/* reset -------------------------- */

html, body, div, ul, ol, li, dl, dt, dd, h1, h2, h3, h4, h5, h6, pre, form, dfn, del, p, blockquote, fieldset, input, textarea, select, article, aside, details, figcaption, figure, footer, header, hgroup, nav, section, button, canvas, video {
  margin: 0;
  padding: 0;
}

h1, h2, h3, h4, h5, h6, pre, code, address, caption, cite, code, th, dfn, del {
  font-weight: normal;
  font-style: normal;
}

ul, ol {
  list-style: none;
}

fieldset, img {
  border: none;
}

caption, th {
  text-align: left;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
}

input[type="button"], input[type="submit"], input[type="reset"], button {
  cursor: pointer;
  line-height: normal;
}

button, input {
  line-height: normal;
}

input[type="hidden"], [hidden], .hidden {
  display: none;
}

textarea {
  overflow: auto;
  resize: none;
}

article, aside, details, figcaption, figure, footer, header, nav, section, .clearfix {
  display: block;
}

audio, canvas, video {
  display: inline-block;
}

a>img {
  vertical-align: bottom;
}

strong, b {
  font-weight: bold;
}

em, i {
  font-style: italic;
}

del {
  text-decoration: line-through;
}

:focus {
  outline: none;
}


/* common -------------------------- */

:root {
  --color-navy100: #002855;
  --color-navy80: rgba(0, 40, 85, .8);
  --color-navy60: rgba(0, 40, 85, .6);
  --color-navy40: rgba(0, 40, 85, .4);
  --color-navy20: rgba(0, 40, 85, .2);
  --color-yellow100: #F1C400;
  --color-white100: #FFF;
  --color-white20: rgba(255, 255, 255, .2);
  --color-white10: rgba(255, 255, 255, .1);
  --color-black100: #000;
  --color-black40: rgba(0, 0, 0, .4);
  --color-black20: rgba(0, 0, 0, .2);
  --color-black5: rgba(0, 0, 0, .05);
  --color-purple100: #3A2359;
  --font-mono: "SF Mono", 'Roboto Mono', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Noto Sans', 'Noto Sans CJK JP', monospace;
}

html {
  height: 100%;
  font-size: 62.5%;
  line-height: 0.1;
}

body {
  font-family: sans-serif;
  font-weight: 300;
  text-align: center;
  color: var(--color-navy100);
  background-color: var(--color-white100);
}

h1 {
  text-align: center;
  color: var(--color-white100);
  background-color: var(--color-navy100);
  background-image: url(../img/polopony.svg);
  background-blend-mode: exclusion;
  background-repeat: no-repeat;
  background-size: 48px;
  background-position: center top;
  min-height: 96px;
  display: flex;
  justify-content: center;
  align-items: center;
}

h1 p {
  width: 100%;
  text-align: center;
  font-size: 1.6rem;
  font-weight: 600;
}

h2, h3 {
  line-height: 1.28;
}

p {
  font-size: 1.4rem;
  line-height: 1.44;
}

main>p {
  text-align: left;
  margin: 16px;
}

p.center {
  text-align: center;
}

p.caption {
  font-size: 1.2rem;
  color: var(--color-navy60);
  text-align: left;
}


/* ボタン -------------------------- */

button {
  font-family: sans-serif;
  font-size: 1.4rem;
  font-weight: 600;
  width: calc(100% / 3 * 2);
  max-width: 320px;
  padding: 1.2rem 0.8rem;
  border: 1px solid var(--color-navy100);
}

@media all and (max-width: 321px) {
  button {
    max-width: 320px;
  }
}

button.main {
  background-color: var(--color-navy100);
  color: var(--color-white100);
}

button.sub {
  background-color: var(--color-white100);
  color: var(--color-navy100);
}

div.vertical {
  text-align: center;
}

div.vertical button {
  margin-top: 3.2rem;
}

div.horizontal {
  margin: 0 1.6rem;
  display: flex;
  flex-direction: row-reverse;
  justify-content: space-between;
}

@media all and (max-width: 321px) {
  div.horizontal {
    margin: 0 .8rem;
  }
}


div.horizontal button {
  width: 128px;
}


/* フォーム -------------------------- */

input[type=text], input[type=tel], input[type=email], input[type=number] {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 300;
  line-height: 1;
  color: var(--color-navy100);
  border: 1px solid var(--color-navy40);
  padding: 0.8rem;
  margin-top: 0.8rem;
  width: 100%;
  box-sizing: border-box;
}

input[type=radio], input[type=checkbox] {
  display: none;
}

input[type=radio]+label, input[type=checkbox]+label {
  display: inline-block;
  font-size: 1.6rem;
  color: var(--color-navy100);
  margin-top: 1.6rem;
  padding: 0.4rem 0.4rem 0.4rem 3.2rem;
}

input[type=radio]+label {
  background-image: url(../img/radio_default.svg);
  background-repeat: no-repeat;
  background-position: left center;
}

input[type=checkbox]+label {
  background-image: url(../img/checkbox_default.svg);
  background-repeat: no-repeat;
  background-position: left center;
}

input[type=radio]:checked+label {
  background-image: url(../img/radio_checked.svg);
}

input[type=checkbox]:checked+label {
  background-image: url(../img/checkbox_checked.svg);
}

input[type=button] {
  font-family: sans-serif;
  font-size: 1.4rem;
  font-weight: 600;
  padding: 1rem;
  border: 1px solid var(--color-navy100);
  background-color: var(--color-white100);
  color: var(--color-navy100);
  line-height: 1;
  box-sizing: border-box;
}

select {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-color: var(--color-white100);
  background-image: url(../img/ic_expand.svg);
  background-repeat: no-repeat;
  background-position: right 8px center;
  border: 1px solid var(--color-navy40);
  border-radius: 0;
  font-family: var(--font-mono);
  font-size: 1.6rem;
  line-height: 1;
  padding: 0.8rem;
  padding-right: 4.8rem;
  color: var(--color-navy100);
  margin-top: 0.8rem;
}

input:focus, select:focus {
  border: 1px solid var(--color-navy100);
}

input:disabled {
  color: var(--color-navy60);
  background-color: var(--color-black5);
}

select:disabled {
  color: var(--color-navy60);
  background-color: var(--color-black100);
}

input:invalid, select:invalid {
  border: 1px solid #C00;
}

input::placeholder {
  color: var(--color-black20);
}

main {
  max-width: 480px;
  margin: 0 auto;
  padding-bottom: 3.2rem;
}

.txt-main{
  margin: 1.6rem;
  font-size: 1.6rem;
  text-align: left;
}

.l-wrap{
  border-bottom: 1px solid var(--color-black20);
  margin-bottom: 2.4rem;
  border-top: 1px solid var(--color-black20);
  padding: 0 1.6rem 2.4rem 1.6rem;
  text-align: left;
  line-height: 1;
}

.l-wrap .txt-err{
  margin-left: 0;
  margin-right: 0;
}

.txt-dtl{
  font-size: 1.6rem;
  font-weight: 600;
  margin-top: .5em;
}

.txt-st{
  font-family: var(--font-mono);
  font-size: 1.8rem;
  font-weight: 300;
  color: var(--color-navy100);
  margin-top: 0.8rem;
}

.radio-wrap{
  font-size: 0;
  vertical-align: bottom;
}

.radio-wrap label{
  display: inline-block;
  margin-right: 16px;
}

.radio-wrap label:last-child{
  margin-right: 0;
}

.list-input .hdg{
  font-size: 1.6rem;
  font-weight: 600;
  margin-top: 3.2rem;
  line-height: 1.28;
}

h1 {
  text-align: center;
  color: var(--color-white100);
  background-color: var(--color-navy100);
  background-image: url(../img/polopony.svg);
  background-blend-mode: exclusion;
  background-repeat: no-repeat;
  background-size: 48px;
  background-position: center top;
  min-height: 96px;
  display: flex;
  justify-content: center;
  align-items: center;
  font-weight: bold;
}

h1 p {
  width: 100%;
  text-align: center;
  font-size: 1.6rem;
  font-weight: 600;
}

.hdg-lv1>span {
  width: 100%;
  text-align: center;
  font-size: 1.9rem;
  font-weight: 600;
}

.img-wrap{
  margin: 1.6rem;
}

@media all and (max-width: 321px) {
  .img-wrap{
    margin: 1.6rem .5em;
  }
}

.img-wrap img{
  max-width: 320px;
  height: auto;
  border: 1px solid var(--color-black20);
}

@media all and (max-width: 321px) {
  .img-wrap img{
    max-width: 300px;
  }
}

.list-attr{
  text-align: left;
  margin: 1.6rem 1.6rem 0;
  list-style: none;
}

.list-attr li{
  display: flex;
  line-height: 1.5;
  font-size: 1.6rem;
}

.list-attr li::before{
  margin-right: 0.3em;
  white-space: nowrap;
  content: attr(data-txt);
}

.list-attr .list-attr{
  margin: 0;
}

.txt-main + .list-attr{
  margin-top: 1.2rem;
}

.hdg-lv2{
  font-weight: bold;
  text-align: left;
  font-size: 1.7rem;
  font-weight: 600;
  margin: 3.2rem 1.6rem 1.6rem;
  line-height: 1.4;
}
.hdg-lv2.attr{
  display: flex;
}
.hdg-lv2.attr::before{
  margin-right: 0.3em;
  white-space: nowrap;
  content: attr(data-txt);
}

.hdg-lv3{
  font-weight: bold;
  text-align: left;
  font-size: 1.6rem;
  font-weight: 600;
  margin: 2.8rem 1.6rem 1.6rem;
  line-height: 1.28;
}

.btn-accent{
  background-color: var(--color-white100);
  color: var(--color-navy100);
}

/* ADD -------------------------- */
.hdg-lv2.acc-btn{
  font-weight: bold;
  text-align: left;
  margin: 3.2rem 0 0;
  padding: 1.6rem 3.5rem 1.6rem 1.6rem;
  border-bottom: 1px solid var(--color-navy100);
  border-top: 1px solid var(--color-navy100);
  cursor: pointer;
  position: relative;
}

.acc-wrap + .acc-wrap .hdg-lv2.acc-btn:first-child{
  margin: 0;
  border-top: none;
}
.hdg-lv2.acc-btn::after{
  content: "";
  display: block;
  width: 10px;
  height: 10px;
  border-bottom: 2px solid var(--color-navy100);
  border-right: 2px solid var(--color-navy100);
  position: absolute;
  right: 1.5rem;
  top: 50%;
  margin-top: -8px;
  transform: rotate(45deg);
  transition: all .3s;
}
.hdg-lv2.acc-btn.accordionActive::after{
  top: 50%;
  margin-top: -3px;
  transform: rotate(-135deg);
}

.acc-cnt{
  display: none;
}
.acc-cnt.accordionActive{
  display: block;
}
.acc-cnt > .inner > section{
  padding-top: 2.8rem;
}
.acc-cnt > .inner > section .hdg-lv3{
  margin-top: 0;
}