/* 案件共通：色・書体・文字サイズ・余白のトークン */
:where(.margin-site) {
  --color-black: #000;
  --color-white: #fff;
  --color-navy: #0a284e;
  --color-blue: #1f84d6;
  --color-blue-dark: #155c96;
  --color-yellow: #ffbd00;
  --color-orange: #ff7200;
  --color-gold: #9f824f;
  --color-gold-light: #ca9f53;
  --color-gray: #78828c;
  --color-gray-dark: #666;
  --color-gray-hover: #ccc;
  --color-border: #dedede;
  --color-surface: #f5f5f5;
  --color-cream: #f6f4ef;
  --text-color: var(--color-black);
  --text-muted: var(--color-gray-dark);
  --link-color: var(--color-blue);
  --section-accent: var(--color-gold);
  --font-body: "Noto Sans JP", sans-serif;
  --font-heading: "Noto Serif JP", serif;
  --font-english: "EB Garamond", serif;
  --weight-regular: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;

  /* 文字サイズ・余白・寸法のトークン（1rem = 10px） */
  --text-xs: 1.2rem;
  --text-sm: 1.4rem;
  --text-base: 1.6rem;
  --text-md: 1.8rem;
  --text-lg: 2rem;
  --text-xl: 2.2rem;
  --text-2xl: 2.4rem;
  --text-3xl: 2.8rem;
  --text-4xl: 3.6rem;
  --text-page: 4rem;
  --line-compact: 1.2;
  --line-heading: 1.5;
  --line-body: 1.75;
  --space-1: 0.4rem;
  --space-2: 0.8rem;
  --space-3: 1.6rem;
  --space-4: 2.4rem;
  --space-5: 3.2rem;
  --space-6: 4rem;
  --space-7: 4.8rem;
  --space-8: 6.4rem;
  --space-9: 9.6rem;
  --space-size-1: 0.1rem;
  --space-size-3: 0.3rem;
  --space-size-5: 0.5rem;
  --space-size-6: 0.6rem;
  --space-size-7: 0.7rem;
  --space-size-10: 1rem;
  --space-size-12: 1.2rem;
  --space-size-13: 1.3rem;
  --space-size-14: 1.4rem;
  --space-size-15: 1.5rem;
  --space-size-17: 1.7rem;
  --space-size-18: 1.8rem;
  --space-size-19: 1.9rem;
  --space-size-22: 2.2rem;
  --space-size-20: 2rem;
  --space-size-26: 2.6rem;
  --space-size-28: 2.8rem;
  --space-size-30: 3rem;
  --space-size-34: 3.4rem;
  --space-size-38: 3.8rem;
  --space-size-44: 4.4rem;
  --space-size-52: 5.2rem;
  --space-size-56: 5.6rem;
  --space-size-68: 6.8rem;
  --space-size-72: 7.2rem;
  --space-size-80: 8rem;
  --space-size-88: 8.8rem;
  --space-size-104: 10.4rem;
  --space-size-180: 18rem;
  --space-size-285: 28.5rem;
  --content-width: 120rem;
  --reading-width: 99.2rem;
  --page-gutter: var(--space-4);
  --radius-pill: 10rem;
  --shadow-button: 0 0 3rem rgb(0 0 0 / 25%);
  --shadow-card: 3rem 3rem 3rem rgb(0 0 0 / 5%);
  --backdrop-color: rgb(0 0 0 / 80%);
  --motion-duration: 200ms;
  --motion-easing: ease-out;

  color: var(--text-color);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--weight-regular);
  line-height: var(--line-body);
  overflow-wrap: anywhere;
}

/* ページ全体：bodyの高さ */
body:has(> .site-header) {
  min-block-size: 100%;
  block-size: auto;
}

/* ページ全体：アンカー移動 */
html:has(.site-header) {
  scroll-padding-top: var(--site-header-height, 8.8rem);

  @media (prefers-reduced-motion: no-preference) {
    scroll-behavior: smooth;
  }
}

html.has-site-dialog {
  overflow: hidden;
}

:where(.margin-site) :is(a, button, summary):focus-visible {
  outline: 3px solid var(--color-black);
  outline-offset: 4px;
  box-shadow: 0 0 0 4px var(--color-white);
}

:where(.margin-site) .visually-hidden {
  position: absolute;
  inline-size: 0.1rem;
  block-size: 0.1rem;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

:where(.margin-site) .inner {
  inline-size: min(100% - var(--page-gutter) * 2, var(--content-width));
  margin-inline: auto;
}

:where(.margin-site) .section-area {
  padding-block: var(--space-9);

