@media screen and (min-width: 801px) {
  /* =============== common */
  body {
    font-family: "Noto Sans JP", "Zen Kaku Gothic New", sans-serif;
    font-weight: bold;
  }

  /* /////////////// index.html */
    #concept {
      max-width: 1920px;
      padding-top: 90px;
      padding-left: 40px;
      padding-right: 40px;
      margin-left: auto;
      margin-right: auto;
    }
    #skill, #works, #profile {
      max-width: 1920px;
      padding-top: 120px;
      padding-left: 40px;
      padding-right: 40px;
      margin-left: auto;
      margin-right: auto;
    }
    .subtitle {
      display: flex;
      color: #ffffff;
      border-radius: 20px;
      font-family: azo-sans-uber;
      font-weight: 100;
      font-size: 18px;
    }
    .subtitle-sqr {
      display: flex;
      width: 40%;
      background-color: #2778dd;
      border-radius: 20px;
      padding-left: 20px;
      padding-top: 10px;
      padding-bottom: 10px;
      margin-bottom: 20px;
    }
    .viewmore {
      background-color: #e92729;
      width: 220px;
      margin-left: auto;
      margin-right: 0;
      margin-bottom: 20px;
      border-radius: 20px;
      padding-left: 20px;
      padding-top: 10px;
      padding-right: 20px;
      padding-bottom: 10px;
      font-size: 14px;
      text-align: center;
      align-content: center;
    }
    .viewmore-text span {
      font-family: "Noto Sans JP";
      font-weight: bold;
    }

    /* =============== header */
    #header {
      display: flex;
      background-color: #000000;
      color: #ffffff;
      font-size: 14px;
      width: 100%;
      align-items: center;
      padding-right: 30px;
      position: fixed;
      z-index: 999;
      top: 0;
      left: 0;
      width: 100%;
      box-sizing: border-box;
    }
    .rf-logo {
      width: 40px;
      margin-top: 15px;
      margin-bottom: 15px;
      margin-left: 25px;
      margin-right: 25px;
    }
    .rf-textlogo {
      width: 250px;
      height: 21px;
    }
    .header-menu {
      margin-left: auto;
    }
    .header-menu-list {
      display: flex;
    }
    .header-menu-text {
      padding-left: 30px;
    }
    .menu {
      display: none;
    }
    #nav-sp, .menu-pic {
      display: none;
    }  

    /* =============== mainvisual */
    #mainvisual {
      align-items: center;
    }
    .mainvisual-dot {
      margin: auto;
      width: 100%;
      height: 750px;
      background-color: #ffffff;
      background-image: radial-gradient(#000000 36%, transparent 37%), radial-gradient(#000000 36%, transparent 37%);
      background-position: 0 0, 100px 100px;
      background-size: 200px 200px;
      border-left: #000000 30px solid;
      border-right: #000000 30px solid;
      border-bottom: #000000 20px solid;
      position: relative;
    }
    .mainvisual-sqr {
      position: absolute;
      top: 50%;
      transform: translateY(-30%);
      width: 100%;
      height: 180px;
      background-color: #000000;
      text-align: center;
      align-content: center;
    }
    .mainvisual-text {
      margin-left: auto;
      margin-right: auto;
    }

    /* =============== content */
    .content {
      border-left: #000000 30px solid;
      border-right: #000000 30px solid;
      background-color: #f7b63f;
      width: 100%;
    }

    /* =============== concept */
    .subtitle-rfconcept {
      font-family: "Noto Sans JP", sans-serif;
      font-weight: bold;
      margin-left: 10px;
      line-height: 18px;
    }
    .concept-dice {
      text-align: center;
      margin-left: 30px;
      margin-right: 30px;
    }
    .concept-dice-img {
      margin-top: 30px;
      margin-bottom: 20px;
      margin-left: auto;
      margin-right: auto;
      width: 100%;
      max-width: 1200px;
      object-fit: cover;
    }
    .concept-text {
      max-width: 1600px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 30px;
      padding-right: 30px;
      text-align: center;
    }
    .concept-text01 {
      background-color: #ffffff;
      border-radius: 20px;
      color: #2778dd;
      padding-top: 20px;
      padding-bottom: 20px;
      margin-bottom: 10px;
    }
    .concept-text01-01 {
      font-family: azo-sans-uber;
      font-size: 50px;
      font-weight: 100;
    }
    .concept-text01-02 {
      font-size: 20px;
      font-family: Zen Kaku Gothic New;
    }
    .concept-text01-02 span {
      font-family: azo-sans-uber;
      font-weight: 100;
      padding-left: 5px;
      padding-right: 5px; 
    }
    .concept-text02 {
      background-color: rgba(0,0,0,0.3);
      border-radius: 20px;
      color: #ffffff;
      line-height: 30px;
      padding-top: 20px;
      padding-bottom: 30px;
      padding-left: 30px;
      padding-right: 30px;
      position: relative;
    }
    .concept-text02-detail {
      font-family: Zen Kaku Gothic New;
      font-weight: normal;
      font-size: 16px;
    }
    .concept-text02-detail span {
      font-family: azo-sans-uber;
      font-size: 18px;
      padding-left: 5px;
      padding-right: 5px;
    }

