html,
body,
div,
span,
applet,
object,
iframe,
h1,
h2,
h3,
h4,
h5,
h6,
p,
blockquote,
pre,
a,
abbr,
acronym,
address,
big,
cite,
code,
del,
dfn,
em,
img,
ins,
kbd,
q,
s,
samp,
small,
strike,
strong,
sub,
sup,
tt,
var,
b,
u,
i,
center,
dl,
dt,
dd,
ol,
ul,
li,
fieldset,
form,
label,
legend,
table,
caption,
tbody,
tfoot,
thead,
tr,
th,
td,
article,
aside,
canvas,
details,
embed,
figure,
figcaption,
footer,
hd,
hgroup,
menu,
nav,
output,
ruby,
section,
summary,
time,
mark,
audio,
video {
  margin: 0;
  padding: 0;
  border: 0;
  font-size: 100%;
  font: inherit;
  vertical-align: baseline;
}
article,
aside,
details,
figcaption,
figure,
footer,
hd,
hgroup,
menu,
nav,
section {
  display: block;
}
html {
  font-size: 10px;
}
ol,
ul {
  list-style: none;
}
blockquote,
q {
  quotes: none;
}
blockquote:before,
blockquote:after {
  content: '';
  content: none;
}
q:before,
q:after {
  content: '';
  content: none;
}
table {
  border-collapse: collapse;
  border-spacing: 0;
}
* {
  box-sizing: border-box;
}
html,
body {
  height: 100%;
  font-family: Hiragino Sans, Hiragino Kaku Gothic ProN, YuGothic, Yu Gothic Medium, Yu Gothic, Meiryo, Verdana, Tahoma, Arial, sans-serif;
  color: #333;
  background: #fff;
}
body {
  overflow-scrolling: touch;
  -webkit-overflow-scrolling: touch;
}
a {
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  transition: all 0.1s ease;
}
a:hover {
  opacity: 0.7;
}
input {
  padding: 0;
}
.wrapper {
  padding: 120px 0 200px;
  position: relative;
}
@media only screen and (max-width: 1080px) {
  .wrapper {
    padding: 110px 0 200px;
  }
}
.wrapper:not(.no-bg):after {
  position: absolute;
  bottom: -1px;
  right: 144px;
  content: "";
  width: 187px;
  height: 76px;
  background: url("/wall-guitar.png");
  background-size: cover;
  transform: rotateX(180deg);
}
@media only screen and (max-width: 1080px) {
  .wrapper:not(.no-bg):after {
    right: 20px;
  }
}
.wrapper__index {
  padding-top: 70px;
}
@media only screen and (max-width: 1080px) {
  .wrapper__index {
    padding-top: 90px;
  }
}
.data-confirmation {
  position: fixed;
  bottom: 0;
  left: 0;
  z-index: 65535;
  background: rgba(255,255,255,0.8);
  padding: 8px;
  width: 100%;
  display: none;
}
.data-confirmation-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1100px;
  margin: 0 auto;
}
.data-confirmation-text {
  font-size: 14px;
  line-height: 1.6;
  color: #666;
}
.data-confirmation-button {
  font-size: 14px;
  background: #f7ccd4;
  color: #333;
  padding: 2px 0;
  width: 60px;
  margin-left: 8px;
  text-align: center;
  border-radius: 3px;
  flex-shrink: 0;
  transition: all 0.1s ease;
}
.data-confirmation-button:hover {
  opacity: 0.7;
}
.hd {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 70px;
  background-color: rgba(255,255,255,0.9);
  z-index: 65535;
  border-bottom: 1px solid #f2f2f2;
}
@media only screen and (max-width: 1080px) {
  .hd {
    height: auto;
  }
}
.hd-logo {
  display: flex;
  align-items: center;
}
.hd-logo img {
  height: 36px;
  width: auto;
}
@media only screen and (max-width: 1080px) {
  .hd-logo img {
    height: 28px;
  }
}
.hd-logo-text {
  font-size: 20px;
  margin-left: 10px;
  font-family: 'IBM Plex Mono', monospace;
}
@media only screen and (max-width: 1080px) {
  .hd-logo-text {
    font-size: 16px;
    padding-bottom: 2px;
  }
}
.hd-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 1100px;
  margin: 0 auto;
  height: 100%;
}
@media only screen and (max-width: 1080px) {
  .hd-inner {
    width: 100%;
    padding: 10px;
    flex-direction: column;
  }
}
.hd-col {
  font-size: 16px;
  display: flex;
}
.hd-col.sub:not(:first-child) {
  margin-left: 20px;
}
@media only screen and (max-width: 1080px) {
  .hd-col {
    width: 100%;
    display: flex;
    justify-content: center;
  }
}
@media only screen and (max-width: 1080px) {
  .hd-col.hide-mb {
    display: none;
  }
}
@media only screen and (max-width: 1080px) {
  .hd-col+.hd-col {
    margin-top: 10px;
  }
}
.hd-col-item {
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0.8);
  padding: 0 8px;
}
@media only screen and (max-width: 1080px) {
  .hd-col-item {
    line-height: 20px;
    padding: 10px;
  }
}
.hd-col-item + .hd-col-item {
  margin-left: 8px;
}
@media only screen and (max-width: 1080px) {
  .hd-col-item + .hd-col-item {
    margin-left: 0;
    margin-top: 4px;
  }
}
.hd-col-item-sub {
  display: flex;
  align-items: center;
  line-height: 20px;
}
.hd-col-item-sub + .hd-col-item-sub {
  margin-left: 8px;
}
.ft {
  background: #1d4763;
  color: #fff;
  border-top: 1px solid #e2e2e2;
}
.ft-inner {
  width: 1100px;
  margin: 0 auto;
  padding: 20px 0;
}
@media only screen and (max-width: 1080px) {
  .ft-inner {
    width: auto;
    padding: 10px;
  }
}
.ft-copy {
  font-size: 13px;
  text-align: right;
}
.ft-copy:not(:first-child) {
  margin-top: 20px;
}
@media only screen and (max-width: 1080px) {
  .ft-copy {
    text-align: center;
  }
}
.ft-links {
  display: flex;
  flex-wrap: wrap;
  flex-direction: row-reverse;
}
@media only screen and (max-width: 1080px) {
  .ft-links {
    padding: 0 10px;
    flex-direction: column;
  }
}
.ft-link-item {
  display: inline-block;
  position: relative;
  padding: 0 0 0 15px;
  font-size: 16px;
  line-height: 1.2;
}
@media only screen and (max-width: 1080px) {
  .ft-link-item {
    font-size: 13px;
  }
}
.ft-link-item:before {
  position: absolute;
  top: 0;
  left: 0;
  content: "";
  width: 3px;
  height: 100%;
  background: #fff;
}
.ft-link-item+.ft-link-item {
  margin-right: 20px;
}
@media only screen and (max-width: 1080px) {
  .ft-link-item+.ft-link-item {
    margin-left: 0;
    margin-top: 6px;
  }
}
.ft-link-name {
  font-size: 13px;
  margin-bottom: 10px;
  padding-left: 12px;
  position: relative;
}
.ft-link-hd {
  font-size: 16px;
  font-weight: bold;
  position: relative;
  padding-left: 15px;
  margin-bottom: 15px;
}
.ft-link-hd:before {
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  content: "";
  background: #333;
}
.main {
  margin-bottom: 150px;
  padding-top: 20px;
  font-size: 16px;
}
@media only screen and (max-width: 1080px) {
  .main {
    width: auto;
    margin-bottom: 80px;
  }
}
.login {
  margin-top: 200px;
}
.about {
  display: flex;
  align-items: center;
  background: url("/wall.png") repeat;
  border-bottom: 1px solid #ddd;
}
@media only screen and (max-width: 1080px) {
  .about {
    background-size: 60%;
  }
}
.about-inner {
  width: 1100px;
  margin: 0 auto;
  background: rgba(255,255,255,0.8);
  padding: 40px 20px 20px;
}
.about-logo {
  width: 80%;
  max-width: 420px;
  height: auto;
  margin: 0 auto 10px;
}
.about-logo img {
  width: 100%;
  height: auto;
  vertical-align: top;
}
.about-text {
  width: 100%;
  line-height: 1.8;
  font-size: 20px;
}
@media only screen and (max-width: 1080px) {
  .about-text {
    font-size: 16px;
