:root {
    --bg-color: #fdfaf4;
    --text-color: #3e2b1e;
    --brass-color: #cda434;
    --brass-dark: #8a6d1c;
    --wood-color: #4a3525;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Yu Mincho', 'Sawarabi Mincho', serif;
    color: var(--text-color);
    background-color: var(--bg-color);
    background-image: url('https://www.transparenttextures.com/patterns/cream-paper.png');
    overflow-x: hidden;
}

.head{
    font-size: 10px;
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}

.head img{
    max-width: 300px;
}

/* --- ロゴ・ヘッダー（常に中央表示を維持） --- */
#logo-container {
    position: fixed;
    top: 50%; /* 初期は画面中央 */
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 100;
    text-align: center;
    width: 100%;
    transition: all 0.8s cubic-bezier(0.25, 1, 0.5, 1);
    pointer-events: none; /* スクロールを妨げない */
}

.logo-text {
    font-size: 6.5rem;
    letter-spacing: 0.25em;
    color: #fff;
    text-shadow: 0 10px 30px rgba(0,0,0,0.6);
    margin: 0;
    font-family: 'Georgia', serif;
    display: inline-block;
    transition: all 0.8s ease;
}

/* スクロール後のヘッダースタイル */
body.scrolled #logo-container {
    top: 0;
    transform: translate(-50%, 0); /* 横方向の中央(50%)を維持 */
    background-color: rgba(74, 53, 37, 0.98); /* 濃い木目色 */
    border-bottom: 3px solid var(--brass-color); /* 真鍮のライン */
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: auto;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

body.scrolled .logo-text {
    font-size: 2.2rem;
    color: var(--brass-color);
    text-shadow: none;
    letter-spacing: 0.15em;
}

/* --- ヒーローセクション --- */
.hero {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
    background-color: #000;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('./image/main2.jpg') bottom/cover;
    z-index: 1;
    transition: transform 0.1s linear;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(0,0,0,0.3), rgba(0,0,0,0.1));
    z-index: 2;
}

/* --- コンテンツエリア --- */
.content {
    position: relative;
    z-index: 10;
    padding: 150px 20px;
}

.feature {
    max-width: 1100px;
    margin: 0 auto 180px auto;
    display: flex;
    align-items: center;
    gap: 60px;
    opacity: 0;
    transform: translateY(50px);
    transition: all 1.2s ease;
}

.feature.visible {
    opacity: 1;
    transform: translateY(0);
}

.feature:nth-child(even) {
    flex-direction: row-reverse;
}

.feature-img {
    flex: 1.2;
    height: 400px;
    border: 8px solid var(--wood-color);
    outline: 2px solid var(--brass-color);
    box-shadow: 15px 15px 30px rgba(0,0,0,0.2);
    background-size: cover;
    background-position: center;
}

.img-1 { background-image: url('./image/cut_01.gif'); }
.img-2 { background-image: url('./image/cut_02.gif'); }
.img-3 { background-image: url('./image/cut_03.gif'); }
.img-4 { background-image: url('./image/cut_04.gif'); }

.feature-text {
    flex: 1;
}

.feature-text h2 {
    font-size: 1.8rem;
    color: var(--wood-color);
    margin-bottom: 25px;
}

.feature-text h2::after {
    content: "";
    display: block;
    width: 60px;
    height: 2px;
    background: var(--brass-color);
    margin-top: 10px;
}

.feature-text p {
    font-size: 1.05rem;
    line-height: 2;
    text-align: justify;
}

/* --- ダウンロードエリア --- */
.cta {
    text-align: center;
    padding: 120px 20px;
    background-color: var(--wood-color);
    background-image: url('https://www.transparenttextures.com/patterns/dark-leather.png');
    color: #fff;
    border-top: 4px solid var(--brass-color);
}

.btn {
    display: inline-block;
    padding: 18px 50px;
    font-size: 1.2rem;
    color: var(--text-color);
    text-decoration: none;
    background: linear-gradient(135deg, #e5c158, var(--brass-color), var(--brass-dark));
    border-radius: 2px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.5);
    transition: all 0.3s ease;
    font-weight: bold;
}

.btn:hover {
    transform: translateY(-5px);
    filter: brightness(1.2);
}

footer {
    background-color: #1a120b;
    padding: 30px;
    text-align: center;
    color: #666;
}

/* --- 前回のスタイルは維持しつつ以下を追加 --- */

.specs-section {
    max-width: 1000px;
    margin: 0 auto 150px auto;
    padding: 0 20px;
    opacity: 0;
    transform: translateY(30px);
    transition: all 1s ease;
}

.specs-section.visible {
    opacity: 1;
    transform: translateY(0);
}

.specs-title {
    text-align: center;
    font-size: 2.5rem;
    color: var(--wood-color);
    margin-bottom: 50px;
    font-family: 'Yu Mincho', serif;
}

.specs-container {
    display: flex;
    gap: 30px;
    justify-content: center;
    flex-wrap: wrap;
}

.spec-card {
    flex: 1;
    min-width: 320px;
    background: #fff;
    padding: 30px;
    border: 2px solid var(--wood-color);
    box-shadow: 5px 5px 0px var(--brass-color);
    position: relative;
    background-image: url('https://www.transparenttextures.com/patterns/cream-paper.png');
}

/* 推奨スペックは真鍮の縁取りを強調 */
.spec-card.recommended {
    border: 3px solid var(--brass-color);
    box-shadow: 8px 8px 0px var(--wood-color);
    background-color: #fffaf0;
}

