:root {
  --ink: #1f2937;
  --muted: #64748b;
  --line: #e5e7eb;
  --paper: #fffdf8;
  --accent: #d97706;
  --accent-soft: #fff7ed;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--ink);
  background: #f6f7f9;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.8;
}
a { color: inherit; text-decoration: none; }
.shell { width: min(1040px, calc(100% - 36px)); margin: 0 auto; }
header { padding: 28px 0 16px; background: var(--paper); border-bottom: 1px solid var(--line); }
.brand { display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.brand h1 { margin: 0; font-size: 25px; letter-spacing: .04em; }
.brand p { margin: 3px 0 0; color: var(--muted); font-size: 13px; }
nav { display: flex; gap: 18px; color: var(--muted); font-size: 14px; }
nav a:hover, nav a.active { color: var(--accent); }
.hero { margin: 30px 0 22px; padding: 34px; background: linear-gradient(135deg, #fff7ed, #fffbeb); border: 1px solid #fed7aa; border-radius: 16px; }
.hero h2 { margin: 0 0 8px; font-size: clamp(27px, 5vw, 42px); line-height: 1.25; }
.hero p { max-width: 650px; margin: 0; color: #6b4f35; }
.layout { display: grid; grid-template-columns: minmax(0, 1fr) 260px; gap: 22px; align-items: start; }
.card, article { background: var(--paper); border: 1px solid var(--line); border-radius: 12px; }
.post { padding: 23px 25px; margin-bottom: 16px; }
.post h3 { margin: 0 0 6px; font-size: 22px; }
.post h3 a:hover { color: var(--accent); }
.meta { color: var(--muted); font-size: 13px; }
.excerpt { margin: 10px 0 15px; color: #4b5563; }
.read { color: var(--accent); font-size: 14px; font-weight: 650; }
aside { padding: 21px; }
aside h3 { margin: 0 0 8px; font-size: 16px; }
aside p { margin: 0; color: var(--muted); font-size: 14px; }
.tag { display: inline-block; margin: 15px 5px 0 0; padding: 2px 9px; background: var(--accent-soft); color: #b45309; border-radius: 999px; font-size: 12px; }
article { padding: clamp(24px, 5vw, 52px); }
article h1 { margin: 0 0 8px; font-size: clamp(28px, 5vw, 42px); line-height: 1.35; }
article .content { margin-top: 30px; font-size: 16px; }
article h2 { margin: 30px 0 8px; font-size: 23px; }
article blockquote { margin: 22px 0; padding: 12px 18px; border-left: 4px solid #f59e0b; background: var(--accent-soft); color: #6b4f35; }
code { padding: 2px 5px; background: #f1f5f9; border-radius: 4px; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .9em; }
footer { margin: 35px 0 22px; color: var(--muted); font-size: 13px; text-align: center; }
@media (max-width: 700px) {
  .brand { align-items: flex-start; flex-direction: column; }
  nav { gap: 13px; }
  .layout { grid-template-columns: 1fr; }
  .hero { padding: 25px; }
}