  }
}
.about-text em {
  font-weight: bold;
  text-shadow: 0 0 1px #f3a9a9;
}
.tool-content {
  margin-top: 50px;
}
.tool-content p,
.tool-content code {
  display: block;
  width: 100%;
  min-height: 100px;
  background: #e6f9e6;
  border: 1px solid #ddd;
  border-radius: 3px;
  padding: 10px;
  font-family: 'IBM Plex Mono', monospace;
}
.tool-content ul:not(:first-child) {
  margin-top: 40px;
}
.tool-content li {
  padding-left: 20px;
  position: relative;
}
.tool-content li:before {
  position: absolute;
  top: 50%;
  left: 0;
  transform: translate(0, -50%);
  content: "";
  width: 5px;
  height: 5px;
  background: #ea5b76;
}
.tool-content figure:empty {
  width: 100%;
  height: 220px;
  background: #d2d2d2;
}
.tool-content *:not(:first-child) {
  margin-top: 20px;
}
.section a:not(.button) {
  color: #00a479;
}
.section + .section {
  padding-top: 70px;
}
@media only screen and (max-width: 1080px) {
  .section + .section {
    padding-top: 40px;
  }
}
.section__course {
  background: linear-gradient(45deg, #fff, #c4d9db);
  padding-bottom: 70px;
}
@media only screen and (max-width: 1080px) {
  .section__course {
    padding-bottom: 40px;
  }
}
.section-hd-sub {
  font-size: 32px;
  text-align: center;
  position: relative;
  color: #1d4763;
}
@media only screen and (max-width: 1080px) {
  .section-hd-sub {
    font-size: 26px;
    margin: 0 10px;
  }
}
.section-hd-min {
  font-size: 20px;
  color: #1d4763;
}
.chapter-list {
  padding-top: 50px;
}
.chapter-title,
.page-content h3 {
  font-size: 20px;
  margin-bottom: 10px;
  padding: 6px 0 6px 20px;
  position: relative;
}
@media only screen and (max-width: 1080px) {
  .chapter-title,
  .page-content h3 {
    font-size: 16px;
  }
}
.chapter-title:before,
.page-content h3:before {
  position: absolute;
  top: 0;
  left: 0;
  content: "";
  background: #5fc1c7;
  width: 3px;
  height: 100%;
  display: block;
}
.chapter-pages {
  display: flex;
  flex-wrap: wrap;
}
@media only screen and (max-width: 1080px) {
  .chapter-pages {
    flex-direction: column;
  }
}
.lessons-description {
  font-size: 14px;
  text-align: center;
  width: 1100px;
  margin: 0 auto 20px;
}
.lesson {
  width: 48%;
  border: 1px solid #e2e2e2;
  position: relative;
  border-radius: 3px;
}
@media only screen and (max-width: 1080px) {
  .lesson {
    width: auto;
    margin-top: 10px;
  }
}
.lesson.tool {
  background: #fff2cf;
}
.lesson:not(:nth-child(2n)) {
  margin-right: 4%;
}
@media only screen and (max-width: 1080px) {
  .lesson:not(:nth-child(2n)) {
    margin-right: 0;
  }
}
.lesson:nth-child(n+3) {
  margin-top: 10px;
}
.lesson[data-done="true"] {
  border: 1px solid #22d01f;
}
.lesson[data-done="true"]:before {
  position: absolute;
  top: 6px;
  right: 15px;
  width: 6px;
  height: 18px;
  content: "";
  background: transparent;
  border-width: 5px;
  border-style: solid;
  border-color: transparent #22d01f #22d01f transparent;
  transform: rotate(32deg);
  z-index: 128;
}
@media only screen and (max-width: 1080px) {
  .lesson[data-done="true"]:before {
    display: none;
  }
}
.lesson-link-area {
  display: flex;
  padding: 12px;
  height: 100%;
}
.lesson-image {
  width: 100px;
  height: 100px;
  border-radius: 3px;
}
.lesson-image:empty {
  background: #ddd;
}
.lesson-info {
  width: 100%;
}
.lesson-title {
  font-size: 16px;
}
.lesson-desc {
  font-size: 16px;
  color: #888;
}
.topics-item {
  font-size: 16px;
  line-height: 1.9;
}
.topics-item a {
  color: #00a479;
}
.topics-list {
  display: flex;
  flex-wrap: wrap;
}
.topics-group {
  width: 50%;
}
.topics-group:nth-child(n+3) {
  margin-top: 30px;
}
.article {
  width: 1100px;
  margin: 0 auto;
}
@media only screen and (max-width: 1080px) {
  .article {
    width: auto;
    margin-left: 10px;
    margin-right: 10px;
  }
}
.article-hd {
  margin-bottom: 10px;
}
.article-title {
  font-size: 20px;
  line-height: 30px;
  border-bottom: 1px solid #aaa;
  margin-bottom: 20px;
  padding: 0 0 5px 0;
}
@media only screen and (max-width: 1080px) {
  .article-title {
    text-align: center;
    margin-bottom: 10px;
  }
}
.article-goal {
  font-size: 16px;
}
.article-sub-title {
  margin-bottom: 20px;
  font-size: 20px;
  position: relative;
  padding-left: 25px;
}
@media only screen and (max-width: 1080px) {
  .article-sub-title {
    margin-bottom: 10px;
    padding-left: 15px;
    font-size: 16px;
  }
}
.article-sub-title:before {
  position: absolute;
  top: 0;
  left: 0;
  content: "";
  width: 5px;
  height: 100%;
  background: #333;
}
.article-goal-text p:before {
  content: "・";
  display: inline;
}
.code-pane {
  position: relative;
}
@media only screen and (max-width: 1080px) {
  .code-pane {
    display: flex;
    flex-direction: column;
  }
}
.code {
  font-family: IBM Plex Mono;
  background: #eff1f2;
  padding: 2px 8px;
  border-radius: 3px;
}
.code_helper {
  position: absolute;
  right: 0;
  top: 0;
  width: 400px;
  height: 100%;
  border: 1px solid #f7ccd4;
  border-left: none;
  font-size: 13px;
  background: rgba(252,255,207,0.8);
  z-index: 32;
}
.code_helper[data-annotation="on"] {
  -webkit-animation-fill-mode: forwards;
          animation-fill-mode: forwards;
  -webkit-animation-name: annotation_2;
          animation-name: annotation_2;
  -webkit-animation-duration: 1s;
          animation-duration: 1s;
  -webkit-animation-iteration-count: 3;
          animation-iteration-count: 3;
}
.code_helper a {
  color: #ea5b76;
}
@media only screen and (max-width: 1080px) {
  .code_helper {
    position: relative;
    right: auto;
    top: auto;
    width: auto;
    height: auto;
    border: none;
  }
}
.code_helper_nav {
  display: flex;
  justify-content: center;
  padding: 10px 0;
}
@media only screen and (max-width: 1080px) {
  .code_helper_nav {
    padding: 4px 0;
  }
}
.code_helper_nav_item {
  line-height: 18px;
  height: 18px;
  font-size: 13px;
}
.code_helper_content {
  padding: 10px;
}
.code_helper_chunk + .code_helper_chunk {
  margin-top: 15px;
}
.code_helper_chunk_title {
  display: inline-block;
  background: #fff;
  padding: 2px 4px;
  border-radius: 3px;
  border: 1px solid #ddd;
}
.code_helper_chunk_text {
  padding-top: 5px;
  border-top: 1px dashed #aaa;
  margin-top: 5px;
}
.code_helper_chunk_text img {
  width: 100%;
  height: auto;
  margin-top: 10px;
  border: 1px solid #ddd;
}
.code_validation {
  position: absolute;
  bottom: 1px;
  right: 400px;
  display: flex;
  align-items: center;
  flex-direction: row-reverse;
  z-index: 32;
}
@media only screen and (max-width: 1080px) {
  .code_validation {
    display: none;
  }
}
.guide-alert {
  color: #e62424;
  margin: 10px 0;
  font-size: 16px;
  background: #cecece;
  padding: 10px;
  border-radius: 3px;
}
.row.sample {
  background: #fdffd8;
  border: 1px solid #ddd;
  border-radius: 3px;
  padding: 5px 10px;
  letter-spacing: 1px;
