/* nito media 共通スタイル
   デザイン確定版：h2=オレンジベタ塗り白字 / strong=蛍光マーカー */
:root {
    --color-bg: #fdfdfd;
    --color-text: #333333;
    --color-text-thin: #999999;
    --color-main: #e67e22;
    --color-main-thin: #fdf3e7;
    --color-border: #e8e8e8;
    --color-gray-bg: #f7f7f7;
    --fz-content: 16px;
    --width-article: 720px;
    --font-jp: "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", sans-serif;
    --font-en: 'Montserrat', sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
    font-family: var(--font-jp);
    font-weight: 400;
    background-color: var(--color-bg);
    color: var(--color-text);
    font-size: var(--fz-content);
    line-height: 1.8;
    letter-spacing: 0.02em;
}

a { color: inherit; text-decoration: none; }

/* ===== Header ===== */
.site-header { background: #fff; border-bottom: 1px solid var(--color-border); }
.site-header__inner {
    max-width: 1140px; margin: 0 auto; padding: 0 24px;
    height: 64px;
    display: flex; align-items: center; justify-content: space-between;
}
.site-logo { font-size: 22px; font-weight: 700; letter-spacing: 0.08em; }
.site-logo small {
    font-size: 11px; font-weight: 500; color: var(--color-text-thin);
    margin-left: 10px; letter-spacing: 0.05em;
}
@media (max-width: 600px) { .site-logo small { display: none; } }
.gnav { display: flex; align-items: center; gap: 28px; font-size: 14px; font-weight: 500; }
.gnav a:hover { color: var(--color-main); }
.gnav .nav-cta {
    background: var(--color-main); color: #fff;
    padding: 9px 22px; border-radius: 3px; font-weight: 700;
    transition: opacity .2s;
}
.gnav .nav-cta:hover { opacity: .85; color: #fff; }
@media (max-width: 768px) { .gnav a:not(.nav-cta) { display: none; } }

/* ===== Breadcrumb ===== */
.breadcrumb {
    max-width: var(--width-article); margin: 0 auto; padding: 18px 24px 0;
    font-size: 12px; color: var(--color-text-thin);
}
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb .sep { margin: 0 8px; }

/* ===== Article ===== */
.article { max-width: var(--width-article); margin: 0 auto; padding: 24px 24px 0; }

.post-meta { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; }
.post-cat {
    font-size: 11px; font-weight: 700; color: var(--color-main);
    border: 1px solid var(--color-main); border-radius: 2px;
    padding: 2px 10px; letter-spacing: 0.05em;
}
.post-date { font-size: 12.5px; color: var(--color-text-thin); }
.post-title {
    font-size: 27px; font-weight: 700; line-height: 1.55;
    letter-spacing: 0.02em; margin-bottom: 22px;
}
@media (max-width: 768px) { .post-title { font-size: 22px; } }

.post-eyecatch {
    width: 100%; aspect-ratio: 1.91 / 1; border-radius: 4px;
    background-color: #eceff1;
    background-size: cover; background-position: center;
    display: flex; align-items: center; justify-content: center;
    color: #b0bec5; font-family: var(--font-en); font-size: 13px; letter-spacing: .15em;
    margin-bottom: 40px;
    overflow: hidden;
}
.post-eyecatch img { width: 100%; height: 100%; object-fit: cover; }

/* ===== 固定デザインのアイキャッチ（画像未指定時・文言だけ差し替え） =====
   参考: LANY風フレーム型を nito オレンジで。基本形1パターン。 */
.post-eyecatch--designed {
    background:
        linear-gradient(135deg, #ff9f43 0%, #e67e22 55%, #cf6a12 100%);
    position: relative; overflow: hidden;
    padding: 22px;
}
/* 内側のフレーム */
.ec-frame {
    position: relative; z-index: 1;
    width: 100%; height: 100%;
    border: 1.5px solid rgba(255,255,255,.55);
    border-radius: 4px;
    padding: 26px 24px 22px;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    text-align: center; color: #fff;
}
.ec-tag {
    background: var(--color-text); color: #fff;
    font-size: 14px; font-weight: 700; letter-spacing: .03em;
    padding: 5px 18px; border-radius: 30px; margin-bottom: 20px;
}
.ec-headline {
    font-family: var(--font-jp);
    font-size: 33px; font-weight: 900; line-height: 1.45; letter-spacing: .01em;
    border-bottom: 3px solid rgba(255,255,255,.85);
    padding-bottom: 10px;
    max-width: 100%;
}
.ec-sub {
    font-size: 18px; font-weight: 700; line-height: 1.6; margin-top: 16px;
    max-width: 92%;
}
.ec-brand {
    font-size: 19px; font-weight: 700; letter-spacing: .1em; margin-top: 20px; opacity: .92;
}
@media (max-width: 600px) {
    .ec-headline { font-size: 23px; }
    .ec-sub { font-size: 15px; }
    .ec-frame { padding: 22px 16px; }
}

