:root { --blue: #2658f6; --blue-dark: #1f43bf; --ink: #172033; --muted: #5e6a7d; --line: #dfe5ef; --soft: #f6f8fb; --panel: #ffffff; --accent: #ff9c33; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: var(--ink); background: var(--soft); line-height: 1.65; }
a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--blue-dark); text-decoration: underline; }
.site-header { background: #fff; border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 10; }
.nav { max-width: 1120px; margin: 0 auto; padding: 16px 24px; display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.brand { color: var(--ink); font-weight: 800; font-size: 1.05rem; letter-spacing: 0; }
.nav-actions { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; font-size: .94rem; }
.cta { display: inline-flex; align-items: center; justify-content: center; min-height: 40px; padding: 0 16px; border-radius: 8px; background: var(--blue); color: #fff; font-weight: 700; }
.cta:hover { color: #fff; text-decoration: none; background: var(--blue-dark); }
.hero { background: linear-gradient(180deg, #ffffff 0%, #eef3ff 100%); border-bottom: 1px solid var(--line); }
.hero-inner { max-width: 960px; margin: 0 auto; padding: 56px 24px 48px; }
.eyebrow { color: var(--blue-dark); font-size: .84rem; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; margin: 0 0 12px; }
h1 { font-size: clamp(2.1rem, 5vw, 4.3rem); line-height: 1.05; margin: 0 0 18px; letter-spacing: 0; }
.subtitle { max-width: 760px; margin: 0 0 18px; font-size: 1.12rem; color: var(--muted); }
.meta { color: var(--muted); font-size: .94rem; display: flex; gap: 10px; flex-wrap: wrap; }
.page { max-width: 1120px; margin: 0 auto; padding: 34px 24px 64px; display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 38px; align-items: start; }
.article { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: clamp(24px, 4vw, 48px); box-shadow: 0 6px 24px rgba(23,32,51,.04); }
.article h2 { font-size: 1.85rem; line-height: 1.22; margin: 42px 0 14px; letter-spacing: 0; }
.article h3 { font-size: 1.32rem; line-height: 1.3; margin: 30px 0 10px; letter-spacing: 0; }
.article h4 { font-size: 1.08rem; margin: 22px 0 8px; letter-spacing: 0; }
.article p { margin: 0 0 18px; }
.article ul, .article ol { margin: 0 0 22px 1.3rem; padding: 0; }
.article li { margin: 8px 0; }
.article hr { border: 0; border-top: 1px solid var(--line); margin: 32px 0; }
.article blockquote { margin: 24px 0; padding: 18px 22px; border-left: 4px solid var(--accent); background: #fff8ef; color: #384357; }
.article code { background: #eef2f7; border-radius: 4px; padding: 2px 5px; font-size: .92em; }
.template-code { overflow-x: auto; white-space: pre-wrap; background: #101828; color: #f7fafc; border-radius: 8px; padding: 18px; margin: 22px 0 28px; font-size: .9rem; line-height: 1.55; }
.template-code code { background: transparent; color: inherit; padding: 0; }
.table-wrap { overflow-x: auto; margin: 24px 0 30px; border: 1px solid var(--line); border-radius: 8px; }
table { width: 100%; border-collapse: collapse; min-width: 680px; background: #fff; }
th, td { padding: 12px 14px; border-bottom: 1px solid var(--line); vertical-align: top; text-align: left; }
th { background: #f0f4ff; font-size: .9rem; color: #233150; }
.sidebar { position: sticky; top: 88px; display: grid; gap: 18px; }
.side-panel { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 18px; }
.side-panel h2 { font-size: .95rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin: 0 0 12px; }
.side-panel nav, .related-list { display: grid; gap: 10px; }
.side-panel a { color: #26344f; font-size: .94rem; line-height: 1.35; }
.related { margin-top: 42px; padding-top: 28px; border-top: 1px solid var(--line); }
.related h2 { margin-top: 0; }
.footer { border-top: 1px solid var(--line); background: #fff; }
.footer-inner { max-width: 1120px; margin: 0 auto; padding: 26px 24px; color: var(--muted); font-size: .92rem; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.blog-index { max-width: 1120px; margin: 0 auto; padding: 42px 24px 70px; }
.post-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.post-card { display: grid; gap: 10px; background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 22px; color: var(--ink); }
.post-card:hover { text-decoration: none; border-color: #b8c6ee; box-shadow: 0 10px 26px rgba(23,32,51,.08); }
.post-card h2 { margin: 0; font-size: 1.22rem; line-height: 1.3; letter-spacing: 0; }
.post-card p { margin: 0; color: var(--muted); }
.post-card span { color: var(--blue-dark); font-weight: 700; font-size: .92rem; }
@media (max-width: 900px) { .page { display: block; } .sidebar { position: static; margin-top: 26px; } .post-grid { grid-template-columns: 1fr; } }
@media (max-width: 640px) { .nav { align-items: flex-start; flex-direction: column; } .nav-actions { width: 100%; } .cta { width: 100%; } .hero-inner { padding: 42px 20px 36px; } .page, .blog-index { padding-left: 18px; padding-right: 18px; } .article { padding: 22px 18px; } }