@media screen and (min-width: 768px) {
  #top_mv {
    position: relative;
    aspect-ratio: 1440/680;
    width: 100%;
    height: auto;
  }
  #top_mv .text_wrap {
    padding: 180px 0 0 100px;
    margin-bottom: 100px;
    position: relative;
    z-index: 100;
  }
  #top_mv .text_wrap h2 {
    font-size: clamp(52px, 3.33vw, 65px);
    font-weight: 500;
    color: #1b434d;
    letter-spacing: 0.18em;
    line-height: 1.5;
    margin-bottom: 43px;
    padding: 0;
  }
  #top_mv .text_wrap p {
    color: #1b434d;
    font-size: 22px;
    line-height: 1;
    margin: 0;
    padding: 0;
    font-weight: 500;
  }
  #top_mv .img_wrap {
    position: absolute;
    inset: 0 0 auto auto;
    display: flex;
    align-items: start;
    gap: 30px;
  }
  #top_mv .img_wrap .mv_img1 {
    margin-top: 50px;
    width: max(30.56vw, 440px);
    height: auto;
  }
  #top_mv .img_wrap .mv_img2 {
    width: max(36.8vw, 530px);
    height: auto;
  }
  #top_mv .wave_area {
    position: absolute;
    inset: 0;
    z-index: -1;
  }
  #top_mv .wave_area .wave_area_inner {
    width: 100%;
    height: 100%;
    position: relative;
  }
  #top_mv .wave_area .wave_area_inner img {
    position: absolute;
    width: 100%;
    height: auto;
    inset: calc(100% - 160px) 0 auto 0;
  }
  #top_post {
    display: flex;
    justify-content: space-between;
    width: 980px;
    margin: 0 auto;
    padding: 138px 0 145px;
    column-gap: 187px;
  }
  #top_post .left_side {
    padding-top: 27px;
    flex-shrink: 0;
  }
  #top_post .left_side h2 {
    white-space: nowrap;
    font-size: 24px;
    font-weight: 500;
    color: #1b434d;
    line-height: 1;
    margin: 0 auto 60px;
    padding: 0;
    position: relative;
    z-index: 100;
  }
  #top_post .left_side h2 .sub {
    color: #d46a0d;
    font-size: 20px;
    font-weight: 400;
    letter-spacing: 0.02em;
    display: block;
    margin-top: 20px;
  }
  #top_post .left_side .archive_link {
    white-space: nowrap;
    font-size: 14px;
    text-decoration: underline;
    text-underline-offset: 4px;
    display: flex;
    align-items: center;
    column-gap: 13px;
    letter-spacing: 0.04em;
    transition: opacity 0.5s cubic-bezier(0.4, 0, 1, 1);
  }
  #top_post .left_side .archive_link::after {
    content: "";
    width: 8px;
    height: 8px;
    border-right: #d46a0d 1px solid;
    border-bottom: #d46a0d 1px solid;
    transform: rotate(-45deg);
  }
  #top_post .left_side .archive_link:hover {
    opacity: 0.8 !important;
  }
  #top_post .right_side {
    flex-grow: 1;
  }
  #top_post .right_side .post_list {
    margin: 0;
    padding: 0;
    list-style: none;
  }
  #top_post .right_side .post_list li {
    border-bottom: 1px solid #ffffff;
    position: relative;
  }
  #top_post .right_side .post_list li::after {
    content: "";
    width: 100%;
    height: 1px;
    background: #d9d4ce;
    position: absolute;
    inset: auto 0 0 0;
  }
  #top_post .right_side .post_list li a {
    display: flex;
    padding: 24px 0 30px;
    column-gap: 50px;
    align-items: center;
    text-decoration: none;
  }
  #top_post .right_side .post_list li a .date {
    font-size: 14px;
    color: #b7ada0;
    margin: 0;
    font-weight: 500;
    letter-spacing: 0.08em;
  }
  #top_post .right_side .post_list li a .title {
    font-size: 15px;
    line-height: 1.6;
    margin: 0;
    letter-spacing: 0.18em;
  }
  #top_post .right_side .post_list li a:hover {
    text-decoration: none !important;
  }
  #top_post .right_side .post_list li a:hover .title {
    text-decoration: underline;
  }
  #top_about_us {
    background: url("../img/common/gradation/pc/top_bg_aboutus_gradation.jpg") no-repeat;
    background-size: cover;
    box-sizing: border-box;
    position: relative;
    aspect-ratio: 1440/ 1245;
    padding: 150px 0 0;
  }
  #top_about_us h2 {
    width: 980px;
    font-size: 40px;
    font-weight: 500;
    color: #1b434d;
    letter-spacing: 0.12em;
    line-height: 1.5;
    margin: 0 auto 80px;
    padding: 0;
    position: relative;
    z-index: 100;
  }
  #top_about_us h2 .sub {
    color: #d46a0d;
    font-size: 20px;
    font-weight: 500;
