@charset "UTF-8";

/* 基本設定 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    line-height: 1.8;
    color: #333;
    background-color: #fcfaf5;
    font-size: 16px;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

.flex {
    display: flex;
    align-items: center;
    gap: 40px;
}

/* ヘッダー */
header {
    background-color: #5d8a6a;
    color: #fff;
    padding: 60px 0;
    text-align: center;
}

header h1 {
    font-size: 2.4rem;
    margin-bottom: 10px;
}

/* 導入セクション */
.intro {
    padding: 80px 0;
    background-color: #fff;
}

.intro-text h2 {
    color: #d35400;
    font-size: 1.8rem;
    margin-bottom: 25px;
    border-left: 5px solid #d35400;
    padding-left: 15px;
}

.check-list {
    list-style: none;
}

.check-list li {
    position: relative;
    padding-left: 35px;
    margin-bottom: 15px;
}

.check-list li::before {
    content: '✔';
    position: absolute;
    left: 0;
    color: #5d8a6a;
    font-size: 1.5rem;
}

.intro-img img {
    width: 100%;
    border-radius: 20px;
}

/* 詳細セクション共通 */
.features {
    padding: 80px 0;
    background-color: #eef2eb;
}

.section-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 60px;
    color: #2c3e50;
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 40px;
    margin-bottom: 60px;
    background: #fff;
    padding: 30px;
    border-radius: 15px;
}

.detail-item.reverse {
    flex-direction: row-reverse;
}

.detail-content {
    flex: 1.2;
}

.step-num {
    display: inline-block;
    color: #5d8a6a;
    font-size: 2rem;
    font-weight: bold;
    border-bottom: 3px solid #5d8a6a;
    margin-bottom: 10px;
}

.detail-content h4 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #2c3e50;
}

.detail-img {
    flex: 1;
}

.detail-img img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: 10px;
}

/* アフィリエイトボタン（小） */
.affiliate-btn-s {
    display: inline-block;
    margin-top: 20px;
    background-color: #e67e22;
    color: #fff;
    text-decoration: none;
    padding: 10px 25px;
    border-radius: 30px;
    font-weight: bold;
    transition: 0.2s;
}

.affiliate-btn-s:hover {
    background-color: #d35400;
}

/* CTA */
.cta {
    padding: 80px 0;
    text-align: center;
    background-color: #5d8a6a;
    color: #fff;
}

.btn {
    display: inline-block;
    margin-top: 25px;
    background-color: #e67e22;
    color: #fff;
    padding: 20px 40px;
    text-decoration: none;
    font-size: 1.4rem;
    font-weight: bold;
    border-radius: 50px;
}

footer {
    padding: 30px 0;
    text-align: center;
    background-color: #2c3e50;
    color: #fff;
}

/* レスポンシブ */
@media (max-width: 768px) {
    .flex, .detail-item, .detail-item.reverse {
        flex-direction: column;
    }
    header h1 { font-size: 1.8rem; }
    .detail-img img { height: auto; }
}