.blog-index { max-width: 1200px; margin: 0 auto; padding: clamp(40px, 6vw, 80px) clamp(20px, 5vw, 60px); }
.blog-index-head { text-align: center; max-width: 720px; margin: 0 auto clamp(40px, 6vw, 80px); }
.blog-index-head h1 { font-family: 'Sora'; font-size: clamp(2rem, 4.5vw, 3.4rem); font-weight: 900; color: var(--kiey-indigo); letter-spacing: -0.02em; line-height: 1.05; margin: 18px 0 16px; }
.blog-index-head p { color: var(--text-muted); font-size: 1.1rem; }

.blog-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 24px; }
.blog-card {
  display: block; padding: 32px; border-radius: var(--radius-lg);
  background: #fff; border: 1px solid var(--border);
  transition: all .3s var(--ease);
}
.blog-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: rgba(42,171,228,0.3); }
.blog-card-tag { display: inline-block; font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; font-weight: 700; color: var(--kiey-cyan-dark); background: var(--kiey-gradient-soft); padding: 5px 12px; border-radius: 999px; margin-bottom: 16px; }
.blog-card h2 { font-family: 'Sora'; font-size: 1.3rem; font-weight: 800; color: var(--kiey-indigo); letter-spacing: -0.015em; line-height: 1.2; margin-bottom: 12px; }
.blog-card p { color: var(--text-muted); font-size: 0.98rem; line-height: 1.6; margin-bottom: 16px; }
.blog-card-meta { font-size: 0.85rem; color: var(--text-muted); }

/* ----- Blog post article ----- */
.blog-post { max-width: 740px; margin: 0 auto; padding: clamp(40px, 6vw, 80px) clamp(20px, 5vw, 40px) clamp(60px, 8vw, 120px); }
.blog-post-head { text-align: center; margin-bottom: 48px; }
.blog-post-head .tag { display: inline-block; font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase; font-weight: 700; color: var(--kiey-cyan-dark); background: var(--kiey-gradient-soft); padding: 6px 14px; border-radius: 999px; margin-bottom: 20px; }
.blog-post-head h1 { font-family: 'Sora'; font-size: clamp(2rem, 4.5vw, 3.2rem); font-weight: 900; color: var(--kiey-indigo); letter-spacing: -0.02em; line-height: 1.1; margin-bottom: 18px; }
.blog-post-head .lede { font-size: 1.18rem; color: var(--text-muted); line-height: 1.55; max-width: 620px; margin: 0 auto 28px; }
.blog-post-byline { display: flex; justify-content: center; gap: 20px; font-size: 0.9rem; color: var(--text-muted); }
.blog-post-byline strong { color: var(--kiey-indigo); }

.blog-body h2 { font-family: 'Sora'; font-size: clamp(1.4rem, 2.4vw, 1.8rem); font-weight: 800; color: var(--kiey-indigo); letter-spacing: -0.015em; margin: 40px 0 16px; }
.blog-body h3 { font-family: 'Sora'; font-size: 1.2rem; font-weight: 700; color: var(--kiey-indigo); margin: 28px 0 12px; }
.blog-body p { color: var(--text); line-height: 1.75; margin-bottom: 18px; font-size: 1.05rem; }
.blog-body ul, .blog-body ol { padding-left: 24px; margin: 12px 0 22px; }
.blog-body li { color: var(--text); line-height: 1.7; margin-bottom: 10px; font-size: 1.02rem; }
.blog-body ul li { list-style: disc; }
.blog-body ol li { list-style: decimal; }
.blog-body strong { color: var(--kiey-indigo); font-weight: 700; }
.blog-body a { color: var(--kiey-cyan-dark); border-bottom: 1px solid rgba(41,73,141,0.3); }
.blog-body a:hover { border-bottom-color: var(--kiey-cyan-dark); }
.blog-body blockquote { border-left: 4px solid var(--kiey-cyan); padding: 8px 22px; margin: 24px 0; color: var(--text-muted); font-style: italic; background: var(--bg-soft); border-radius: 0 10px 10px 0; }

.blog-cta-inline { margin: 40px 0; padding: 32px; background: linear-gradient(135deg, #0b0520 0%, #1a0f3f 100%); border-radius: var(--radius-lg); color: #fff; text-align: center; }
.blog-cta-inline h3 { color: #fff; font-family: 'Sora'; font-size: 1.4rem; margin-bottom: 14px; }
.blog-cta-inline p { color: rgba(255,255,255,0.8); margin-bottom: 20px; }
.blog-cta-inline .btn { color: #fff; }

.voice-placeholder { background: rgba(255, 215, 0, 0.08); border-left: 3px solid #d4a300; padding: 14px 18px; margin: 20px 0; font-size: 0.92rem; color: #7a5e00; border-radius: 0 8px 8px 0; font-family: monospace; }

.related-posts { max-width: 1100px; margin: 80px auto 0; padding: 0 clamp(20px, 5vw, 40px); }
.related-posts h2 { font-family: 'Sora'; font-size: 1.6rem; font-weight: 800; color: var(--kiey-indigo); margin-bottom: 24px; text-align: center; }
.related-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }