html { scroll-behavior: smooth;}

#head-image { background-color: #000; width: 100%; background: url("../../img/engine_oil/background.jpg")no-repeat center; background-size: cover; }
#head-image div.box { width: 100%; color: #000; text-align: center; overflow: hidden; }
.box { display: block; width: 90%; max-width: 1280px; margin: 0 auto; padding: 80px 0 60px; font-size: 90%; }

div.box h1 { font-size: 300%; font-weight: 900; letter-spacing: 3px; padding: 20px; color: #fff; text-shadow: 0px 0px 9px rgba(0, 0, 0, 0.6); display: inline-block; width: 58%; font-family: "Noto Serif JP"; }
div.box h3 { font-size: 120%; font-weight: 400; letter-spacing: 0px; padding: 10px; color: #fff; text-shadow: 0px 0px 9px rgba(0, 0, 0, 0.6); font-family: "Noto Serif JP"; line-height: 180%; border: none; }
main2 #head-image div.box img { display: block; width: 100%; max-width: 675px; margin: 0 auto 50px; padding: 0 20px; }
main2 #head-image div.box img.oil { display: block; width: 100%; max-width: 927px; margin: 0 auto 0px; padding: 0 20px; }
main2 #head-image div.box p { text-align: center; color: #fff; font-size: 80%; }

section#content-read { background-image: linear-gradient(0deg, rgba(30, 71, 113, 1), rgba(0, 0, 0, 1)); color: #fff; overflow: hidden; padding: 0 0 0 0; }
section#content-read img { display: block; margin: 0 auto; max-width: 927px; }

section#content-01 { background-color: #1e4771; color: #fff; overflow: hidden; padding: 0 0 0 0; }
section#content-02 { background-color: #1e4771; color: #fff; overflow: hidden; padding: 90px 0 100px 0; }

section#content-01 p { font-size: 100%; color: #fff; text-align: left; }
section#content-01 p.small { font-size: 80%; }
section#content-01 p b { font-size: 140%; line-height: 200%; }
section#content-01 div.box div.title-graph img { max-width: 600px; display: block; margin: 30px auto 0; }

section#content-01 div.box img { display: block; margin: 0 auto; max-width: 900px; }

section#content-02 div.title { background: url("../../img/rock_bolt/title-background-1.jpg")no-repeat right center; background-size: cover; min-height: 195px; position: relative; }
section#content-02 div.box { display: block; width: 90%; max-width: 1280px; margin: 0 auto; padding: 40px 0 60px; font-size: 90%; }
div.box-title { display: block; width: 90%; max-width: 1280px; margin: 0 auto; color: #fff; padding: 27px 0 0; font-size: 100%; }
div.box-title span { font-family: 'Questrial', sans-serif; font-weight: 900; }
section#content-02 div.title hr { background-color: #fff; position: absolute; top: 37px; left: 0; width: 30%; }
div.box-title p { color: #fff; font-weight: 900; font-size: 130%; margin: 28px 0 0; }
div.box-title p b { font-size: 160%; }

/*section#content-02 div.box p { text-align: center; color: #fff; font-weight: 700; font-size: 150%; margin-bottom: 40px; }*/

section#content-02 ul { display: flex; margin: 0 0 60px 0; align-items: flex-start; }
section#content-02 ul.text  { display: flex; margin: 0 0 80px 0; align-items: center; }
section#content-02 ul li { width: 50%; margin-right: 40px; }
section#content-02 ul.text li { width: calc(50% - 40px); margin-right: 40px; }
section#content-02 ul.text li:last-child { margin-left: 0; }
section#content-02 ul li:last-child { width: 50%; margin-right: 0px; margin-left: 40px; }
section#content-02 ul li span { display: block; color: #9fa0a0; font-weight: 600; font-size: 120%; }
section#content-02 ul li b { font-weight: 700; font-size: 140%; }
section#content-02 ul li span.note { font-size: 85%; font-weight: 400; color: #fff; }
section#content-02 ul li div.left { float: left; width: 40%; }
section#content-02 ul li div.right { float: right; width: 55%; }

