/* ===================================
   コラムページ用スタイル
   =================================== */

/* 基本設定（メインサイトと統一） */
:root {
    --color-primary: #2D5016;
    --color-cream: #FFF8DC;
    --color-beige: #F5E6D3;
    --color-light-green: #88B04B;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-white: #ffffff;
    --font-main: 'Yu Gothic', '游ゴシック', YuGothic, 'Hiragino Kaku Gothic ProN', 'ヒラギノ角ゴ ProN W3', sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    color: var(--color-text);
    line-height: 1.8;
    background-color: var(--color-white);
}

.column-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 20px;
}

/* ヘッダー */
.column-header {
    background: linear-gradient(135deg, var(--color-primary), var(--color-light-green));
    color: var(--color-white);
    padding: 2rem 20px;
    text-align: center;
    margin-bottom: 2rem;
}

.column-header h1 {
    font-size: clamp(1.5rem, 4vw, 2rem);
    margin-bottom: 0.5rem;
}

.column-header .subtitle {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* インスタカルーセル風セクション */
.carousel-section {
    background-color: var(--color-white);
    border-radius: 15px;
    padding: 2.5rem 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    position: relative;
}

.carousel-section::before {
    content: attr(data-slide);
    position: absolute;
    top: 15px;
    right: 15px;
    background-color: var(--color-primary);
    color: var(--color-white);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.9rem;
}

.carousel-section.slide-1 {
    background: linear-gradient(135deg, var(--color-cream), var(--color-beige));
}

.carousel-section.slide-2 {
    background-color: var(--color-white);
    border-left: 5px solid var(--color-primary);
}

.carousel-section.slide-3 {
    background: linear-gradient(135deg, var(--color-beige), var(--color-cream));
}

.carousel-section.slide-4 {
    background: linear-gradient(135deg, var(--color-primary), var(--color-light-green));
    color: var(--color-white);
}

.carousel-section.slide-4 h2,
.carousel-section.slide-4 h3 {
    color: var(--color-white);
}

/* セクションタイトル */
.section-title {
    font-size: clamp(1.3rem, 3vw, 1.6rem);
    color: var(--color-primary);
    margin-bottom: 1.5rem;
    font-weight: bold;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid var(--color-light-green);
}

.carousel-section.slide-4 .section-title {
    color: var(--color-white);
    border-bottom-color: var(--color-white);
}

/* 本文 */
.section-content {
    font-size: 1rem;
    line-height: 1.9;
    margin-bottom: 1.5rem;
}

.section-content p {
    margin-bottom: 1rem;
}

.section-content ul,
.section-content ol {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.section-content li {
    margin-bottom: 0.5rem;
}

/* 強調ボックス */
.highlight-box {
    background-color: var(--color-white);
    padding: 1.5rem;
    border-radius: 10px;
    margin: 1.5rem 0;
    border-left: 5px solid var(--color-primary);
}

.carousel-section.slide-1 .highlight-box {
    background-color: rgba(255, 255, 255, 0.8);
}

.carousel-section.slide-4 .highlight-box {
    background-color: rgba(255, 255, 255, 0.95);
    color: var(--color-text);
}

/* チェックリスト */
.checklist {
    list-style: none;
    margin-left: 0;
}

.checklist li {
    padding-left: 1.8rem;
    position: relative;
    margin-bottom: 0.8rem;
}

.checklist li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-light-green);
    font-weight: bold;
    font-size: 1.2rem;
}

/* CTAボタン */
.cta-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 2rem;
}

.cta-button {
    display: block;
    text-align: center;
    padding: 1.2rem 2rem;
    border-radius: 50px;
    font-weight: bold;
    font-size: 1.05rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-decoration: none;
}

.cta-button.primary {
    background-color: var(--color-white);
    color: var(--color-primary);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.cta-button.secondary {
    background-color: #06C755;
    color: var(--color-white);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

/* 注意書き */
.disclaimer {
    font-size: 0.85rem;
    color: var(--color-text-light);
    padding: 1rem;
    background-color: var(--color-cream);
    border-radius: 8px;
    margin-top: 2rem;
    line-height: 1.6;
}

/* 戻るリンク */
.back-link {
    display: inline-block;
    margin: 2rem 0;
    color: var(--color-primary);
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s ease;
}

.back-link:hover {
    color: var(--color-light-green);
}

.back-link::before {
    content: '← ';
}

/* エビデンス引用 */
.evidence {
    font-size: 0.9rem;
    color: var(--color-text-light);
    padding: 1rem;
    background-color: rgba(255, 255, 255, 0.8);
    border-left: 3px solid var(--color-light-green);
    margin: 1rem 0;
    font-style: italic;
}

/* アイコン */
.icon {
    font-size: 2rem;
    display: inline-block;
    margin-right: 0.5rem;
}

/* レスポンシブ */
@media (max-width: 768px) {
    .column-container {
        padding: 1rem 15px;
    }

    .column-header {
        padding: 1.5rem 15px;
    }

    .carousel-section {
        padding: 2rem 1.5rem;
    }

    .cta-buttons {
        gap: 0.8rem;
    }

    .cta-button {
        padding: 1rem 1.5rem;
        font-size: 1rem;
    }
}