    letter-spacing: 0.04em;
    display: block;
    margin-bottom: 11px;
  }
  #top_about_us .text_area {
    width: 980px;
    padding: 0 305px 0 225px;
    margin: 0 auto;
    position: relative;
    z-index: 100;
  }
  #top_about_us .text_area p {
    font-size: 16px;
    color: #1b434d;
    margin: 0 0 50px;
    line-height: 1.875;
    letter-spacing: 0.18em;
    font-feature-settings: "palt";
    font-weight: 400;
  }
  #top_about_us .img_wrap {
    position: absolute;
    inset: 0;
  }
  #top_about_us .img_wrap .about_img1 {
    width: 22.6%;
    height: auto;
    position: absolute;
    inset: 9.64% 0 auto auto;
    z-index: 10;
  }
  #top_about_us .img_wrap .about_img2 {
    width: 19.4%;
    height: auto;
    position: absolute;
    inset: 41.8% auto auto 0;
    z-index: 10;
  }
  #top_about_us .img_wrap .about_img3 {
    width: 36.1%;
    height: auto;
    position: absolute;
    inset: 68.32% 8.33% auto auto;
    z-index: 10;
  }
  #top_about_us .img_wrap .about_wave {
    width: 100%;
    height: auto;
    position: absolute;
    inset: 73.24% 0 auto 0;
  }
  #top_business {
    padding: 175px 0 160px;
  }
  #top_business .philosophy h2 {
    width: 980px;
    font-size: 32px;
    font-weight: 500;
    color: #1b434d;
    letter-spacing: 0.08em;
    line-height: 1.5;
    margin: 0 auto 55px;
    padding: 0;
    position: relative;
    z-index: 100;
  }
  #top_business .philosophy h2 .sub {
    color: #d46a0d;
    font-size: 20px;
    font-weight: 500;
    letter-spacing: 0.02em;
    display: block;
    margin-top: 12px;
  }
  #top_business .philosophy .text_wrap {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin: 0 auto 155px;
    gap: 138px;
    width: 981px;
  }
  #top_business .philosophy .text_wrap h3 {
    font-size: 40px;
    color: #1b434d;
    line-height: 1.6;
    margin: 0;
    min-width: max-content;
    letter-spacing: 0.12em;
    font-weight: 500;
  }
  #top_business .philosophy .text_wrap p {
    font-size: 16px;
    line-height: 1.875;
    margin: 7px 0 0;
    letter-spacing: 0.18em;
    font-feature-settings: "palt";
    font-weight: 400;
  }
  #top_business .business_list {
    list-style: none;
    margin: 0;
    padding: 0;
  }
  #top_business .business_list li {
    display: flex;
    justify-content: space-between;
    margin-bottom: 160px;
  }
  #top_business .business_list li picture {
    display: contents;
  }
  #top_business .business_list li picture img {
    width: 59.7%;
    height: auto;
  }
  #top_business .business_list li .text_wrap {
    padding: 0 120px 0 105px;
  }
  #top_business .business_list li .text_wrap .index {
    display: block;
    color: #d9d4ce;
    border-bottom: 1px solid #d9d4ce;
    padding-bottom: 12px;
    font-size: 15px;
    letter-spacing: 0.04em;
    margin-bottom: 75px;
    width: 100%;
    text-align: right;
    position: relative;
  }
  #top_business .business_list li .text_wrap .index::after {
    content: "";
    width: 100%;
    height: 1px;
    background: #ffffff;
    position: absolute;
    inset: auto 0 -2px 0;
  }
  #top_business .business_list li .text_wrap h3 {
    font-size: 36px;
    font-weight: 500;
    color: #1b434d;
    letter-spacing: 0.12em;
    line-height: 1.5;
    margin: 0 auto 20px;
    padding: 0;
    position: relative;
    z-index: 100;
  }
  #top_business .business_list li .text_wrap h3 .sub {
    color: #d46a0d;
    font-size: 16px;
    font-weight: 500;
    letter-spacing: 0.02em;
    display: block;
    margin-bottom: 5px;
  }
  #top_business .business_list li .text_wrap .name {
    padding-left: 1em;
    font-size: 18px;
    font-weight: 500;
    letter-spacing: 0.12em;
    color: #1b434d;
    position: relative;
    display: block;
    margin-bottom: 33px;
  }
  #top_business .business_list li .text_wrap .name::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 100%;
    background: #d46a0d;
    position: absolute;
    inset: calc(50% + 2px) auto auto 0;
    transform: translateY(-50%);
  }
  #top_business .business_list li .text_wrap p {
    font-feature-settings: "palt";
    font-size: 15px;
    letter-spacing: 0.18em;
    color: #1b434d;
    line-height: 2;