  &.-cream {
    background: var(--color-cream);
  }

  &.-dark {
    --text-color: var(--color-white);
    --section-accent: var(--color-gold-light);

    color: var(--text-color);
    background: var(--color-navy);
  }
}

/* 共通の英字・日本語見出し */

:where(.margin-site) .section-title {
  margin-block-end: var(--space-5);
  text-align: center;

  & .english {
    display: block;
    margin-block-end: var(--space-2);
    color: var(--section-accent);
    font-family: var(--font-english);
    font-size: var(--text-lg);
    font-weight: var(--weight-medium);
    line-height: 1;
  }

  & .title {
    color: inherit;
    font-family: var(--font-heading);
    font-size: var(--text-4xl);
    font-weight: var(--weight-semibold);
    line-height: var(--line-heading);
  }

  &::after {
    display: block;
    inline-size: 4rem;
    block-size: 0.2rem;
    margin: var(--space-4) auto 0;
    background: var(--color-gold);
    content: "";
  }
}

:where(.margin-site) .page-heading {
  padding: var(--space-9) var(--page-gutter);
  color: var(--color-white);
  background: var(--color-navy);
  text-align: center;

  & .title {
    font-family: var(--font-heading);
    font-size: var(--text-page);
    font-weight: var(--weight-semibold);
    line-height: var(--line-heading);
  }
}

:where(.margin-site) .text-block {
  max-inline-size: var(--reading-width);
  margin-inline: auto;

  & > * + * {
    margin-block-start: var(--space-4);
  }

  & .title {
    font-size: var(--text-2xl);
    font-weight: var(--weight-semibold);
  }
}

:where(.margin-site) .note-list {
  display: grid;
  gap: var(--space-1);
  list-style: none;
  color: var(--text-muted);
  font-size: var(--text-xs);
  line-height: var(--line-heading);

  & li {
    display: flex;
    gap: var(--space-2);
  }

  & .marker {
    flex: none;
  }
}

/* 共通の申込みボタン */

:where(.margin-site) .button-primary {
  --button-background: var(--color-yellow);
  --button-text: var(--color-black);
  --button-shade: 0%;

  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  max-inline-size: 100%;
  min-block-size: 5.6rem;
  padding: var(--space-3) var(--space-5);
  border: 0;
  border-radius: var(--radius-pill);
  color: var(--button-text);
  background:
    linear-gradient(
      rgb(0 0 0 / var(--button-shade)),
      rgb(0 0 0 / var(--button-shade))
    ),
    var(--button-background);
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  line-height: var(--line-compact);
  text-align: center;
  text-decoration: none;
  cursor: pointer;
}

/* 申込みボタン内のラベル・アイコン */
:where(.margin-site) .button-primary > span:has(> .icon) {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-inline-size: 0;
  max-inline-size: 100%;
}

:where(.margin-site) .button-primary.-large {
  inline-size: min(100%, 44.8rem);
  min-block-size: 8rem;
  padding: var(--space-size-20) var(--space-5);
  font-size: var(--text-xl);
  line-height: var(--line-body);
}

:where(.margin-site) .button-primary.-account {
  --button-background: var(--color-orange);
  --button-text: var(--color-white);
}

:where(.margin-site) .button-primary.-anchor {
  --button-background: var(--color-blue);
  --button-text: var(--color-white);

  font-size: var(--text-sm);
}

:where(.margin-site) .button-primary.-close {
  --button-background: var(--color-gray);
  --button-text: var(--color-white);

  font-size: var(--text-sm);
}

:where(.margin-site) .button-callout {
  position: relative;
  display: inline-grid;
  justify-items: center;
  inline-size: min(100%, 44.8rem);

  & .label {
    position: absolute;
    inset-block-start: calc(-1 * var(--space-size-12));
    z-index: 1;
    max-inline-size: calc(100% - 3.2rem);
    padding: var(--space-size-3) var(--space-size-12);
    border-radius: var(--radius-pill);
    color: var(--color-black);
    background: var(--color-yellow);
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
    line-height: var(--line-heading);
  }

  & .label::after {
    position: absolute;
    inset-block-start: 100%;
    inset-inline-start: calc(50% - var(--space-size-5));
    border-block-start: 6px solid var(--color-yellow);
    border-inline: 5px solid transparent;
    content: "";
  }
}

:where(.margin-site) .icon {
  display: inline-flex;
  flex: none;
  inline-size: 1.2rem;
  block-size: 1.2rem;
  background: currentcolor;
  mask:
    url("/image/feature/margin-trade/icon-arrow.svg") center / contain no-repeat;

  &.-down {
    rotate: 90deg;
  }

  &.-external {
    mask-image: url("/image/feature/margin-trade/icon-external.svg");
  }

