/* ═══════════════════════════════════════════════════════════
   Teigen's Daily — Editorial Minimalism
   纸色系 · 双横线报头 · 墨红 accent · 衬线为主 mono 为辅
   ═══════════════════════════════════════════════════════════ */

/* ── 色彩系统 ── */
:root {
  /* 日读：纸与墨 */
  --paper:     #f7f2e7;     /* 主底：温暖米白，比白纸柔和 */
  --paper-2:   #efe7d2;     /* 副底：用于分组/边栏 */
  --paper-3:   #e5dcc3;     /* 边界：规格更浅的分割 */
  --ink:       #1c1710;     /* 主文字：墨黑 */
  --ink-2:     #4a4237;     /* 次文字 */
  --ink-3:     #8a8072;     /* 元数据/date */
  --ink-4:     #b8ae99;     /* 最弱（灰线） */
  --accent:    #8b1e2c;     /* 墨红：关键强调 */
  --accent-2:  #f2dcdc;     /* 浅墨红：背景/hover */
  --link:      #3e5c76;     /* 墨蓝链接 */
  --link-h:    #1c3a56;

  /* 分类色（点缀，不作大面积） */
  --c-ai:      #2e5e4e;     /* 松绿 */
  --c-x:       #5a4e7a;     /* 深紫 */
  --c-jike:    #b85c2e;     /* 陶土橙 */

  /* 字体 */
  --f-display: "Fraunces Variable", "Fraunces", "Source Han Serif SC", "Noto Serif CJK SC", "Songti SC", "Noto Serif SC", Georgia, serif;
  --f-body:    "Source Han Serif SC", "Noto Serif CJK SC", "Songti SC", "Fraunces Variable", "Fraunces", Georgia, serif;
  --f-mono:    "JetBrains Mono Variable", "JetBrains Mono", "IBM Plex Mono", "SF Mono", Menlo, ui-monospace, monospace;

  /* 尺度 */
  --read-w:    40rem;       /* ≈640px 单栏阅读 */
  --wide-w:    68rem;       /* ≈1088px 归档/首页 */

  --s-1: 0.5rem; --s-2: 1rem;  --s-3: 1.5rem;
  --s-4: 2.5rem; --s-5: 4rem;  --s-6: 6rem;  --s-7: 9rem;

  --rule:      currentColor;
  --shadow-1:  0 1px 0 rgba(28,23,16,0.06);
  --shadow-2:  0 8px 32px rgba(28,23,16,0.08);

  --dur-1: 0.15s; --dur-2: 0.3s; --dur-3: 0.6s;
  --ease:      cubic-bezier(0.22, 1, 0.36, 1);
}

/* 夜读：纸墨互换（不是纯黑，是深咖） */
:root[data-theme="dark"],
:root[data-theme="auto"] {
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root[data-theme="auto"] {
    --paper:    #15110a;
    --paper-2:  #1e180f;
    --paper-3:  #2a2316;
    --ink:      #eae1c9;
    --ink-2:    #bbb09a;
    --ink-3:    #7e7461;
    --ink-4:    #4a4234;
    --accent:   #d87d8a;
    --accent-2: #3a1f22;
    --link:     #9bb6cc;
    --link-h:   #c5d6e5;
    --c-ai:     #6ba090;
    --c-x:      #a096c5;
    --c-jike:   #e09268;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper:    #15110a;
  --paper-2:  #1e180f;
  --paper-3:  #2a2316;
  --ink:      #eae1c9;
  --ink-2:    #bbb09a;
  --ink-3:    #7e7461;
  --ink-4:    #4a4234;
  --accent:   #d87d8a;
  --accent-2: #3a1f22;
  --link:     #9bb6cc;
  --link-h:   #c5d6e5;
  --c-ai:     #6ba090;
  --c-x:      #a096c5;
  --c-jike:   #e09268;
  color-scheme: dark;
}

/* ── 重置 ── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html {
  font-size: 17px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
@media (min-width: 1200px) { html { font-size: 18px; } }

body {
  font-family: var(--f-body);
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--ink);
  background: var(--paper);
  font-feature-settings: "kern", "liga", "calt", "ss01";
  transition: background var(--dur-2) var(--ease), color var(--dur-2) var(--ease);
}

img, svg { display: block; max-width: 100%; }
ul, ol { list-style: none; }
button {
  cursor: pointer; border: 0; background: transparent;
  font: inherit; color: inherit;
}
a {
  color: var(--link);
  text-decoration: none;
  background-image: linear-gradient(to right, var(--link) 0, var(--link) 100%);
  background-size: 100% 1px;
  background-repeat: no-repeat;
  background-position: 0 95%;
  transition: color var(--dur-1), background-size var(--dur-2) var(--ease);
}
a:hover {
  color: var(--link-h);
  background-size: 0 1px;
}

