:root {
  --font-size: 20px;
  --paper: #f5f2ea;
  --paper-deep: #ebe6d9;
  --ink: #2a2622;
  --ink-soft: #6b635a;
  --jade: #4f6e60;
  --jade-pale: #dfe7df;
  --seal: #a3483b;
  --line: #d8d1c2;
  --serif: "Songti SC", "STSong", "Noto Serif CJK SC", "Source Han Serif SC", "Noto Serif SC", "SimSun", serif;
  --kai: "Kaiti SC", "STKaiti", "KaiTi", "楷体", var(--serif);
}

* { box-sizing: border-box; }

html {
  font-size: var(--font-size);
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  line-height: 1.9;
}

a { color: var(--jade); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.5rem 1.25rem;
  background: rgba(245, 242, 234, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(6px);
  font-size: 16px;
}

.brand {
  color: var(--ink);
  text-decoration: none;
  font-family: var(--kai);
  font-size: 22px;
  letter-spacing: 0.15em;
}

.brand span {
  margin-left: 0.8em;
  font-size: 15px;
  color: var(--ink-soft);
  letter-spacing: 0.05em;
}

.font-tools { display: flex; gap: 0.4rem; }

.font-tools button {
  min-width: 48px;
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-size: 17px;
  cursor: pointer;
}

.font-tools button:hover { border-color: var(--jade); color: var(--jade); }

main { padding: 0 1.25rem; }

/* 首页 */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 300px) 1fr;
  gap: 3rem;
  align-items: center;
  max-width: 900px;
  margin: 3rem auto 2rem;
}

.hero img {
  width: 100%;
  height: auto;
  border-radius: 4px;
  box-shadow: 0 12px 30px rgba(42, 38, 34, 0.18);
  transform: rotate(-1.5deg);
}

.hero h1 {
  margin: 0;
  font-family: var(--kai);
  font-size: 3.2rem;
  font-weight: normal;
  letter-spacing: 0.3em;
  line-height: 1.3;
}

.byline { margin: 0.4rem 0 0; color: var(--ink-soft); letter-spacing: 0.2em; }

.tagline {
  display: inline-block;
  margin: 1.2rem 0 1.8rem;
  padding: 0.1rem 0.6rem;
  border: 1.5px solid var(--seal);
  border-radius: 3px;
  color: var(--seal);
  letter-spacing: 0.3em;
}

.start {
  display: block;
  width: fit-content;
  padding: 0.55rem 1.8rem;
  border-radius: 999px;
  background: var(--jade);
  color: #fff;
  text-decoration: none;
  letter-spacing: 0.2em;
}

.start:hover { background: #3f5a4e; }

.intro {
  max-width: 760px;
  margin: 0 auto 2.5rem;
  padding: 1.4rem 1.8rem;
  background: var(--jade-pale);
  border-left: 4px solid var(--jade);
  border-radius: 4px;
  font-size: 0.95rem;
}

.intro p { margin: 0.4rem 0; }

.toc { max-width: 760px; margin: 0 auto 3rem; scroll-margin-top: 70px; }

.toc h2 {
  font-family: var(--kai);
  font-weight: normal;
  font-size: 1.6rem;
  letter-spacing: 0.5em;
  text-align: center;
  margin: 0 0 1rem;
}

.toc ol { list-style: none; margin: 0; padding: 0; }

.toc li { border-bottom: 1px dashed var(--line); }

.toc li a {
  display: flex;
  gap: 1.1rem;
  padding: 1.1rem 0.4rem;
  color: var(--ink);
  text-decoration: none;
  border-radius: 4px;
}

.toc li a:hover { background: var(--paper-deep); }

.num { font-family: Georgia, serif; color: var(--seal); font-size: 1.05rem; padding-top: 0.1rem; }

.entry { display: flex; flex-direction: column; min-width: 0; }

.entry-title { font-size: 1.2rem; font-weight: bold; }

.entry-title small {
  margin-left: 0.6em;
  font-size: 0.8rem;
  font-weight: normal;
  color: var(--ink-soft);
}

.entry-excerpt { color: var(--ink-soft); font-size: 0.85rem; line-height: 1.7; margin-top: 0.2rem; }

.entry-meta { font-size: 0.75rem; color: var(--ink-soft); margin-top: 0.3rem; }

.entry-meta em {
  font-style: normal;
  color: var(--jade);
  border: 1px solid var(--jade);
  border-radius: 3px;
  padding: 0 0.35em;
}

/* 文章页 */
article { max-width: 36em; margin: 0 auto; }

.work-header { text-align: center; padding: 3rem 0 1.5rem; border-bottom: 1px solid var(--line); margin-bottom: 2rem; }

.category { margin: 0; color: var(--seal); letter-spacing: 0.4em; font-size: 0.85rem; }

.work-header h1 {
  margin: 0.4rem 0 0;
  font-family: var(--kai);
  font-weight: normal;
  font-size: 2.2rem;
  letter-spacing: 0.15em;
  line-height: 1.4;
}

.subtitle { margin: 0.4rem 0 0; font-size: 1.05rem; color: var(--ink-soft); }

.meta { margin: 1rem 0 0; font-size: 0.8rem; color: var(--ink-soft); }

.work-body p {
  margin: 0 0 1em;
  text-indent: 2em;
  text-align: justify;
}

.work-body h2 {
  margin: 2.2em 0 1em;
  font-size: 1.2rem;
  text-align: center;
  letter-spacing: 0.3em;
}

.work-body p.sign { text-indent: 0; text-align: right; color: var(--ink-soft); margin: 0.2em 0; }

.work-body h2 + p.sign, .work-body p:not(.sign) + p.sign { margin-top: 2em; }

.poem .work-body { text-align: center; }

.poem .work-body p.verse { text-indent: 0; text-align: center; line-height: 2.2; font-family: var(--kai); font-size: 1.1rem; }

.pager {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 1rem;
  align-items: center;
  max-width: 36em;
  margin: 3rem auto;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  font-size: 0.9rem;
}

.pager a { text-decoration: none; color: var(--ink); }

.pager a span { display: block; font-size: 0.75rem; color: var(--ink-soft); }

.pager .next { text-align: right; }

.pager .to-toc {
  padding: 0.35rem 1.1rem;
  border: 1px solid var(--jade);
  border-radius: 999px;
  color: var(--jade);
}

.pager a:hover { color: var(--jade); }

.notfound { text-align: center; padding: 5rem 0; }

.site-footer {
  padding: 2rem 1.25rem 3rem;
  border-top: 1px solid var(--line);
  text-align: center;
  font-size: 14px;
  color: var(--ink-soft);
}

.site-footer p { margin: 0.2rem 0; }

@media (max-width: 680px) {
  .hero { grid-template-columns: 1fr; gap: 1.8rem; margin-top: 2rem; text-align: center; }
  .hero img { max-width: 220px; margin: 0 auto; display: block; }
  .hero h1 { font-size: 2.6rem; }
  .start { margin: 0 auto; }
  .intro { padding: 1rem 1.2rem; }
  .brand span { display: none; }
  .work-header { padding-top: 2rem; }
  .work-header h1 { font-size: 1.8rem; }
}

@media print {
  .site-header, .pager, .site-footer { display: none; }
  body { background: #fff; }
}