:root {
  --bg: #faf9f6;
  --text: #171717;
  --muted: #77736b;
  --line: #e5e0d7;
  --hover: #8b3328;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: ui-serif, "Noto Serif SC", "Source Han Serif SC", "Songti SC", "Microsoft YaHei", serif;
  line-height: 1.75;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-main {
  width: min(760px, calc(100% - 32px));
  margin: 0 auto;
  padding: 96px 0 112px;
}

.site-title {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 32px;
  padding-bottom: 42px;
  border-bottom: 1px solid var(--line);
}

.account-nav {
  display: flex;
  flex: 0 0 auto;
  gap: 14px;
  padding-top: 14px;
  color: var(--muted);
  font-size: 0.95rem;
}

.account-nav a {
  border-bottom: 1px solid transparent;
}

.account-nav a:hover {
  color: var(--text);
  border-color: var(--text);
}

.site-title h1 {
  margin: 0;
  font-size: clamp(2.6rem, 8vw, 5rem);
  line-height: 1.05;
  font-weight: 700;
  letter-spacing: 0;
}

.site-title p {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.category-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.95rem;
}

.category-nav a {
  border-bottom: 1px solid transparent;
}

.category-nav a:hover,
.category-nav a.active {
  color: var(--text);
  border-color: var(--text);
}

.post-list {
  display: grid;
}

.post-row {
  display: grid;
  grid-template-columns: 108px minmax(0, 1fr) auto;
  gap: 18px;
  align-items: baseline;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

time,
.post-category {
  color: var(--muted);
  font-size: 0.92rem;
  white-space: nowrap;
}

.post-row h2 {
  margin: 0;
  font-size: clamp(1.2rem, 3vw, 1.65rem);
  line-height: 1.35;
  font-weight: 600;
}

.post-row h2 a:hover {
  color: var(--hover);
}

.post-category a:hover {
  color: var(--text);
}

.page-navigator {
  display: flex;
  gap: 14px;
  padding-top: 24px;
  color: var(--muted);
}

.page-navigator a:hover {
  color: var(--text);
}

.empty-state {
  margin: 0;
  padding: 28px 0;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
}

.article-header {
  padding-bottom: 34px;
  border-bottom: 1px solid var(--line);
}

.back-link {
  display: inline-block;
  margin-bottom: 26px;
  color: var(--muted);
  font-size: 0.95rem;
}

.back-link:hover {
  color: var(--text);
}

.article-header h1 {
  margin: 10px 0 0;
  font-size: clamp(2rem, 7vw, 4.2rem);
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: 0;
}

.article-body {
  padding-top: 34px;
  font-size: 1.08rem;
}

.article-body p,
.article-body ul,
.article-body ol,
.article-body blockquote,
.article-body pre {
  margin: 0 0 1.25em;
}

.article-body h2,
.article-body h3 {
  margin: 1.8em 0 0.7em;
  line-height: 1.25;
}

.article-body a {
  color: var(--hover);
  border-bottom: 1px solid currentColor;
}

.article-body img {
  max-width: 100%;
  height: auto;
}

.article-body blockquote {
  margin-left: 0;
  padding-left: 18px;
  border-left: 3px solid var(--line);
  color: var(--muted);
}

.article-body code,
.article-body pre {
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
}

.article-body pre {
  overflow-x: auto;
  padding: 16px;
  background: #222;
  color: #f7f7f7;
}

.comments {
  margin-top: 54px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

.comments-header h2,
.comment-respond h2 {
  margin: 0 0 18px;
  font-size: 1.25rem;
}

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

.comment-list li {
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.comment-list .comment-author {
  color: var(--text);
  font-weight: 600;
}

.comment-list .comment-meta {
  color: var(--muted);
  font-size: 0.9rem;
}

.comment-empty,
.comment-login,
.comment-current-user {
  color: var(--muted);
}

.comment-login a,
.comment-current-user a {
  color: var(--text);
  border-bottom: 1px solid var(--text);
}

.comment-respond {
  margin-top: 30px;
}

.comment-form {
  display: grid;
  gap: 12px;
}

.comment-form label {
  color: var(--muted);
  font-size: 0.95rem;
}

.comment-form textarea {
  width: 100%;
  min-height: 150px;
  resize: vertical;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
  padding: 12px;
  font: inherit;
}

.comment-form button {
  justify-self: start;
  border: 1px solid var(--text);
  background: var(--text);
  color: #fff;
  padding: 8px 16px;
  font: inherit;
  cursor: pointer;
}

.comment-form button:hover {
  background: var(--hover);
  border-color: var(--hover);
}

@media (max-width: 640px) {
  .site-main {
    padding-top: 64px;
    padding-bottom: 104px;
  }

  .post-row {
    grid-template-columns: 1fr;
    gap: 6px;
    padding: 18px 0;
  }

  .site-title {
    display: grid;
    gap: 20px;
  }

  .account-nav {
    padding-top: 0;
    justify-content: flex-start;
  }

  .post-category {
    white-space: normal;
  }
}