  &.-close {
    inline-size: 1.6rem;
    block-size: 1.6rem;
    mask-image: url("/image/feature/margin-trade/icon-close.svg");
  }
}

:where(.margin-site) .round-icon {
  --round-icon-size: 2rem;

  display: inline-flex;
  flex: none;
  align-items: center;
  justify-content: center;
  inline-size: var(--round-icon-size);
  block-size: var(--round-icon-size);
  border-radius: 50%;
  color: var(--color-white);
  background: var(--link-color);
}

:where(.margin-site) .text-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--link-color);
  font-weight: var(--weight-semibold);
  text-decoration: underline;
  text-underline-offset: 3px;

  & .round-icon {
    align-self: flex-start;
    margin-block-start: max(0rem, calc((1lh - var(--round-icon-size)) / 2));
  }
}

:where(.margin-site) .card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);

  &.-three {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

:where(.margin-site) .navigation-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-6);
  border-inline-start: 8px solid var(--link-color);
  color: var(--text-muted);
  background: var(--color-white);
  box-shadow: var(--shadow-card);
  text-decoration: none;

  & .title {
    color: var(--link-color);
    font-size: var(--text-2xl);
    font-weight: var(--weight-semibold);
    line-height: var(--line-heading);
  }

  & .lead {
    margin-block-start: var(--space-2);
    line-height: var(--line-heading);
  }
}

:where(.margin-site) .navigation-card:focus-visible {
  outline-color: var(--color-white);
}

/* 共通の紹介カード */

:where(.margin-site) .feature-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-6);
  border: 1px solid var(--color-border);
  color: var(--color-black);
  background: var(--color-white);
  text-align: center;

  & .title {
    font-size: var(--text-lg);
    font-weight: var(--weight-semibold);
    line-height: var(--line-heading);
  }

  & .button-primary {
    margin-block-start: auto;
  }
}

:where(.margin-site) .content-panel {
  color: var(--color-black);
  background: var(--color-surface);

  & > .title {
    padding: var(--space-size-14) var(--space-4);
    color: var(--color-white);
    background: var(--color-navy);
    font-size: var(--text-2xl);
    font-weight: var(--weight-semibold);
    line-height: var(--line-heading);
    text-align: center;
  }

  & > .content {
    padding: var(--space-8) var(--space-5);
  }
}

:where(.margin-site) .media-block {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: center;
  gap: var(--space-7);

  & img {
    display: block;
    inline-size: 100%;
    block-size: auto;
  }
}

:where(.margin-site) .comparison-table {
  table-layout: fixed;
  color: var(--color-black);
  font-size: var(--text-sm);
  line-height: var(--line-heading);

  & caption {
    margin-block-end: var(--space-3);
    font-size: var(--text-lg);
    font-weight: var(--weight-semibold);
    text-align: start;
  }

  & :is(th, td) {
    padding: var(--space-3);
    border-block-end: 1px solid var(--color-border);
    background: var(--color-surface);
    vertical-align: middle;
  }

  & th {
    font-weight: var(--weight-semibold);
  }

  & thead th {
    color: var(--color-white);
    background: var(--color-gray);
  }

  & thead th.-credit {
    background: var(--color-gold);
  }

  & tbody th {
    background: var(--color-white);
    text-align: start;
  }
}

:where(.margin-site) .disclosure-list {
  display: grid;
  gap: var(--space-2);
  max-inline-size: var(--reading-width);
  margin-inline: auto;
}

/* FAQ・用語集の開閉項目 */

:where(.margin-site) .disclosure {
  color: var(--color-black);
  background: var(--color-white);

  &.-glossary {
    background: var(--color-surface);
  }

  & > summary {
    display: flex;
    align-items: baseline;
    gap: var(--space-5);
    padding: var(--space-5) var(--space-6) var(--space-5) var(--space-4);
    list-style: none;
    font-size: var(--text-2xl);
    font-weight: var(--weight-semibold);
    line-height: var(--line-heading);
    cursor: pointer;
  }

  & > summary::-webkit-details-marker {
    display: none;
  }

  & .question {
    flex: none;
    color: var(--color-gold);
    font-family: var(--font-english);
    font-weight: var(--weight-medium);
    line-height: 1;
  }

  & > summary > .round-icon {
    align-self: center;
    margin-inline-start: auto;
  }

  & > summary > .round-icon::before {
    inline-size: 1.2rem;
    block-size: 1.2rem;
    background: currentcolor;
    mask:
      url("/image/feature/margin-trade/icon-plus.svg") center / contain
      no-repeat;
    content: "";
  }

  &[open] > summary > .round-icon::before {
    block-size: 0.2rem;
    mask: none;
  }