    /* =============== skill */
    .skill-list {
      display: flex;
      max-width: 1600px;
      padding-left: 30px;
      padding-right: 30px;
      margin-left: auto;
      margin-right: auto;
      justify-content: space-between;
    }
    .skill-list-item {
      display: flex;
      width: 100%;
      max-width: 1600px;
      text-align: center;
      margin-top: 30px;
      color: #ffffff;
    }
    .skill-sqr {
      align-items: center;
      width: 50%;
      position: relative;
      background-color: #ffffff;
      border-radius: 20px;
      padding-bottom: 30px;
      margin-right: 2%;
    }
    .skill-logo {
      margin-left: auto;
      margin-right: auto;
    }
    .skill-logo-img {
      max-width: 65%;
      padding-left: 10px;
      padding-right: 10px;
      padding-top: 20px;
      padding-bottom: 30px;
    }
    .skill-name {
      background-color: #000000;
      border-radius: 0 0 20px 20px;
      font-size: 14px;
      padding-top: 10px;
      padding-bottom: 8px;
      position: absolute;
      bottom: 0;
      width: 100%;
      height: 40px;
    }

    /* =============== works */
    .works-list {
      width: 100%;
      max-width: 1600px;
      margin-top: 30px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 30px;
      color: #ffffff;
    }
    .works-list > ul {
      display: flex;
      justify-content: space-between;
      margin-right: 50px;
      font-size: 14px;
    }
    .works-sqr {
      width: 33%;
    }
    .works-list-img {
      width: 100%;
      border-radius: 20px 20px 0 0;
      filter: grayscale(100%);
    }
    .works-name {
      display: flex;
    }
    .works-name-title {
      width: 70%;
      background-color: #000000;
      border-radius: 0 0 0 20px;
      padding-top: 10px;
      padding-bottom: 10px;
      text-align: center;
    }
    .works-name-gosite {
      width: 30%;
      background-color: #e92729;
      border-radius: 0 0 20px 0;
      text-align: center;
      align-content: center;
    }

    /* =============== profile */
    #profile {
      padding-bottom: 70px;
    }
    .profile-sqr {
      width: 100%;
      max-width: 1600px;
      margin-top: 30px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 30px;
      display: flex;
      position: relative;
    }
    .profile-pic-area {
      width: 100%;
      border-radius: 20px 20px 20px 20px;
      filter: grayscale(100%);
    }
    .profile-pic {
      width: 60%;
    }
    .profile-detail {
      width: calc(100% - 250px);
      height: 100%;
      margin-left: 20px;
      margin-right: 50px;
    }
    .profile-detail-flame01 {
      display: flex;
      background-color: #000000;
      border-radius: 20px 20px 0 0;
      padding-top: 15px;
      padding-bottom: 15px;
      padding-left: 20px;
      font-size: 30px;
      font-family: azo-sans-uber;
      font-weight: 100;
      color: #ffffff;
      justify-content: space-between;
    }
    .contact-flame {
      display: flex;
      margin-right: 20px;
    }
    .contact-logo {
      width: 35px;
      margin-left: 5px;
    }
    .profile-detail-flame02 {
      background-color: rgba(0,0,0,0.3);
      border-radius: 0 0 20px 20px;
      padding-top: 20px;
      padding-bottom: 20px;
      padding-left: 20px;
      padding-right: 20px;
      font-family: Zen Kaku Gothic New;
      font-weight: normal;
      font-size: 16px;
      color: #ffffff;
      line-height: 30px;
    }
    .contact {
      max-width: 1600px;
      margin-top: 20px;
      margin-left: auto;
      margin-right: auto;
      margin-bottom: 70px;
      background-color: rgba(0,0,0,0.3);
      border-radius: 20px;
      padding-left: 10px;
      padding-top: 10px;
      padding-bottom: 10px;
      padding-right: 10px;
      font-size: 14px;
    }
    .contact-title {
      background-color: #000000;
      color: #ffffff;
      border-color: #000000;
      border-width: 3px;
      border-style: solid;
      padding-top: 10px;
      padding-bottom: 10px;
      padding-left: 15px;
      border-radius: 20px;
      margin-bottom: 10px;
    }
    .contact > form > div {
      display: flex;
      flex-direction: row;
      flex-wrap: wrap;
      padding-bottom: 30px;
    }
    .contact-heading {
      background-color: rgba(0,0,0,0.7);
      color: #ffffff;
      width: 100%;
      padding-top: 10px;
      padding-left: 20px;
      padding-bottom: 10px;
      border-radius: 20px 20px 0 0;
    }
    .contact-textbox {
      border-top: 0;
      border-left: 0;
      border-right: 0;
      border-radius: 0 0 20px 20px;
      background-color: rgb(255,255,255,0.7);
      width: 100%;
      height: 56px;
      padding-left: 20px;
      padding-right: 20px;
      margin-bottom: 5px;
    }
    .contact-textarea {
      border-top: 0;
      border-left: 0;
      border-right: 0;
      border-radius: 0 0 20px 20px;
      background-color: rgb(255,255,255,0.7);
      width: 100%;
      height: 130px;
      padding-left: 20px;
      padding-top: 20px;
      padding-right: 20px;
      resize: none;
      line-height: 18px;
    }
    .send {
      text-align: right;
    }
    .sendbtn {
      background-color: #e92729;
      color: #ffffff;
      padding-top: 8px;
      padding-bottom: 8px;
      border-radius: 20px;
      border: #f7b63f 5px solid;
      margin-top: 10px;
      width: 150px;
      text-align: center; 
    }

