@charset "UTF-8";
/*! normalize.scss v0.1.0 | MIT License | based on git.io/normalize */
/**
 * 1. Set default font family to sans-serif.
 * 2. Prevent iOS text size adjust after orientation change, without disabling
 *    user zoom.
 */
html {
  font-family: sans-serif; /* 1 */
  -ms-text-size-adjust: 100%; /* 2 */
  -webkit-text-size-adjust: 100%; /* 2 */
}

/**
 * Remove default margin.
 */
body {
  margin: 0;
}

/* HTML5 display definitions
   ========================================================================== */
/**
 * Correct `block` display not defined for any HTML5 element in IE 8/9.
 * Correct `block` display not defined for `details` or `summary` in IE 10/11
 * and Firefox.
 * Correct `block` display not defined for `main` in IE 11.
 */
article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
main,
menu,
nav,
section,
summary {
  display: block;
}

/**
 * 1. Correct `inline-block` display not defined in IE 8/9.
 * 2. Normalize vertical alignment of `progress` in Chrome, Firefox, and Opera.
 */
audio,
canvas,
progress,
video {
  display: inline-block; /* 1 */
  vertical-align: baseline; /* 2 */
}

/**
 * Prevent modern browsers from displaying `audio` without controls.
 * Remove excess height in iOS 5 devices.
 */
audio:not([controls]) {
  display: none;
  height: 0;
}

/**
 * Address `[hidden]` styling not present in IE 8/9/10.
 * Hide the `template` element in IE 8/9/11, Safari, and Firefox < 22.
 */
[hidden],
template {
  display: none;
}

/* Links
   ========================================================================== */
/**
 * Remove the gray background color from active links in IE 10.
 */
a {
  background-color: transparent;
}

/**
 * Improve readability when focused and also mouse hovered in all browsers.
 */
a:active,
a:hover {
  outline: 0;
}

/* Text-level semantics
   ========================================================================== */
/**
 * Address styling not present in IE 8/9/10/11, Safari, and Chrome.
 */
abbr[title] {
  border-bottom: 1px dotted;
}

/**
 * Address style set to `bolder` in Firefox 4+, Safari, and Chrome.
 */
b,
strong {
  font-weight: bold;
}

/**
 * Address styling not present in Safari and Chrome.
 */
dfn {
  font-style: italic;
}

/**
 * Address variable `h1` font-size and margin within `section` and `article`
 * contexts in Firefox 4+, Safari, and Chrome.
 */
h1 {
  font-size: 2em;
  margin: 0.67em 0;
}

/**
 * Address styling not present in IE 8/9.
 */
mark {
  background: #ff0;
  color: #000;
}

/**
 * Address inconsistent and variable font size in all browsers.
 */
small {
  font-size: 80%;
}

/**
 * Prevent `sub` and `sup` affecting `line-height` in all browsers.
 */
sub,
sup {
  font-size: 75%;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
}

sup {
  top: -0.5em;
}

sub {
  bottom: -0.25em;
}

/* Embedded content
   ========================================================================== */
/**
 * Remove border when inside `a` element in IE 8/9/10.
 */
img {
  border: 0;
}

/**
 * Correct overflow not hidden in IE 9/10/11.
 */
svg:not(:root) {
  overflow: hidden;
}

/* Grouping content
   ========================================================================== */
/**
 * Address margin not present in IE 8/9 and Safari.
 */
figure {
  margin: 1em 40px;
}

/**
 * Address differences between Firefox and other browsers.
 */
hr {
  box-sizing: content-box;
  height: 0;
}

/**
 * Contain overflow in all browsers.
 */
pre {
  overflow: auto;
}

/**
 * Address odd `em`-unit font size rendering in all browsers.
 */
code,
kbd,
pre,
samp {
  font-family: monospace, monospace;
  font-size: 1em;
}

/* Forms
   ========================================================================== */
/**
 * Known limitation: by default, Chrome and Safari on OS X allow very limited
 * styling of `select`, unless a `border` property is set.
 */
/**
 * 1. Correct color not being inherited.
 *    Known issue: affects color of disabled elements.
 * 2. Correct font properties not being inherited.
 * 3. Address margins set differently in Firefox 4+, Safari, and Chrome.
 */
button,
input,
optgroup,
select,
textarea {
  color: inherit; /* 1 */
  font: inherit; /* 2 */
  margin: 0; /* 3 */
}

