@charset "UTF-8";

* {
  margin: 0;
  padding: 0;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}

html, body, div, span, applet, object,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, font, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td {
  margin: 0;
  padding: 0;
  border: 0;
  vertical-align: baseline;
  font-family: inherit;
  font-style: inherit;
  font-weight: inherit;
}

article, aside, details, figcaption, figure, footer, header, hgroup, main, menu, nav, section, details, summary {
  display: block;
}

html {
  -webkit-text-size-adjust: none;
  height: 100%;
  max-width: 2560px;
}

body {
    margin: 0;
    font-family: 'Noto Sans JP', sans-serif;
    color: #333;
    background: #F5F7FA;
	  font-size: 16px;
  line-height: 1.75;
  height: 100%;
    font-weight: 400;
}

@media screen and (max-width: 767px) {
  body {
    font-size: 13px;
    font-size: 3.4666666667vw;
  }
}

.wrapper {
  min-height: 100vh;     /* 画面の高さに最低限合わせる */
  display: flex;
  flex-direction: column;
}
.content {
  flex: 1;               /* 余白をここで吸収してフッターを下に押す */
}
.space2em{
padding:2em 0;
}

p.space01 {
    padding: 0 0 1em 0;
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 5%;
    background: #003366;
    color: #fff;
}

.logo {
    font-family: "Helvetica Neue", "Helvetica", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Arial", "Yu Gothic", "Meiryo", sans-serif;
    font-weight: 900;
    font-size: 24px;
}

.logo a {
        color: #fff;
    text-decoration: none;
}

/* Navigation */
.nav ul {
    display: flex;
    gap: 20px;
    list-style: none;
}

.nav a {
    color: #fff;
    text-decoration: none;
    font-weight: 700;
}

.menu-btn {
    display: none;
    color: #fff;
    font-size: 24px;
    cursor: pointer;
}



/* Section */
.section {
    padding: 50px 10%;
}

.section a:hover {
    color:#0077CC;
 
}


.section-title {
    font-size: 28px;
    color: #000; /* テキストは黒 */
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 8px; 
}

.section-title::before {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    height: 3px;        
    width: 15%;        
    background-color: #0077CC;
}

.section-title::after {
    content: "";
    position: absolute;
    left: 15%;
    bottom: 0;
    height: 2px;        
    width: 85%;         
    background-color: #ddd;
}

.section-subtitle {
    font-size: 23px;
    color: #000;
    margin-bottom: 20px;
    padding-bottom: 8px;
    border-bottom: 1px solid #ddd;
}
.nav.active {
    display: block;
}

 .note {
    font-size: 14px;
    color: #666;
    margin-top: 5px;
	text-indent: -2em;
    padding-left: 2em;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 20px;
    background: #003366;
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
    margin-top: 15px;
}

.btn:after {
    border-right: 2px solid #fff;
    border-top: 2px solid #fff;
    content: "";
    display: inline-block;
    height: 5px;
    margin-left: 5px;
    -webkit-transform: rotate(45deg) translateY(-2px);
    transform: rotate(45deg) translateY(-2px);
    -webkit-transition: all .3s;
    transition: all .3s;
    width: 5px;
}

a.btn:hover {
        background-color: #b2b2b2;
        color: #fff;
    }
	
.btn.right {
    display: block;
    width: fit-content;
    margin-left: auto;
}

.btn-pdf {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: 6px;
    background: #003366;
    color: #fff;
    font-weight: 600;
    text-decoration: none;
    font-size: 16px;
    transition: background 0.3s, transform 0.1s;
}

.btn-pdf i {
    font-size: 18px;
}

.btn-pdf:hover {
    background: #b2b2b2;
}

.btn-pdf:active {
    transform: scale(0.96);
}


/* Footer */
.footer {
background: #003366;
  color: #fff;
  padding: 5px 6%;
  text-align: center;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer p {
    font-size:0.8em;
}

.footer-nav {
    list-style: none;
    padding: 0;
    display: flex;
    justify-content: center;
    gap: 20px;
}

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

/* TOPへ戻るボタン */
.back-to-top {
    position: fixed;
    bottom: 57px;
    right: 20px;
    background: #003366;
    color: #fff;
    padding: 12px 16px;
    border-radius: 10px;
    font-size: 14px;
    text-decoration: none;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
}

/* 表示された状態 */
.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

/* ホバー */
.back-to-top:hover {
    background: #003366;
}

/* スマホ用：少し大きめ＆位置調整 */
@media screen and (max-width: 600px) {
    .back-to-top {
        bottom: 15px;
        right: 15px;
        padding: 14px 18px;
        font-size: 16px;
    }
}

/* Responsive --------------------------------------------------- */
@media (max-width: 768px) {
.section {
    padding: 50px 5%;
}

    .nav {
        display: none;
        position: absolute;
        top: 60px;
        left: 0;
        background: #003366;
        width: 100%;
		z-index:999;
    }

    .nav ul {
        display: block;
		margin:0;
		padding:0;
    }
	
	 .nav ul li {
		margin:0;
		        padding: 0;
        border-bottom: 1px #fff dotted;
    }
	
	.nav ul li a {
    display: block;       /* 横幅いっぱいに拡張 */
    padding: 15px 20px;  /* クリックしやすいように余白を追加 */
    text-decoration: none;
}

.nav ul li a:hover {
    background-color: #0077CC; 
    color: #fff;
}


    .menu-btn {
        display: block;
    }
	
	.footer {
    display: block;
}
	
}