  font-family: 'IBM Plex Mono', monospace;
}
.row:not(:first-child) {
  margin-top: 10px;
}
.button {
  padding: 6px 20px;
  display: block;
  background: #fff;
  border-radius: 3px;
  font-size: 16px;
  cursor: pointer;
  color: #333;
  text-align: center;
  transition: all 0.2s ease;
  position: relative;
}
@media only screen and (max-width: 1080px) {
  .button {
    padding: 3px 15px;
  }
}
.button + .button {
  margin-left: 10px;
}
.button.active {
  background: #94ecd5;
  color: #00a479;
}
.button.in-active {
  background: #e8e8e8;
  color: #aaa;
  cursor: default;
}
.button.normal {
  background: transparent;
  border: 1px solid #91a3af;
  color: #91a3af;
}
.button.finished {
  background: #fff;
  border: 1px solid #2ada47;
  color: #2ada47;
  cursor: default;
}
.button.finished:after {
  position: absolute;
  top: 50%;
  right: 30px;
  transform: rotate(30deg) translate(0, -65%);
  display: inline-block;
  content: '';
  width: 4px;
  height: 15px;
  border-width: 4px;
  border-style: solid;
  border-color: transparent #2ada47 #2ada47 transparent;
}
.button:not(.finished):hover {
  opacity: 0.7;
}
.button.in-active:hover {
  opacity: 1;
}
.cursors {
  display: flex;
  align-items: center;
  justify-content: center;
}
.cursors:not(:first-child) {
  margin-top: 4px;
}
.cursor {
  width: 30px;
  height: 30px;
  position: relative;
  z-index: 1;
  cursor: pointer;
  transition: opacity 0.2s ease;
}
.cursor.hidden {
  visibility: hidden;
  cursor: default;
}
.cursor:hover {
  opacity: 0.7;
}
.cursor:before,
.cursor:after {
  position: absolute;
  left: 12px;
  content: "";
  width: 3px;
  height: 12px;
  background: #333;
}
.cursor.l:before {
  top: 6px;
  transform: rotate(45deg);
}
.cursor.l:after {
  top: 13px;
  transform: rotate(-225deg);
}
.cursor.r:before {
  top: 13px;
  transform: rotate(45deg);
}
.cursor.r:after {
  top: 6px;
  transform: rotate(-225deg);
}
.position {
  font-size: 16px;
}
.position:not(:first-child) {
  margin-left: 10px;
}
.position:not(:first-child) {
  margin-right: 10px;
}
.keywords {
  margin-top: 30px;
}
.keyword-list {
  display: flex;
  justify-content: space-between;
  margin-top: 10px;
}
@media only screen and (max-width: 1080px) {
  .keyword-list {
    flex-direction: column;
  }
}
.keyword-item {
  width: 48%;
}
@media only screen and (max-width: 1080px) {
  .keyword-item {
    width: auto;
    margin-top: 10px;
  }
}
.keyword-title {
  font-weight: bold;
  border-bottom: 1px solid #aaa;
  margin-bottom: 8px;
}
.keyword-text {
  font-size: 16px;
}
.next-link {
  margin: 80px auto 0;
  width: 500px;
}
@media only screen and (max-width: 1080px) {
  .next-link {
    width: auto;
    margin: 40px 10px 0;
  }
}
.next-link-item + .next-link-item {
  margin-top: 15px;
}
.main-section {
  width: 1100px;
  margin: 0 auto;
}
@media only screen and (max-width: 1080px) {
  .main-section {
    width: auto;
    margin-right: 10px;
    margin-left: 10px;
  }
}
.main-section:first-child {
  margin-top: 60px;
}
@media only screen and (max-width: 1080px) {
  .main-section:first-child {
    margin-top: 20px;
  }
}
.main-section:not(:first-child) {
  margin-top: 80px;
}
@media only screen and (max-width: 1080px) {
  .main-section:not(:first-child) {
    margin-top: 40px;
  }
}
.main-section-hd {
  font-size: 24px;
  margin-bottom: 30px;
  padding-left: 25px;
  position: relative;
}
@media only screen and (max-width: 1080px) {
  .main-section-hd {
    font-size: 20px;
    margin-bottom: 15px;
    padding-left: 15px;
  }
}
.main-section-hd:before {
  position: absolute;
  top: 0;
  left: 0;
  content: "";
  background: #333;
  width: 5px;
  height: 100%;
}
.main-section-hd.sub {
  font-size: 20px;
}
.main-section-hd.sub:not(:first-child) {
  margin-top: 30px;
}
.main-section-text a {
  color: #ea5b76;
}
.main-section-text + .main-section-text {
  margin-top: 20px;
}
.main_nav {
  padding: 70px 0 40px;
  display: flex;
  margin: 0 auto;
  justify-content: center;
  width: 1100px;
}
.main_nav_item {
  padding: 0 20px 7px;
  font-size: 16px;
  position: relative;
  cursor: pointer;
}
.main_nav_item.current:before {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translate(-50%, 0);
  content: "";
  width: 80%;
  height: 2px;
  background: #ea5b76;
}
.main_nav_item + .main_nav_item {
  margin-left: 20px;
}
.concept-item {
  padding-left: 120px;
  position: relative;
}
@media only screen and (max-width: 1080px) {
  .concept-item {
    padding-left: 0;
  }
}
.concept-item:not(:first-child) {
  margin-top: 30px;
}
.concept-item:before {
  position: absolute;
  top: 50%;
  left: 0;
  content: "";
  width: 90px;
  height: 90px;
  -webkit-animation-fill-mode: forwards;
          animation-fill-mode: forwards;
  -webkit-animation-iteration-count: infinite;
          animation-iteration-count: infinite;
  -webkit-animation-name: inst;
          animation-name: inst;
  -webkit-animation-duration: 2s;
          animation-duration: 2s;
  transform: translate(0, -50%);
}
@media only screen and (max-width: 1080px) {
  .concept-item:before {
    display: none;
  }
}
.concept-item:nth-child(1):before {
  background: url("/inst-01.png");
  background-size: cover;
  -webkit-animation-delay: 2s;
          animation-delay: 2s;
}
.concept-item:nth-child(2):before {
  background: url("/inst-02.png");
  background-size: cover;
  -webkit-animation-delay: 2.5s;
          animation-delay: 2.5s;
}
.concept-item:nth-child(3):before {
  background: url("/inst-03.png");
  background-size: cover;
  -webkit-animation-name: inst;
          animation-name: inst;
  -webkit-animation-delay: 3s;
          animation-delay: 3s;
}
.concept-hd {
  font-size: 22px;
  font-weight: bold;
  margin-bottom: 5px;
  color: #717120;
}
@media only screen and (max-width: 1080px) {
  .concept-hd {
    font-size: 16px;
  }
}
.feature-item {
  padding: 15px;
  background: #eee;
  border-radius: 4px;
}
@media only screen and (max-width: 1080px) {
  .feature-item {
    padding: 10px;
  }
}
.feature-item.main-item {
  background: #fdffcf;
}
.feature-item + .feature-item {
  margin-top: 25px;
}
.feature-item-inner {
  display: flex;
  transition: 0.2s all ease;
}
@media only screen and (max-width: 1080px) {
  .feature-item-inner {
    flex-flow: column;
  }
}
.feature-item-inner:hover {
  opacity: 0.7;
}
.feature-item-col .img {
  width: 160px;
  position: relative;
  top: 50%;
  transform: translateY(-50%);
}
@media only screen and (max-width: 1080px) {
  .feature-item-col .img {
    width: 120px;
    top: auto;
    transform: none;
    margin: 0 auto;
  }
}
.feature-item-col .img img {
  width: 100%;
  height: auto;
  vertical-align: top;
}
.feature-item-col:not(:last-child) {
  margin-right: 15px;
}
@media only screen and (max-width: 1080px) {
  .feature-item-col:not(:last-child) {
    margin-bottom: 10px;
  }
}
.feature-item-hd {
  font-weight: bold;
