@charset "utf-8";
/* CSS Document */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@100..900&display=swap');
/* リセットCSS */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 基本設定 */
:root {
    --primary-blue: #0086c9;
    --secondary-blue: #003268;
    --light-blue: #f2f9fc;
    --primary-gold: #e99953;
    --light-gold: #fff8f3;
    --dark-gold: #dd5519;
    --white: #ffffff;
    --gray-100: #f3f4f6;
    --gray-800: #1f2937;
    --gray-600: #4b5563;
}

body {
    font-family: "Noto Sans JP", sans-serif;
	font-optical-sizing: auto;
    line-height: 1.6;
    color: var(--gray-800);
}

/* ヘッダー */
.header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.header-container {
    width: 100%;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    text-decoration: none;
}

.logo img {
    max-width: 300px;
    height: 50px; /* ヘッダーの70pxより少し小さく設定 */
    object-fit: contain; /* アスペクト比を維持して収める */
}

.nav-menu {
    display: flex;
	justify-content: flex-start;
    list-style: none;
    gap: 30px;
}

.nav-menu a {
    text-decoration: none;
    color: var(--gray-800);
    font-weight: 500;
    transition: color 0.3s;
}

.nav-menu a:hover {
    color: var(--primary-blue);
}

.header-cta {
    background: linear-gradient(135deg, var(--primary-gold), var(--dark-gold));
    color: var(--white);
    padding: 12px 24px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: bold;
    transition: transform 0.3s;
	width: fit-content;
}

.header-cta:hover {
    transform: translateY(-2px);
}

/* KVエリア */
.kv-section {
    background: linear-gradient(rgba(30, 58, 138, 0.8), rgba(30, 58, 138, 0.8)), 
url("https://corporate-site-public-bucket.s3.ap-northeast-1.amazonaws.com/images/lp/gaspotal_conference_kv.png");
    background-size: cover;
    background-position: center;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    margin-top: 70px;
}

.kv-content {
    max-width: 800px;
    padding: 0 20px;
}

.kv-sublead {
    background: var(--primary-gold);
    color: var(--white);
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 16px;
    font-weight: bold;
    display: inline-block;
    margin-bottom: 20px;
}

.kv-title {
    font-size: clamp(36px, 6vw, 64px);
    font-weight: bold;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.kv-highlight {
    background: linear-gradient(135deg, var(--primary-gold), var(--dark-gold));
    color: var(--white);
    padding: 20px 30px;
    border-radius: 15px;
    font-size: clamp(20px, 4vw, 28px);
    font-weight: bold;

    margin: 30px 0;
    box-shadow: 0 8px 25px rgba(217, 119, 6, 0.3);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.kv-cta {
    background: var(--white);
    color: var(--primary-blue);
    padding: 18px 40px;
    border-radius: 30px;
    text-decoration: none;
    font-size: 18px;
    font-weight: bold;
    display: inline-block;
    margin-top: 30px;
    transition: all 0.3s;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.kv-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.3);
}

/* セクション共通 */
.section {
    padding: 80px 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-title {
    font-size: clamp(28px, 5vw, 36px);
    font-weight: bold;
    text-align: left;
    margin-bottom: 50px;
    color: var(--secondary-blue);
}

/* キャンペーン概要セクション */
.campaign-section {
    background: var(--light-blue);
}

.campaign-content {
    margin: 0 auto;
    text-align: left;
}

.campaign-description {
    font-size: 18px;
    line-height: 1.8;
    color: var(--gray-600);
}

/* 昨年のイベント様子セクション */
.gallery-section {
    background: var(--white);
}

.carousel-container {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    overflow: hidden;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.carousel-track {
    display: flex;
    transition: transform 0.5s ease;
}

/* スライド自体の修正 */
.carousel-slide {
    min-width: 800px; /* ここがコンテナのmax-widthと同じであることを確認 */
    height: 450px;
    display: flex;
    flex-direction: column; /* 画像とテキストを縦に並べる */
    align-items: center;
    justify-content: center;
    overflow: hidden; /* はみ出し防止 */
}

/* 画像の修正：ここが重要！ */
.carousel-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover; /* 枠いっぱいに綺麗に収める（隙間を出さない） */
    display: block;
}

/* テキスト（pタグ）が画像に被らないように調整する場合 */
.carousel-slide div {
    width: 100%;
    height: 100%;
    position: relative;
}

.carousel-slide p {
    position: absolute;
    bottom: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.6); /* 半透明の黒背景 */
    color: #fff;
    margin: 0;
    padding: 10px;
    text-align: center;
}

.carousel-nav {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
}

.carousel-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--gray-600);
    cursor: pointer;
    transition: background 0.3s;
}

.carousel-dot.active {
    background: var(--primary-blue);
}

/* イベント概要セクション - 上下配置に変更 */
.event-section {
    background: var(--light-gold);
}

.event-content {
    max-width: 800px;
    margin: 0 auto;
}

.event-info {
    background: var(--white);
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    margin-bottom: 40px;
}