    /* =============== footer */
    #footer {
      background-color: #000000;
      color: #ffffff;
      padding-top: 30px;
    }
    .footer-sqr {
      display: flex;
      justify-content: space-between;
      font-weight: bold;
      font-size: 14px;
    }
    .footer-logo {
      margin-bottom: 30px;
    }
    .footer-logo-img {
      width: 400px;
    }
    .footer-nav {
      text-align: right;
      margin-top: 10px;
    }
    .footer-nav-link {
      display: block;
      margin-bottom: 20px;
    }
    .copyright {
      font-size: 12px;
    }


  /* /////////////// subpage_common */
  .subpage-title {
    padding-top: 70px;
    margin-bottom: 50px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 40px;
    padding-right: 40px;
    position: relative;
    max-width: 1920px;
  }
  .subpage-title-sqr {
    width: 40%;
    background-color: #2778dd;
    color: #ffffff;
    font-size: 18px;
    border-radius: 20px;
    padding-left: 20px;
    padding-top: 10px;
    padding-bottom: 10px;
  }
  .subpage-title-text span {
    font-family: azo-sans-uber;
    font-weight: 100;
    padding-right: 5px;
  }
  .subpage-title-logo {
    position: absolute;
    top: 90px;
    right: calc(60% - 15px);
    width: 35px;
    height: 35px;
    border-radius: 50%;
    background-color: #000000;
    padding-top: 8px;
    padding-bottom: 20px;
    text-align: center;
  }
  .subpage-title-logo-img {
    width: 16px;
  }

  /* /////////////// concept.html */
    /* =============== concept-mainvisual */
    #concept-mainvisual {
      width: 100%;
      background-color: #ffffff;
      text-align: center;
      margin-top: 77px;
      position: relative;
    }
    .background-img {
      width: 100%;
      max-width: 1100px;
      padding-left: 30px;
      padding-right: 30px;
      padding-top: 30px;
      padding-bottom: 30px;
    }
    .concept-mainvisual-text {
      width: 100%;
      height: 100%;
      background-color: rgba(0,0,0,0.7);
      border-left: #000000 30px solid;
      border-right: #000000 30px solid;
      position: absolute;
      top: 0;
      left: 0;
      color: #ffffff;
      align-content: center;
    }
    .concept-mainvisual-text01 {
      font-family: azo-sans-uber;
      font-weight: 100;
      font-size: 35px;
    }
    .concept-mainvisual-text02 {
      font-family: Zen Kaku Gothic New;
      font-weight: bold;
      font-size: 16px;
    }
    .concept-mainvisual-text02 span {
      font-family: azo-sans-uber;
      font-weight: 100;
      padding-left: 10px;
      padding-right: 10px;
    }

    /* =============== concept-detail */
    #concept-content {
      border-left: #000000 30px solid;
      border-right: #000000 30px solid;
      background-color: #f7b63f;
      width: 100%;
    }
    #concept-detail {
      padding-top: 25px;
      margin-left: 70px;
      margin-right: 70px;
    }
    .concept-detail-sqr {
      width: 100%;
      max-width: 1600px;
      margin-left: auto;
      margin-right: auto;
      margin-bottom: 30px;
      position: relative;
    }
    .concept-detail-num-sqr {
      position: absolute;
      top: 0;
      left: 0;
      z-index: 100;
      width: 45px;
      height: 45px;
      background-color: #2778dd;
      border: #ffffff 3px solid;
      border-radius: 50%;
      color: #ffffff;
      text-align: center;
      align-content: center;
    }
    .concept-detail-cir {
      width: 170px;
      height: 170px;
      background-color: #000000;
      border-radius: 50%;
      text-align: center;
      align-content: center;
      position: relative;
      z-index: 15;
    }
    .concept-detail-img {
      width: 75px;
    }
    .concept-detail-flame {
      position: absolute;
      top: 0;
      left: 95px;
      right: 0;
      z-index: 10;
    }
    .concept-detail-name {
      width: 50%;
      background-color: #000000;
      color: #ffffff;
      font-size: 18px;
      font-family: azo-sans-uber;
      font-weight: 100;
      border-radius: 0 20px 0 0;
      padding-top: 15px;
      padding-bottom: 15px;
      padding-left: 100px;
    }
    .concept-detail-text {
      width: 100%;
      background-color: rgba(0,0,0,0.7);
      color: #ffffff;
      font-size: 14px;
      font-weight: normal;
      line-height: 22px;
      border-radius: 0 20px 20px 0;
      padding-top: 20px;
      padding-bottom: 20px;
      padding-left: 100px;
      padding-right: 30px;
    }
    .concept-msg {
      max-width: 1600px;
      width: 100%;
      background-color: rgba(0,0,0,0.3);
      color: #ffffff;
      font-size: 16px;
      font-weight: normal;
      line-height: 22px;
      text-align: center;
      border-radius: 20px;
      margin-left: auto;
      margin-right: auto;
      margin-top: 50px;
      margin-bottom: 50px;
      padding-top: 20px;
      padding-left: 20px;
      padding-bottom: 20px;
      padding-right: 20px;
    }
    .concept-msg-text span {
      font-family: azo-sans-uber;
      font-weight: 100;
      padding-right: 5px;  
    }