/* 选中 */
::selection { background: var(--accent); color: var(--paper); }

/* ── 阅读进度条 ── */
.progress {
  position: fixed; top: 0; left: 0; right: 0;
  height: 2px; z-index: 1000;
  background: transparent;
  pointer-events: none;
}
.progress-bar {
  height: 100%; width: 0%;
  background: var(--accent);
  transition: width 0.1s linear;
}

/* ── 顶栏 ── */
.masthead {
  padding: var(--s-3) 0 0;
  border-bottom: 1px solid var(--ink);
  position: relative;
}
.masthead::after {
  content: ""; display: block;
  height: 1px; background: var(--ink);
  margin-top: 3px;
}
.masthead-inner {
  display: flex; align-items: baseline;
  justify-content: space-between;
  gap: var(--s-3);
  padding: var(--s-1) var(--s-3) var(--s-2);
  max-width: var(--wide-w); margin: 0 auto;
  font-family: var(--f-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.masthead-title {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 1.1rem;
  font-variation-settings: "opsz" 12, "SOFT" 30, "WONK" 0;
  letter-spacing: -0.01em;
  text-transform: none;
  color: var(--ink);
  background: none;
}
.masthead-nav { display: flex; gap: var(--s-3); align-items: center; }
.masthead-nav a { color: var(--ink-3); background: none; }
.masthead-nav a:hover { color: var(--accent); background: none; }
.theme-toggle {
  font-family: var(--f-mono);
  font-size: 1rem;
  padding: 2px 6px;
  line-height: 1;
  color: var(--ink-3);
  transition: color var(--dur-1);
}
.theme-toggle:hover { color: var(--accent); }

/* ── 容器 ── */
.wide { max-width: var(--wide-w); margin: 0 auto; padding: 0 var(--s-3); }
.narrow { max-width: var(--read-w); margin: 0 auto; padding: 0 var(--s-3); }

/* ── 主区 ── */
.main {
  min-height: calc(100vh - 200px);
  padding: var(--s-5) 0 var(--s-6);
}

/* ═══════════════════════════════════════════════
   首页 — Volume / Issue Hero
   ═══════════════════════════════════════════════ */

.issue-hero {
  padding: var(--s-5) 0 var(--s-4);
  border-bottom: 3px double var(--ink);
  text-align: center;
  position: relative;
}
.hero-kicker {
  font-family: var(--f-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: var(--s-4);
}
.hero-kicker .kicker-sep {
  margin: 0 0.4em;
  color: var(--ink-4);
}
.hero-date {
  font-family: var(--f-display);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.02em;
  margin: 0 auto;
  font-variation-settings: "opsz" 144, "SOFT" 30;
}
.hero-date-en {
  display: block;
  font-size: clamp(2.4rem, 8vw, 5rem);
  font-style: italic;
  color: var(--ink);
}
.hero-date-zh {
  display: block;
  margin-top: 0.4em;
  font-family: var(--f-body);
  font-size: clamp(1.1rem, 2.5vw, 1.55rem);
  font-style: normal;
  letter-spacing: 0.25em;
  color: var(--ink-2);
  line-height: 1.2;
}
.hero-meta {
  margin-top: var(--s-3);
  font-family: var(--f-mono);
  font-size: 0.78rem;
  letter-spacing: 0.15em;
  color: var(--ink-3);
  text-transform: uppercase;
}
.hero-meta .sep {
  display: inline-block;
  margin: 0 0.8em;
  color: var(--ink-4);
}
.hero-meta .sep-soft {
  display: inline-block;
  width: 1.2em;
}
.hero-intro {
  max-width: 34rem;
  margin: var(--s-3) auto 0;
  font-size: 0.95rem;
  color: var(--ink-3);
  font-style: italic;
  line-height: 1.75;
}

/* ── 今日三栏 ── */
.today {
  padding: var(--s-5) 0;
  border-bottom: 1px solid var(--ink-4);
}
.section-title {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--ink-3);
  padding-bottom: var(--s-2);
  margin-bottom: var(--s-4);
  border-bottom: 1px solid var(--ink-4);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--s-2);
}
.section-title .alt {
  font-family: var(--f-display);
  font-size: 1.4rem;
  letter-spacing: -0.01em;
  text-transform: none;
  color: var(--ink);
  font-weight: 400;
  font-style: italic;
  font-variation-settings: "opsz" 48;
}
.section-title .tail {
  color: var(--ink-4);
  font-variant-numeric: tabular-nums;
}

.columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}
.column {
  padding: var(--s-3) var(--s-3);
  border-right: 1px solid var(--ink-4);
  position: relative;
  min-height: 24rem;
  display: flex; flex-direction: column;
  transition: background var(--dur-2) var(--ease);
}
.column:first-child { padding-left: 0; }
.column:last-child { border-right: 0; padding-right: 0; }
.column:hover { background: var(--paper-2); }