.spec-card h3 {
    margin-top: 0;
    color: var(--wood-color);
    border-bottom: 1px solid var(--brass-color);
    padding-bottom: 10px;
    font-size: 1.4rem;
}

.spec-card h3 span {
    display: block;
    font-size: 0.9rem;
    font-weight: normal;
    color: #8a6d1c;
    margin-top: 5px;
}

.spec-card table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

.spec-card th {
    text-align: left;
    width: 30%;
    padding: 10px 5px;
    font-size: 0.85rem;
    color: var(--brass-dark);
    vertical-align: top;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.spec-card td {
    padding: 10px 5px;
    font-size: 0.95rem;
    line-height: 1.4;
}

.spec-card tr:not(:last-child) {
    border-bottom: 1px solid #eee;
}

/* --- 言語切り替えスイッチ --- */
.lang-switcher {
    position: fixed;
    top: 20px;
    right: 30px;
    z-index: 1000;
    font-family: 'Georgia', serif;
    background: rgba(62, 43, 30, 0.1);
    padding: 5px 15px;
    border-radius: 20px;
    backdrop-filter: blur(5px);
    border: 1px solid var(--brass-color);
}

.lang-switcher button {
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: bold;
    opacity: 0.5;
    transition: all 0.3s ease;
    padding: 0 5px;
}

.lang-switcher button.active {
    opacity: 1;
    color: var(--brass-dark);
    text-shadow: 0 0 5px rgba(205, 164, 52, 0.5);
}

.lang-switcher .separator {
    color: var(--brass-color);
    margin: 0 5px;
}

/* スクロール後のスイッチ色調整 */
body.scrolled .lang-switcher {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
}
body.scrolled .lang-switcher button {
    color: #fff;
}
body.scrolled .lang-switcher button.active {
    color: var(--brass-color);
}

/* --- 共通グローバルヘッダー --- */
.site-global-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 45px; /* sonus_correctに合わせたスリムな高さ */
    background-color: #2a1e15; /* ダークな木目色 */
    border-bottom: 1px solid var(--brass-color);
    z-index: 1001; /* 全ての要素より上 */
    display: flex;
    align-items: center;
}

.header-inner {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-home-link {
    text-decoration: none;
    color: var(--brass-color);
    font-family: 'Georgia', serif;
    font-weight: bold;
    font-size: 0.9rem;
    letter-spacing: 0.1em;
    transition: opacity 0.3s;
}

.site-home-link:hover {
    opacity: 0.7;
}

/* 言語切り替えをヘッダー内に最適化 */
.lang-switcher {
    position: static; /* fixedから解除 */
    background: none;
    border: none;
    padding: 0;
    backdrop-filter: none;
}

.lang-switcher button {
    color: #fff; /* ダーク背景に合わせて白に */
    font-size: 0.8rem;
}

/* --- 1. 最上部グローバルロゴエリア (sonus_correct.cssの完全再現) --- */
.head {
    font-size: 10px;
    text-align: center;
    margin-left: auto;
    margin-right: auto;
    padding: 15px 0; /* sonus_correctの余白感に合わせる調整 */
    background-color: #fdfaf4; /* Paintiaの地色に合わせていますが、sonusと同じにするなら #eef0f5 に変更してください */
}

.head img {
    max-width: 300px;
    width: 100%; /* レスポンシブ対応 */
    height: auto;
}

/* --- 2. 言語切り替えスイッチ (右上に固定) --- */
.lang-switcher {
    position: fixed;
    top: 15px;
    right: 20px;
    z-index: 2000;
    font-family: 'Georgia', serif;
    background: rgba(62, 43, 30, 0.2);
    padding: 4px 12px;
    border-radius: 20px;
    backdrop-filter: blur(8px);
    border: 1px solid var(--brass-color);
}

.lang-switcher button {
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: bold;
    opacity: 0.6;
}

.lang-switcher button.active {
    opacity: 1;
    color: var(--brass-dark);
}

/* --- 3. Paintiaロゴのスクロール固定設定 --- */
#logo-container {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 100;
    text-align: center;
    width: 100%;
    transition: all 0.8s cubic-bezier(0.25, 1, 0.5, 1);
    pointer-events: none;
}

/* スクロール後：画面最上部(top:0)に固定 */
body.scrolled #logo-container {
    top: 0;
    transform: translate(-50%, 0);
    background-color: rgba(74, 53, 37, 0.98);
    border-bottom: 2px solid var(--brass-color);
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: auto;
}

body.scrolled .logo-text {
    font-size: 1.8rem;
    color: var(--brass-color);
    text-shadow: none;
}

/* --- ファーストビューのキャッチコピー --- */
.hero-text {
    position: absolute;
    top: 60%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 10;
    text-align: center;
    width: 90%;
}

.hero-text p {
    font-size: 1.8rem;
    color: #fff;
    text-shadow: 0 4px 15px rgba(0,0,0,0.8);
    letter-spacing: 0.15em;
    font-weight: normal;
    margin: 0;
    opacity: 0;
    animation: fadeInText 2s ease forwards 0.5s; /* ロゴの後にふんわり表示 */
}

@keyframes fadeInText {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 英語表示時は少しフォントサイズを調整（script.jsの切り替えに連動） */
body.lang-en .hero-text p {
    font-size: 1.4rem;
    font-family: 'Georgia', serif;
}