  & .answer {
    padding: 0 var(--space-size-104) var(--space-6);
  }

  & .answer > * + * {
    margin-block-start: var(--space-4);
  }

  &.is-animating {
    overflow: clip;
  }
}

/* 共通ナビ：項目と目次 */
:where(.margin-site) .site-navigation {
  & > ul {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    padding: var(--space-2);
    border-radius: var(--radius-pill);
    list-style: none;
    color: var(--color-black);
    background: var(--color-white);
  }

  & :where(a, summary) {
    display: block;
    color: inherit;
    font-size: var(--text-sm);
    line-height: var(--line-compact);
    text-decoration: none;
  }

  & > ul > li > a,
  & summary {
    padding: var(--space-size-12) var(--space-3);
    border-radius: var(--radius-pill);
    font-weight: var(--weight-semibold);
  }

  & [aria-current="page"] {
    color: var(--color-white);
    background: var(--color-gray-dark);
  }

  & summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-1);
    list-style: none;
    cursor: pointer;
  }

  & summary::-webkit-details-marker {
    display: none;
  }

  & summary::after {
    flex: none;
    inline-size: 0.8rem;
    block-size: 0.7rem;
    background: currentcolor;
    clip-path: polygon(0 0, 100% 0, 50% 100%);
    content: "";
  }

  & details[open] > summary::after {
    transform: rotate(180deg);
  }

  & .navigation-links {
    display: grid;
    gap: var(--space-3);
    margin: 0;
    padding: var(--space-5);
    list-style: none;
    color: var(--color-black);
    background: var(--color-white);
  }

  & :where(.navigation-links a) {
    padding-inline-start: var(--space-3);
    font-weight: 400;
  }

  & :where(.navigation-links > li:first-child a) {
    padding-inline-start: 0;
    font-weight: var(--weight-semibold);
  }
}

.site-header {
  position: relative;
  z-index: 10;
  inset-block-start: 0;
  background: var(--color-white);
}

@media (width >= 1200px) {
  .site-header .site-navigation > ul {
    box-shadow: var(--shadow-button);
  }
}

/* 共通ヘッダー：追従表示 */
.site-header.is-enhanced {
  position: sticky;
}

.site-header > .inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  inline-size: auto;
  padding: var(--space-3) var(--space-4);
}

.site-header > .inner::before {
  flex: none;
  inline-size: 15.7rem;
  block-size: 4.8rem;
  content: "";
}

/* 共通ロゴ：ページ上部の配置 */
.site-brand {
  position: absolute;
  z-index: 11;
  inset-block-start: calc(
    (var(--site-header-height, var(--space-size-88)) - var(--space-7)) /
    2
  );
  inset-inline-start: var(--space-4);
}

@media (width >= 1200px) {
  .site-brand.-light svg {
    fill: var(--color-white);
  }
}

.site-brand .link {
  display: block;
  inline-size: fit-content;
}

.site-brand svg {
  fill: var(--color-black);
  display: block;
  inline-size: 15.7rem;
  block-size: 4.8rem;
}

/* ヘッダーとナビゲーション */

:where(.margin-site).site-header .button-primary {
  box-shadow: var(--shadow-button);
}

.site-header .menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  min-inline-size: 4.4rem;
  min-block-size: 4.4rem;
  color: var(--color-navy);
}

.site-header .menu-toggle .lines {
  display: grid;
  gap: var(--space-size-6);
  inline-size: 2.8rem;
}

.site-header .menu-toggle .lines::before,
.site-header .menu-toggle .lines::after {
  block-size: 0.2rem;
  background: currentcolor;
  content: "";
}

.site-dialog {
  inline-size: min(131.2rem, 100%);
  max-inline-size: none;
  max-block-size: calc(100dvh - 4.8rem);
  margin: auto;
  padding: 0 var(--space-size-56);
  border: 0;
  color: var(--color-black);
  background: transparent;
  overflow: visible;
}

.site-dialog .dialog-surface {
  max-block-size: calc(100dvh - 4.8rem);
  padding: var(--space-7) var(--space-6) var(--space-6);
  background: var(--color-white);
  overflow: auto;
  overscroll-behavior: contain;
}

.site-dialog::backdrop {
  background: var(--backdrop-color);
}

.site-dialog[open],
.site-dialog[open]::backdrop {
  animation: dialog-enter var(--motion-duration) var(--motion-easing);
}

.site-dialog.is-closing,
.site-dialog.is-closing::backdrop {
  animation: dialog-leave var(--motion-duration) var(--motion-easing) both;
}

@keyframes dialog-enter {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes dialog-leave {
  from {
    opacity: 1;
  }

  to {
    opacity: 0;
  }
}

.site-dialog .dialog-close {
  position: absolute;
  inset-block-start: 0;
  inset-inline-end: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-inline-size: 4.4rem;
  min-block-size: 4.4rem;
  color: var(--color-white);
}