.event-info h3 {
    color: var(--primary-blue);
    font-size: 28px;
    margin-bottom: 30px;
    text-align: center;
}

.event-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 0;
}

.event-table th,
.event-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid var(--gray-100);
}

.event-table th {
    background: var(--light-blue);
    color: var(--primary-blue);
    font-weight: bold;
    width: 30%;
}

.event-table td {
    color: var(--gray-600);
}

.conditions {
    background: var(--white);
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.conditions h3 {
    color: var(--primary-blue);
    font-size: 28px;
    margin-bottom: 30px;
    text-align: center;
}

.conditions ul {
    list-style: none;
    max-width: 600px;
    margin: 0 auto;
}

.conditions li {
    padding: 15px 0;
    padding-left: 40px;
    position: relative;
    font-size: 16px;
    line-height: 1.6;
}

.conditions li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-gold);
    font-weight: bold;
    font-size: 20px;
}

/* 申し込みフローセクション */
.flow-section {
    background: var(--white);
}

.flow-steps {
    max-width: 600px;
    margin: 0 auto;
    position: relative;
}

.flow-step {
    background: var(--light-blue);
    padding: 30px;
    border-radius: 15px;
    margin-bottom: 30px;
    position: relative;
    padding-left: 80px;
}

.flow-step:last-child {
    margin-bottom: 0;
}

.flow-step::before {
    content: attr(data-step);
    position: absolute;
    top: 50%;
    left: 20px;
    transform: translateY(-50%);
    background: var(--primary-gold);
    color: var(--white);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 18px;
}

/* ステップ間の矢印 */
.flow-step:not(:last-child)::after {
    content: "";
    position: absolute;
    bottom: -30px;
    left: 39px;
    width: 2px;
    height: 30px;
    background: var(--primary-gold);
}

.flow-step h4 {
    color: var(--primary-blue);
    margin-bottom: 15px;
    font-size: 20px;
}

.flow-step p {
    color: var(--gray-600);
    line-height: 1.6;
}


/*FAQ*/

.faq-section {
	background: var(--light-blue);
}

.faq-container {
    list-style: none;
    padding: 0;
}

.faq-item {
    border-bottom: 1px solid var(--gray-200); /* 区切り線を入れて視認性アップ */
    padding: 25px 0;
}

.faq-question {
    font-size: 18px;
    font-weight: bold; /* 質問を強調 */
    display: flex;
    align-items: flex-start; /* Qマークとテキストの頭を揃える */
    gap: 15px;
    margin-bottom: 15px; /* 回答との距離 */
}

.faq-answer {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin: 0; /* dt/dd特有のデフォルト余白をリセット */
    color: var(--gray-700);
    line-height: 1.8;
}

/* QとAのラベルデザイン */
.q-label, .a-label {
    flex-shrink: 0; /* ラベルが潰れないように固定 */
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    font-weight: bold;
}

.q-label {
    background-color: var(--primary-blue);
    color: white;
}

.a-label {
    background-color: var(--primary-gold);
    color: white;
}

/* フッター */
.footer {
    background: var(--secondary-blue);
    color: var(--white);
    padding: 60px 0 30px;
}

.footer-cta {
    text-align: center;
    margin-bottom: 50px;
}

.footer-cta h2 {
    font-size: 32px;
    margin-bottom: 20px;
}

.footer-cta-button {
    background: linear-gradient(135deg, var(--primary-gold), var(--dark-gold));
    color: var(--white);
    padding: 20px 50px;
    border-radius: 50px;
    text-decoration: none;
    font-size: 20px;
    font-weight: bold;
    display: inline-block;
    margin-bottom: 15px;
    transition: transform 0.3s;
}

.footer-cta-button:hover {
    transform: translateY(-3px);
}

.footer-notice {
    font-size: 14px;
    color: var(--light-gold);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--white);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: var(--light-gold);
}

.footer-copyright {
    text-align: center;
    font-size: 14px;
    color: var(--light-blue);
    border-top: 1px solid rgba(255,255,255,0.2);
    padding-top: 20px;
}

/* レスポンシブ対応 */
@media (max-width: 1030px) {
    .header-container {
flex-direction: column;
height: auto;
padding: 15px 20px;
    }

    .nav-menu {
margin: 15px 0;
gap: 20px;
flex-wrap: wrap;
justify-content: center;
    }

    .kv-section {
margin-top: 120px;
padding: 50px 0;
    }

    .event-info,
    .conditions {
padding: 30px 20px;
    }

    .event-table th,
    .event-table td {
padding: 12px 10px;
font-size: 14px;
    }

    .flow-step {
padding-left: 60px;
    }

    .flow-step::before {
width: 30px;
height: 30px;
left: 15px;
font-size: 14px;
    }

    .flow-step:not(:last-child)::after {
left: 29px;
    }

    .footer-links {
flex-direction: column;
gap: 15px;
    }
}

/* スムーススクロール */
html {
    scroll-behavior: smooth;
}

/* アクセシビリティ */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* フォーカス表示 */
a:focus,
button:focus {
    outline: 2px solid var(--primary-gold);
    outline-offset: 2px;
}