@charset "utf-8";

/*===========================================
  common
===========================================*/
:root {
  --padding-side: 4.86vw;
  --padding-vertical: 200px;
  --margin-xs: 10px;
  --margin-sm: 20px;
  --margin-md: 30px;
  --margin-lg: 50px;
  --margin-xl: 70px;
  --margin-2xl: 100px;
  --color-white: #fff;
  --color-black: #202020;
  --color-gray: #5c5c5c;
  --color-red: #e86565;
  --color-navy: #22488f;
  --color-blue: #2c6da5;
  --color-skyblue: #51a0bf;
  --color-lightblue: #e6f3f8;
}

@media (max-width: 768px) {
  :root {
    --padding-side: 3.47vw;
    --padding-vertical: 200px;
    --margin-lg: 40px;
    --margin-xl: 50px;
    --margin-2xl: 80px;
  }
}

@media (max-width: 440px) {
  :root {
    --padding-side: 4.54vw;
    --padding-vertical: 150px;
  }
}

html {
  font-size: 62.5%;
}

body {
  font-family: "Zen Kaku Gothic New", sans-serif;
  font-size: 1.6rem;
  line-height: 2;
  letter-spacing: 0.07em;
  color: var(--color-black);
  overflow-x: hidden;
  overflow-y: auto;
}

@media (max-width: 440px) {
  body {
    font-size: 1.4rem;
  }
}

p {
  margin-bottom: var(--margin-md);
}

p:last-of-type {
  margin-bottom: 0;
}

h1 {
  font-size: 6.4rem;
  font-weight: 500;
  line-height: 1.2;
}

h1 span {
  font-size: 2rem;
  display: block;
}

h1 span::before {
  display: inline-block;
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--color-navy);
  margin-right: var(--margin-xs);
}

h2 {
  font-size: 4.8rem;
  font-weight: 500;
  line-height: 1.2;
  margin-bottom: var(--margin-xl);
}

h2 span {
  font-size: 2rem;
  display: block;
}

h2 span::before {
  display: inline-block;
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--color-red);
  margin-right: var(--margin-xs);
}

.h2_center {
  text-align: center;
}

h3,
h4 {
  font-size: 2rem;
  font-weight: 500;
  margin-bottom: var(--margin-lg);
}

h4 {
  margin-bottom: var(--margin-sm);
}

@media (max-width: 768px) {
  h1 {
    font-size: 4.8rem;
  }

  h1 span {
    font-size: 1.4rem;
  }

  h2 {
    font-size: 3.4rem;
  }

  h2 span {
    font-size: 1.4rem;
  }

  h3,
  h4 {
    font-size: 1.8rem;
  }
}

img {
  width: 100%;
  height: auto;
  object-fit: cover;
  object-position: center;
}

.logo {
  width: 120px;
}

.wrap {
  padding: var(--padding-vertical) var(--padding-side);
}

.inner {
  max-width: 1140px;
}

.logo_wrap {
  padding-top: var(--margin-lg);
  padding-bottom: var(--margin-lg);
}

.img_wave {
  width: 55.55vw;
  position: absolute;
  top: 0;
  right: 0;
  z-index: -1;
}

.btn {
  display: block;
  padding: 10px 30px;
  border-radius: 50px;
  border: 1px solid var(--color-skyblue);
  font-size: 1.2rem;
  width: 200px;
  height: 50px;
  text-align: center;
  color: var(--color-skyblue);
  transition: 0.4s all;
}

.btn span::after {
  content: "→";
  display: inline-block;
  transition: 0.4s all;
}

.btn_center {
  margin: 0 auto;
}

.btn_end {
  margin-right: 0;
  margin-left: auto;
}

.btn_box {
  margin-bottom: var(--margin-xl);
}

.btn:hover {
  background-color: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.6);
}

.btn:hover span::after {
  transform: translateX(10px);
}

.mv_banner {
  height: 600px;
}

@media (max-width: 768px) {
  .img_wave {
    width: 70vw;
  }

  .mv_banner {
    height: 500px;
  }
}

@media (max-width: 440px) {
  .img_wave {
    width: 80vw;
  }

  .mv_banner {
    height: 400px;
  }
}

/*===========================================
  header
===========================================*/
header {
  position: fixed;
  z-index: 100;
  top: 30%;
  right: var(--padding-side);
}