  /* /////////////// works.html */
    /* =============== works-content */
    #works-content {
      border-left: #000000 30px solid;
      border-right: #000000 30px solid;
      background: repeating-linear-gradient(135deg, #dcdcdc, #dcdcdc 100px, #fff 50px, #fff 200px);
      width: 100%;
      padding-top: 50px;
    }
    .works-detail {
      max-width: 1600px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 70px;
      padding-right: 70px;
    }
    .works-detail-field {
      display: flex;
    }
    .works-detail-left, .works-detail-right {
      width: 50%;
      margin-bottom: 50px;
    }
    .works-detail-left {
      margin-right: 3%;
    }
    .works-detail-right {
      margin-left: 3%;
    }
    .works-detail-title, .works-detail-info {
      display: flex;
    }
    .works-detail-title {
      width: 100%;
      position: relative;
      font-size: 18px;
      margin-bottom: 10px;
    }
    .works-detail-title-num {
      background-color: #f7b63f;
      border: #000000 3px solid;
      border-radius: 20px;
      color: #ffffff;
      padding-left: 30px;
      padding-right: 30px;
      padding-top: 7px;
      padding-bottom: 7px;
      z-index: 15;
    }
    .works-detail-title-text {
      width: 100%;
      background-color: #000000;
      border: #000000 3px solid;
      border-radius: 20px;
      color: #ffffff;
      font-family: azo-sans-uber;
      font-weight: 100;
      align-content: center;
      padding-left: 95px;
      padding-top: 7px;
      padding-bottom: 7px;
      position: absolute;
      top: 0;
      z-index: 10;
    }
    .works-detail-site {
      width: 100%;
      border-radius: 20px;
      margin-bottom: 10px;
      filter: grayscale(100%);
    }
    .works-detail-info {
      color: #ffffff;
      font-size: 14px;
      position: relative;
    }
    .works-detail-info-top {
      width: 30%;
      text-align: center;
      background-color: #000000;
      border-radius: 20px;
      padding-top: 8px;
      padding-bottom: 8px;
      margin-bottom: 3px;
      position: relative;
      z-index: 15;
    }
    .works-detail-info-text {
      position: absolute;
      top: 0;
      width: 100%;
      background-color: rgba(0,0,0,0.7);
      border-radius: 20px;
      padding-top: 8px;
      padding-left: 32%;
      padding-bottom: 8px;
      margin-bottom: 3px;
      z-index: 10;
    }
    .works-detail-info-last {
      color: #ffffff;
      font-size: 14px;
    }
    .works-detail-info-last-top {
      background-color: #000000;
      border-radius: 20px 20px 0 0;
      text-align: center;
      padding-top: 8px;
      padding-bottom: 8px;
    }
    .works-detail-info-last-text {
      background-color: rgba(0,0,0,0.7);
      border-radius: 0 0 20px 20px;
      padding-top: 8px;
      padding-bottom: 10px;
      padding-left: 15px;
      padding-right: 15px;
      height: 100px;
    }

  /* /////////////// profile.html */
    /* =============== profile-content */
    #profile-content {
      border-left: #000000 30px solid;
      border-right: #000000 30px solid;
      background-color: #ffffff;
      background-image: radial-gradient(#dcdcdc 36%, transparent 37%), radial-gradient(#dcdcdc 36%, transparent 37%);
      background-position: 0 0, 100px 100px;
      background-size: 200px 200px;
      width: 100%;
      padding-top: 70px;
    }
    .profile-mainvisual-img {
      object-fit: cover;  
      width: 100%;
      filter: grayscale(60%);
      border-left: #000000 30px solid;
      border-right: #000000 30px solid;
    }
    .profile-mainvisual {
      width: 100%;
      padding-top: 75px;
    }
    .profile-mainvisual > .subpage-title {
      max-width: 1920px;
      padding-top: 0;
      margin-top: -20px;
      margin-bottom: -30px;
      margin-left: auto;
      margin-right: auto;
    }
    .profile-mainvisual > .subpage-title > .subpage-title-logo {
      top: 20px;
      right: calc(60% - 15px);
      width: 35px;
      height: 35px;
      border-radius: 50%;
      background-color: #000000;
      padding-top: 8px;
      padding-bottom: 20px;
      text-align: center;
    }
    .profile-list {
      max-width: 1600px;
      margin-top: 20px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 70px;
      padding-right: 70px;
    }
    .profile-list-top {
      display: flex;
    }
    .profile-list-left {
      width: 60%;
      color: #ffffff;
    }
    .profile-list-title {
      background-color: #f7b63f;
      border-radius: 20px;
      border: #000000 3px solid;
      width: 200px;
      padding-top: 5px;
      padding-bottom: 5px;
      padding-left: 15px;
      padding-right: 15px;
      line-height: 25px;
      font-size: 14px;
      position: relative;
      z-index: 15;
    }
    .profile-list-text {
      background-color: #000000;
      border-radius: 30px;
      font-family: azo-sans-uber;
      font-size: 18px;
      font-weight: 100;
      padding-top: 20px;
      padding-bottom: 15px;
      padding-left: 25px;
      padding-right: 25px;
      margin-left: 3%;
      margin-top: -10px;
      margin-bottom: 45px;
      position: relative;
      z-index: 10;
    }
    .profile-list-ig {
      width: auto;
      margin-left: auto;
      margin-right: 0;
    }
    .profile-list-bottom {
      color: #ffffff;
      padding-bottom: 40px;
    }
    .profile-list-bottom > .profile-list-text {
      line-height: 28px;
      font-size: 16px;
      font-family: Zen Kaku Gothic New;
      font-weight: normal;
      margin-left: 2%;
    }
  }
  


