/* --- 基本設定 --- */
:root {
    --main-color: #f0f0f0; 
    --accent-color: #a45353;
    --bg-color: #2b2b2b;
    --light-gray: #444444;
    --card-bg: #3c3c3c;
    --header-text: #333333; 
}
body {
    font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
    line-height: 1.6;
    color: var(--main-color);
    background-color: var(--bg-color);
    margin: 0;
    padding: 0;
}
h1, h2, h3 {
    font-family: "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", serif;
    letter-spacing: 0.1em;
}
a {
    text-decoration: none;
    color: inherit;
    transition: 0.3s;
}
ul {
    list-style: none;
    padding: 0;
}
img {
    max-width: 100%;
    height: auto;
}

/* --- 共通セクションスタイル --- */
section {
    padding: 80px 20px;
    max-width: 1000px;
    margin: 0 auto;
    text-align: center; /* 🚨 親要素である sectionタグ全体に中央揃えを適用 */
}

/* --- セクションタイトル --- */
.section-title {
    font-size: 28px;
    font-weight: bold;
    /* text-align: center; */ /* 親要素(section)で設定済みのため不要 */
    color: #eee;
    margin-bottom: 40px;
    position: relative;
    display: inline-block; /* 🚨 文字幅に合わせるための設定 */
}
.section-title::after {
    content: '';
    display: block;
    width: 100%; 
    height: 3px;
    background-color: var(--main-color);
    bottom: -10px;
}

/* --- ヘッダー --- */
header {
    background-color: #ffffff; 
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--light-gray);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0,0,0,0.5);
    color: var(--header-text); 
}
.logo-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0; 
}
.logo-area img {
    height: 40px; 
    width: auto;
}
.logo-area .kanji-logo {
    height: 40px; 
    margin-bottom: 2px;
}
.logo-area .number-logo {
    height: 30px; 
    padding: 1px;
}
nav ul {
    display: flex;
    gap: 30px;
}
nav ul li a {
    font-weight: bold; /* 文字を太くする */
}
nav li a:hover {
    color: var(--accent-color);
}
.menu-toggle {
    display: none;
    font-size: 24px;
    cursor: pointer;
}

/* --- メインビジュアル --- */
.hero {
    height: 60vh;
    background-image: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.4)), url('../images/芝生.jpg');
    background-size: cover;
    background-position: center;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #fff;
    text-align: center;
}
.hero-content h2 {
    font-size: 42px;
    margin-bottom: 20px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.5);
}
.hero-content p {
    font-size: 18px;
    margin-bottom: 30px;
}

/* --- 事業内容 --- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}
.service-card {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 4px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
    text-align: center;
}
.service-card h3 {
    margin-bottom: 15px;
    color: var(--accent-color);
}

/* --- 料金 --- */
.price-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card-bg);
}
.price-table th, .price-table td {
    border: 1px solid var(--light-gray);
    padding: 20px;
    text-align: left;
}
.price-table th {
    background-color: #4a4a4a;
    width: 30%;
    font-weight: normal;
}

/* --- 過去案件（ご利用イメージ） --- */
.works-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}
.work-item {
    background: var(--card-bg);
    border: 1px solid var(--light-gray);
}
.work-image {
    width: 100%;
    height: 200px;
    background-size: cover;
    background-position: center;
    display: block; 
}
.work-desc {
    padding: 20px;
}
/* ご利用イメージ 詳細 */
.example-detail {
    margin: 0;
    padding: 0;
}
.example-detail dt {
    font-weight: bold;
    color: var(--accent-color);
    margin-top: 10px;
    padding-bottom: 2px;
    border-bottom: 1px dashed var(--light-gray);
    font-size: 14px;
}
.example-detail dd {
    margin-left: 0;
    margin-bottom: 10px;
    padding-top: 5px;
    font-size: 15px;
}