.site-dialog .dialog-close .icon {
  inline-size: 4rem;
  block-size: 4rem;
}

.site-dialog .dialog-close .label {
  font-size: var(--text-sm);
}

.site-dialog .dialog-actions {
  margin-block-start: var(--space-5);
  text-align: center;
}

.site-dialog .text-block {
  text-align: center;
}

/* 口座保有状況別の申込み案内 */

:where(.margin-site) .apply-options {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-7);
  margin-block-start: var(--space-6);
  text-align: center;

  & > .option + .option {
    padding-inline-start: var(--space-7);
    border-inline-start: 1px solid var(--color-border);
  }
}

/* 申込み案内：口座保有状況の見出し・下線 */
:where(.margin-site) .apply-options .title {
  inline-size: fit-content;
  max-inline-size: 100%;
  margin-inline: auto;
  margin-block-end: var(--space-5);
  border-block-end: 2px solid currentcolor;
  font-size: var(--text-xl);
  font-weight: var(--weight-semibold);
}

:where(.margin-site) .apply-options .note {
  margin-block-start: var(--space-3);
  color: var(--text-muted);
  font-size: var(--text-xs);
}

.site-dialog.-menu {
  inset-block: 0 auto;
  inline-size: 100%;
  max-block-size: 100dvh;
  padding: var(--space-size-56) 0 0;
}

.site-dialog.-menu .dialog-surface {
  padding: 0 0 var(--space-6);
}

.site-dialog.-menu .dialog-close {
  inset-inline-end: 0;
  inline-size: 5.6rem;
  block-size: 5.6rem;
  color: var(--color-blue);
  background: var(--color-white);
}

.site-dialog.-menu .dialog-close .icon {
  position: relative;
  inline-size: 2.8rem;
  block-size: 2.8rem;
  background: none;
  mask: none;
}

.site-dialog.-menu .dialog-close .icon::before,
.site-dialog.-menu .dialog-close .icon::after {
  position: absolute;
  inset: 0;
  block-size: 2px;
  margin: auto;
  background: currentcolor;
  transform: rotate(45deg);
  content: "";
}

.site-dialog.-menu .dialog-close .icon::after {
  transform: rotate(-45deg);
}

/* 案件リンク：マウス操作時のフォーカス */
:where(.margin-site) a:focus:not(:focus-visible) {
  outline: none;
}

.site-dialog.-menu .site-navigation > ul {
  display: block;
  padding: 0;
  border-block-start: 1px solid var(--color-border);
  border-radius: 0;
}

.site-dialog.-menu .site-navigation > ul > li > a,
.site-dialog.-menu .site-navigation summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-block-end: 1px solid var(--color-border);
  border-radius: 0;
  font-size: var(--text-md);
  line-height: var(--line-heading);
}

.site-dialog.-menu
  .site-navigation
  > ul
  > li
  > a:where(:not([aria-current="page"])),
.site-dialog.-menu .site-navigation summary:where(:not([aria-current="page"])) {
  color: var(--color-black);
  background: var(--color-white);
}

.site-dialog.-menu .dialog-actions {
  margin-block-start: var(--space-3);
}

.site-dialog.-menu .button-primary.-close {
  min-block-size: 4rem;
  padding: var(--space-2) var(--space-size-44);
}

.site-dialog.-menu .site-navigation > ul > li > a::after {
  flex: none;
  inline-size: 2rem;
  block-size: 2rem;
  border: 4px solid var(--color-blue);
  border-radius: 50%;
  background:
    var(--color-blue) url("/image/feature/margin-trade/icon-arrow.svg") center /
    contain no-repeat;
  content: "";
}

@media (hover: hover) {
  :where(.margin-site) a:not([class], :where(.site-navigation *)):hover {
    --link-color: var(--color-blue-dark);

    color: var(--color-blue-dark);
  }

  :where(.margin-site) .button-primary:hover {
    --button-shade: 30%;
  }

  :where(.margin-site) .navigation-card:hover,
  :where(.margin-site) .text-link:hover {
    --link-color: var(--color-blue-dark);
  }

  :where(.margin-site) .disclosure > summary:hover .label {
    color: var(--color-gray);
  }
}

@media (width < 1200px) {
  :where(.margin-site) .apply-options {
    grid-template-columns: minmax(0, 1fr);

    & > .option + .option {
      padding-block-start: var(--space-5);
      padding-inline-start: 0;
      border-block-start: 1px solid var(--color-border);
      border-inline-start: 0;
    }
  }

  .site-header > .inner {
    gap: var(--space-2);
    padding: var(--space-size-6) var(--space-size-15);
  }