@media screen and (max-width: 800px) {
  /* =============== common */
  body {
    font-family: "Noto Sans JP", "Zen Kaku Gothic New", sans-serif;
    font-weight: bold;
    overflow-x: hidden;
  }
  #concept {
    padding-top: 50px;
    margin-left: auto;
    margin-right: auto;
  }
  #skill, #works, #profile {
    max-width: 1920px;
    padding-top: 80px;
    margin-left: auto;
    margin-right: auto;
  }
  .subtitle {
    color: #ffffff;
    font-family: azo-sans-uber;
    font-weight: 100;
    font-size: 16px;
  }
  .subtitle-sqr {
    display: flex;
    width: 80%;
    background-color: #2778dd;
    border-radius: 0 20px 20px 0;
    padding-left: 20px;
    padding-top: 10px;
    padding-bottom: 10px;
  }
  .viewmore {
    background-color: #e92729;
    width: 220px;
    height: 25px;
    margin-left: 0;
    margin-right: 0;
    margin-bottom: 20px;
    border-radius: 0 0 20px 0;
    padding-left: 20px;
    padding-right: 20px;
    font-size: 14px;
    align-content: center;
  }
  .viewmore-text span {
    font-family: "Noto Sans JP";
    font-weight: bold;
  }

  /* =============== header */
  #header {
    display: flex;
    background-color: #000000;
    width: 100%;
    align-items: center;
    position: fixed;
    z-index: 999;
    top: 0;
    left: 0;
    box-sizing: border-box;
  }
  .rf-logo {
    width: 30px;
    margin-top: 10px;
    margin-bottom: 10px;
    margin-left: 15px;
    margin-right: 15px;
  }
  .rf-textlogo {
    width: 180px;
  }
  .header-menu {
    display: none;
  }
  .menu-pic {
    width: 20px;
    margin-left: auto;
    margin-right: 15px;
  }
  #nav-sp {
    background-color: #000000;
    position: absolute;
    left: 0;
    top: 0;
    height: 50vh;
    width: 100%;
    display: none;
    z-index: 100;
  }
  #close {
    position: absolute;
    top: 15px;
    right: 15px;
  }
  .logo-sp-item {
    display: flex;
  }
  #logo-sp {
    margin-top: 20px;
    margin-bottom: 40px;
    margin-left: 20px;
    margin-right: 20px;
    width: 70px;
  }
  #nav-sp>a {
    display: block;
    font-family: azo-sans-uber;
  }
  #nav-sp>a:link {
    color: #ffffff;
  }
  #nav-sp>a:visited {
    color: #ffffff;
  }
  #nav-sp>a:hover {
    color: #ffffff;
    text-decoration: underline;
  }
  #nav-sp>a:active {
    color: #ffffff;
  }
  #nav-sp>.menu {
    display: block;
    margin: 0 20px 0 20px;
    font-family: azo-sans-uber;
    font-weight: 100;
    height: 44px;
    font-size: 20px;
    background-image: url("img/arrow.png");
    background-repeat: no-repeat;
    background-position: right top;
  }
  #sns {
    position: absolute;
    bottom: 20px;
    left: 20px;
  }
  #sns>a {
    margin-right: 10px;
  } 
  #sns > a > img {
    width: 40px;
  }

  /* =============== mainvisual */
  #mainvisual {
    align-items: center;
  }
  .mainvisual-dot {
    margin: auto;
    width: 100%;
    height: 350px;
    background-color: #ffffff;
    background-image: radial-gradient(#000000 36%, transparent 37%), radial-gradient(#000000 36%, transparent 37%);
    background-position: 0 0, 50px 50px;
    background-size: 100px 100px;
    border-left: #000000 10px solid;
    border-right: #000000 10px solid;
    border-bottom: #000000 10px solid;
    position: relative;
  }
  .mainvisual-sqr {
    position: absolute;
    top: 50%;
    transform: translateY(-30%);
    width: 100%;
    height: 45%;
    background-color: #000000;
    text-align: center;
    align-content: center;
  }
  .mainvisual-text {
    width: 60%;
    margin-left: auto;
    margin-right: auto;
  }

  /* =============== content */
  .content {
    border-left: #000000 10px solid;
    border-right: #000000 10px solid;
    background-color: #f7b63f;
    width: 100%;
  }