.nav {
  text-align: end;
  font-size: 1.2rem;
  font-weight: 500;
  padding: 20px;
  background-color: rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.nav ul li {
  margin-bottom: 14px;
}

.nav ul li a,
footer ul li a {
  position: relative;
  display: inline-block;
  text-decoration: none;
}

.nav ul li a::after,
footer ul li a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.6s ease;
}

.nav ul li a:hover::after,
footer ul li a:hover::after {
  transform: scaleX(1);
}

.btn_contact {
  display: inline-block;
  padding: 8px 14px;
  margin-top: 6px;
  font-size: 1.2rem;
  color: var(--color-white);
  background-color: var(--color-skyblue);
  transition: 0.4s all;
}

.btn_contact:hover {
  background-color: var(--color-navy);
}

.hamburger {
  display: none;
}

@media (max-width: 768px) {
  header {
    top: 0;
    right: 0;
    width: 100%;
    pointer-events: none;
  }

  .hamburger {
    display: block;
    width: 54px;
    height: 32px;
    padding: 10px;
    border-radius: 20px;
    border: none;
    background: var(--color-skyblue);
    cursor: pointer;
    position: absolute;
    top: 10%;
    right: var(--padding-side);
    z-index: 100;
  }

  .hamburger span {
    position: absolute;
    left: 50%;
    width: 40%;
    height: 1px;
    background: var(--color-white);
    border-radius: 20px;
    transition: 0.4s;
    transform: translateX(-50%);
  }

  .hamburger span:nth-child(1) {
    top: 13px;
  }

  .hamburger span:nth-child(2) {
    top: 19px;
  }

  .hamburger.active span:nth-child(1) {
    width: 30%;
    top: 16px;
    transform: translateX(-50%) rotate(45deg);
  }

  .hamburger.active span:nth-child(2) {
    width: 30%;
    top: 16px;
    transform: translateX(-50%) rotate(-45deg);
  }

  .nav {
    width: 100%;
    height: 100svh;
    background-color: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    transition: 0.4s;
    padding-top: 80px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: 0.4s all;
  }

  .nav.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .nav ul {
    position: absolute;
    top: 30%;
    right: var(--padding-side);
  }

  .nav ul li {
    margin-bottom: 30px;
  }

  .hamburger,
  .nav.active {
    pointer-events: auto;
  }
}

/*===========================================
  footer
===========================================*/
footer {
  font-size: 1.2rem;
  font-weight: 500;
}

.footer_wrap {
  padding-top: var(--margin-2xl);
  padding-bottom: var(--margin-lg);
}

.footer_logo {
  margin-bottom: var(--margin-lg);
}

footer ul {
  margin-bottom: var(--margin-2xl);
}

footer ul li {
  margin-bottom: 14px;
}

/*===========================================
  link section
===========================================*/
.link_wrap {
  background-color: var(--color-lightblue);
}

.link_inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--margin-sm);
}

.link_box {
  padding: 10px;
  background-color: var(--color-white);
}

.link_h2 {
  margin-bottom: var(--margin-lg);
}

.link_text:last-of-type {
  display: inline-block;
  margin-bottom: var(--margin-lg);
}

.link_img {
  margin-bottom: var(--margin-md);
}

@media (max-width: 768px) {
  .link_inner {
    grid-template-columns: 1fr;
  }

  .link_img {
    width: 54%;
  }
}

@media (max-width: 440px) {
  .link_img {
    width: 100%;
  }
}

/*===========================================
  top
===========================================*/
.top_mv_wrap {
  padding-top: 100px;
  padding-bottom: var(--padding-vertical);
}

.top_mv_inner,
.top_about_inner {
  padding-left: var(--margin-xl);
}

.top_mv_cc {
  font-size: 4.8rem;
  font-weight: 500;
  pointer-events: none;
}

.top_mv_cc_blur {
  filter: blur(0.6px);
}

.top_mv_cc_sub {
  display: block;
  line-height: 0.1;
  opacity: 0.6;
  filter: blur(3px);
  transform-origin: bottom center;
  transform: rotateX(150deg);
}

.auto_slider {
  height: calc(33.33vw + 40px);
}

.swiper-wrapper {
  transition-timing-function: linear;
}

.swiper-slide {
  width: 25vw;
  height: 33.33vw;
}

.swiper-slide img {
  height: 100%;
}

.swiper-slide-down {
  transform: translateY(40px);
}

.top_mv_cc,
.auto_slider,
.top_about_text {
  opacity: 0;
  animation: fadeIn 2s forwards;
}