  .site-header > .inner::before {
    inline-size: 10.5rem;
    block-size: 3.2rem;
  }

  .site-brand {
    inset-block-start: calc(
      (var(--site-header-height, var(--space-size-56)) - var(--space-5)) /
      2
    );
    inset-inline-start: var(--space-size-15);
  }

  .site-brand svg {
    inline-size: 10.5rem;
    block-size: 3.2rem;
  }

  :where(.margin-site).site-header .button-primary {
    min-block-size: 3.6rem;
    margin-inline-start: auto;
    padding: var(--space-2) var(--space-size-12);
    font-size: var(--text-xs);
  }

  .site-header .site-navigation {
    order: 3;
    inline-size: 100%;
  }

  .site-header.is-enhanced .site-navigation {
    display: none;
  }

  .site-header.is-enhanced .menu-toggle {
    display: flex;
  }
}

/* SP・タブレット：JSの読み込み前後のヘッダーナビゲーション */
@media (width < 1200px) and (scripting: enabled) {
  .site-header > .inner {
    flex-wrap: nowrap;
  }

  .site-header .site-navigation {
    display: none;
  }

  .site-header .menu-toggle {
    display: flex;
  }
}

@media (width < 768px) {
  /* SPロゴ：ヘッダーの追従時 */
  .site-brand:has(+ .site-header.is-enhanced) {
    position: fixed;
  }

  :where(.margin-site) {
    --page-gutter: 1.5rem;
  }

  :where(.margin-site) .section-area {
    padding-block: var(--space-8);
  }

  :where(.margin-site) .section-title {
    & .english {
      font-size: var(--text-base);
    }

    & .title {
      font-size: var(--text-2xl);
    }
  }

  :where(.margin-site) .page-heading .title {
    font-size: var(--text-3xl);
  }

  :where(.margin-site) .card-grid,
  :where(.margin-site) .card-grid.-three,
  :where(.margin-site) .media-block,
  :where(.margin-site) .apply-options {
    grid-template-columns: minmax(0, 1fr);
  }

  :where(.margin-site) .navigation-card {
    gap: var(--space-3);
    padding: var(--space-4) var(--space-4) var(--space-4) var(--space-size-26);
    border-inline-start-width: 6px;

    & .title {
      font-size: var(--text-md);
    }

    & .lead {
      font-size: var(--text-sm);
    }
  }

  :where(.margin-site) .feature-card {
    padding: var(--space-5) var(--space-size-20);
  }

  :where(.margin-site) .content-panel > .content {
    padding: var(--space-5) var(--space-size-20);
  }

  :where(.margin-site) .comparison-table :is(th, td) {
    padding: var(--space-3) var(--space-2);
  }

  :where(.margin-site) .disclosure {
    & > summary {
      gap: var(--space-3);
      padding: var(--space-4) var(--space-size-20);
      font-size: var(--text-base);
    }

    & .answer {
      padding: 0 var(--space-size-20) var(--space-5) var(--space-size-56);
      font-size: var(--text-sm);
    }

    &.-glossary .answer {
      padding-inline-start: var(--space-size-20);
    }
  }

  .site-dialog {
    inline-size: 100%;
    max-block-size: 100dvh;
    padding: var(--space-size-56) 0 0;
  }

  .site-dialog .dialog-surface {
    max-block-size: calc(100dvh - 5.6rem);
    padding: var(--space-6) var(--space-size-20);
  }

  .site-dialog .dialog-close {
    inset-inline-end: var(--space-2);
  }

  .site-dialog .text-block {
    text-align: start;
  }

  :where(.margin-site) .apply-options {
    & > .option + .option {
      padding-block-start: var(--space-5);
      padding-inline-start: 0;
      border-block-start: 1px solid var(--color-border);
      border-inline-start: 0;
    }

    & .title {
      font-size: var(--text-md);
    }
  }

  :where(.margin-site) .button-primary.-large {
    font-size: var(--text-lg);
    line-height: 1.25;
  }
}

/* 申込み案内：左右の選択肢・区切り線 */
@media (width >= 1200px) {
  .site-dialog .apply-options {
    gap: var(--space-size-80);
  }

  .site-dialog .apply-options > .option + .option {
    position: relative;
    padding-inline-start: 0;
    border-inline-start: 0;
  }

  .site-dialog .apply-options > .option + .option::before {
    position: absolute;
    inset-block: 0;
    inset-inline-start: calc(-1 * var(--space-6));
    border-inline-start: 1px solid var(--color-border);
    content: "";
  }

  .site-dialog .apply-options .note {
    margin-block-start: var(--space-2);
    line-height: 1.5;
  }