  /* =============== concept */
  .subtitle-rfconcept {
    font-family: "Noto Sans JP", sans-serif;
    font-weight: bold;
    margin-left: 10px;
    line-height: 16px;
  }
  .concept-dice {
    text-align: center;
    margin-left: 15px;
    margin-right: 15px;
  }
  .concept-dice-img {
    margin-top: 30px;
    margin-bottom: 20px;
    margin-left: auto;
    margin-right: auto;
    width: 100%;
    max-width: 1200px;
    object-fit: cover;
  }
  .concept-text {
    margin-left: 15px;
    margin-right: 15px;
  }
  .concept-text01 {
    background-color: #ffffff;
    border-radius: 20px;
    text-align: center;
    font-family: azo-sans-uber;
    color: #2778dd;
    padding-top: 20px;
    padding-bottom: 20px;
    margin-bottom: 10px;
  }
  .concept-text01-01 {
    font-family: azo-sans-uber;
    font-size: 22px;
    font-weight: 100;
  }
  .concept-text01-02 {
    display: none;
  }
  .concept-text02 {
    background-color: rgba(0,0,0,0.3);
    border-radius: 20px;
    color: #ffffff;
    line-height: 30px;
    padding-top: 20px;
    padding-bottom: 30px;
    padding-left: 30px;
    padding-right: 30px;
    position: relative;
  }
  .concept-text02-detail {
    font-family: Zen Kaku Gothic New;
    font-weight: normal;
    font-size: 12px;
  }
  .concept-text02-detail span {
    font-family: azo-sans-uber;
    font-size: 14px;
    padding-left: 5px;
    padding-right: 5px;
  }

  /* =============== skill */
  .skill-list {
    width: 100%;
    margin-top: 30px;
    margin-left: 10px;
    color: #ffffff;
  }
  .skill-list-item {
    text-align: center;
    justify-content: space-between;
    margin-right: 30px;
    display: flex;
  }
  .skill-sqr {
    align-items: center;
    width: 100%;
    position: relative;
    background-color: #ffffff;
    border-radius: 20px;
    padding-bottom: 30px;
    margin-bottom: 10px;
    margin-left: 2%;
  }
  .skill-logo {
    margin-left: auto;
    margin-right: auto;
  }
  .skill-logo-img {
    max-width: 80px;
    padding-left: 10px;
    padding-right: 10px;
    padding-top: 20px;
    padding-bottom: 30px;
  }
  .skill-name {
    background-color: #000000;
    border-radius: 0 0 20px 20px;
    font-size: 12px;
    padding-top: 10px;
    position: absolute;
    bottom: 0;
    width: 100%;
    height: 35px;
  }

  /* =============== works */
  .works-list {
    width: 100%;
    margin-top: 30px;
    margin-left: 15px;
    color: #ffffff;
  }
  .works-list > ul {
    margin-right: 30px;
    font-size: 12px;
  }
  .works-sqr {
    width: 100%;
    margin-bottom: 10px;
  }
  .works-list-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    object-position: left top;
    border-radius: 20px 20px 0 0;
    filter: grayscale(100%);
  }
  .works-name {
    display: flex;
  }
  .works-name-title {
    width: 70%;
    background-color: #000000;
    border-radius: 0 0 0 20px;
    padding-top: 10px;
    padding-bottom: 10px;
    text-align: center;
  }
  .works-name-gosite {
    width: 30%;
    background-color: #e92729;
    border-radius: 0 0 20px 0;
    text-align: center;
    align-content: center;
  }

  /* =============== profile */
  #profile {
    padding-bottom: 70px;
    margin-right: 30px;
  }
  .profile-sqr {
    width: 100%;
    margin-top: 30px;
    margin-left: 15px;
  }
  .profile-pic {
    text-align: center;
  }
  .profile-pic-area {
    width: 100%;
    border-radius: 50%;
    filter: grayscale(100%);
    margin-bottom: 10px;
  }
  .profile-detail {
    width: 100%;
  }
  .profile-detail-flame01 {
    display: flex;
    background-color: #000000;
    border-radius: 20px 20px 0 0;
    padding-top: 15px;
    padding-bottom: 15px;
    padding-left: 20px;
    font-size: 22px;
    font-family: azo-sans-uber;
    font-weight: 100;
    color: #ffffff;
    align-items: center;
    justify-content: space-between;
  }
  .contact-flame {
    display: flex;
    margin-right: 20px;
  }
  .contact-logo {
    width: 30px;
    margin-left: 13px;
  }
  .profile-detail-flame02 {
    background-color: rgba(0,0,0,0.3);
    border-radius: 0 0 20px 20px;
    padding-top: 20px;
    padding-bottom: 20px;
    padding-left: 20px;
    padding-right: 20px;
    font-family: Zen Kaku Gothic New;
    font-weight: normal;
    font-size: 12px;
    color: #ffffff;
    line-height: 30px;
  }
  .contact {
    margin-top: 10px;
    background-color: rgba(0,0,0,0.3);
    border-radius: 20px;
    padding-left: 10px;
    padding-top: 10px;
    padding-bottom: 10px;
    padding-right: 10px;
    font-size: 14px;
  }
  .contact-title {
    background-color: #000000;
    color: #ffffff;
    font-size: 14px;
    border-color: #000000;
    border-width: 3px;
    border-style: solid;
    padding-top: 10px;
    padding-bottom: 10px;
    padding-left: 15px;
    border-radius: 20px;
    margin-bottom: 10px;
  }
  .contact > form > div {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    padding-bottom: 30px;
  }
  .contact-heading {
    background-color: rgba(0,0,0,0.7);
    color: #ffffff;
    font-size: 12px;
    width: 100%;
    padding-top: 10px;
    padding-left: 20px;
    padding-bottom: 10px;
    border-radius: 20px 20px 0 0;
  }
  .contact-textbox {
    border-top: 0;
    border-left: 0;
    border-right: 0;
    border-radius: 0 0 20px 20px;
    background-color: rgb(255,255,255,0.7);
    width: 100%;
    height: 56px;
    padding-left: 20px;
    padding-right: 20px;
    margin-bottom: 5px;
  }
  .contact-textarea {
    border-top: 0;
    border-left: 0;
    border-right: 0;
    border-radius: 0 0 20px 20px;
    background-color: rgb(255,255,255,0.7);
    width: 100%;
    height: 130px;
    padding-left: 20px;
    padding-top: 20px;
    padding-right: 20px;
    resize: none;
    line-height: 18px;
  }
  .send {
    text-align: right;
  }
  .sendbtn {
    background-color: #e92729;
    color: #ffffff;
    font-size: 14px;
    padding-top: 8px;
    padding-bottom: 8px;
    border-radius: 20px;
    border: #f7b63f 5px solid;
    margin-top: 10px;
    width: 150px;
    text-align: center; 
  }