  font-size: 22px;
  margin-bottom: 10px;
  padding-bottom: 10px;
  border-bottom: 1px dashed #888;
}
@media only screen and (max-width: 1080px) {
  .feature-item-hd {
    font-size: 20px;
  }
}
.feature-item-text {
  font-size: 16px;
  line-height: 1.5;
}
.feature-item-text p {
  padding-left: 1em;
}
.feature-item-text p:before {
  content: "・";
  display: inline-block;
  text-indent: -1em;
}
.feature-item-text p + p {
  margin-top: 10px;
}
.feature-catch {
  display: inline-block;
  background: #f3a9a9;
  padding: 2px 6px;
  border-radius: 4px;
  margin-bottom: 5px;
}
@media only screen and (max-width: 1080px) {
  .feature-catch {
    padding: 2px;
  }
}
.page-header {
  position: relative;
}
@media only screen and (max-width: 1080px) {
  .page-header-image {
    display: none;
  }
}
.page-header-image img {
  width: 100%;
  height: auto;
  vertical-align: top;
}
.page-footer {
  margin-top: 60px;
}
.page-title {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 36px;
  text-align: center;
  display: block;
  padding: 1px 10px;
  color: #fff;
  background: rgba(0,0,0,0.8);
}
@media only screen and (max-width: 1080px) {
  .page-title {
    position: relative;
    top: auto;
    left: auto;
    transform: none;
    font-size: 24px;
  }
}
.page-title:only-child {
  position: relative;
  top: auto;
  left: auto;
  transform: none;
  background: none;
  color: #1d4763;
  font-weight: bold;
}
.page-inner {
  padding-top: 50px;
}
.page-content {
  font-size: 16px;
  margin-top: 40px;
  line-height: 1.9;
}
@media only screen and (max-width: 1080px) {
  .page-content {
    margin: 20px 10px 0;
  }
}
.page-content p img {
  vertical-align: middle;
}
.page-content p:not(:first-child) {
  margin-top: 30px;
}
@media only screen and (max-width: 1080px) {
  .page-content p:not(:first-child) {
    margin-top: 20px;
  }
}
.page-content a:not(.button) {
  color: #00a479;
  text-decoration: none;
}
.page-content em {
  font-weight: bold;
  color: #060661;
}
.page-content h2 {
  font-size: 26px;
  font-weight: bold;
  padding-bottom: 3px;
  margin: 0 0 30px;
  position: relative;
}
.page-content h2:not(:first-child) {
  margin-top: 50px;
}
@media only screen and (max-width: 1080px) {
  .page-content h2 {
    font-size: 20px;
  }
}
.page-content h2:after {
  position: absolute;
  bottom: 0;
  left: 0;
  content: '';
  width: 100%;
  height: 1px;
  background: #aaa;
}
@media only screen and (max-width: 1080px) {
  .page-content h2 {
    margin-top: 20px;
  }
}
.page-content h3:not(:first-child) {
  margin-top: 50px;
}
@media only screen and (max-width: 1080px) {
  .page-content h3:not(:first-child) {
    margin-top: 35px;
  }
}
.page-content .mt,
.page-content .mt:not(:first-child) {
  margin-top: 60px;
}
@media only screen and (max-width: 1080px) {
  .page-content .mt,
  .page-content .mt:not(:first-child) {
    margin-top: 30px;
  }
}
.page-content figure {
  margin-top: 25px;
  margin-bottom: 25px;
  padding: 10px;
  background: #ddd;
  border-radius: 3px;
  display: inline-block;
}
.page-content figure:empty {
  width: 500px;
  height: 300px;
}
.page-content figure.no-frame {
  padding: 0;
  background: transparent;
}
.page-content figure.center {
  display: block;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}
@media only screen and (max-width: 1080px) {
  .page-content figure {
    margin-top: 10px;
    margin-bottom: 10px;
    padding: 6px;
  }
}
.page-content img {
  vertical-align: top;
  max-width: 100%;
}
.page-content .__group,
.page-content ul,
.page-content pre,
.page-content .insert {
  margin: 20px 0;
  padding: 15px 20px;
  background: #ddeff0;
  border-radius: 3px;
  border: 1px solid #ddd;
}
.page-content li {
  padding-left: 1em;
  position: relative;
}
.page-content li:before {
  position: absolute;
  top: 50%;
  left: 0;
  content: "";
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: #333;
}
.page-content li:not(:last-child) {
  margin-bottom: 8px;
}
.page-content code {
  font-size: 13px;
  padding-left: 20px;
  font-family: IBM Plex Mono;
  letter-spacing: 1px;
  white-space: pre;
  border-radius: 3px;
  border: 1px solid #b0b03d;
}
.page-content .sample {
  margin: 20px 0;
}
.page-content .insert {
  background: transparent;
  border: 2px dashed #ddd;
}
.page-content .slack {
  display: none;
  padding-top: 60px;
  padding-bottom: 5px;
  border-top: 2px dashed #ddd;
  border-bottom: 2px dashed #ddd;
  position: relative;
}
.page-content .slack:before {
  display: block;
  position: absolute;
  top: 15px;
  left: 10px;
  content: "";
  width: 130px;
  height: 34.25px;
  background: url("/logo-slack.png");
  background-size: cover;
}
.page-content .slack:not(:first-child) {
  margin-top: 60px;
}
[data-use-support="true"] .page-content .slack {
  display: block;
}
.textarea-for-copy {
  width: 100%;
  height: 200px;
  border: 1px solid #ddd;
  padding: 20px;
  border-radius: 5px;
  color: #888;
}
.part-list {
  display: table;
}
.part-list-row,
.part-list-row__head {
  display: table-row;
}
.part-list-cell {
  display: table-cell;
  padding: 0 20px;
}
.part-list-cell.head {
  color: #888;
}
.part-list-cell:not(.head) {
  font-family: IBM Plex Mono;
}
.part-list-cell:first-child {
  padding-left: 0;
}
.part-list-cell:not(:first-child) {
  border-left: 1px solid #ddd;
}
.infos {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}
@media only screen and (max-width: 1080px) {
  .infos {
    flex-direction: column;
  }
}
.info-item {
  width: 48%;
}
.info-item:nth-child(n+3) {
  margin-top: 40px;
}
@media only screen and (max-width: 1080px) {
  .info-item:nth-child(n+3) {
    margin-top: 15px;
  }
}
@media only screen and (max-width: 1080px) {
  .info-item {
    width: 100%;
    margin-top: 15px;
  }
}
.info-hd {
  margin-bottom: 5px;
  font-size: 18px;
  font-weight: bold;
}
@media only screen and (max-width: 1080px) {
  .info-hd {
    font-size: 16px;
  }
}
.info-image {
  margin: 0 auto 10px;
  overflow: hidden;
  text-align: center;
}
.info-image img {
  vertical-align: top;
  width: auto;
  height: 160px;
}
@media only screen and (max-width: 1080px) {
  .info-image img {
    height: 100px;
  }
}
.info-text {
  font-size: 16px;
  line-height: 1.8;
}
.info-text a {
  color: #ea5b76;
  text-decoration: underline;
}
.nav-course {
  margin: 0 auto;
  width: 1100px;
}
.nav-course a {
  font-size: 14px;
  color: #888;
}
@media only screen and (max-width: 1080px) {
  .nav-course {
    margin-left: 10px;
    margin-right: 10px;
    text-align: center;
    width: auto;
  }
}
.login-form {
  margin: 40px auto 0;
  width: 700px;
  font-size: 16px;
}
@media only screen and (max-width: 1080px) {
  .login-form {
    width: auto;
    margin-left: 10px;
    margin-right: 10px;
  }
}
.login-form-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
@media only screen and (max-width: 1080px) {
  .login-form-row {