  .site-dialog .dialog-actions .button-primary {
    padding-inline: var(--space-size-44);
  }
}

@media (width < 768px) {
  .site-dialog .dialog-break {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  :where(.margin-site) {
    --motion-duration: 0ms;
  }
}

/* 本文リンク末尾の外部リンクアイコン */
:where(.margin-site) .text-link:has(> .icon.-external) {
  display: inline;
}

:where(.margin-site) .text-link .icon.-external {
  display: inline-block;
  margin-inline-start: var(--space-2);
  vertical-align: -0.1em;
}

@media (width < 768px) {
  .site-header > .inner {
    padding: 0 0 0 var(--space-size-15);
  }

  :where(.margin-site).site-header .button-primary {
    min-block-size: var(--space-5);
    box-shadow: none;
    padding-block: var(--space-2);
    line-height: 1.2;
    gap: var(--space-1);
  }

  .site-header .menu-toggle {
    min-inline-size: var(--space-size-56);
    min-block-size: var(--space-size-56);
    color: var(--link-color);
  }
}

@media (width < 1200px) {
  .site-header .menu-toggle {
    color: var(--link-color);
  }

  .site-header .menu-toggle .lines {
    display: block;
    block-size: 1.6rem;
    background: linear-gradient(
      currentcolor 0 2px,
      transparent 2px calc(50% - 1px),
      currentcolor calc(50% - 1px) calc(50% + 1px),
      transparent calc(50% + 1px) calc(100% - 2px),
      currentcolor calc(100% - 2px)
    );
  }

  .site-header .menu-toggle .lines::before,
  .site-header .menu-toggle .lines::after {
    content: none;
  }
}

.site-dialog.-apply .dialog-action-break {
  display: none;
}

.site-dialog.-apply .button-primary.-large > span,
.site-dialog.-apply .last-line {
  display: inline-flex;
  align-items: center;
}

.site-dialog.-apply .last-line {
  gap: var(--space-2);
}

@media (width < 768px) {
  .site-dialog.-apply {
    inset-block: 0 auto;
    max-block-size: calc(100dvh - var(--space-6));
    padding: calc(var(--space-size-56) + var(--space-size-1))
      var(--space-size-15) 0;
  }

  .site-dialog.-apply .dialog-surface {
    max-block-size: calc(
      100dvh -
      var(--space-size-56) -
      var(--space-size-1) -
      var(--space-6)
    );
    padding: calc(var(--space-6) + var(--space-size-10)) var(--space-size-20)
      var(--space-6);
  }

  .site-dialog.-apply .section-title {
    margin-block-end: var(--space-4);
  }

  .site-dialog.-apply .section-title .english {
    color: var(--color-gold-light);
  }

  .site-dialog.-apply .section-title::after {
    margin-block-start: var(--space-3);
  }

  .site-dialog.-apply .text-block {
    font-size: var(--text-sm);
    line-height: 1.75;
  }

  .site-dialog.-apply .dialog-break,
  .site-dialog.-apply .dialog-action-break {
    display: initial;
  }

  .site-dialog.-apply .apply-options {
    gap: var(--space-4);
    margin-block-start: var(--space-6);
  }

  .site-dialog.-apply .apply-options .title {
    margin-block-end: var(--space-4);
    font-size: var(--text-base);
    line-height: 1.5;
  }

  .site-dialog.-apply .apply-options > .option + .option {
    padding-block-start: var(--space-4);
  }

  .site-dialog.-apply .apply-options .note {
    margin-block-start: var(--space-3);
    line-height: 1.5;
  }

  .site-dialog.-apply .button-primary.-large {
    padding: var(--space-size-15) var(--space-2);
    font-size: var(--text-lg);
    line-height: 1.25;
  }

  .site-dialog.-apply .button-primary.-large > span {
    display: block;
  }

  .site-dialog.-apply .button-callout {
    margin-block-start: var(--space-size-20);
  }

  .site-dialog.-apply .button-callout .label {
    inset-block-start: calc(-1 * var(--space-size-18));
  }

  .site-dialog.-apply .dialog-close {
    inset-block-start: var(--space-size-15);
    inset-inline-end: var(--space-size-15);
    flex-direction: row;
    gap: var(--space-2);
  }

  .site-dialog.-apply .dialog-close .icon {
    inline-size: var(--space-3);
    block-size: var(--space-3);
  }

  .site-dialog.-apply .dialog-close .label {
    font-weight: var(--weight-regular);
    line-height: 1.75;
  }

  .site-dialog.-apply .dialog-actions {
    margin-block-start: var(--space-6);
  }

  .site-dialog.-apply .dialog-actions .button-primary {
    min-block-size: var(--space-6);
    padding: var(--space-2) var(--space-size-44);
    font-size: var(--text-sm);
    line-height: 1.2;
  }
}

