body {
  margin: auto;
  width: 100%;
}

.mainvisual {
  background-size: cover;
  background-attachment: fixed;
  background-repeat: no-repeat;
  background-position: center top;
  height: auto;
  width: 100%;
  min-width: 950px;
  min-height: 551px;
  padding: 0px;
  margin: 0px;
  position: relative;
}
.mainvisual ul {
  position: absolute;
  top: 0px;
  left: 0px;
  width: 100%;
  height: 100%;
  background: #000000;
  z-index: -1;
}
.mainvisual ul li {
  position: absolute;
  top: 0px;
  left: 0px;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: 50% 50%;
  background-repeat: none;
  opacity: 0;
  -webkit-animation: anime 20s linear 0s infinite;
  animation: anime 20s linear 0s infinite;
}
.mainvisual ul li:nth-child(1) {
  background-image: url(/tricot_next/img/mainvisual02.jpg);
  background-size: cover;
}
.mainvisual ul li:nth-child(2) {
  background-image: url(/tricot_next/img/mainvisual03.jpg);
  -webkit-animation-delay: 10s;
  animation-delay: 10s;
  background-size: cover;
}
.mainvisual ul li:nth-child(3) {
  background-image: url(/tricot_next/img/mainvisual01.jpg);
  -webkit-animation-delay: 20s;
  animation-delay: 20s;
  background-size: cover;
}

@-webkit-keyframes anime {
  0% {
    -webkit-animation-timing-function: ease-in;
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  40% {
    -webkit-animation-timing-function: ease-out;
    opacity: 1;
  }
  50% {
    opacity: 1;
  }
  100% {
    opacity: 0;
  }
}
@keyframes anime {
  0% {
    -webkit-animation-timing-function: ease-in;
            animation-timing-function: ease-in;
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  40% {
    -webkit-animation-timing-function: ease-out;
            animation-timing-function: ease-out;
    opacity: 1;
  }
  50% {
    opacity: 1;
  }
  100% {
    opacity: 0;
  }
}
.mainc-head h2 {
  width: 545px;
  margin: auto;
  padding: 92px 0 26px 3px;
}

.mainv_text {
  position: absolute;
  top: 50%;
  left: 50%;
  margin-left: -450px;
  margin-top: -64px;
}

.mainc-head p {
  width: 630px;
  margin: auto;
  text-align: center;
  line-height: 2.35;
  padding-bottom: 95px;
}

#wrapper {
  width: 720px;
  margin: auto;
}

.tricotsection {
  width: 720px;
  padding-bottom: 101px;
  overflow: hidden;
}

.strpoint {
  width: 102px;
  float: left;
  margin-top: 39px;
}

.strpoint02 {
  width: 102px;
  float: left;
  margin-top: 36px;
}

.strtitle01 {
  width: 154px;
  float: left;
  margin-top: 39px;
  margin-left: 59px;
}

.strtitle02 {
  width: 103px;
  float: left;
  margin-top: 36px;
  margin-left: 59px;
}

.strtitle03 {
  width: 98px;
  float: left;
  margin-top: 37px;
  margin-left: 59px;
}

p.strtext {
  width: 340px;
  float: right;
  line-height: 2.2;
  margin-top: 33px;
}
p.strtext02 {
  width: 340px;
  float: right;
  line-height: 2.2;
  margin-top: 30px;
}

.nextsec {
  text-align: center;
  margin-top: 100px;
  margin-bottom: 100px;
}

.sampletext {
  margin-top: 20px;
  margin-bottom: 40px;
}

.backbtn {
  margin-top: 100px;
  padding-bottom: 47px;
}

footer {
  width: 940px;
  margin: auto;
  padding-bottom: 50px;
}

@media screen and (max-width: 575px) {
  .mainvisual {
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
    height: 100vh;
    margin: 0;
    width: 100%;
    min-width: auto;
    min-height: auto;
    padding: 0;
    position: relative;
  }
  .mainvisual .mainv_text {
    margin: 0;
    -webkit-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
  }
/*
  .mainvisual ul li:nth-child(1) {
    background-image: url(sp/img/tricot/tricot-main.jpg);
    background-size: cover;
  }
  .mainvisual ul li:nth-child(2) {
    background-image: url(sp/img/tricot/tricot-main.jpg);
    background-size: cover;
  }
  .mainvisual ul li:nth-child(3) {
    background-image: url(sp/img/tricot/tricot-main.jpg);
    background-size: cover;
  }
*/
  #wrapper {
    width: 100%;
  }
  #wrapper .mainc-head {
    margin: 64px 0;
  }
  #wrapper .mainc-head h2 {
    width: 100%;
    font-family: "BIZ UDPGothic", sans-serif;
    font-size: 18px;
    letter-spacing: 0.22em;
    text-align: center;
    padding-top: 72px;
    background: url(sp/img/tricot/tricot-logo-sp.svg) no-repeat center top;
  }
  #wrapper .mainc-head p {
    width: calc(100% - 40px);
    text-align: justify;
    font-size: 0.875rem;
    padding: 0 20px;
    line-height: 2;
  }
  #wrapper .tricotsection {
    width: 100%;
  }
  #wrapper .tricotsection picture img {
    width: 100%;
    height: auto;
  }
  #wrapper .tricotsection h3 {
    padding: 0 20px;
    font-family: "BIZ UDPGothic", sans-serif;
    font-size: 18px;
    letter-spacing: 0.28em;
    font-weight: bold;
  }
  #wrapper .tricotsection h3 span {
    font-family: "Montserrat", sans-serif;
    font-size: 11px;
    letter-spacing: 0.5px;
    display: block;
    margin-top: 8px;
  }
  #wrapper .tricotsection .next-sp-point {
    margin: 28px 0 16px;
    padding: 0 20px;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    gap: 0 16px;
  }
  #wrapper .tricotsection .next-sp-point span {
    font-family: "Montserrat", sans-serif;
    font-size: 10px;
  }
  #wrapper .tricotsection .next-sp-point img {
    width: 20px;
    position: relative;
    bottom: 5px;
    margin-right: 6px;
  }
  #wrapper .tricotsection .next-sp-point p {
    font-family: "Montserrat", sans-serif;
    font-size: 24px;
  }
  #wrapper .tricotsection p.strtext, #wrapper .tricotsection p.strtext02 {
    width: calc(100% - 40px);
    float: none;
    font-size: 0.875rem;
    padding: 0 20px;
    line-height: 2;
    letter-spacing: 0.5px;
    text-align: justify;
  }
  #wrapper .tri-sp-symbol {
    text-align: center;
    margin: 0 20px 100px;
    padding: 40px 24px 32px;
    background: rgba(0, 0, 0, .05);
    line-height: 2.2;
  }
  #wrapper .tri-sp-symbol img {
    width: 80px;
    margin-bottom: 32px;
  }
  #wrapper .tri-sp-symbol .tri-concept-title {
    font-family: "Montserrat", sans-serif;
    font-size: 16px;
    letter-spacing: 1px;
    margin-bottom: 16px;
  }
  #wrapper .tri-sp-symbol .tri-concept-descript {
    font-size: 0.8125rem;
    letter-spacing: 0.5px;
    text-align: left;
  }
  footer {
    width: calc(100% - 40px);
  }
}