    margin: 0 auto 60px;
    font-weight: 400;
  }
  #top_business .business_list li:nth-of-type(2n) {
    flex-direction: row-reverse;
  }
  #top_business .business_list li:nth-of-type(2n) .text_wrap .index {
    text-align: left;
  }
  #top_contact {
    background: #ffffff;
    width: 1280px;
    height: 640px;
    margin: 0 auto 110px;
    padding: 0 88px 0 150px;
    box-sizing: border-box;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 80px;
  }
  #top_contact .text_wrap {
    padding-bottom: 26px;
  }
  #top_contact .text_wrap h2 {
    font-weight: 500;
    font-size: 40px;
    letter-spacing: 0.12em;
    color: #1b434d;
    line-height: 1.6;
    margin: 0 0 26px;
  }
  #top_contact .text_wrap p {
    font-size: 15px;
    font-feature-settings: "palt";
    letter-spacing: 0.12em;
    line-height: 2;
    margin-bottom: 50px;
    font-weight: 400;
  }
  #top_contact .text_wrap .link_button {
    width: 232px;
    height: 60px;
    font-size: 18px;
    padding-left: 36px;
    letter-spacing: normal;
  }
  #top_staff .contents_wrap {
    width: 1120px;
    margin: 0 auto 102px;
    padding: 265px 0 233px;
    position: relative;
    background: url("../img/top/pc/staff_bg.png") no-repeat center;
    background-size: contain;
  }
  #top_staff .contents_wrap h2 {
    font-size: 32px;
    font-weight: 500;
    color: #1b434d;
    letter-spacing: 0.08em;
    line-height: 1.5;
    margin: 0 auto 55px;
    padding: 0;
    position: relative;
    z-index: 100;
    text-align: center;
  }
  #top_staff .contents_wrap h2 .sub {
    color: #d46a0d;
    font-size: 20px;
    font-weight: 500;
    letter-spacing: 0.02em;
    display: block;
    margin-top: 7px;
  }
  #top_staff .contents_wrap ul {
    display: flex;
    width: 100%;
    gap: 35px;
    justify-content: space-between;
    align-items: center;
    list-style: none;
    margin: 0 auto 75px;
    padding: 0;
  }
  #top_staff .contents_wrap ul li {
    width: auto;
  }
  #top_staff .contents_wrap ul li a {
    text-decoration: none;
  }
  #top_staff .contents_wrap ul li a img {
    width: 350px;
    height: auto;
  }
  #top_staff .contents_wrap ul li a h3 {
    color: #1b434d;
    margin: 15px 0 0;
    font-weight: 500;
  }
  #top_staff .contents_wrap ul li a h3 .job {
    font-size: 14px;
    letter-spacing: 0.12em;
    display: block;
  }
  #top_staff .contents_wrap ul li a h3 .name {
    font-size: 24px;
    letter-spacing: 0.12em;
  }
  #top_staff .contents_wrap .link_button {
    margin: 0 auto;
  }
  #top_recruit .philosophy h2 {
    width: 980px;
    font-size: 32px;
    font-weight: 500;
    color: #1b434d;
    letter-spacing: 0.08em;
    line-height: 1.5;
    margin: 0 auto 55px;
    padding: 0;
    position: relative;
    z-index: 100;
  }
  #top_recruit .philosophy h2 .sub {
    color: #d46a0d;
    font-size: 20px;
    font-weight: 500;
    letter-spacing: 0.02em;
    display: block;
    margin-top: 13px;
  }
  #top_recruit .philosophy .text_wrap {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin: 0 auto;
    gap: 276px;
    width: 981px;
  }
  #top_recruit .philosophy .text_wrap h3 {
    font-size: 40px;
    color: #1b434d;
    line-height: 1.6;
    margin: 0;
    min-width: max-content;
    font-weight: 500;
  }
  #top_recruit .philosophy .text_wrap p {
    font-size: 16px;
    line-height: 1.875;
    margin: 6px 0 65px;
    font-feature-settings: "palt";
    letter-spacing: 0.18em;
    font-weight: 400;
  }
  #top_recruit .img_wrap {
    margin: 260px 0 238px;
    position: relative;
    aspect-ratio: 1440 / 867;
    height: auto;
    width: 100%;
  }
  #top_recruit .img_wrap .recruit_img1 {
    position: absolute;
    inset: 0 auto auto 1.6%;
    width: 27.78%;
    height: auto;
  }
  #top_recruit .img_wrap .recruit_img2 {
    position: absolute;
    inset: 53.06% auto auto 9.72%;
    width: 44.58%;
    height: auto;
  }
  #top_recruit .img_wrap .recruit_img3 {
    position: absolute;
    inset: 7.27% 0 auto auto;
    width: 33.47%;
    height: auto;
  }
  #top_recruit .img_wrap .recruit_wave {
    width: 100%;
    height: auto;
    position: absolute;
    inset: -13.14% 0 auto;
  }
}