    flex-direction: column;
    align-items: flex-start;
  }
}
.login-form-row:not(:first-child) {
  margin-top: 20px;
}
.login-form-row-label {
  width: 200px;
  margin-right: 10px;
  color: #aaa;
}
@media only screen and (max-width: 1080px) {
  .login-form-row-label {
    width: auto;
    margin-right: 0;
    margin-bottom: 6px;
  }
}
.login-form-row-value {
  width: calc(100% - 200px - 10px);
}
@media only screen and (max-width: 1080px) {
  .login-form-row-value {
    width: 100%;
  }
}
.login-form-row-value input {
  width: 100%;
  padding: 4px 0 4px 8px;
  border: 1px solid #aaa;
  border-radius: 3px;
  font-size: 16px;
  height: 40px;
  line-height: 40px;
}
.login-form-row-value a {
  color: #00a479;
}
.StripeElement {
  border-bottom: 1px solid #aaa;
}
@media only screen and (max-width: 1080px) {
  .StripeElement {
    width: 100%;
  }
}
.error {
  color: #de3838;
}
.not-found {
  max-width: 600px;
  margin: 100px auto 0;
  padding: 10px;
  font-size: 16px;
  text-align: center;
}
.outline {
  max-width: 1100px;
  margin: 80px auto 250px;
}
@media only screen and (max-width: 1080px) {
  .outline {
    margin: 80px auto 100px;
  }
}
.panes {
  display: flex;
  justify-content: space-between;
}
@media only screen and (max-width: 1080px) {
  .panes {
    flex-direction: column;
  }
}
@media only screen and (max-width: 1080px) {
  .pane + .pane {
    margin-top: 30px;
  }
}
.pane-sub {
  width: 270px;
  min-height: 100%;
  padding: 20px 10px 0;
  position: fixed;
  top: 70px;
  background: #f2f2f2;
  box-shadow: 0 0 5px rgba(0,0,0,0.2);
  z-index: 512;
}
@media only screen and (max-width: 1080px) {
  .pane-sub {
    position: static;
    margin: 30px 10px 0;
    width: auto;
    padding: 20px 10px;
    border-radius: 3px;
    box-shadow: none;
  }
}
.pane-sub-inner {
  height: 550px;
  position: relative;
  overflow: scroll;
  position: relative;
}
.pane-sub-link {
  font-size: 14px;
  display: block;
}
.pane-sub-link + .pane-sub-link {
  margin-top: 4px;
}
.links .pane-sub-link {
  color: #00a479;
}
.pane-sub-link.page {
  position: relative;
  padding-left: 10px;
  color: #888;
}
.pane-sub-link.page:before {
  position: absolute;
  top: 50%;
  left: 0;
  width: 3px;
  height: 3px;
  content: '';
  border-radius: 50%;
  background: #888;
  transform: translateY(-50%);
}
.pane-sub-link.page[data-current='true'] {
  color: #1d4763;
  font-weight: bold;
  cursor: default;
}
.pane-sub-link.page[data-current='true']:hover {
  opacity: 1;
}
.pane-sub-link-course {
  font-weight: bold;
}
.pane-main {
  width: calc(100% - 270px - 30px);
  margin-left: 300px;
}
@media only screen and (max-width: 1080px) {
  .pane-main {
    width: calc(100% - 20px);
    margin: 0 auto;
  }
}
.pane-sub-course + .pane-sub-course {
  margin-top: 30px;
}
.pane-sub-course.sign-out {
  color: #888;
  margin-top: 60px;
}
.pane-sub-course-row + .pane-sub-course-row {
  margin-top: 15px;
}
.top {
  background-image: url("/key-visual.jpg");
  background-size: 100% auto;
  background-position: 0 50%;
  background-color: #ddd;
}
.top-inner {
  width: 1100px;
  margin: 0 auto;
  padding: 150px 0;
}
@media only screen and (max-width: 1080px) {
  .top-inner {
    width: auto;
    padding: 60px 20px;
  }
}
.top-text {
  font-size: 28px;
  line-height: 1.8;
  display: inline-block;
  background: rgba(0,0,0,0.7);
  color: #fff;
  padding: 0 0 0 5px;
  position: relative;
}
.top-text:before {
  position: absolute;
  top: -3px;
  right: -5px;
  content: "";
  width: 0;
  height: 0;
  border-width: 12px;
  border-style: solid;
  border-color: #da04bc #da04bc transparent transparent;
}
.top-text:after {
  position: absolute;
  bottom: -7px;
  left: -4px;
  content: "";
  width: 0;
  height: 0;
  border-width: 10px;
  border-style: solid;
  border-color: transparent transparent #e6e500 #e6e500;
}
@media only screen and (max-width: 1080px) {
  .top-text {
    font-size: 18px;
    padding: 0 10px 0 10px;
  }
}
@media only screen and (max-width: 1080px) {
  .top-text br {
    display: none;
  }
}
.section-hd {
  text-align: center;
}
@media only screen and (max-width: 1080px) {
  .section-hd {
    margin: 0 10px;
  }
}
.section-hd .ja {
  color: #1d4763;
  font-size: 40px;
  line-height: 1.2;
}
@media only screen and (max-width: 1080px) {
  .section-hd .ja {
    font-size: 30px;
  }
}
.section-hd .en {
  color: #91a3af;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 18px;
}
.section-hd .en:first-letter {
  text-transform: uppercase;
}
@media only screen and (max-width: 1080px) {
  .section-hd .en {
    font-size: 16px;
  }
}
.section-sub-hd {
  font-size: 26px;
  text-align: center;
}
@media only screen and (max-width: 1080px) {
  .section-sub-hd {
    font-size: 22px;
    padding: 0 10px;
  }
}
.course-content {
  margin: 40px auto 0;
  display: table;
  width: 900px;
}
@media only screen and (max-width: 1080px) {
  .course-content {
    width: auto;
  }
}
.course-row {
  display: flex;
  align-items: center;
}
.course-row:not(:first-child) {
  border-top: 1px solid #aaa;
}
.course-cell {
  width: 42%;
  font-size: 16px;
  padding: 20px 10px;
  line-height: 1.8;
}
@media only screen and (max-width: 1080px) {
  .course-cell {
    padding: 15px 6px;
  }
}
.course-cell.price {
  text-align: center;
}
.course-cell.course-cell__label {
  width: 16%;
  font-size: 22px;
  color: #888;
  text-align: center;
}
@media only screen and (max-width: 1080px) {
  .course-cell.course-cell__label {
    font-size: 16px;
    font-weight: bold;
  }
}
.course-cell.common {
  width: 84%;
}
.course-row:first-child .course-cell {
  padding-top: 0;
}
.course-col-hd {
  font-size: 22px;
  text-align: center;
}
@media only screen and (max-width: 1080px) {
  .course-col-hd {
    font-size: 16px;
  }
}
.course-outlines {
  margin: 50px auto;
  width: 1100px;
}
@media only screen and (max-width: 1080px) {
  .course-outlines {
    width: auto;
    margin: 20px auto;
    padding: 0 10px;
  }
}
.course-outline-item {
  position: relative;
  padding: 20px;
  border-radius: 3px;
  background: #fff;
  box-shadow: 0 0 7px rgba(22,71,99,0.3);
}
.course-outline-item + .course-outline-item {
  margin-top: 40px;
}
@media only screen and (max-width: 1080px) {
  .course-outline-item + .course-outline-item {
    margin-top: 20px;
  }
}
.course-outline-hd {
  font-size: 22px;
  color: #1d4763;
}
.course-outline-text {
  margin: 20px 0;
  font-size: 16px;
  line-height: 1.8;
}
.course-outline-text p:not(:first-child) {
  margin-top: 15px;
}
.course-outline-link {
  display: block;
  padding: 10px;
  text-align: center;
  font-size: 16px;
  background: #1d4763;
  color: #fff;
  border-radius: 3px;
  cursor: pointer;
  transition: all 0.2s ease;
}
a.course-outline-link:not(.button) {
  color: #fff;
}
.course-outline-link:hover {
  opacity: 0.7;
}
.price {
  font-size: 22px;
  font-weight: bold;
}