/**
 * Address `overflow` set to `hidden` in IE 8/9/10/11.
 */
button {
  overflow: visible;
}

/**
 * Address inconsistent `text-transform` inheritance for `button` and `select`.
 * All other form control elements do not inherit `text-transform` values.
 * Correct `button` style inheritance in Firefox, IE 8/9/10/11, and Opera.
 * Correct `select` style inheritance in Firefox.
 */
button,
select {
  text-transform: none;
}

/**
 * 1. Avoid the WebKit bug in Android 4.0.* where (2) destroys native `audio`
 *    and `video` controls.
 * 2. Correct inability to style clickable `input` types in iOS.
 * 3. Improve usability and consistency of cursor style between image-type
 *    `input` and others.
 */
button,
html input[type=button],
input[type=reset],
input[type=submit] {
  -webkit-appearance: button; /* 2 */
  cursor: pointer; /* 3 */
}

/**
 * Re-set default cursor for disabled elements.
 */
button[disabled],
html input[disabled] {
  cursor: default;
}

/**
 * Remove inner padding and border in Firefox 4+.
 */
button::-moz-focus-inner,
input::-moz-focus-inner {
  border: 0;
  padding: 0;
}

/**
 * Address Firefox 4+ setting `line-height` on `input` using `!important` in
 * the UA stylesheet.
 */
input {
  line-height: normal;
}

/**
 * It's recommended that you don't attempt to style these elements.
 * Firefox's implementation doesn't respect box-sizing, padding, or width.
 *
 * 1. Address box sizing set to `content-box` in IE 8/9/10.
 * 2. Remove excess padding in IE 8/9/10.
 */
input[type=checkbox],
input[type=radio] {
  box-sizing: border-box; /* 1 */
  padding: 0; /* 2 */
}

/**
 * Fix the cursor style for Chrome's increment/decrement buttons. For certain
 * `font-size` values of the `input`, it causes the cursor style of the
 * decrement button to change from `default` to `text`.
 */
input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button {
  height: auto;
}

/**
 * 1. Address `appearance` set to `searchfield` in Safari and Chrome.
 * 2. Address `box-sizing` set to `border-box` in Safari and Chrome
 *    (include `-moz` to future-proof).
 */
input[type=search] {
  -webkit-appearance: textfield; /* 1 */ /* 2 */
  box-sizing: content-box;
}

/**
 * Remove inner padding and search cancel button in Safari and Chrome on OS X.
 * Safari (but not Chrome) clips the cancel button when the search input has
 * padding (and `textfield` appearance).
 */
input[type=search]::-webkit-search-cancel-button,
input[type=search]::-webkit-search-decoration {
  -webkit-appearance: none;
}

/**
 * Define consistent border, margin, and padding.
 */
fieldset {
  border: 1px solid #c0c0c0;
  margin: 0 2px;
  padding: 0.35em 0.625em 0.75em;
}

/**
 * 1. Correct `color` not being inherited in IE 8/9/10/11.
 * 2. Remove padding so people aren't caught out if they zero out fieldsets.
 */
legend {
  border: 0; /* 1 */
  padding: 0; /* 2 */
}

/**
 * Remove default vertical scrollbar in IE 8/9/10/11.
 */
textarea {
  overflow: auto;
}

/**
 * Don't inherit the `font-weight` (applied by a rule above).
 * NOTE: the default cannot safely be changed in Chrome and Safari on OS X.
 */
optgroup {
  font-weight: bold;
}

/* Tables
   ========================================================================== */
/**
 * Remove most spacing between table cells.
 */
table {
  border-collapse: collapse;
  border-spacing: 0;
}

td,
th {
  padding: 0;
}

/* color palette from <https://github.com/vuejs/theme> */
:root {
  --c-theme: rgb(255,238,215);
  --c-theme-rgb: 255,230,180;
  --c-white: rgb(255,255,255);
  --c-white-soft: rgb(250,250,250);
  --c-white-mute: rgb(221,221,221);
  --c-white-surround: rgb(245,245,245);
  --c-black: rgb(0,0,0);
  --c-black-soft: rgb(125,125,125);
  --c-black-mute: rgb(191,191,191);
  --c-black-surround: rgb(85,85,85);
  --c-divider: rgb(89,89,89);
  --c-txt-link: rgb(0,105,195);
  --c-txt-focus: rgb(52,152,219);
  --c-attention: rgb(235,39,39);
  --c-txt-attention: rgb(255,255,255);
  --c-attention-soft: rgb(255,230,180);
  --c-txt-attention-soft: rgb(0, 0, 0);
  --c-btn: rgb(255,230,180);
  --c-btn-disabled: rgb(171,171,171);
}