  /* =============== footer */
  #footer {
    background-color: #000000;
    color: #ffffff;
    padding-top: 30px;
    width: 100%;
  }
  .footer-sqr {
    display: flex;
    justify-content: space-between;
    font-weight: bold;
  }
  .footer-logo {
    margin-bottom: 30px;
    margin-left: auto;
    margin-right: auto;
  }
  .footer-logo-img {
    display: none;
  }
  .footer-nav {
    display: none;
  }
  .copyright {
    font-size: 12px;
  }

  /* subpage_common */
  .subpage-title {
    margin-top: -20px;
    margin-bottom: 50px;
    margin-left: auto;
    margin-right: auto;
    position: relative;
  }
  .subpage-title-sqr {
    width: 100%;
    background-color: #2778dd;
    color: #ffffff;
    font-size: 16px;
    padding-left: 20px;
    padding-top: 10px;
    padding-bottom: 10px;
  }
  .subpage-title-text span {
    font-family: azo-sans-uber;
    font-weight: 100;
    padding-right: 5px;
  }
  .subpage-title-logo {
    position: absolute;
    top: 0px;
    right: 15px;
    width: 35px;
    height: 35px;
    border-radius: 0 0 50% 50%;
    background-color: #000000;
    padding-top: 8px;
    padding-bottom: 20px;
    text-align: center;
  }
  .subpage-title-logo-img {
    width: 16px;
  }

  /* concept.html */
  #concept-mainvisual {
    width: 100%;
    background-color: #ffffff;
    text-align: center;
    margin-top: 50px;
    position: relative;
  }
  .background-img {
    width: 100%;
    padding-left: 30px;
    padding-right: 30px;
    padding-top: 30px;
    padding-bottom: 30px;
  }
  .concept-mainvisual-text {
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.7);
    border-left: #000000 10px solid;
    border-right: #000000 10px solid;
    position: absolute;
    top: 0;
    left: 0;
    color: #ffffff;
    align-content: center;
  }
  .concept-mainvisual-text01 {
    font-family: azo-sans-uber;
    font-weight: 100;
    font-size: 30px;
  }
  .concept-mainvisual-text02 {
    font-family: Zen Kaku Gothic New;
    font-weight: bold;
    font-size: 14px;
  }
  .concept-mainvisual-text02 span {
    font-family: azo-sans-uber;
    font-weight: 100;
    padding-left: 10px;
    padding-right: 10px;
  }
  #concept-content {
    border-left: #000000 10px solid;
    border-right: #000000 10px solid;
    background-color: #f7b63f;
    width: 100%;
  }
  #concept-detail {
    padding-top: 0px;
    margin-left: 20px;
    margin-right: 20px;
  }
  .concept-detail-sqr {
    width: 100%;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 30px;
    position: relative;
  }
  .concept-detail-num-sqr {
    position: absolute;
    top: 75px;
    right: 0;
    z-index: 100;
    width: 45px;
    height: 45px;
    background-color: #2778dd;
    border-radius: 0 20px 0 0;
    color: #ffffff;
    font-size: 14px;
    text-align: center;
    align-content: center;
  }
  .concept-detail-cir {
    width: 120px;
    height: 120px;
    background-color: #000000;
    border-radius: 50% 50% 0 0;
    text-align: center;
    align-content: center;
    position: relative;
    z-index: 15;
  }
  .concept-detail-img {
    width: 50px;
  }
  .concept-detail-flame {
    margin-top: -45px;
    z-index: 10;
  }
  .concept-detail-name {
    width: 100%;
    background-color: #000000;
    color: #ffffff;
    font-size: 14px;
    font-family: azo-sans-uber;
    font-weight: 100;
    border-radius: 0 20px 0 0;
    padding-top: 15px;
    padding-bottom: 15px;
    padding-left: 130px;
  }
  .concept-detail-text {
    width: 100%;
    background-color: rgba(0,0,0,0.7);
    color: #ffffff;
    font-size: 12px;
    font-weight: normal;
    line-height: 22px;
    border-radius: 0 0 20px 20px;
    padding-top: 20px;
    padding-bottom: 20px;
    padding-left: 30px;
    padding-right: 30px;
  }
  .concept-msg {
    max-width: 1600px;
    width: 100%;
    background-color: rgba(0,0,0,0.3);
    color: #ffffff;
    font-size: 14px;
    font-weight: normal;
    line-height: 22px;
    text-align: center;
    border-radius: 20px;
    margin-left: auto;
    margin-right: auto;
    margin-top: 60px;
    margin-bottom: 50px;
    padding-top: 20px;
    padding-left: 20px;
    padding-bottom: 20px;
    padding-right: 20px;
  }
  .concept-msg-text span {
    font-family: azo-sans-uber;
    font-weight: 100;
    padding-right: 5px;  
  }
  .contact {
    margin-bottom: 50px;
    font-size: 12px;
  }