section#content-02 div.title-2 { background: #727171; background-size: cover; min-height: 40px; position: relative; overflow: hidden; }
section#content-02 div.title-2 div.box-title p { margin: 0; font-size: 120%; }
section#content-02 div.title-2 div.box-title p b { font-weight: 500; }
section#content-02 div.title-2 div.box-title { padding: 15px 0; }
section#content-02 div.title-2 div.box-title p b img { width: auto; height: 50px; display: inline-block; vertical-align: text-bottom; margin: 0 20px 0 0; }

div.content-03 { background-color: #b5b5b6; }
div.content-03 div.box-title { padding: 40px 0; }
section#content-02 div.content-03 div.box-title ul { align-items: center; }
section#content-02 div.content-03 div.box-title ul li:first-child { width: 70%; font-size: 135%; color: #231815; }
section#content-02 div.content-03 div.box-title ul li { width: 30%; line-height: 180%; }

div.content-04 { background-color: #231815; padding: 40px; }
div.content-04 img { max-width: 600px; margin: 0 auto; }

section#content-02 div.title.sec { background: url("../../img/rock_bolt/title-background-2.jpg")no-repeat right center; background-size: cover; min-height: 195px; position: relative; }
section#content-02 div.box.sec ul { margin: 0 0 30px 0; }
section#content-02 div.box.sec ul li:first-child { width: 40%; }
section#content-02 div.box.sec ul li { font-size: 120%; line-height: 180%; }
section#content-02 div.box.sec ul li.text2 { font-size: 100%; }
section#content-02 div.box.sec ul li.illust { width: 30%; }
section#content-02 div.title.thi { background: url("../../img/rock_bolt/title-background-3.jpg")no-repeat right center; background-size: cover; min-height: 195px; position: relative; }


summary.details-summary img { position: absolute; top: 12px; left: 0; width: 50px; }

div.background-gray { width: 100%; background-color: #b5b5b6; min-height: 1500px; position: absolute; top: 106px; }

div.details-center { float: none; width: 100%; }

div.store-wrapper { display: flex; }
div.store-text { width: calc(65% - 10px); line-height: 180%; }
div.store-image { width: calc(35% - 20px); margin-left: 30px; }

span.store-ca { text-align: center; display: block; margin: 40px 0 0; }
span.store-ca2 { font-size: 150%;
  text-align: center;
  margin: 40px auto 0;
  border: 1px solid #fff;
  display: inline-block;
  padding: 20px;
  width: 80%; left: 50%;
  transform: translateX(-50%);
  position: relative; }

div.store-text b { display: block; font-size: 180%; }
div.store-text u { display: block; font-size: 120%; margin: 20px 0 10px; }

div.store-image b { display: block; font-size: 100%; margin: 0 0 15px; font-weight: 400; background: #4e6e90; padding: 15px; }
div.store-image div.store-image-sub { font-size: 85%; }
div.store-image div.store-image-sub img { float: right; width: 30%; margin-left: 10px; }
div.store-image div.store-image-sub2 { font-size: 85%; }
div.store-image div.store-image-sub2 img { float: left; width: 60%; margin: 0 10px 0 0; display: block; }

div.details-left,div.photo-left { float: left; }
div.details-right,div.photo-right { float: right; }
div.details-left,div.details-right { width: 50%; }
div.photo-left,div.photo-right { width: 50%; padding: 20px; text-align: center; }
div.photo-left { color: #282828; }
div.photo-left span { font-size: 85%; display: block; letter-spacing: 0; }

section#content-02 div.title-2 div.box-title p.qa-title { text-align: center; color: #000; font-weight: 400; }

section#content-02 div.title-2 div.box-title p.qa-title img { margin-bottom: 100px; }

section#content-02 h2.heading-21 { margin-top: 60px; clear: both; }

@media print, screen and (max-width: 767.98px) {
#head-image div.box { width: 90%; }
div.head-line { font-family: 'Roboto', sans-serif; font-size: 410%; font-weight: 900; color: #363636; white-space: nowrap; letter-spacing: -10px; }
.box { width: 90%; }
div.seatcover-title { padding: 10px; font-size: 105%; margin: 20px 0 20px 0; }
div.seatcover-title-02 span { font-size: 50%; padding: 0; display: block; }
div.details-left,div.photo-left { float: none; }
div.details-right,div.photo-right { float: none; }
div.details-left,div.details-right { width: 100%; }
div.photo-left,div.photo-right { width: 100%; padding: 20px; text-align: center; font-size: 80%; }
}

