.item { max-width: 820px; margin: 0 auto; }
.back { font-family: var(--mono); font-size: 0.85rem; color: var(--ink-dim); }
.back:hover { color: var(--accent); }

.item-hdr { margin: 24px 0 40px; padding-bottom: 28px; border-bottom: 1px solid var(--line); }
.item-hdr .meta { display: flex; gap: 10px; align-items: center; margin-bottom: 16px; }
.item-hdr .project { font-family: var(--mono); font-size: 0.75rem; color: var(--ink-dim); padding: 3px 8px; border: 1px solid var(--line); border-radius: 4px; }
.item-hdr h1 { font-size: 2rem; margin: 8px 0 12px; letter-spacing: -0.02em; }

.tech-note { font-size: 1rem; line-height: 1.8; }
.tech-note h3 { margin: 28px 0 12px; font-size: 1.2rem; color: var(--accent-2); }
.tech-note h4 { margin: 20px 0 10px; font-size: 1.05rem; color: var(--ink); }
.tech-note p { margin: 12px 0; }
.tech-note ul, .tech-note ol { padding-left: 22px; }
.tech-note li { margin: 4px 0; }
.tech-note code { font-family: var(--mono); font-size: 0.92em; background: rgba(255,255,255,0.06); padding: 2px 6px; border-radius: 4px; color: var(--accent); }
.tech-note pre { background: #0a0b0f; border: 1px solid var(--line); border-radius: 8px; padding: 16px; overflow-x: auto; }
.tech-note pre code { background: none; color: var(--ink); padding: 0; font-size: 0.88rem; line-height: 1.6; }
.tech-note blockquote { border-left: 3px solid var(--accent); margin: 16px 0; padding: 4px 16px; color: var(--ink-dim); background: var(--panel); border-radius: 0 8px 8px 0; }
.tech-note table { border-collapse: collapse; width: 100%; margin: 16px 0; }
.tech-note th, .tech-note td { padding: 8px 12px; border: 1px solid var(--line); text-align: left; }
.tech-note th { background: var(--panel); color: var(--accent); }

.learn-points { margin-top: 48px; background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 24px; border-left: 3px solid var(--strong); }
.learn-points h2 { margin-top: 0; font-size: 1.2rem; color: var(--strong); }
.learn-points ol { padding-left: 22px; margin: 0; }
.learn-points li { margin: 8px 0; line-height: 1.7; }

.raw { margin-top: 40px; }
.raw summary { cursor: pointer; font-family: var(--mono); font-size: 0.85rem; color: var(--ink-dim); padding: 10px 14px; background: var(--panel); border-radius: 6px; }
.raw summary:hover { color: var(--accent); }
.raw pre { background: #0a0b0f; border: 1px solid var(--line); border-radius: 8px; padding: 16px; overflow-x: auto; margin-top: 10px; font-family: var(--mono); font-size: 0.82rem; }

.pager { display: flex; justify-content: space-between; margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--line); font-family: var(--mono); font-size: 0.9rem; }