@charset "UTF-8";

/*------------------------------------------------
リセット
------------------------------------------------*/
@charset "UTF-8";

/*! destyle.css v2.0.2 | MIT License | https://github.com/nicolas-cusan/destyle.css */

/* Reset box-model and set borders */
/* ============================================ */

*,
::before,
::after {
  box-sizing: border-box;
  border-style: solid;
  border-width: 0;
}

/* Document */
/* ============================================ */

/**
 * 1. Correct the line height in all browsers.
 * 2. Prevent adjustments of font size after orientation changes in iOS.
 * 3. Remove gray overlay on links for iOS.
 */

html {
  line-height: 1.15; /* 1 */
  -webkit-text-size-adjust: 100%; /* 2 */
  -webkit-tap-highlight-color: transparent; /* 3*/
      /* ルートのフォントサイズを10pxに設定しておく */
	font-size: 62.5%;
}

/* Sections */
/* ============================================ */

/**
 * Remove the margin in all browsers.
 */

body {
  margin: 0;
  /* ルートのフォントサイズを1.6em（16pxと同等のサイズ）に設定 */
	font-size: 1.6em;
}

/**
 * Render the `main` element consistently in IE.
 */

main {
  display: block;
}

/* Vertical rhythm */
/* ============================================ */

p,
table,
blockquote,
address,
pre,
iframe,
form,
figure,
dl {
  margin: 0;
}

/* Headings */
/* ============================================ */

h1,
h2,
h3,
h4,
h5,
h6 {
  /* font-size: inherit;
  line-height: inherit;
  font-weight: inherit;
  margin: 0; */
}

/* Lists (enumeration) */
/* ============================================ */

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

/* Lists (definition) */
/* ============================================ */

dt {
  font-weight: bold;
}

dd {
  margin-left: 0;
}

/* Grouping content */
/* ============================================ */

/**
 * 1. Add the correct box sizing in Firefox.
 * 2. Show the overflow in Edge and IE.
 */

hr {
  box-sizing: content-box; /* 1 */
  height: 0; /* 1 */
  overflow: visible; /* 2 */
  border-top-width: 1px;
  margin: 0;
  clear: both;
  color: inherit;
}

/**
 * 1. Correct the inheritance and scaling of font size in all browsers.
 * 2. Correct the odd `em` font sizing in all browsers.
 */

pre {
  font-family: monospace, monospace; /* 1 */
  font-size: inherit; /* 2 */
}

address {
  font-style: inherit;
}

/* Text-level semantics */
/* ============================================ */

/**
 * Remove the gray background on active links in IE 10.
 */

a {
  background-color: transparent;
  text-decoration: none;
  color: inherit;
}

/**
 * 1. Remove the bottom border in Chrome 57-
 * 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
 */

abbr[title] {
  text-decoration: underline; /* 2 */
  text-decoration: underline dotted; /* 2 */
}

/**
 * Add the correct font weight in Chrome, Edge, and Safari.
 */

b,
strong {
  font-weight: bolder;
}

/**
 * 1. Correct the inheritance and scaling of font size in all browsers.
 * 2. Correct the odd `em` font sizing in all browsers.
 */

code,
kbd,
samp {
  font-family: monospace, monospace; /* 1 */
  font-size: inherit; /* 2 */
}

/**
 * Add the correct font size in all browsers.
 */

small {
  font-size: 80%;
}

/**
 * Prevent `sub` and `sup` elements from affecting the line height in
 * all browsers.
 */

sub,
sup {
  font-size: 75%;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
}

sub {
  bottom: -0.25em;
}

sup {
  top: -0.5em;
}

/* Embedded content */
/* ============================================ */

/**
 * Prevent vertical alignment issues.
 */

img,
embed,
object,
iframe {
  vertical-align: bottom;
}

/* Forms */
/* ============================================ */

/**
 * Reset form fields to make them styleable
 */

button,
input,
optgroup,
select,
textarea {
  -webkit-appearance: none;
  appearance: none;
  vertical-align: middle;
  color: inherit;
  font: inherit;
  background: transparent;
  padding: 0;
  margin: 0;
  outline: 0;
  border-radius: 0;
  text-align: inherit;
}