section#content-02 div.ca { clear: both; padding: 100px 0 0 0; width: 100%; max-width: 1024px; margin: 0 auto; }
section#content-02 div.ca div.ca-wrapper { padding: 40px; width: 100%; background-color: #ececec; }
section#content-02 div.ca div.ca-wrapper div.ca-title { padding: 20px; font-size: 92%; width: 100%; text-align: center; font-family: "Noto Sans JP"; font-weight: 400; color: #8f9413; border: 1px solid #8f9413; }
section#content-02 div.ca div.ca-wrapper div.ca-title img { width: 54px; float: left; }

section#content-02 div.ca div.ca-wrapper ul { margin: 40px 0 0 0; }
section#content-02 div.ca div.ca-wrapper ul li { list-style: disc; color: #333; font-size: 95%; font-weight: 400; padding: 20px 0 20px 0; margin-left: 20px; }
section#content-02 div.ca div.ca-wrapper ul li:first-child { border-bottom: 1px solid #fff; }

section#content-02 div.ca div.ca-wrapper p { padding: 10px; color: #333; letter-spacing: 0; }

section#content-02 div.ca div.ca-wrapper a.cp_btn {
  margin: 30px auto 0;
  display: block;
  max-width: 600px;
  width: 100%;
  padding: 0.8em;
  text-align: center;
  text-decoration: none;
  color: #fff;
  border: 2px solid #999e0f;
  border-radius: 30px;
  transition: .4s;
  line-height: 200%;
  font-size: 100%;
  font-weight: 400;
  background-color: #999e0f;
}

section#content-02 div.ca div.ca-wrapper a.cp_btn:hover {
  background: #fff;
  color: #999e0f;
}
.fa, .fas {
  font-weight: 900;
}
.fa, .far, .fas {
  font-family: "Font Awesome 5 Free";
}

.fa-angle-right::before {
  content: "\f105";
}

.cp_btn_right {
  float: right;
  padding-top: 8px;
  color: #fff;
}



#footer { background-color: #fff; color: #000; overflow: hidden; padding: 0 0 100px 0; }
#footer h2 { text-align: center; }
#footer div.box { max-width: 1024px; clear: both; }





@media print, screen and (max-width: 767.98px) {
#head-image {  }
div.box h1 { font-size: 145%; padding: 30px 0 30px 0; letter-spacing: 0; line-height: 180%; width: 90%; }
#head-image p { font-size: 80%; line-height: 180%; }
#head-image p img { display: block; float: none; margin: 0 auto; margin-bottom: 10px; }
#footer { padding: 0; }
div.box h3 { font-size: 84%; }
section#content-02 div.ca div.ca-wrapper { padding: 20px; }
section#content-02 div.ca div.ca-wrapper div.ca-title img { float: none; display: block; margin: 0 auto 20px; }
section#content-02 div.ca div.ca-wrapper ul { margin: 0 0 0 0; }
section#content-02 { padding: 0 0 0 0; }

section#content-read div.box { padding-bottom: 0; padding-top: 40px; }

h2.heading-21 { font-size: 140%; }


div.store-wrapper { display: block; }
div.store-text { width: 100%; }
div.store-image { width: 100%; margin-left: 0; margin-top: 10px; }
div.store-image div.store-image-sub2 img {
  float: none;
  width: 100%;
  margin: 0 10px 0 0;
  display: block;
}

}






.heading-21 {
    position: relative;
    padding: 0 .7em .8em;
    border-bottom: 1px solid #9fb8d2;
    color: #ffffff;
	margin-top: 0; font-size: 180%;
}

.heading-21::before,
.heading-21::after {
    position: absolute;
    left: 30px;
    bottom: -15px;
    width: 30px;
    height: 15px;
    clip-path: polygon(0 0, 100% 0, 50% 100%);
    content: '';
}

