/* 基本スタイル */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    margin: 0;
    background-color: #000;
    color: #fff;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

/* ヘッダー */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background-color: #000;
}

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

.header .logo {
    display: flex;
    align-items: center;
    font-weight: bold;
    font-size: 24px;
}

.header .logo img {
    height: 60px;
    margin-right: 10px;
}

.header .language-selector {
    font-size: 14px;
    text-align: right;
    line-height: 1.5;
}

.header .language-selector a {
    color: #fff;
    text-decoration: none;
    font-weight: bold;
}

/* メインコンテンツ */
.main-content {
    background-color: #fff;
    color: #000;
    padding: 50px 20px;
    text-align: center;
}

.main-content h1 {
    font-size: 32px;
    color: white;
    background-color: #47a97e;
    padding: 20px;
}

.main-content .image-wrapper img {
    max-width: 100%;
    height: auto;
}

.features {
    text-align: center;
    margin: 0px auto;
    max-width: 500px;
    line-height: 2;
    font-size: 18px;
}

.features ul {
    list-style-type: none;
    padding-left: 20px;
}

.features ul li {
    width: 100%;
    margin-bottom: 30px;
    color: white;
    background-color: #47a97e;
    font-weight: bold;
    font-size: 24px;
}

.app-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 50px;
}

/* トレード3ステップ */
.trade-steps {
    background-color: #fff;
    color: #000;
    padding: 50px 20px;
    text-align: center;
}

.trade-steps h2 {
    color: white;
    background-color: #47a97e;
    padding: 20px;
}

.step {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 20px;
    text-align: left;
}

.step .number {
    width: 40px;
    height: 40px;
    background-color: #47a97e;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    flex-shrink: 0;
}

.step-content {
    flex-grow: 1;
}

.step-content h3 {
    margin: 0;
    font-size: 18px;
}

.step-content p {
    margin: 5px 0 0;
    font-size: 14px;
    color: #666;
}

/* フッター */
.footer {
    background-color: #000;
    color: #fff;
    padding: 40px 20px;
    text-align: center;
}

.footer .logo {
    align-items: center;
    width: 260px;
    display: inline-flex;
    font-size: 24px;
}

.footer .logo div {
    font-weight: bold;
    padding-top: 15px;
}

.footer .logo img {
    height: 60px;
    float: left;
    margin: 0px 10px;
}

.footer .footer-links a {
    color: #fff;
    text-decoration: none;
    margin: 0 10px;
    font-size: 14px;
}

.footer .copyright {
    margin-top: 20px;
    font-size: 12px;
    color: #ccc;
}

/* レスポンシブ対応 */
@media (max-width: 600px) {
    .header {
        flex-direction: column;
        text-align: center;
    }

    .header .logo, .header .language-selector {
        margin-bottom: 10px;
    }

    .step {
        flex-direction: column;
        text-align: center;
    }
}