/**
 * Reset radio and checkbox appearance to preserve their look in iOS.
 */

[type="checkbox"] {
  -webkit-appearance: checkbox;
  appearance: checkbox;
}

[type="radio"] {
  -webkit-appearance: radio;
  appearance: radio;
}

/**
 * Show the overflow in IE.
 * 1. Show the overflow in Edge.
 */

button,
input {
  /* 1 */
  overflow: visible;
}

/**
 * Remove the inheritance of text transform in Edge, Firefox, and IE.
 * 1. Remove the inheritance of text transform in Firefox.
 */

button,
select {
  /* 1 */
  text-transform: none;
}

/**
 * Correct the inability to style clickable types in iOS and Safari.
 */

button,
[type="button"],
[type="reset"],
[type="submit"] {
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
}

button[disabled],
[type="button"][disabled],
[type="reset"][disabled],
[type="submit"][disabled] {
  cursor: default;
}

/**
 * Remove the inner border and padding in Firefox.
 */

button::-moz-focus-inner,
[type="button"]::-moz-focus-inner,
[type="reset"]::-moz-focus-inner,
[type="submit"]::-moz-focus-inner {
  border-style: none;
  padding: 0;
}

/**
 * Restore the focus styles unset by the previous rule.
 */

button:-moz-focusring,
[type="button"]:-moz-focusring,
[type="reset"]:-moz-focusring,
[type="submit"]:-moz-focusring {
  outline: 1px dotted ButtonText;
}

/**
 * Remove arrow in IE10 & IE11
 */

select::-ms-expand {
  display: none;
}

/**
 * Remove padding
 */

option {
  padding: 0;
}

/**
 * Reset to invisible
 */

fieldset {
  margin: 0;
  padding: 0;
  min-width: 0;
}

/**
 * 1. Correct the text wrapping in Edge and IE.
 * 2. Correct the color inheritance from `fieldset` elements in IE.
 * 3. Remove the padding so developers are not caught out when they zero out
 *    `fieldset` elements in all browsers.
 */

legend {
  color: inherit; /* 2 */
  display: table; /* 1 */
  max-width: 100%; /* 1 */
  padding: 0; /* 3 */
  white-space: normal; /* 1 */
}

/**
 * Add the correct vertical alignment in Chrome, Firefox, and Opera.
 */

progress {
  vertical-align: baseline;
}

/**
 * Remove the default vertical scrollbar in IE 10+.
 */

textarea {
  overflow: auto;
}

/**
 * Correct the cursor style of increment and decrement buttons in Chrome.
 */

[type="number"]::-webkit-inner-spin-button,
[type="number"]::-webkit-outer-spin-button {
  height: auto;
}

/**
 * 1. Correct the outline style in Safari.
 */

[type="search"] {
  outline-offset: -2px; /* 1 */
}

/**
 * Remove the inner padding in Chrome and Safari on macOS.
 */

[type="search"]::-webkit-search-decoration {
  -webkit-appearance: none;
}

/**
 * 1. Correct the inability to style clickable types in iOS and Safari.
 * 2. Change font properties to `inherit` in Safari.
 */

::-webkit-file-upload-button {
  -webkit-appearance: button; /* 1 */
  font: inherit; /* 2 */
}

/**
 * Clickable labels
 */

label[for] {
  cursor: pointer;
}

/* Interactive */
/* ============================================ */

/*
 * Add the correct display in Edge, IE 10+, and Firefox.
 */

details {
  display: block;
}

/*
 * Add the correct display in all browsers.
 */

summary {
  display: list-item;
}

/*
 * Remove outline for editable content.
 */

[contenteditable] {
  outline: none;
}

/* Table */
/* ============================================ */

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

caption {
  text-align: left;
}

td,
th {
  vertical-align: top;
  padding: 0;
}

th {
  text-align: left;
  font-weight: bold;
}

/* Misc */
/* ============================================ */

/**
 * Add the correct display in IE 10+.
 */

template {
  display: none;
}

/**
 * Add the correct display in IE 10.
 */

[hidden] {
  display: none;
}

/*------------------------------------------------
共通
------------------------------------------------*/

body {
  font-family: "游ゴシック体", YuGothic, "游ゴシック", "Yu Gothic", sans-serif;
  font-size: 1.6rem;
  line-height: 2;
  color: #000000;
  font-weight: bold;
  letter-spacing: 0.05em;
  text-align: left;
}