  /* works.html */
  #works-content {
    border-left: #000000 10px solid;
    border-right: #000000 10px solid;
    background: repeating-linear-gradient(135deg, #dcdcdc, #dcdcdc 100px, #fff 50px, #fff 200px);
    width: 100%;
    padding-top: 75px;
  }
  .works-detail {
    margin-left: auto;
    margin-right: auto;
    padding-left: 15px;
    padding-right: 15px;
  }
  .works-detail-left, .works-detail-right {
    width: 100%;
    margin-bottom: 50px;
  }
  .works-detail-title, .works-detail-info {
    display: flex;
  }
  .works-detail-title {
    width: 100%;
    position: relative;
    font-size: 14px;
    margin-bottom: 10px;
  }
  .works-detail-title-num {
    background-color: #f7b63f;
    border: #000000 3px solid;
    border-radius: 20px;
    color: #ffffff;
    padding-left: 30px;
    padding-right: 30px;
    padding-top: 7px;
    padding-bottom: 7px;
    z-index: 15;
  }
  .works-detail-title-text {
    width: 100%;
    background-color: #000000;
    border: #000000 3px solid;
    border-radius: 20px;
    color: #ffffff;
    font-family: azo-sans-uber;
    font-weight: 100;
    align-content: center;
    padding-left: 95px;
    padding-top: 7px;
    padding-bottom: 7px;
    position: absolute;
    top: 0;
    z-index: 10;
  }
  .works-detail-site {
    width: 100%;
    border-radius: 20px;
    margin-bottom: 10px;
    filter: grayscale(100%);
  }
  .works-detail-info {
    color: #ffffff;
    font-size: 12px;
    position: relative;
  }
  .works-detail-info-top {
    width: 30%;
    text-align: center;
    background-color: #000000;
    border-radius: 20px;
    padding-top: 8px;
    padding-bottom: 8px;
    margin-bottom: 3px;
    position: relative;
    z-index: 15;
  }
  .works-detail-info-text {
    position: absolute;
    top: 0;
    width: 100%;
    background-color: rgba(0,0,0,0.7);
    border-radius: 20px;
    padding-top: 8px;
    padding-left: 32%;
    padding-bottom: 8px;
    margin-bottom: 3px;
    z-index: 10;
  }
  .works-detail-info-last {
    display: none;
  }
  .works-detail-info-last-top {
    background-color: #000000;
    border-radius: 20px 20px 0 0;
    text-align: center;
    padding-top: 8px;
    padding-bottom: 8px;
  }
  .works-detail-info-last-text {
    background-color: rgba(0,0,0,0.7);
    border-radius: 0 0 20px 20px;
    padding-top: 8px;
    padding-bottom: 10px;
    padding-left: 15px;
    padding-right: 15px;
    height: 100px;
  }

  /* profile.html */
  #profile-content {
    border-left: #000000 10px solid;
    border-right: #000000 10px solid;
    background-color: #ffffff;
    background-image: radial-gradient(#dcdcdc 36%, transparent 37%), radial-gradient(#dcdcdc 36%, transparent 37%);
    background-position: 0 0, 100px 100px;
    background-size: 200px 200px;
    width: 100%;
    padding-top: 40px;
  }
  .profile-mainvisual-img {
    object-fit: cover;  
    width: 100%;
    filter: grayscale(60%);
    border-left: #000000 10px solid;
    border-right: #000000 10px solid;
  }
  .profile-mainvisual {
    width: 100%;
    padding-top: 50px;
  }
  .profile-mainvisual > .subpage-title {
    border-left: #000000 10px solid;
    border-right: #000000 10px solid;
    margin-bottom: 0;
  }
  .profile-list {
    margin-left: auto;
    margin-right: auto;
    padding-left: 15px;
    padding-right: 15px;
  }
  .profile-list-left {
    color: #ffffff;
  }
  .profile-list-title {
    background-color: #f7b63f;
    border-radius: 20px;
    border: #000000 3px solid;
    width: 170px;
    padding-left: 15px;
    padding-right: 15px;
    line-height: 25px;
    font-size: 12px;
    position: relative;
    z-index: 15;
  }
  .profile-list-text {
    background-color: #000000;
    border-radius: 30px;
    font-family: azo-sans-uber;
    font-size: 14px;
    font-weight: 100;
    padding-top: 17px;
    padding-bottom: 12px;
    padding-left: 25px;
    padding-right: 25px;
    margin-left: 3%;
    margin-top: -10px;
    margin-bottom: 30px;
    position: relative;
    z-index: 10;
  }
  .profile-list-ig {
    width: 100%;
    align-content: center;
    margin-left: auto;
    margin-right: auto;
    margin-top: 40px;
    margin-bottom: 30px;
  }
  .profile-list-bottom {
    display: none;
  }
  .profile-list-bottom > .profile-list-text {
    line-height: 28px;
    font-size: 16px;
    font-family: Zen Kaku Gothic New;
    font-weight: normal;
    margin-left: 2%;
  }
}