@media only screen and (max-width: 1080px) {
  .price {
    font-size: 16px;
  }
}
.composer {
  color: #1d4763;
}
.standard {
  color: #1d4763;
}
.course-outline-list {
  display: flex;
  margin-bottom: 20px;
  justify-content: space-between;
}
@media only screen and (max-width: 1080px) {
  .course-outline-list {
    flex-direction: column;
  }
}
.course-outline-list-item {
  background: #f4f4f4;
  padding: 15px;
  border-radius: 4px;
  width: 32%;
}
@media only screen and (max-width: 1080px) {
  .course-outline-list-item {
    width: 100%;
    padding: 10px 15px;
  }
}
@media only screen and (max-width: 1080px) {
  .course-outline-list-item:not(:first-child) {
    margin-top: 10px;
  }
}
.course-outline-list-hd {
  font-size: 16px;
  margin-bottom: 10px;
  color: #1d4763;
}
.course-list-skill {
  font-size: 16px;
  position: relative;
}
.course-list-skill:not(:first-child) {
  margin-top: 5px;
}
.concept {
  background: #f2f2f2;
  padding: 50px 0;
}
@media only screen and (max-width: 1080px) {
  .concept {
    padding: 20px 10px;
  }
}
.concept-inner {
  width: 800px;
  margin: 0 auto;
  position: relative;
}
@media only screen and (max-width: 1080px) {
  .concept-inner {
    width: auto;
  }
}
.concept-block+.concept-block {
  margin-top: 20px;
}
.concept-block figure {
  width: 400px;
  border: 1px solid #ddd;
  margin: 20px auto;
  background: #fff;
}
.concept-block figure img {
  width: 100%;
  height: auto;
  vertical-align: top;
}
@media only screen and (max-width: 1080px) {
  .concept-block figure {
    width: auto;
    height: auto;
    max-width: 320px;
    margin: 0 auto;
  }
}
.concept-block p {
  line-height: 1.8;
  font-size: 24px;
}
@media only screen and (max-width: 1080px) {
  .concept-block p {
    font-size: 16px;
  }
}
.concept-block p:not(:first-child) {
  margin-top: 20px;
}
.concept-block strong {
  position: relative;
}
.concept-block strong:after {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 4px;
  content: "";
  background: rgba(0,0,0,0.3);
}
.concept-block .author {
  color: #888;
  text-align: right;
}
.concept-block .author:not(:first-child) {
  margin-top: 40px;
}
@media only screen and (max-width: 1080px) {
  .concept-text:not(:last-child) {
    margin-bottom: 20px;
  }
}
.detail {
  max-width: 1100px;
  margin: 30px auto 0;
}
@media only screen and (max-width: 1080px) {
  .detail {
    margin-left: 10px;
    margin-right: 10px;
  }
}
@media only screen and (max-width: 1080px) {
  .bg__visual .detail {
    margin-left: 0;
    margin-right: 0;
  }
}
.detail-text {
  width: 700px;
  margin: 0 auto;
  font-size: 16px;
  line-height: 1.8;
  color: #333;
}
@media only screen and (max-width: 1080px) {
  .detail-text {
    width: auto;
  }
}
.detail-text p+p {
  margin-top: 20px;
}
.bg__visual .detail-text {
  color: #fff;
  background: rgba(0,0,0,0.7);
  padding: 10px 20px;
  font-size: 20px;
}
@media only screen and (max-width: 1080px) {
  .bg__visual .detail-text {
    font-size: 18px;
  }
}
.price-box {
  display: flex;
  justify-content: center;
  align-items: center;
  background: #fff6f6;
  border: 1px solid #fa7878;
  padding: 30px 0;
  border-radius: 5px;
}
.price-box+.price-box {
  margin-top: 20px;
}
@media only screen and (max-width: 1080px) {
  .price-box {
    padding: 20px 10px;
    flex-direction: column;
  }
}
.price-box-hd {
  font-size: 20px;
  margin-bottom: 20px;
  color: #1d4763;
}
.price-value {
  font-size: 28px;
  text-align: center;
  color: #fa7878;
}
.price-text {
  font-size: 16px;
  margin-left: 30px;
  padding-left: 30px;
  border-left: 1px solid #e4e4ac;
  width: 640px;
}
@media only screen and (max-width: 1080px) {
  .price-text {
    width: auto;
    margin-left: 0;
    margin-top: 15px;
    padding-left: 0;
    padding-top: 15px;
    border-left: none;
    border-top: 1px solid #e4e4ac;
  }
}
.price-text p:not(:first-child) {
  margin-top: 10px;
}
.plan {
  margin-top: 50px;
}
@media only screen and (max-width: 1080px) {
  .plan {
    margin-top: 20px;
  }
}
.plan-item {
  box-shadow: 0 0 8px rgba(0,0,0,0.3);
}
.plan-item+.plan-item {
  margin-top: 20px;
}
.plan-item-hd {
  background: url("/bg-machine.jpg");
  background-size: 50% auto;
  background-position: 0 -350px;
  color: #fff;
  display: flex;
  align-items: center;
  border-radius: 3px 3px 0 0;
}
@media only screen and (max-width: 1080px) {
  .plan-item-hd {
    padding: 5px 10px;
  }
}
.plan-item-hd-text {
  font-size: 20px;
  background: linear-gradient(to right, rgba(0,0,0,0.9), transparent);
  padding: 20px 10px 20px 30px;
  width: 100%;
}
@media only screen and (max-width: 1080px) {
  .plan-item-hd-text {
    font-size: 16px;
  }
}
.plan-item-lessons {
  padding: 20px;
  background: #f4f4f4;
  position: relative;
}
@media only screen and (max-width: 1080px) {
  .plan-item-lessons {
    padding: 10px;
  }
}
.plan-item-lessons:last-child {
  border-radius: 0 0 3px 3px;
}
.plan-item-lessons:not(:last-child):before {
  position: absolute;
  content: "";
  bottom: 0;
  left: 50%;
  width: calc(100% - 40px);
  height: 1px;
  transform: translateX(-50%);
  background: #aaa;
}
.plan-item-lessons-inner {
  display: flex;
  flex-wrap: wrap;
}
@media only screen and (max-width: 1080px) {
  .plan-item-lessons-inner {
    flex-direction: column;
  }
}
.plan-item-lesson-item {
  font-size: 16px;
  width: 33%;
}
@media only screen and (max-width: 1080px) {
  .plan-item-lesson-item {
    width: auto;
  }
}
.plan-item-lesson-item:before {
  display: inline-block;
  content: "・";
}
.plan-item-lesson-category {
  font-size: 16px;
  margin-bottom: 10px;
  color: #8ca2a4;
}
.bullet {
  padding-left: 1em;
  position: relative;
}
.bullet:before {
  position: absolute;
  top: 8px;
  left: 0;
  display: inline-block;
  content: "";
  width: 7px;
  height: 7px;
  background: #da04bc;
}
.bullet__dark:before {
  background: #1d4763;
}
@media only screen and (max-width: 1080px) {
  .flow {
    margin-top: 30px;
    margin-left: 10px;
    margin-right: 10px;
  }
}
.flow:not(:first-child) {
  margin-top: 40px;
}
@media only screen and (max-width: 1080px) {
  .course-outline-item .flow {
    margin: 0;
  }
}
.flow--item,
.flow--item__cursor {
  display: flex;
  align-items: center;
  justify-content: center;
}
@media only screen and (max-width: 1080px) {
  .flow--item,
  .flow--item__cursor {
    flex-direction: column;
  }
}
.flow--item:not(:first-child),
.flow--item__cursor:not(:first-child) {
  margin-top: 30px;
}
.flow--item__cursor {
  padding-bottom: 40px;
  position: relative;
}
@media only screen and (max-width: 1080px) {
  .flow--item__cursor {
    padding-bottom: 30px;
  }
}
.flow--item__cursor:after {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translate(-50%, -50%) rotate(45deg);
  content: "";
  border-width: 10px;
  border-style: solid;
  border-color: transparent #da04bc #da04bc transparent;
}
.flow-text {