.top_mv_cc {
  animation-delay: 0.4s;
}

.auto_slider,
.top_about_text {
  animation-delay: 1.2s;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

.top_mission_wrap {
  background-image: url("../images/top_mission.webp");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.top_mission_box {
  max-width: 500px;
  margin: 0 auto;
}

.top_mission_text {
  margin-bottom: var(--margin-xl);
}

.top_business_text {
  max-width: 560px;
  margin-bottom: var(--margin-xl);
}

.top_business_list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--margin-sm);
}

.top_business_list li {
  padding: 10px;
  background-color: var(--color-lightblue);
}

.top_business_list li h3 {
  margin-bottom: 0;
  text-align: end;
}

.top_business_list li h3::after {
  content: "→";
  background-color: var(--color-white);
  font-size: 1.2rem;
  color: var(--color-skyblue);
  padding: 6px 4px;
  margin-left: var(--margin-xs);
}

.top_business_list li img {
  transition: 0.4s all;
}

.top_business_list li:hover img {
  transform: scale(0.95);
}

.top_divider_wrap {
  position: relative;
  overflow: hidden;
  height: 800px;
}

.top_divider_bg {
  background-image: url("../images/top_divider.webp");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  position: absolute;
  inset: -10%;
  will-change: transform;
}

.top_be_box {
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: var(--margin-2xl);
}

.top_be_text {
  margin-bottom: var(--margin-xl);
}

@media (max-width: 768px) {
  .top_mv_cc {
    font-size: 4.94vw;
  }

  .auto_slider {
    height: calc(380px + 40px);
  }

  .swiper-slide {
    width: 280px;
    height: 380px;
  }

  .top_business_list {
    grid-template-columns: 1fr;
  }

  .top_business_list li {
    width: 90%;
    margin: 0 0 0 auto;
  }

  .top_divider_wrap {
    height: 680px;
  }

  .top_be_box {
    grid-template-columns: 1fr;
    row-gap: var(--margin-xl);
  }

  .top_be_img {
    width: 54%;
  }
}

@media (max-width: 440px) {
  .top_mv_wrap {
    padding-top: 80px;
    padding-bottom: var(--padding-vertical);
  }

  .top_about_wrap {
    padding-top: var(--margin-2xl);
  }

  .top_mv_inner {
    padding-left: var(--margin-md);
    padding-right: var(--margin-md);
  }

  .top_about_inner {
    padding-left: 0;
  }

  .top_mv_cc {
    font-size: 6.36vw;
  }

  .top_be_img {
    width: 80%;
  }
}

/*===========================================
  about
===========================================*/
.about_mv_banner {
  background-image: url("../images/about_mv.webp");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.about_strength_wrap {
  padding-top: var(--padding-vertical);
  padding-bottom: var(--padding-vertical);
}

.about_strength_title_inner {
  padding-right: var(--padding-side);
  padding-left: var(--padding-side);
}

.about_strength_item {
  border-top: 1px solid var(--color-gray);
}

.about_strength_item:last-of-type {
  border-bottom: 1px solid var(--color-gray);
}

.about_strength_item_wrap {
  padding-top: var(--margin-md);
  padding-bottom: var(--margin-xl);
}

.about_strength_point {
  display: inline-block;
  font-weight: 500;
  padding: 5px 30px;
  border-radius: 50px;
  color: var(--color-white);
  background-color: var(--color-blue);
  margin-bottom: var(--margin-xl);
}

.about_strength_point:last-of-type {
  margin-bottom: var(--margin-xl);
}

.about_strength_box {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--margin-2xl);
}

.about_cp_wrap {
  background-image: url("../images/about_cp.webp");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: var(--color-white);
}

.cp_table {
  width: 100%;
}

.cp_table tr {
  border-top: 1px solid #ddd;
}

.cp_table tr:last-of-type {
  border-bottom: 1px solid #ddd;
}

.cp_table th,
.cp_table td {
  padding: 30px 0;
}

.cp_table th {
  padding-right: 30px;
  font-weight: 500;
}

@media (max-width: 768px) {
  .about_strength_box {
    grid-template-columns: 1fr;
    gap: var(--margin-xl);
  }