.column-head {
  display: flex; align-items: baseline;
  gap: var(--s-1);
  margin-bottom: var(--s-2);
}
.column-num {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  color: var(--ink-3);
  letter-spacing: 0.1em;
}
.column-title {
  font-family: var(--f-display);
  font-size: 1.5rem;
  font-weight: 600;
  font-variation-settings: "opsz" 32, "SOFT" 40;
  line-height: 1.1;
  color: var(--ink);
  letter-spacing: -0.01em;
  margin-bottom: var(--s-1);
}
.column-meta {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  color: var(--ink-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--s-3);
  display: flex; align-items: center; gap: 6px;
  flex-wrap: wrap;
}
.column-meta .dot {
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--col);
}
.column-meta .col-date {
  font-variant-numeric: tabular-nums;
}
.column-meta .col-stale {
  display: inline-block;
  padding: 1px 6px;
  margin-left: 4px;
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  color: var(--ink-4);
  border: 1px solid var(--ink-4);
  border-radius: 2px;
  text-transform: none;
  cursor: help;
}
.column.stale .column-title {
  color: var(--ink-2);
}
.column.stale::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: repeating-linear-gradient(
    90deg,
    var(--ink-4) 0 4px,
    transparent 4px 8px
  );
  opacity: 0.4;
}
.column-preview {
  font-size: 0.93rem;
  line-height: 1.7;
  color: var(--ink-2);
  flex: 1;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 10;
  -webkit-box-orient: vertical;
  max-height: 18em;
  position: relative;
}
.column-preview::after {
  content: "";
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3em;
  background: linear-gradient(to bottom, transparent, var(--paper));
  pointer-events: none;
  transition: background var(--dur-2) var(--ease);
}
.column:hover .column-preview::after {
  background: linear-gradient(to bottom, transparent, var(--paper-2));
}
.column-link {
  margin-top: var(--s-3);
  font-family: var(--f-mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  background: none;
  display: inline-block;
  align-self: flex-start;
}
.column-link::after {
  content: " →";
  transition: transform var(--dur-2) var(--ease);
  display: inline-block;
}
.column-link:hover { background: none; color: var(--accent); }
.column-link:hover::after { transform: translateX(4px); }

.column.empty .column-preview {
  color: var(--ink-4);
  font-style: italic;
}

/* ── 近期板块 ── */
.recent { padding: var(--s-5) 0; }
.recent-list {
  display: flex; flex-direction: column;
  max-width: var(--read-w); margin: 0 auto;
}
.recent-item {
  display: grid;
  grid-template-columns: 8ch 3ch 1fr 1fr auto;
  gap: var(--s-2);
  align-items: baseline;
  padding: var(--s-2) 0;
  border-bottom: 1px solid var(--paper-3);
  transition: background var(--dur-1);
}
.recent-item:hover { background: var(--paper-2); padding-left: var(--s-1); padding-right: var(--s-1); }
.recent-item a { background: none; color: var(--ink); }
.recent-item a:hover { background: none; color: var(--accent); }
.recent-date {
  font-family: var(--f-mono);
  font-size: 0.78rem;
  color: var(--ink-3);
  letter-spacing: 0.04em;
  font-variant-numeric: tabular-nums;
}
.recent-icon { font-size: 1rem; text-align: center; }
.recent-cat {
  font-family: var(--f-display);
  font-weight: 500;
  font-size: 1rem;
  font-variation-settings: "opsz" 14;
}
.recent-excerpt {
  font-family: var(--f-body);
  font-size: 0.9rem;
  color: var(--ink-3);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}
.recent-size {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  color: var(--ink-4);
  font-variant-numeric: tabular-nums;
}
.see-all {
  display: block;
  text-align: center;
  margin-top: var(--s-3);
  padding-top: var(--s-3);
  border-top: 1px solid var(--ink-4);
  font-family: var(--f-mono);
  font-size: 0.78rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  background: none;
}
.see-all:hover { background: none; color: var(--link-h); }

/* ═══════════════════════════════════════════════
   归档页
   ═══════════════════════════════════════════════ */

.archive-hero {
  text-align: center;
  padding: var(--s-5) 0 var(--s-4);
  border-bottom: 3px double var(--ink);
}
.archive-hero h1 {
  font-family: var(--f-display);
  font-weight: 300;
  font-size: clamp(2.5rem, 8vw, 5rem);
  line-height: 1;
  font-variation-settings: "opsz" 144, "SOFT" 20;
  letter-spacing: -0.04em;
  font-style: italic;
  margin-bottom: var(--s-2);
}
.archive-meta {
  font-family: var(--f-mono);
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.archive-meta .sep { margin: 0 1em; color: var(--ink-4); }