  width: 500px;
  margin-left: 30px;
  font-size: 16px;
  line-height: 1.9;
}
.flow-text:only-child {
  width: 700px;
}
@media only screen and (max-width: 1080px) {
  .flow-text:only-child {
    width: auto;
    margin-top: 0;
  }
}
@media only screen and (max-width: 1080px) {
  .flow-text {
    width: auto;
    max-width: 500px;
    margin: 15px auto 0;
  }
}
.flow-text p + p {
  margin-top: 20px;
}
.flow-image {
  width: 440px;
  border: 1px solid #e7ecf0;
}
@media only screen and (max-width: 1080px) {
  .flow-image {
    width: auto;
    max-width: 500px;
    margin: 0 auto;
  }
}
.flow-image img {
  width: 100%;
  height: auto;
  vertical-align: top;
}
.marked {
  background: transparent linear-gradient(transparent 80%, #fafa5f 0);
}
.concept-list {
  margin: 30px auto;
  padding: 30px 0;
  background: url("/wall-ongaq.png");
  background-size: contain;
  display: flex;
  justify-content: space-around;
}
@media only screen and (max-width: 1080px) {
  .concept-list {
    flex-direction: column;
    align-items: center;
  }
}
.concept-list--item {
  padding: 30px 20px;
  width: 48%;
  background: rgba(255,255,255,0.9);
  border-radius: 3px;
  border: 1px solid #f2f2f2;
}
@media only screen and (max-width: 1080px) {
  .concept-list--item {
    width: 96%;
    padding: 20px;
  }
  .concept-list--item + .concept-list--item {
    margin-top: 20px;
  }
}
.concept-list--inner {
  max-width: 1100px;
  margin: 0 auto;
}
.concept-list--hd {
  font-size: 24px;
  margin-bottom: 20px;
  color: #1d4763;
  text-align: center;
}
.concept-list--text {
  font-size: 16px;
  line-height: 1.8;
}
.concept-list--text + .concept-list--text {
  margin-top: 20px;
}
.section-sub {
  width: 1100px;
  margin: 0 auto;
}
.section-sub:not(:first-child) {
  margin-top: 20px;
}
.section-sub:not(:last-child) {
  margin-bottom: 20px;
}
.detail-hd {
  font-size: 16px;
  font-weight: bold;
  margin-bottom: 10px;
}
.points {
  margin: 20px auto 0;
  width: 700px;
}
@media only screen and (max-width: 1080px) {
  .points {
    width: auto;
    margin-left: 10px;
    margin-right: 10px;
  }
}
.points-group+.points-group {
  margin-top: 30px;
}
.points-item {
  position: relative;
  padding: 8px 0 8px 50px;
}
@media only screen and (max-width: 1080px) {
  .points-item {
    padding: 6px 0 6px 40px;
  }
}
.points-item.__target {
  font-size: 20px;
}
@media only screen and (max-width: 1080px) {
  .points-item.__target {
    font-size: 18px;
  }
}
.points-item.__text {
  font-size: 16px;
}
@media only screen and (max-width: 1080px) {
  .points-item.__text {
    font-size: 14px;
  }
}
.points-item.__target:before {
  position: absolute;
  top: 10px;
  left: 0;
  content: "";
  width: 24px;
  height: 24px;
  border-radius: 4px;
  border: 2px solid #8ca2a4;
}
@media only screen and (max-width: 1080px) {
  .points-item.__target:before {
    width: 20px;
    height: 20px;
  }
}
.points-item.__target:after {
  position: absolute;
  top: 2px;
  left: 15px;
  content: "";
  width: 6px;
  height: 24px;
  background: transparent;
  border-width: 4px;
  border-style: solid;
  border-color: transparent #da04bc #da04bc transparent;
  transform: rotate(35deg);
}
@media only screen and (max-width: 1080px) {
  .points-item.__target:after {
    left: 11px;
    width: 5px;
    height: 18px;
  }
}
.bg__visual {
  background: url("/bg-machine.jpg");
  background-size: 50%;
  background-position: 0 -220px;
}
.text__sub {
  color: #888;
}
.recipe {
  position: relative;
}
.recipe.preparing:before {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  content: "";
  background: rgba(255,255,255,0.8);
  z-index: 512;
}
.recipe-item {
  display: flex;
}
.recipe-item + .recipe-item {
  margin-top: 10px;
}
.recipe-item-button {
  position: relative;
  width: 40px;
  height: 40px;
  transition: all 0.2s ease;
  border-radius: 3px;
  margin-right: 10px;
}
.recipe-item-button:not(.off):hover {
  cursor: pointer;
  background: #e0fff7;
}
.recipe-item-button:before {
  position: absolute;
  top: 12px;
  left: 9px;
  content: "";
  transform: rotate(-45deg);
  width: 0;
  height: 0;
  border-width: 7px;
  border-color: transparent #00a479 #00a479 transparent;
  border-style: solid;
  transition: all 0.2s ease;
}
.recipe-item-button.off:before {
  border-color: transparent #aaa #aaa transparent;
}
.recipe-item-row {
  display: flex;
  flex-grow: 1;
  transition: all 0.2s ease;
  border-radius: 3px;
  border: 1px solid transparent;
}
.recipe-item-row.playing {
  border-color: #5fc1c7;
}
.recipe-item-label {
  font-size: 18px;
  font-family: 'IBM Plex Mono', monospace;
  width: 25%;
  height: 40px;
  line-height: 40px;
  text-align: center;
}
.recipe-item-label:not(:first-child) {
  border-left: 1px solid #ddd;
}
.answer {
  display: none;
  height: 0;
  opacity: 0;
}
.answer--open {
  -webkit-animation-name: answer-open;
          animation-name: answer-open;
  -webkit-animation-duration: 0.6s;
          animation-duration: 0.6s;
  -webkit-animation-fill-mode: forwards;
          animation-fill-mode: forwards;
  -webkit-animation-timing-function: ease-in-out;
          animation-timing-function: ease-in-out;
  display: block;
  height: auto;
}
@-webkit-keyframes inst {
  0% {
    transform: translate(0, -50%) scale(1);
  }
  25% {
    transform: translate(0, -50%) scale(1.2);
  }
  50% {
    transform: translate(0, -50%) scale(1);
  }
  100% {
    transform: translate(0, -50%) scale(1);
  }
}
@keyframes inst {
  0% {
    transform: translate(0, -50%) scale(1);
  }
  25% {
    transform: translate(0, -50%) scale(1.2);
  }
  50% {
    transform: translate(0, -50%) scale(1);
  }
  100% {
    transform: translate(0, -50%) scale(1);
  }
}
@-webkit-keyframes annotation_0 {
  0% {
    background: transparent;
  }
  50% {
    background: #e9eaff;
  }
  95% {
    background: transparent;
  }
}
@keyframes annotation_0 {
  0% {
    background: transparent;
  }
  50% {
    background: #e9eaff;
  }
  95% {
    background: transparent;
  }
}
@-webkit-keyframes annotation_1 {
  0% {
    background: #fff;
  }
  50% {
    background: #e9eaff;
  }
  95% {
    background: #fff;
  }
}
@keyframes annotation_1 {
  0% {
    background: #fff;
  }
  50% {
    background: #e9eaff;
  }
  95% {
    background: #fff;
  }
}
@-webkit-keyframes annotation_2 {
  0% {
    background: rgba(252,255,207,0.8);
  }
  50% {
    background: #e9eaff;
  }
  95% {
    background: rgba(252,255,207,0.8);
  }
}
@keyframes annotation_2 {
  0% {
    background: rgba(252,255,207,0.8);
  }
  50% {
    background: #e9eaff;
  }
  95% {
    background: rgba(252,255,207,0.8);
  }
}
@-webkit-keyframes answer-open {
  0% {
    opacity: 0;
    margin-top: 30px;
  }
  100% {
    opacity: 1;
    margin-top: 50px;
  }
}
@keyframes answer-open {
  0% {
    opacity: 0;
    margin-top: 30px;
  }
  100% {
    opacity: 1;
    margin-top: 50px;
  }
}

