:root {
  --orange: #f2900d;
  --orange-deep: #d97900;
  --ink: #2b2b2b;
  --ink-soft: #666666;
  --paper: #ffffff;
  --paper-deep: #faf8f4;
  --line: #eae5db;
  --radius: 4px;
  --serif: Georgia, "PT Serif", serif;
  --sans: "Segoe UI", Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper-deep);
  line-height: 1.65;
  font-size: 16px;
}

img { max-width: 100%; display: block; }
a { color: var(--orange-deep); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 640px; margin: 0 auto; padding: 0 20px; }

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 700;
  line-height: 1.3;
  margin: 0 0 0.5em;
  color: var(--ink);
}

/* Header */
.site-header { background: #fff; border-bottom: 1px solid var(--line); padding: 20px 0; }
.brand { display: flex; align-items: center; justify-content: center; gap: 10px; text-decoration: none; }
.brand img { height: 34px; }
.brand-tag { text-align: center; font-size: 13px; color: var(--ink-soft); margin-top: 6px; }

/* Article list (index) */
.content { padding: 30px 0 50px; }
.article-list { list-style: none; margin: 0; padding: 0; }
.article-entry {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin-bottom: 12px;
}
.article-entry a { color: var(--ink); font-family: var(--serif); font-size: 17px; font-weight: 700; }
.article-entry a:hover { color: var(--orange-deep); text-decoration: none; }
.article-entry .meta { font-size: 12.5px; color: var(--ink-soft); margin-top: 6px; }
.article-entry .meta .cat { color: var(--orange-deep); font-weight: 600; }

.footer-note { text-align: center; font-size: 12.5px; color: var(--ink-soft); margin-top: 24px; }

/* Article page */
.article-header { padding: 26px 0 6px; }
.article-title { font-size: clamp(22px, 4vw, 28px); }
.article-meta { font-size: 13px; color: var(--ink-soft); margin-bottom: 18px; }
.article-meta .cat { color: var(--orange-deep); font-weight: 600; }

.article-photo { margin: 0 0 22px; border-radius: var(--radius); overflow: hidden; box-shadow: 0 8px 20px rgba(20,15,5,0.10); }

.article-body { padding-bottom: 20px; }
.article-body p { margin: 0 0 15px; color: var(--ink-soft); font-size: 16px; }
.article-body h3 { font-size: 18px; margin: 24px 0 10px; color: var(--orange-deep); }

.article-nav {
  display: flex; justify-content: space-between; gap: 14px;
  padding: 20px 0; border-top: 1px solid var(--line); margin-top: 10px; font-size: 14px;
}
.article-nav a { color: var(--ink); }
.article-nav .to-index { text-align: center; }

/* Footer */
.site-footer { background: #fff; border-top: 1px solid var(--line); padding: 20px 0; text-align: center; font-size: 12.5px; color: var(--ink-soft); }

@media (max-width: 480px) {
  .article-nav { flex-direction: column; text-align: center; }
}