/* ==========================================
   1. 基本設定と変数
   ========================================== */
:root {
    --primary-color: #fb6c04;
    --accent-soft: rgba(251, 108, 4, 0.08);
    --bg-color: #fdfdfb;
    --card-bg: #FFFFFF;
    --text-main: #2d2d2d;
    --text-sub: #6b6b6b;
    --grid-color: rgba(0, 0, 0, 0.03);
    --section-padding: 100px;
    --transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    --blue-main: #007bff;
    --blue-dark: #0056b3;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: 'Inter', 'Noto Sans JP', sans-serif;
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
    position: relative;
    overflow-x: hidden;
}

/* ==========================================
   2. 背景装飾（グリッド・浮遊ライト）
   ========================================== */
body::before {
    content: "";
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    z-index: -2;
    background-image: 
        linear-gradient(var(--grid-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
    background-size: 45px 45px;
}

body::after {
    content: "";
    position: fixed;
    top: -50%; left: -50%; width: 200%; height: 200%;
    z-index: -1;
    background: 
        radial-gradient(circle at 30% 20%, rgba(251, 108, 4, 0.03) 0%, transparent 25%),
        radial-gradient(circle at 70% 80%, rgba(251, 108, 4, 0.02) 0%, transparent 35%);
    animation: floatingLight 40s linear infinite;
    pointer-events: none;
}

@keyframes floatingLight {
    0% { transform: translate(0, 0) rotate(0deg); }
    50% { transform: translate(-3%, -5%) rotate(2deg); }
    100% { transform: translate(0, 0) rotate(0deg); }
}

/* ==========================================
   3. ヘッダー・ナビゲーション
   ========================================== */
header {
    position: fixed;
    top: 0; width: 100%; z-index: 1000;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    padding: 20px;
}

nav a {
    text-decoration: none;
    color: var(--text-main);
    font-weight: 700;
    font-size: 0.9rem;
    margin: 0 25px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: var(--transition);
    position: relative;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: -5px; left: 0; width: 0; height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

nav a:hover::after {
    width: 100%;
}

nav a i {
    margin-right: 8px;
    font-size: 1.1em; /* アイコンを少し強調 */
    color: var(--primary-color); /* アイコンの色をアクセントカラーに */
    transition: var(--transition);
}

nav a:hover i {
    transform: translateY(-2px);
}

/* ==========================================
   4. メインビジュアル・共通セクション
   ========================================== */
.mv {
    height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(rgba(0,0,0,0.05), rgba(0,0,0,0.05)), url("../img/mv_2025.jpg") center/cover no-repeat;
    margin-top: 60px;
    overflow: hidden;
}

.mv h1 {
    font-size: clamp(2rem, 8vw, 5rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--primary-color);
    background: #ffffff;
    padding: 20px 60px;
    box-shadow: 0 30px 60px rgba(251, 108, 4, 0.1);
    border: 1px solid rgba(251, 108, 4, 0.2);
}

.contents {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
}

.sec {
    padding: var(--section-padding) 0;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeIn 1s forwards;
}

@keyframes fadeIn {
    to { opacity: 1; transform: translateY(0); }
}

h2 {
    font-size: 2.2rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 5% !important;
    position: relative;
    color: var(--text-main);
}

h2::after {
    content: '';
    display: block;
    width: 40px; height: 3px;
    background: var(--primary-color);
    margin: 15px auto 0;
    border-radius: 2px;
}

.sec01 p {
    font-size: 1.1rem;
    max-width: 800px;
    margin: 0 auto;
    color: var(--text-sub);
    text-align: justify;
}

/* ==========================================
   5. グリッドコンテンツ (sec02)
   ========================================== */
.flex {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 30px;
}

.sec02 figure {
    background: #ffffff;
    padding: 30px;
    border-radius: 20px;
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.03);
    border-bottom: 3px solid var(--primary-color);
    box-shadow: 0 10px 40px rgba(0,0,0,0.04);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
}

.sec02 figure:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(251, 108, 4, 0.1) !important;
}