/*
 * Visual Studio 2015 dark style
 * Author: Nicolas LLOBERA <nllobera@gmail.com>
 */

.hljs {
  display: block;
  overflow-x: auto;
  padding: 0.5em;
  background: #1E1E1E;
  color: #DCDCDC;
}

.hljs-keyword,
.hljs-literal,
.hljs-symbol,
.hljs-name {
  color: #569CD6;
}
.hljs-link {
  color: #569CD6;
  text-decoration: underline;
}

.hljs-built_in,
.hljs-type {
  color: #4EC9B0;
}

.hljs-number,
.hljs-class {
  color: #B8D7A3;
}

.hljs-string,
.hljs-meta-string {
  color: #D69D85;
}

.hljs-regexp,
.hljs-template-tag {
  color: #9A5334;
}

.hljs-subst,
.hljs-function,
.hljs-title,
.hljs-params,
.hljs-formula {
  color: #DCDCDC;
}

.hljs-comment,
.hljs-quote {
  color: #57A64A;
  font-style: italic;
}

.hljs-doctag {
  color: #608B4E;
}

.hljs-meta,
.hljs-meta-keyword,
.hljs-tag {
  color: #9B9B9B;
}

.hljs-variable,
.hljs-template-variable {
  color: #BD63C5;
}

.hljs-attr,
.hljs-attribute,
.hljs-builtin-name {
  color: #9CDCFE;
}

.hljs-section {
  color: gold;
}

.hljs-emphasis {
  font-style: italic;
}

.hljs-strong {
  font-weight: bold;
}

/*.hljs-code {
  font-family:'Monospace';
}*/

.hljs-bullet,
.hljs-selector-tag,
.hljs-selector-id,
.hljs-selector-class,
.hljs-selector-attr,
.hljs-selector-pseudo {
  color: #D7BA7D;
}

.hljs-addition {
  background-color: #144212;
  display: inline-block;
  width: 100%;
}

.hljs-deletion {
  background-color: #600;
  display: inline-block;
  width: 100%;
}