/* semantic color variables for this project */
:root {
  --c-bg: var(--c-white);
  --c-bg-opposite: var(--c-black);
  --c-bg-theme: var(--c-theme);
  --c-bg-surround: var(--c-white-surround);
  --c-heading: var(--c-theme-dark);
  --c-txt: var(--c-black);
  --c-txt-soft: var(--c-black-soft);
  --c-txt-mute: var(--c-black-mute);
  --c-txt-opposite: var(--c-white);
  --c-txt-opposite-soft: var(--c-white-soft);
  --c-txt-opposite-mute: var(--c-white-mute);
  --c-btn-txt: var(--c-black);
  --c-btn-disabled-txt: var(--c-black-mute);
}

*,
*::before,
*::after {
  box-sizing: border-box;
  padding: 0;
  margin: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  background: var(--c-bg);
}
body.is-unscroll {
  overflow: hidden;
}

a {
  color: var(--c-txt-link);
  text-decoration: none;
}
a:where(:-moz-any-link, :enabled, summary):focus {
  -moz-transition: 0.2s;
  transition: 0.2s;
  color: var(--c-txt-focus);
}
a:where(:any-link, :enabled, summary):focus {
  transition: 0.2s;
  color: var(--c-txt-focus);
}
a:where(:-moz-any-link, :enabled, summary):focus svg {
  fill: var(--c-txt-focus);
}
a:where(:any-link, :enabled, summary):focus svg {
  fill: var(--c-txt-focus);
}

button:where(:-moz-any-link, :enabled, summary):focus {
  -moz-transition: 0.2s;
  transition: 0.2s;
  color: var(--c-txt-focus);
}

button:where(:any-link, :enabled, summary):focus {
  transition: 0.2s;
  color: var(--c-txt-focus);
}
button:where(:-moz-any-link, :enabled, summary):focus svg {
  fill: var(--c-txt-focus);
}
button:where(:any-link, :enabled, summary):focus svg {
  fill: var(--c-txt-focus);
}

input:where(:-moz-any-link, :enabled, summary):focus, textarea:where(:-moz-any-link, :enabled, summary):focus, select:where(:-moz-any-link, :enabled, summary):focus, a:where(:-moz-any-link, :enabled, summary):focus, button:where(:-moz-any-link, :enabled, summary):focus {
  outline: 0.125rem solid var(--c-txt-focus);
  outline-offset: -0.125rem;
  z-index: 1;
}

input:where(:any-link, :enabled, summary):focus, textarea:where(:any-link, :enabled, summary):focus, select:where(:any-link, :enabled, summary):focus, a:where(:any-link, :enabled, summary):focus, button:where(:any-link, :enabled, summary):focus {
  outline: 0.125rem solid var(--c-txt-focus);
  outline-offset: -0.125rem;
  z-index: 1;
}

h1, h2, h3, h4, h5, h6 {
  margin-top: 0;
  margin-bottom: 1em;
  font-size: 1rem;
  font-weight: 700;
}

ul, ol {
  padding: 0;
  list-style: none;
}

p {
  margin-bottom: 1em;
}

dd, figure {
  margin: 0;
}

address, em {
  font-style: normal;
}

select {
  -webkit-appearance: none;
     -moz-appearance: none;
          appearance: none;
}

img {
  max-width: 100%;
}

@keyframes fadeIn {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}
.-center {
  text-align: center;
}

.-left {
  text-align: left;
}

.-right {
  text-align: right;
}

.-inline_block {
  display: inline-block;
}

.l-container {
  max-width: 1140px;
  padding-right: 1.25em;
  padding-left: 1.25em;
  margin: auto;
}

.l-wrapper {
  position: relative;
  height: 100%;
  min-height: 100vh;
  background: var(--c-bg);
  color: var(--c-txt);
  font-family: "Hiragino UD Sans W3 JIS2004", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Arial", "Yu Gothic", "Meiryo", sans-serif;
  font-size: clamp(0.875rem, 0.148rem + 3.64vw, 1rem);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-break: anywhere;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  word-break: break-all;
  animation-name: fadeIn;
  animation-duration: 0.4s;
  animation-timing-function: linear;
  animation-delay: 0s;
  animation-iteration-count: 1;
  animation-direction: alternate;
  animation-fill-mode: both;
}