/* 申込み案内の注意文・繰り返し取引の図 */
:where(.margin-site) .apply-risk-note {
  margin-block-start: var(--space-6);
  font-size: var(--text-xs);
  line-height: 1.5;
  text-align: start;
}

:where(.margin-site)
  :where(.apply-area, .merit-apply, .risk-apply, .trade-apply, .qa-apply)
  .apply-risk-note {
  margin-block-start: var(--space-3);
  color: rgb(255 255 255 / 50%);
}

.site-dialog .apply-risk-note {
  color: var(--text-muted);
}

:where(.margin-site) .feature-card > .repeat-image {
  inline-size: min(100%, 30.9rem);
  block-size: auto;
}

/* 共通ナビ：PCの展開パネル */
@media (width >= 1200px) {
  .site-header::before {
    position: fixed;
    z-index: 0;
    inset: 0;
    background: rgb(0 0 0 / 20%);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--motion-duration) var(--motion-easing);
    content: "";
  }

  .site-header:has(.navigation-group[open])::before {
    opacity: 1;
    pointer-events: auto;
  }

  .site-header .site-navigation {
    position: relative;
    z-index: 1;
  }

  .site-header .navigation-group {
    position: relative;
  }

  .site-header .navigation-group[open] > summary {
    color: var(--color-black);
    background: #ccc;
  }

  .site-header .navigation-links {
    position: absolute;
    inset-block-start: calc(100% + var(--space-4));
    inset-inline-start: calc(50% - 15.7rem);
    inline-size: max-content;
    min-inline-size: 31.4rem;
    max-inline-size: min(44rem, 90vw);
    max-block-size: calc(
      100dvh -
      var(--site-header-height, var(--space-size-88)) -
      var(--space-4)
    );
    overflow: auto;
  }

  .site-header .navigation-group > summary::before {
    position: absolute;
    inset-block-start: calc(100% + var(--space-3));
    inset-inline-start: calc(50% - var(--space-1));
    inline-size: 0.8rem;
    block-size: 0.8rem;
    background: var(--color-white);
    clip-path: polygon(50% 0, 100% 100%, 0 100%);
    opacity: 0;
    transition: opacity var(--motion-duration) var(--motion-easing);
    content: "";
  }

  .site-header .navigation-group[open] > summary::before {
    opacity: 1;
  }
}

/* 共通ナビ：CSSによる展開パネルのフェード */
@supports selector(::details-content) {
  @media (width >= 1200px) {
    .site-header .navigation-group::details-content {
      opacity: 0;
      transition:
        opacity var(--motion-duration) var(--motion-easing),
        content-visibility var(--motion-duration);
      transition-behavior: allow-discrete;
    }

    .site-header .navigation-group[open]::details-content {
      opacity: 1;
    }

    @starting-style {
      .site-header .navigation-group[open]::details-content {
        opacity: 0;
      }
    }
  }
}

/* 共通ナビ：SPの展開リスト */
.site-dialog.-menu .navigation-group {
  border-block-end: 1px solid var(--color-border);
}

.site-dialog.-menu .navigation-group > summary {
  border-block-end: 0;
}

.site-dialog.-menu
  .navigation-group
  > summary:where(:not([aria-current="page"]))::after {
  background: var(--color-blue);
}

/* 共通ナビ：SPの内容に応じた高さの開閉 */
@supports (interpolate-size: allow-keywords) and selector(::details-content) {
  .site-dialog.-menu .navigation-group {
    interpolate-size: allow-keywords;
  }

  .site-dialog.-menu .navigation-group::details-content {
    block-size: 0;
    overflow: clip;
    transition:
      block-size var(--motion-duration) var(--motion-easing),
      content-visibility var(--motion-duration);
    transition-behavior: allow-discrete;
  }

  .site-dialog.-menu .navigation-group[open]::details-content {
    block-size: auto;
  }
}

.site-dialog.-menu .navigation-links {
  gap: var(--space-3);
  padding: var(--space-1) var(--space-4) var(--space-5);
}

@media (hover: hover) {
  :where(.margin-site) .site-navigation .navigation-links a:hover {
    text-decoration: underline;
  }

  :where(.margin-site)
    .site-navigation
    > ul
    > li
    > a:not([aria-current="page"]):hover,
  :where(.margin-site)
    .site-navigation
    summary:not([aria-current="page"]):hover {
    color: var(--color-black);
    background: #ccc;
  }
}

@media (hover: hover) {
  .site-dialog.-menu
    .site-navigation
    > ul
    > li
    > a:where(:not([aria-current="page"])):hover {
    color: var(--color-gray-dark);
  }
}