:root {
  --page-bg: #ffffff;
  --text-main: #111111;
  --text-soft: #666666;
  --line: rgba(17, 17, 17, 0.12);
  --line-strong: rgba(17, 17, 17, 0.3);
  --panel-width: min(820px, calc(100vw - 3rem));
  --body-font: "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC",
    "Microsoft YaHei", "Heiti SC", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--page-bg);
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--page-bg);
  color: var(--text-main);
  font-family: var(--body-font);
}

a {
  color: inherit;
}

.archive-shell,
.post-shell {
  padding: 2rem 1.5rem;
}

.archive-shell {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding-top: 1.25rem;
}

.post-shell {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding-top: 2rem;
}

.archive-panel,
.post-panel {
  width: var(--panel-width);
}

.archive-panel {
  position: relative;
}

.archive-clock {
  position: absolute;
  top: 0.1rem;
  left: 0;
  width: 8rem;
}

.clock-time {
  display: inline-block;
  font-size: 0.98rem;
  letter-spacing: 0.02em;
}

.archive-header {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  justify-content: space-between;
  margin-bottom: 1.2rem;
  margin-left: auto;
  margin-right: auto;
  width: min(100%, 40rem);
}

h1 {
  margin: 0;
  font-size: clamp(2.8rem, 8vw, 5.5rem);
  font-weight: 400;
  letter-spacing: -0.04em;
  line-height: 0.92;
}

#archive-title {
  font-size: 0.9rem;
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1.2;
  margin-bottom: 0;
}

.search-label {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.search-input {
  width: 9rem;
  margin-left: auto;
  border: 0;
  border-bottom: 1px solid rgba(17, 17, 17, 0.12);
  border-radius: 0;
  padding: 0.2rem 0;
  background: transparent;
  color: var(--text-main);
  font: inherit;
  font-size: 0.82rem;
  outline: none;
}

.search-input::placeholder {
  color: var(--text-soft);
}

.search-input:focus {
  border-bottom-color: rgba(17, 17, 17, 0.28);
}

.post-list {
  list-style: none;
  margin: 0;
  margin-left: auto;
  margin-right: auto;
  padding: 0;
  width: min(100%, 40rem);
  border-top: 1px solid rgba(17, 17, 17, 0.08);
}

.post-list li {
  border-bottom: 1px solid rgba(17, 17, 17, 0.08);
}

.post-list a {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 10rem 7rem;
  column-gap: 1.2rem;
  align-items: baseline;
  text-decoration: none;
  padding: 0.55rem 0;
}

.post-list a:hover,
.post-list a:focus-visible {
  text-decoration: underline;
  text-underline-offset: 0.14em;
}

.post-name {
  font-size: 0.92rem;
  min-width: 0;
}

.post-tags {
  color: var(--text-soft);
  font-size: 0.74rem;
  letter-spacing: 0.02em;
  text-transform: lowercase;
  text-align: left;
}

.post-meta,
.post-date {
  font-size: 0.82rem;
  color: var(--text-soft);
  white-space: nowrap;
  text-align: right;
}

.post-details {
  display: flex;
  gap: 1rem;
  margin: 0;
  font-size: 0.84rem;
  color: var(--text-soft);
}

.post-article-tag {
  display: inline-block;
  margin-top: 0.7rem;
  font-size: 0.78rem;
  color: var(--text-soft);
}

.eyebrow {
  margin: 0 0 1rem;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-soft);
}

.post-panel {
  padding-bottom: 4rem;
}

.back-link {
  display: inline-block;
  margin-bottom: 2rem;
  color: var(--text-soft);
  text-decoration: none;
}

.back-link:hover,
.back-link:focus-visible {
  color: var(--text-main);
}

.post-title {
  font-size: clamp(1.3rem, 3.5vw, 2rem);
  line-height: 0.96;
  margin-bottom: 0.8rem;
}

.post-content {
  margin-top: 2.5rem;
  font-size: 0.96rem;
  line-height: 1.85;
}

.post-content p {
  margin: 0 0 1.35rem;
}

@media (max-width: 640px) {
  .archive-clock {
    position: static;
    width: auto;
    margin: 0 auto 1rem;
  }

  .archive-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.45rem;
  }

  .search-input {
    width: 100%;
    max-width: 12rem;
  }

  .post-list a {
    align-items: flex-start;
    display: flex;
    flex-direction: column;
    gap: 0.22rem;
    text-align: left;
  }

  .post-details {
    flex-direction: column;
    gap: 0.2rem;
  }

  .post-content {
    font-size: 1rem;
  }
}