.u-blockskip {
  text-align: center;
}
.u-blockskip a {
  display: block;
  overflow: hidden;
  height: 0;
  line-height: 1;
}
.u-blockskip a:where(:-moz-any-link, :enabled, summary):focus {
  display: inline-block;
  height: unset;
}
.u-blockskip a:where(:any-link, :enabled, summary):focus {
  display: inline-block;
  height: unset;
}

.l-context {
  max-width: 680px;
  margin: 0 auto 1em;
  padding: 1px 0.5em;
}

#site_header .nhk-snsbtn {
  margin: 0.3em 0 0 auto;
  display: table;
}

.l-nhk-header #nol_cmn_header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 2;
}

.l-header {
  min-height: 75px;
  margin-bottom: 2em;
  padding-top: clamp(1rem, -0.156rem + 4.93vw, 3rem);
  padding-bottom: clamp(1rem, -0.156rem + 4.93vw, 3rem);
  background: var(--c-theme);
}
.l-header h1 {
  font-size: 1em;
  margin: 0;
  text-align: center;
}
.l-header h1 a {
  text-decoration: none;
  display: inline-block;
}
.l-header h1 img {
  max-height: 200px;
  vertical-align: bottom;
  width: auto;
  height: auto;
}

.l-nhk-footer {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
}

.lead {
  background: var(--c-bg);
  padding: 3em 0 1em;
  margin: 0 auto 1em;
  max-width: 680px;
  width: 94%;
  line-height: 1.8;
}
.lead em {
  font-weight: 700;
  font-style: normal;
  font-size: 1.25em;
}

ul.notes {
  max-width: 640px;
  margin: 0 auto 2em;
  font-size: 0.875em;
  padding-left: 0;
}
ul.notes li {
  list-style: none;
  padding-left: 1.25em;
  position: relative;
  margin-bottom: 1em;
}
ul.notes li:before {
  content: "※";
  position: absolute;
  top: 0;
  left: 0;
}

body {
  margin: 0;
}

@media (hover: hover) {
  a:where(:-moz-any-link, :enabled, summary):hover {
    -moz-transition: 0.2s;
    transition: 0.2s;
    color: var(--c-txt-focus);
  }
  a:where(:any-link, :enabled, summary):hover {
    transition: 0.2s;
    color: var(--c-txt-focus);
  }
  a:where(:-moz-any-link, :enabled, summary):hover svg {
    fill: var(--c-txt-focus);
  }
  a:where(:any-link, :enabled, summary):hover svg {
    fill: var(--c-txt-focus);
  }
  a:where(:-moz-any-link, :enabled, summary):hover {
    text-decoration-color: color-mix(in srgb, currentColor 10%, currentColor);
    text-decoration: underline;
    text-underline-offset: 0.2em;
  }
  a:where(:any-link, :enabled, summary):hover {
    text-decoration-color: color-mix(in srgb, currentColor 10%, currentColor);
    text-decoration: underline;
    text-underline-offset: 0.2em;
  }
  button:where(:-moz-any-link, :enabled, summary):hover {
    -moz-transition: 0.2s;
    transition: 0.2s;
    color: var(--c-txt-focus);
  }
  button:where(:any-link, :enabled, summary):hover {
    transition: 0.2s;
    color: var(--c-txt-focus);
  }
  button:where(:-moz-any-link, :enabled, summary):hover svg {
    fill: var(--c-txt-focus);
  }
  button:where(:any-link, :enabled, summary):hover svg {
    fill: var(--c-txt-focus);
  }
  button:where(:-moz-any-link, :enabled, summary):hover {
    text-decoration-color: color-mix(in srgb, currentColor 10%, currentColor);
    text-decoration: underline;
    text-underline-offset: 0.2em;
    -moz-transition: 0.2s;
    transition: 0.2s;
  }
  button:where(:any-link, :enabled, summary):hover {
    text-decoration-color: color-mix(in srgb, currentColor 10%, currentColor);
    text-decoration: underline;
    text-underline-offset: 0.2em;
    transition: 0.2s;
  }
}