/* カード用の縮小版フレーム */
.card-thumb--designed {
    background: linear-gradient(135deg, #ff9f43 0%, #e67e22 60%, #cf6a12 100%);
    position: relative; overflow: hidden; padding: 12px;
}
.ec-frame--mini {
    border-width: 1px; padding: 14px 12px;
}
.ec-frame--mini .ec-tag { font-size: 9.5px; padding: 2px 10px; margin-bottom: 8px; }
.ec-frame--mini .ec-headline {
    font-size: 15px; line-height: 1.45; border-bottom-width: 2px; padding-bottom: 5px;
    display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.ec-frame--mini .ec-brand { font-size: 11px; margin-top: 10px; }

.post-content p { margin-bottom: 1.7em; }

/* ===== Key Takeaways（この記事のポイント） ===== */
.takeaways {
    background: var(--color-main-thin);
    border: 1px solid #f2d9bd;
    border-radius: 8px;
    padding: 24px 30px 26px;
    margin: 0 0 40px;
}
.takeaways__ttl {
    font-size: 15px; font-weight: 700; color: var(--color-main);
    display: flex; align-items: center; gap: 8px; margin-bottom: 14px;
}
.takeaways__ttl::before {
    content: ""; width: 4px; height: 18px; border-radius: 2px; background: var(--color-main);
}
.takeaways__body ul { margin: 0; padding-left: 1.3em; }
.takeaways__body li { margin-bottom: 8px; font-size: 15px; line-height: 1.8; }
.takeaways__body li::marker { color: var(--color-main); }
.takeaways__body strong {
    background: linear-gradient(transparent 65%, #ffe3c2 65%); font-weight: 700;
}

/* ===== 目次 ===== */
.toc {
    border: 1px solid var(--color-border);
    background: #fff;
    border-radius: 4px;
    padding: 24px 30px 20px;
    margin: 0 auto 48px;
    max-width: 560px;
}
.toc__ttl {
    text-align: center; font-weight: 700; font-size: 15px;
    letter-spacing: 0.2em; margin-bottom: 14px;
}
.toc ol {
    list-style: none; counter-reset: toc;
    border-top: 1px dashed var(--color-border);
    padding: 8px 0 0; margin: 0;
}
.toc li {
    counter-increment: toc;
    font-size: 14px; font-weight: 500;
    padding: 7px 0; margin: 0;
}
.toc li::before {
    content: counter(toc) ".";
    color: var(--color-main); font-family: var(--font-en); font-weight: 700;
    margin-right: 10px;
}
.toc li.toc-h3 { padding-left: 26px; font-weight: 400; font-size: 13.5px; counter-increment: none; }
.toc li.toc-h3::before { content: "－"; color: var(--color-text-thin); }
.toc a:hover { text-decoration: underline; }

/* ===== 見出し ===== */
.post-content h2 {
    font-size: 21px; font-weight: 700; line-height: 1.5;
    background: var(--color-main);
    color: #fff;
    padding: 13px 20px;
    border-radius: 3px;
    margin: 3em 0 1.2em;
}
.post-content h3 {
    font-size: 18px; font-weight: 700; line-height: 1.5;
    border-bottom: 2px solid var(--color-border);
    position: relative;
    padding-bottom: 10px;
    margin: 2.4em 0 1em;
}
.post-content h3::after {
    content: ""; position: absolute; left: 0; bottom: -2px;
    width: 64px; height: 2px; background: var(--color-main);
}