@media screen and (max-width: 767px) {
  body {
    font-size: 1.4rem;
  }
}

a:link, a:visited {
color: initial;
}

.flex_box {
  display: -moz-box;
  display: flex;
}

@media screen and (max-width: 767px) {
  .flex_box {
    -moz-box-orient: vertical;
    -moz-box-direction: normal;
         flex-direction: column;
  }
}

.btn {
  width: 100%;
  max-width: 250px;
  border-radius: 30px;
  padding: 17px;
  text-align: center;
  line-height: 1;
  position: relative;
  transition: all 0.3s ease;
}
.btn img {
  position: absolute;
  top: 50%;
  right: 18px;
  transform: translateY(-50%);
  width: 20px;
}

.btn_white {
  border: 2px solid #536BE8;
  background: #ffffff;
  color: #536BE8;
  display: block;
}

.btn_white:link, 
.btn_white:visited {
color: #536BE8;
}

.btn_white img:nth-of-type(2) {
  opacity: 0;
  transition: 0.3s ease;
}
.btn_white:hover {
  background: #536BE8;
  color: #ffffff;
}
.btn_white:hover img:nth-of-type(2) {
  opacity: 1;
}

.btn_grade {
  padding: 19px;
  background: linear-gradient(to right, #BE83F1, #536BE8);
  color: #ffffff;
}
.btn_grade:hover {
  opacity: 0.7;
}

.btn_box {
  text-align: center;
}

.container {
  padding: 30px 20px 0;
}

.container:first-of-type {
 padding-top: 40px;
margin-top: 90px;
}

@media screen and (max-width: 768px) {
.container {
  padding: 30px 0 0;
}

.container:first-of-type {
   padding-top: 40px;
   margin-top: 80px;
}
}

#rightArea input::placeholder {
  color:#ddd;
  font-size:12px;
}

#rightArea ul li {
    list-style: disc;
    margin: 0 0 10px 20px;
    font-size:14px;
}

.articleList img:hover {
    transform: scale(1.05, 1.05);
}

.articleList h1 {
    font-size: 16px;
    margin-bottom: 10px;
}

#articleArea h2 {
font-weight: bold;
}

.articleList article p {
color:#aaa;
font-size:13px;
line-height:1.4;
}

#intoro {
font-size: 14px;
font-weight: 500;
}

/*------------------------------------------------
ヘッダー
------------------------------------------------*/
header {
  width: 100%;
  padding: 15px 30px;
  background-color: #ffffff;
  display: -moz-box;
  display: flex;
  -moz-box-pack: justify;
       justify-content: space-between;
  -moz-box-align: center;
       align-items: center;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 2;
}
header h1 a {
  display: -moz-box;
  display: flex;
  -moz-box-align: center;
       align-items: center;
}
header h1 img {
  width: 120px;
}
header h1 a:hover {
  opacity: 0.7;
}
header nav ul {
  display: -moz-box;
  display: flex;
  -moz-column-gap: 30px;
       column-gap: 30px;
  -moz-box-align: center;
       align-items: center;
  font-size: 1.4rem;
}
header a:hover {
  color: #536BE8;
}
header .parent_menu {
  position: relative;
}
header .sub_menu {
  display: none;
  width: 400px;
  border-radius: 10px;
  padding: 30px;
  background-color: #e9ecff;
  position: absolute;
  top: 60px;
  left: 50%;
  transform: translateX(-50%);
  box-shadow: 0 3px 6px rgba(0, 0, 0, 0.16);
}
header .sub_menu::before {
  content: "";
  position: absolute;
  top: -30px;
  left: 50%;
  margin-left: -15px;
  border: 15px solid transparent;
  border-bottom: 15px solid #e9ecff;
}
header .sub_menu ul {
  display: -moz-box;
  display: flex;
  -moz-box-orient: vertical;
  -moz-box-direction: normal;
       flex-direction: column;
  row-gap: 10px;
  -moz-box-align: center;
       align-items: center;
}
header .sub_menu li {
  border-bottom: 1px solid #cdd5ff;
  padding: 10px 0;
  width: 100%;
  text-align: center;
}
header .sub_menu li:last-of-type {
  border-bottom: none;
}
header .burger_btn {
  display: none;
  font-size: 2.5rem;
  color: #536BE8;
  cursor: pointer;
  transition: all 0.3s ease;
}
header .burger_btn:hover {
  opacity: 0.7;
}