.sec02 img {
    max-width: 100%;
    height: auto;
    filter: none !important;
    -webkit-filter: grayscale(0) !important;
    opacity: 1 !important;
    margin-bottom: 20px;
    transition: var(--transition);
}

.sec02 a:hover img {
    opacity: 0.8;
}

.sec02 figcaption {
    font-size: 0.8rem;
    font-weight: 700;
    text-align: center;
    color: var(--text-main);
}
/* ==========================================
   6. デジタルブック セクション
   ========================================== */
.digitalbook_flex_container {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: 80px;
    max-width: 1200px;
    margin: 50px auto;
    padding: 0 20px;
}

.digitalbook_item {
    flex: 1;
    min-width: 350px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.book_label {
    font-size: 1.6rem;
    font-weight: bold;
    color: #ffffff;
    background-color: var(--blue-dark);
    margin-bottom: 30px;
    padding: 8px 30px;
    border-radius: 50px;
    width: fit-content;
    box-shadow: 0 4px 10px rgba(0, 86, 179, 0.2);
}

.button_column {
    display: flex;
    flex-direction: column;
    gap: 45px;
    align-items: center;
}

.book_link {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    width: 100%;
}

.book_link img {
    width: 100%;
    max-width: 320px;
    height: auto;
    filter: grayscale(0) !important;
    -webkit-filter: grayscale(0) !important;
    opacity: 1 !important;
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    margin-bottom: 15px;
    background-color: #fff;
    transition: var(--transition);
}

.book_link:hover img {
    opacity: 0.8 !important;
}

.btn_text {
    display: inline-block;
    font-size: 1.1rem;
    font-weight: bold;
    color: #ffffff;
    background-color: var(--blue-main);
    padding: 10px 25px;
    border-radius: 8px;
    box-shadow: 0 4px 0 var(--blue-dark);
    transition: transform 0.1s;
}

.book_link:active .btn_text {
    transform: translateY(3px);
    box-shadow: none;
}

/* ==========================================
   7. バナー・フッター
   ========================================== */
.banner {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 50px;
}

.banner img {
    width: 100%;
    border-radius: 12px;
    transition: var(--transition);
}

.banner img:hover {
    opacity: 0.8;
    transform: scale(0.98);
}

footer {
    background: #2d2d2d;
    color: #fff;
    padding: 60px 0;
    text-align: center;
    margin-top: 100px;
    border-top: 4px solid var(--primary-color);
}

footer p {
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    opacity: 0.6;
}

/* ==========================================
   8. レスポンシブ
   ========================================== */
@media screen and (max-width: 850px) {
    .digitalbook_flex_container {
        flex-direction: column;
        align-items: center;
        gap: 60px;
    }
    .digitalbook_item {
        min-width: auto;
        width: 100%;
    }
}

@media screen and (max-width: 768px) {
    :root { --section-padding: 60px; }
    nav a { margin: 0 10px; font-size: 0.75rem; }
    .flex { grid-template-columns: 1fr 1fr; }
    .banner { grid-template-columns: 1fr; }
    .mv { height: 50vh; }
    .mv h1 {
        padding: 10px 20px;
        box-shadow: 10px 10px 0px rgba(251, 108, 4, 0.1);
    }
    h2 { font-size: 1.6rem; }
    nav a i {
        display: block;
        margin-right: 0;
        margin-bottom: 4px;
        font-size: 1.2rem;
    }
    nav {
        padding: 10px 0;
    }
}

.area-group {
    margin-bottom: 60px;
}

.area-title {
    font-size: 1.4rem;
    font-weight: 800;
    margin-bottom: 25px;
    padding-left: 15px;
    border-left: 5px solid var(--primary-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.east .area-title { border-color: #28a745; color: #28a745; }
.central .area-title { border-color: #007bff; color: #007bff; }
.west .area-title { border-color: #fb6c04; color: #fb6c04; }