/* ===== 本文装飾 ===== */
/* mdの **太字** は蛍光マーカー強調として表示 */
.post-content strong {
    font-weight: 700;
    background: linear-gradient(transparent 65%, #ffe3c2 65%);
}
.post-content ul, .post-content ol { margin: 0 0 1.7em; padding-left: 1.5em; }
.post-content li { margin-bottom: .4em; }
.post-content a { color: var(--color-main); text-decoration: underline; }
.post-content img { max-width: 100%; border-radius: 4px; }
.post-content code {
    background: var(--color-gray-bg); border: 1px solid var(--color-border);
    border-radius: 3px; padding: 1px 6px; font-size: 14px;
}

/* ポイント枠 */
.box-point {
    border: 1.5px solid var(--color-main);
    border-radius: 4px;
    margin: 2em 0;
    background: #fff;
}
.box-point__ttl {
    display: inline-block;
    background: var(--color-main); color: #fff;
    font-size: 12.5px; font-weight: 700; letter-spacing: .1em;
    padding: 4px 16px;
    border-radius: 0 0 4px 0;
}
.box-point__body { padding: 14px 22px 18px; }
.box-point__body p { margin-bottom: 0; }

/* 引用 */
.post-content blockquote {
    background: var(--color-gray-bg);
    border-left: 3px solid #ccc;
    padding: 18px 24px;
    margin: 2em 0;
    color: #555;
    font-size: 15px;
}
.post-content blockquote p { margin-bottom: 0; }

/* テーブル */
.post-content table {
    width: 100%; border-collapse: collapse; margin: 2em 0;
    font-size: 14.5px; background: #fff;
}
.post-content th, .post-content td {
    border: 1px solid var(--color-border);
    padding: 12px 16px; text-align: left; vertical-align: top;
}
.post-content th { background: var(--color-main-thin); font-weight: 700; white-space: nowrap; }

/* ===== ブログパーツ: PRパート（記事本文中に埋め込む共通CTA） ===== */
.bp-cta {
    border: 1px solid var(--color-main);
    border-radius: 8px;
    background: linear-gradient(180deg, #fffaf4 0%, #fff 100%);
    margin: 3em 0;
    overflow: hidden;
}
.bp-cta__body { padding: 30px 32px 32px; }
/* 見出しは大きく目立たせる */
.bp-cta__eyebrow {
    font-size: 21px; font-weight: 900; line-height: 1.5; letter-spacing: 0.01em;
    color: var(--color-text); margin-bottom: 14px;
}
.bp-cta__eyebrow strong,
.bp-cta__eyebrow .accent { color: var(--color-main); }
.bp-cta__lead { font-size: 15px; line-height: 1.9; margin-bottom: 18px; }
.bp-cta__points {
    list-style: none; margin: 0 0 24px; padding: 0;
    display: grid; gap: 8px;
}
.bp-cta__points li {
    position: relative; padding-left: 26px; font-size: 14px; margin: 0;
}
.bp-cta__points li::before {
    content: "✓"; position: absolute; left: 0; top: 0;
    color: var(--color-main); font-weight: 700;
}
.bp-cta__points strong {
    background: none; font-weight: 700; color: var(--color-main);
}
.bp-cta__actions { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
/* .post-content a に負けないよう .bp-cta で詳細度を上げる */
.bp-cta .bp-cta__btn {
    display: inline-block; background: var(--color-main); color: #fff;
    font-weight: 700; font-size: 15px; padding: 14px 40px; border-radius: 4px;
    transition: opacity .2s; text-decoration: none;
}
.bp-cta .bp-cta__btn:hover { opacity: .85; text-decoration: none; }
.bp-cta .bp-cta__link {
    font-size: 14px; font-weight: 700; color: var(--color-main); text-decoration: none;
}
.bp-cta .bp-cta__link:hover { text-decoration: underline; }
@media (max-width: 600px) {
    .bp-cta__body { padding: 24px 20px 26px; }
    .bp-cta__eyebrow { font-size: 18px; }
    .bp-cta .bp-cta__btn { width: 100%; text-align: center; }
}