  .about_strength_box img {
    width: 54%;
    margin: 0 0 0 auto;
  }

  .cp_table,
  .cp_table tbody,
  .cp_table tr,
  .cp_table th,
  .cp_table td {
    display: block;
    width: 100%;
  }

  .cp_table th,
  .cp_table td {
    padding: 20px 0;
  }

  .cp_table th {
    padding-bottom: 0;
    padding-right: 0;
  }
}

@media (max-width: 440px) {
  .about_strength_box img {
    width: 100%;
  }
}

/*===========================================
  business
===========================================*/
.business_mv_banner {
  background-image: url("../images/business_mv.webp");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.business_direction_box {
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: var(--margin-2xl);
}

.business_direction_img {
  display: flex;
  gap: var(--margin-sm);
}

.business_direction_img_01 {
  width: min(14.58vw, 210px);
  height: min(37.5vw, 540px);
  margin-top: var(--margin-xl);
}

.business_direction_img_02 {
  width: min(20.14vw, 290px);
  height: min(37.5vw, 540px);
}

.busiiness_direction_text {
  margin-top: 140px;
}

.business_business_wrap {
  padding-top: var(--margin-2xl);
}

.business_business_box {
  padding: var(--margin-xs);
  margin-bottom: var(--margin-xl);
  background-color: var(--color-lightblue);
}

.business_business_box:last-of-type {
  margin-bottom: 0;
}

.business_business_h3 {
  margin-bottom: var(--margin-xs);
}

.business_business_cover {
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: var(--margin-2xl);
}

@media (max-width: 768px) {
  .business_direction_box {
    grid-template-columns: 1fr;
    row-gap: var(--margin-2xl);
  }

  .business_direction_img_01 {
    width: min(20vw, 260px);
    height: min(45vw, 600px);
  }

  .business_direction_img_02 {
    width: min(26vw, 340px);
    height: min(45vw, 600px);
  }

  .busiiness_direction_text {
    margin-top: 0;
  }

  .business_business_cover {
    grid-template-columns: 1fr;
    row-gap: var(--margin-md);
  }

  .business_business_cover img {
    width: 90%;
  }
}

@media (max-width: 440px) {
  .business_direction_img_01 {
    width: min(28vw, 180px);
    height: min(50vw, 300px);
  }

  .business_direction_img_02 {
    width: min(34vw, 220px);
    height: min(50vw, 300px);
  }

  .business_direction_box {
    row-gap: var(--margin-xl);
  }

  .business_business_wrap {
    padding-top: 0;
  }

  .business_business_cover img {
    width: 100%;
  }
}

/*===========================================
  blue economy
===========================================*/
.be_mv_banner {
  background-image: url("../images/be_mv.webp");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.be_approach_wrap {
  position: relative;
  overflow: hidden;
  color: var(--color-white);
}

.be_approach_bg {
  background-image: url("../images/be_approach.webp");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: var(--color-white);
  width: 100%;
  height: 120%;
  position: absolute;
  top: -10%;
  left: 0;
  will-change: transform;
}

.be_approach_inner {
  position: relative;
  z-index: 1;
}

.be_about_box {
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: var(--margin-2xl);
}

.be_approach_inner {
  max-width: 500px;
}

.be_why_bg {
  background-image: url("../images/be_why_bg.webp");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.be_why_img {
  max-width: 520px;
  margin-bottom: var(--margin-2xl);
}

.be_why_text {
  max-width: 520px;
  margin: 0 auto;
}

@media (max-width: 768px) {
  .be_about_box {
    grid-template-columns: 1fr;
    row-gap: var(--margin-xl);
  }

  .be_about_img {
    width: 90%;
    margin: 0 0 0 auto;
  }
}

/*===========================================
  contact
===========================================*/
.contact_wrap {
  padding-top: 0;
}

.contact_text:last-of-type {
  margin-bottom: var(--margin-xl);
}

.contact_img {
  width: 430px;
}

@media (max-width: 768px) {
  .contact_img {
    width: 80%;
  }
}

@media (max-width: 440px) {
  .contact_img {
    width: 100%;
  }
}

/*=================================================================
  index.php
  ================================================================= */
.index__contents {
  width: 100%;
  height: calc(100svh - 100px);
  display: flex;
  justify-content: center;
  align-items: center;
}

.index__inner {
  text-align: center;
}

.index__inner a {
  text-decoration: underline;
}