.heading-21::before {
    background-color: #9fb8d2;
}

.heading-21::after {
    bottom: -13px;
    background-color: #1e4771;
}





.details {

}
.details-summary {
    position: relative;
    display: block;
    padding: 20px 20px 20px 8%;
    color: #fff;
    font-size: 24px;
    font-weight: 400;
    text-align: left;
}
.details-summary:hover {
    cursor: pointer;
    opacity: 0.8;
}
.details-summary .btn1 {
    position: absolute;
    top: 37%;
    left: 4%;
    width: 18px;
    height: 18px;
    transform-origin: center center;
    transition-duration: 0.2s;
}
.details-summary .btn1:before, .details-summary .btn1:after {
    content: "";
    background-color: #fff;
    border-radius: 10px;
    width: 18px;
    height: 4px;
    position: absolute;
    top: 7px;
    left: 0;
    transform-origin: center center;
}
.details-summary .btn1:before {
    width: 4px;
    height: 18px;
    top: 0;
    left: 7px;
}
.details-summary.is-active .btn1 {
    -webkit-transform: rotate(-180deg);
    transform: rotate(-180deg);
}
.details-summary.is-active .btn1:before {
    content: none;
}
.details-summary::-webkit-details-marker {
    display: none;
}
.details-content {
    padding: 20px; background-color: rgba(255,255,255,0.1); margin: 0 9%;
}
.details-content p {
    margin: 0 0 20px;
    color: #000;
    font-size: 18px;
    text-align: left;
}
.details-content p:last-of-type {
    margin: 0 0 0;
}

div.details-content p { line-height: 180%; font-size: 102%; color: #fff; }

details.section-black summary.details-summary { color: #282828; }
details.section-black div.details-content { background-color: rgba(0,0,0,0.02); margin: 0 9%; }
details.section-black div.details-content p { color: #282828; }
details.section-black div.details-content p img { float: none; display: block; margin: 0 auto; width: 60%; }
details.section-black summary.details-summary .btn1:before, details.section-black summary.details-summary .btn1:after { background-color: #282828; }


.other-box { margin: 30px 0 0; font-size: 75%; line-height: 180%; clear: both; }

div.details-content p img { display: block; margin-top: 10px; }

@media print, screen and (max-width: 767.98px) {

.details-summary { font-size: 120%; padding: 20px 5px 20px 10%; }
details.section-black div.details-content p img { margin: 10px auto 0; width: 100%; }
details.section-black { width: 100%; float: none; }
.other-box { font-size: 75%; }
div.details-content p { line-height: 180%; color: #fff; }
div.details-content { margin: 0; }
div.store-text b { font-size: 160%; }

}


div.footer-banner { margin-top: 60px; text-align: center; clear: both; }
div.footer-banner a:first-child { display: block; width: 48%; float: left; border: 1px solid #ECECEC; border-radius: 20px; }
div.footer-banner a { display: block; width: 48%; float: right; }
div.footer-banner a img { border-radius: 20px; transition: 0.3s; }
div.footer-banner a img:hover { opacity: 0.7; transition: 0.3s; }

section#content-read div.image-title img { max-width: 300px; display: inline-block; }
div.image-title { text-align: center; font-weight: 700; font-size: 300%; margin-bottom: 40px; font-family: "Noto Serif JP"; letter-spacing: 2px; }
div.image-title span { font-weight: 400; font-size: 50%; }
div.image-text { margin: 0 auto; max-width: 980px; font-size: 120%; line-height: 300%; font-family: "Noto Serif JP"; }

summary.details-summary img.pre {
  position: relative;
  top: auto;
  left: auto;
  width: 140px;
  display: inline-block;
  margin:
7px 20px 0 0;
  vertical-align: middle;
}

summary.details-summary p { display: inline-block; vertical-align: middle; font-size: 100%; color: #fff; }

@media print, screen and (max-width: 767.98px) {

div.footer-banner a:first-child { display: block; width: 100%; float: none; border: 1px solid #ECECEC; border-radius: 20px; margin-bottom: 20px; }
div.footer-banner a { display: block; width: 100%; float: none; }

span.store-ca2 { font-size: 120%; width: 100%; margin: 0; }

br.br3-sp { display: inline-block; }

main2 #head-image div.box img { margin: 0 auto 0; padding: 0 20px; }

summary.details-summary img.pre {
  position: relative;
  top: auto;
  left: auto;
  width: 50px;
  display: inline-block;
  margin:
4px 10px 0 8px;
  vertical-align: middle;
}
summary.details-summary p {
  display: inline-block;
  vertical-align: middle;
  font-size: 92%;
  color: #fff;
}

div.image-title { text-align: center; font-weight: 700; font-size: 270%; margin-bottom: 40px; }
div.image-text { font-size: 100%; }
section#content-read div.image-title img {
  max-width: 220px;
  display: inline-block;
  vertical-align: bottom;
}


}