/* その他のご依頼例 (other-examples-list) */
.other-examples-list {
    max-width: 800px;
    margin: 60px auto 0;
    padding: 30px 40px;
    background-color: var(--card-bg);
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
    text-align: center;
}
.other-examples-list h3 {
    color: var(--accent-color);
    font-size: 20px;
    margin-bottom: 25px;
    border-bottom: 2px solid var(--accent-color);
    display: inline-block;
    padding-bottom: 5px;
}
.example-list {
    text-align: left;
    margin: 0 auto 20px;
    padding: 0 20px;
    list-style-type: none;
}
.example-list li {
    padding: 8px 0;
    font-size: 16px;
    border-bottom: 1px dotted var(--light-gray);
    position: relative;
}
.example-list li::before {
    content: "▶";
    color: var(--accent-color);
    font-size: 10px;
    margin-right: 10px;
    position: absolute;
    left: -10px;
    top: 13px;
}
.appeal-text {
    font-weight: bold;
    margin-top: 30px;
    font-size: 17px;
}

/* --- お問い合わせ --- */
.contact-container {
    text-align: center;
    background: var(--card-bg); 
    padding: 50px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2); 
}
/* 主要な問い合わせボタン (電話・メール・LINE) の調整 */
.btn {
    display: inline-flex;
    align-items: center; 
    justify-content: center; 
    padding: 15px;
    border-radius: 0; 
    font-weight: bold;
    font-size: 18px;
    min-width: 0; 
    height: auto; 
    background: none; 
    border: none; 
    position: relative; 
    overflow: visible; 
}
.contact-main-buttons {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-bottom: 40px;
    flex-wrap: wrap;
    align-items: center; 
}
.btn-tel, .btn-mail, .btn-line-contact {
    background: none; 
    border: none; 
    color: var(--main-color);
}
.btn img {
    width: 60px; 
    height: 60px;
    object-fit: contain; 
    margin: 0;
    position: absolute; 
    top: 50%; 
    left: 50%; 
    transform: translate(-50%, -50%); 
    border-radius: 0; 
}
.btn span {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
}
.sns-links {
    margin-top: 30px;
}
.sns-links p {
    margin-bottom: 15px;
    font-weight: bold;
}
.sns-icons {
    display: flex;
    justify-content: center;
    gap: 20px;
}
.sns-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background-color: black;
}
.sns-btn img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 0;
}
.sns-x { background-color: #000; }
.sns-youtube { background-color: #FF0000; }

/* --- フッター --- */
footer {
    background-color: #1a1a1a; 
    color: #aaa;
    text-align: center;
    padding: 30px;
    font-size: 12px;
}
.footer-info {
    margin-bottom: 5px;
    padding-bottom: 10px;
    border-bottom: 1px solid #333; 
}
.footer-info .company-name,
.footer-info .location {
    font-size: 13px;
    color: #999;
    margin: 0;
    padding: 0;
    font-weight: normal;
}

/* ================================================= */
/* === 📱 レスポンシブスタイル (Media Queries) === */
/* ================================================= */

/* --- 768px 以下 (タブレット・スマホ) --- */
@media (max-width: 768px) {
    /* ヘッダー・ナビゲーション調整 */
    header { padding: 15px; }
    .logo-area img { height: 30px; }
    .logo-area .number-logo { height: 20px; }
    
    /* ハンバーガーメニューの表示・非表示 */
    nav { display: none; }
    nav.active { 
        display: block; 
        background-color: #ffffff; /* スマホメニューの背景色 */
        width: 100%;
        position: absolute;
        top: 60px;
        left: 0;
        z-index: 999; /* ヘッダーの下に隠れないように */
    }
    .menu-toggle { display: block; }
    .hero h2 { font-size: 28px; }

    /* メニュー項目の縦並びとスタイルの調整 */
    nav ul {
        display: block; /* 縦書きを直し、縦並びにする */
        text-align: center;
        padding: 0;
    }
    nav ul li {
        border-bottom: 1px solid #eeeeee; /* 項目間に仕切り線 */
    }
    nav ul li a {
        display: block; 
        padding: 15px 0; /* 上下の余白を小さくして間隔を詰める */
        color: var(--header-text); 
        font-weight: bold;