.east .sec02 figure { border-bottom: 3px solid #007bff; }
.central .sec02 figure { border-bottom: 3px solid #fb6c04; }
.west .sec02 figure { border-bottom: 3px solid #28a745; }

.sec02 .flex {
    margin-top: 10px;
}

@media screen and (max-width: 768px) {
    .area-title {
        font-size: 1.2rem;
        justify-content: center;
        border-left: none;
        border-bottom: 2px solid;
        padding-left: 0;
        padding-bottom: 5px;
    }
}

#sec06 {
    padding: 60px 0;
    width: 100%;
    background-color: #fff8f2;
}

.magazine_wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    width: 100%;
}

#sec06 h2 {
    font-size: 1.6rem;
    margin-bottom: 40px;
    font-weight: 700;
}

.digitalbook_container {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    margin-bottom: 40px;
}

.main_hyoshi {
    width: 100%;
    max-width: 500px;
    height: auto;
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
    margin-bottom: 20px;
}

.status_text {
    font-size: 1.15rem;
    font-weight: 700;
    line-height: 1.6;
    color: #333;
}

.digitalbook_container_pdf {
    margin-top: 10px;
}

.pdf_link {
    text-decoration: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: transform 0.2s ease;
}

.pdf_link:hover {
    transform: scale(1.03);}

.pdf_btn_img {
    width: 280px; 
    height: auto;
    margin-bottom: 10px;
}

.download_text {
    font-weight: 700;
    color: #333;
    font-size: 1rem;
}

@media (max-width: 768px) {
    #sec06 h2 { font-size: 1.4rem; }
    .main_hyoshi { width: 85%;
	margin:0 auto; }
}

.area-group a {text-decoration: none}






/* ==========================================
   セクションごとの明確な区切り（背景の交互塗り）
   ========================================== */
.sec {
    position: relative;
    padding: 120px 0; /* 余白を広げてゆとりを持たせる */
    margin: 0;
    transition: background 0.3s ease;
}

/* 偶数セクション：非常に薄いグレー＋微細なパターン */
.sec:nth-of-type(even) {
    border-top: 1px solid rgba(0,0,0,0.05);
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

/* ==========================================
   派手でモダンなh2デザイン
   ========================================== */
h2 {
    position: relative;
    font-size: 1.6rem;
    font-weight: 900;
    text-align: center;
    margin-bottom: 80px !important;
    color: #1a1a1a;
    line-height: 1.1;
    text-transform: uppercase;
}

/* 背後に大きな透過文字を配置 */
h2::before {
    content: attr(data-en); /* HTML側に <h2 data-en="AREAS"> 形式で記述が必要 */
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -60%);
    font-size: 1.8em;
    color: rgba(251, 108, 4, 0.05); /* アクセントカラーを極薄く */
    z-index: -1;
    width: 100%;
    letter-spacing: 0.2em;
}

/* タイトルの下の装飾線（太く、グラデーションに） */
h2::after {
    content: '';
    display: block;
    width: 80px;
    height: 6px;
    background: linear-gradient(90deg, var(--primary-color), #ffcc00);
    margin: 20px auto 0;
    border-radius: 10px;
}

/* ==========================================
   エリアグループごとの見出し（さらに強調）
   ========================================== */
.area-title {
    font-size: 1.8rem;
    padding: 15px 25px;
    background: #fff;
    box-shadow: 10px 10px 0px rgba(0,0,0,0.05); /* 立体的な影 */
    border: 2px solid currentColor; /* 各エリアの色を使用 */
    display: inline-flex;
    margin-bottom: 40px;
    transform: rotate(-1deg); /* 少し斜めにして躍動感を出す */
}

@media screen and (max-width: 768px) {
    h2 { font-size: 2rem; }
    .sec { padding: 80px 0; }
}



.sec02 {background:#fff;}

.sec04 {background:#fff8f2;}

.link_none {pointer-events: none; color: gray; text-decoration: none;}

.digitalbook_container a img:hover {opacity:0.8;
transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1);}

.digitalbook_container a img { border-radius: 12px;
box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);}