.95rem;
    margin-bottom: 30px;
    max-width: 400px;
  }
  .c-contact-section__cards {
    flex-direction: column;
    gap: 20px;
    padding-bottom: 120px;
  }
  .c-contact-section__card {
    width: 200px;
    height: 190px;
    padding: 20px;
  }
  .c-contact-section__card-image {
    width: 64px;
    height: 64px;
  }
  .c-contact-section__card-title {
    font-size: 1rem;
  }
}
.c-footer {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  background-color: #343a40;
}
.c-footer__nav {
  margin-bottom: 30px;
}
.c-footer__nav-list {
  display: flex;
  align-items: center;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
}
.c-footer__nav-item {
  position: relative;
}
.c-footer__nav-item:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 16px;
  background-color: #ffffff;
}
.c-footer__nav-link {
  color: #ffffff;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 400;
  padding: 0 15px;
  transition: color 0.3s ease;
}
.c-footer__nav-link:hover {
  color: #f8f9fa;
}
.c-footer__copyright {
  margin-bottom: 0;
}
.c-footer__copyright p {
  color: #ffffff;
  font-size: 0.8rem;
  text-align: center;
  margin: 0;
  opacity: 0.8;
}
.c-footer__scroll-top {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 40px;
  height: 40px;
  border: 1px solid #ffffff;
  border-radius: 50%;
  background-color: #343a40;
  color: #ffffff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
  z-index: 1000;
}
.c-footer__scroll-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.c-footer__scroll-top:hover {
  background-color: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}
.c-footer__scroll-icon {
  font-size: 14px;
  font-weight: bold;
  line-height: 1;
}

@media (max-width: 960px) {
  .c-footer {
    padding: 25px 15px;
    min-height: 160px;
  }
  .c-footer__nav {
    margin-bottom: 20px;
  }
  .c-footer__nav-list {
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
  }
  .c-footer__nav-link {
    font-size: 0.8rem;
    padding: 5px 10px;
  }
  .c-footer__copyright p {
    font-size: 0.7rem;
  }
  .c-footer__scroll-top {
    width: 32px;
    height: 32px;
    bottom: 12px;
    right: 12px;
  }
  .c-footer__scroll-icon {
    font-size: 11px;
  }
}
.u-text--center {
  text-align: center;
}
.u-text--left {
  text-align: left;
}
.u-text--right {
  text-align: right;
}
.u-text--bold {
  font-weight: 700;
}
.u-text--muted {
  color: #6c757d;
}
.u-text--primary {
  color: #007bff;
}
.u-text--white {
  color: #ffffff;
}

.u-mb--sm {
  margin-bottom: 10px;
}
.u-mb--md {
  margin-bottom: 15px;
}
.u-mb--lg {
  margin-bottom: 20px;
}
.u-mb--xl {
  margin-bottom: 30px;
}

.u-mt--sm {
  margin-top: 10px;
}
.u-mt--md {
  margin-top: 15px;
}
.u-mt--lg {
  margin-top: 20px;
}
.u-mt--xl {
  margin-top: 30px;
}

.u-hidden {
  display: none;
}

.u-visible {
  display: block;
}

@media (max-width: 960px) {
  .u-hidden-mobile {
    display: none;
  }
  .u-visible-mobile {
    display: block;
  }
}

/*# sourceMappingURL=style.css.map */