/* ===== CTA ===== */
.post-cta {
    border: 1px solid var(--color-border);
    background: #fff;
    border-radius: 4px;
    text-align: center;
    padding: 36px 30px;
    margin: 56px 0 0;
}
.post-cta__label {
    font-family: var(--font-en); font-size: 11px; font-weight: 700;
    letter-spacing: .2em; color: var(--color-main); margin-bottom: 10px;
}
.post-cta__ttl { font-size: 19px; font-weight: 700; margin-bottom: 8px; }
.post-cta__desc { font-size: 14px; color: #666; margin-bottom: 22px; }
.post-cta__btn {
    display: inline-block;
    background: var(--color-main); color: #fff;
    font-weight: 700; font-size: 15px;
    padding: 13px 48px; border-radius: 3px;
    transition: opacity .2s;
}
.post-cta__btn:hover { opacity: .85; }

/* ===== 著者 ===== */
.author {
    display: flex; gap: 18px; align-items: flex-start;
    border-top: 1px solid var(--color-border);
    margin-top: 48px; padding: 28px 4px 0;
}
.author__avatar {
    width: 64px; height: 64px; border-radius: 50%;
    background-color: #eceff1; background-size: cover; background-position: center;
    flex-shrink: 0;
}
.author__label { font-size: 11px; color: var(--color-text-thin); margin-bottom: 2px; }
.author__name { font-size: 15px; font-weight: 700; margin-bottom: 3px; }
.author__role { font-size: 12px; font-weight: 700; color: var(--color-main); margin-bottom: 8px; }
.author__bio { font-size: 13px; color: #666; line-height: 1.7; }

/* ===== 関連記事 ===== */
.related { max-width: 960px; margin: 72px auto 0; padding: 0 24px; }
.related__ttl { font-size: 18px; font-weight: 700; text-align: center; margin-bottom: 28px; }
.related__ttl span {
    display: inline-block; border-bottom: 2px solid var(--color-main);
    padding: 0 16px 8px;
}
.related__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
@media (max-width: 768px) { .related__grid { grid-template-columns: 1fr; } }
.rel-card { display: block; }
.rel-card__thumb {
    aspect-ratio: 1.91/1; border-radius: 4px;
    background-color: #eceff1; background-size: cover; background-position: center;
    display: flex; align-items: center; justify-content: center;
    color: #b0bec5; font-family: var(--font-en); font-size: 11px; letter-spacing: .15em;
    margin-bottom: 10px;
    transition: opacity .2s;
    overflow: hidden;
}
.rel-card:hover .rel-card__thumb { opacity: .8; }
.rel-card__date { font-size: 11.5px; color: var(--color-text-thin); margin-bottom: 4px; }
.rel-card__ttl { font-size: 14px; font-weight: 500; line-height: 1.6; }
.rel-card:hover .rel-card__ttl { color: var(--color-main); }

/* ===== 一覧ページ ===== */
.list-hero { max-width: 960px; margin: 0 auto; padding: 48px 24px 8px; text-align: center; }
.list-hero__en {
    font-family: var(--font-en); font-size: 12px; font-weight: 700;
    letter-spacing: .25em; color: var(--color-main); margin-bottom: 8px;
}
.list-hero__ttl { font-size: 26px; font-weight: 700; margin-bottom: 10px; }
.list-hero__desc { font-size: 14px; color: #666; }

.cat-filter {
    max-width: 960px; margin: 28px auto 0; padding: 0 24px;
    display: flex; flex-wrap: wrap; gap: 10px; justify-content: center;
}
.cat-filter a {
    font-size: 13px; font-weight: 500;
    border: 1px solid var(--color-border); border-radius: 30px;
    padding: 6px 18px; background: #fff;
    transition: all .2s;
}
.cat-filter a:hover, .cat-filter a.is-active {
    border-color: var(--color-main); color: var(--color-main);
}

.post-list {
    max-width: 960px; margin: 40px auto 0; padding: 0 24px;
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px 24px;
}
@media (max-width: 768px) { .post-list { grid-template-columns: 1fr; } }

/* ===== Footer ===== */
.site-footer {
    border-top: 1px solid var(--color-border);
    background: #fdfdfd;
    margin-top: 88px;
    padding: 40px 24px;
    text-align: center;
}
.site-footer .f-logo { font-size: 18px; font-weight: 700; letter-spacing: .08em; margin-bottom: 14px; display: block; }
.f-nav { display: flex; justify-content: center; gap: 24px; font-size: 13px; color: #666; margin-bottom: 20px; flex-wrap: wrap; }
.f-nav a:hover { color: var(--color-main); }
.f-copy { font-size: 11px; color: #bbb; }