@media screen and (min-width: 768px) and (max-width: 1524px) {
 header {
    padding: 13px 20px;
  }
  header h1 img {
    width: 100px;
  }
  header nav {
    display: none;
  }
  header .burger_btn {
    display: block;
  }
}
@media screen and (max-width: 767px) {
  header {
    padding: 13px 20px;
  }
  header h1 img {
    width: 100px;
  }
  header nav {
    display: none;
  }
  header .burger_btn {
    display: block;
  }
}
.overlay {
  display: none;
  width: 100%;
  padding: 50px 30px;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 3;
  background: linear-gradient(to right, #BE83F1, #536BE8);
  color: #ffffff;
}

.overlay a {
color:white;
}

.overlay .close_btn {
  font-size: 2.5rem;
  position: absolute;
  top: 20px;
  right: 30px;
  cursor: pointer;
  transition: all 0.3s ease;
}
.overlay .close_btn:hover {
  opacity: 0.7;
}
.overlay ul {
  display: -moz-box;
  display: flex;
  -moz-box-orient: vertical;
  -moz-box-direction: normal;
       flex-direction: column;
  row-gap: 15px;
}
.overlay .click_item {
  margin-bottom: 5px;
  cursor: pointer;
}
.overlay .sub_menu ul {
  padding-left: 10px;
  row-gap: 5px;
  font-weight: normal;
}
.overlay a:hover {
  opacity: 0.7;
}

.click_item {
  cursor: pointer;
}

/*------------------------------------------------
フッター
------------------------------------------------*/
footer {
  background-color: #333333;
  color: #ffffff;
  padding: 0;
}

footer .footer_inner {
  padding: 50px 0 60px;
  width: 90%;
   max-width: 1200px;
   margin: 0 auto;
}
footer .footer_logo {
  width: 180px;
  margin-bottom: 20px;
}
footer .flex_box {
  margin-bottom: 50px;
  -moz-box-pack: justify;
       justify-content: space-between;
}
footer a:hover {
  opacity: 0.7;
}
footer .click_item {
  pointer-events: none;
}
footer .left_area h2 {
  margin-bottom: 10px;
  font-size: 1.6rem;
}
footer .left_area p {
  margin-bottom: 10px;
  color: #888888;
  font-size: 1.4rem;
}
footer .left_area ul {
  display: -moz-box;
  display: flex;
  -moz-column-gap: 8px;
       column-gap: 8px;
}
footer .left_area .line {
  margin-top: 20px;
  width: fit-content;
}
footer .left_area .line a {
  border: 1px solid #888;
  padding: 20px;
  display: flex;
  align-items: center;
  border-radius: 10px;
  color: #888;
}
footer .left_area .line img {
  width: 40px;
  margin-right: 20px;
  height: auto;
}



footer .right_area {
  font-size: 1.4rem;
}
footer .right_area nav {
  display: -moz-box;
  display: flex;
  -moz-column-gap: 100px;
       column-gap: 100px;
}

footer .right_area nav a {
color: #fff;
}

footer .right_area ul {
  display: -moz-box;
  display: flex;
  -moz-box-orient: vertical;
  -moz-box-direction: normal;
       flex-direction: column;
  row-gap: 25px;
}
footer .right_area .sub_menu {
  padding-left: 20px;
  font-weight: normal;
}
footer .right_area .sub_menu a {
 color: #aaa;
}
footer .right_area .sub_menu ul {
  row-gap: 10px;
}
footer .copyright {
  color: #888888;
  font-size: 1.2rem;
}

@media screen and (min-width: 768px) and (max-width: 1024px) {
  footer .right_area nav {
    -moz-column-gap: 30px;
         column-gap: 30px;
  }
}
@media screen and (max-width: 767px) {
  footer .footer_inner {
    padding: 40px 0;
  }
  footer .footer_logo {
    width: 120px;
  }
  footer .flex_box {
    margin-bottom: 30px;
    row-gap: 30px;
  }
  footer .right_area nav {
    flex-wrap: wrap;
    gap: 15px 30px;
  }
  footer .right_area ul {
    row-gap: 15px;
  }
}