.filter-bar {
  display: flex; justify-content: center;
  gap: 0;
  padding: var(--s-4) 0;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--ink-4);
  margin-bottom: var(--s-5);
}
.filter-btn {
  font-family: var(--f-mono);
  font-size: 0.78rem;
  padding: 0.5em 1.2em;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
  border: 1px solid transparent;
  border-bottom: 2px solid transparent;
  transition: all var(--dur-1);
  display: inline-flex; align-items: center; gap: 8px;
}
.filter-btn:hover { color: var(--ink); }
.filter-btn.active {
  color: var(--ink);
  border-bottom-color: var(--accent);
}
.filter-btn .filter-dot {
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--c, var(--ink-4));
}
.filter-btn .filter-count {
  color: var(--ink-4);
  font-size: 0.7rem;
  margin-left: 2px;
}

/* 月份分组 */
.archive-months { max-width: var(--wide-w); margin: 0 auto; padding: 0 var(--s-3); }
.archive-month {
  position: relative;
  margin-bottom: var(--s-5);
}
.month-label {
  position: sticky;
  top: 0;
  background: var(--paper);
  z-index: 10;
  padding: var(--s-3) 0 var(--s-2);
  border-bottom: 1px solid var(--ink);
  margin-bottom: var(--s-3);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  transition: background var(--dur-2) var(--ease);
}
.month-year {
  font-family: var(--f-mono);
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  color: var(--ink-3);
}
.month-name {
  font-family: var(--f-display);
  font-weight: 300;
  font-size: clamp(1.8rem, 5vw, 2.8rem);
  line-height: 1;
  font-style: italic;
  letter-spacing: -0.02em;
  font-variation-settings: "opsz" 96, "SOFT" 20;
  color: var(--ink);
}
.month-count {
  font-family: var(--f-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: var(--ink-4);
  text-transform: uppercase;
}

.day-group {
  display: grid;
  grid-template-columns: 4ch 5ch 1fr;
  gap: var(--s-3);
  padding: var(--s-2) 0;
  border-bottom: 1px dotted var(--paper-3);
  align-items: start;
}
.day-group.hidden { display: none; }
.day-num {
  font-family: var(--f-display);
  font-size: 1.75rem;
  font-weight: 300;
  line-height: 1;
  color: var(--ink);
  font-variation-settings: "opsz" 48;
  text-align: right;
  font-variant-numeric: tabular-nums;
  padding-top: 0.15em;
}
.day-weekday {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--ink-4);
  text-transform: uppercase;
  padding-top: 0.6em;
}
.day-entries {
  display: flex; flex-direction: column; gap: 4px;
}
.entry-line {
  display: grid;
  grid-template-columns: 1.5rem 1fr auto auto;
  gap: var(--s-2);
  padding: 4px var(--s-2) 4px 0;
  border-radius: 3px;
  transition: background var(--dur-1);
  align-items: baseline;
}
.entry-line.hidden { display: none; }
.entry-line:hover { background: var(--paper-2); }
.entry-line a {
  display: contents;
  color: inherit;
  background: none;
}
.entry-line:hover .entry-title { color: var(--accent); }
.entry-icon { text-align: center; font-size: 0.95rem; line-height: 1.5; }
.entry-title {
  font-family: var(--f-display);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--ink);
  font-variation-settings: "opsz" 18;
  line-height: 1.4;
  transition: color var(--dur-1);
}
.entry-title .entry-cat-tag {
  font-family: var(--f-mono);
  font-size: 0.68rem;
  padding: 2px 6px;
  color: var(--c, var(--ink-3));
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid currentColor;
  border-radius: 2px;
  margin-right: 6px;
  vertical-align: 1px;
  opacity: 0.7;
}
.entry-size {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  color: var(--ink-4);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
}
.entry-arrow {
  font-family: var(--f-mono);
  color: var(--ink-4);
  transition: transform var(--dur-2) var(--ease), color var(--dur-1);
  font-size: 0.9rem;
}
.entry-line:hover .entry-arrow {
  transform: translateX(4px);
  color: var(--accent);
}

/* ═══════════════════════════════════════════════
   单篇阅读页
   ═══════════════════════════════════════════════ */

.article {
  max-width: var(--read-w);
  margin: 0 auto;
  padding: 0 var(--s-3) var(--s-6);
}
.breadcrumb {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--ink-3);
  margin: var(--s-3) 0 var(--s-4);
  text-transform: uppercase;
  padding-bottom: var(--s-2);
  border-bottom: 1px solid var(--paper-3);
}
.breadcrumb a { color: var(--ink-3); background: none; }
.breadcrumb a:hover { color: var(--accent); background: none; }
.breadcrumb .sep { margin: 0 0.5em; color: var(--ink-4); }
.breadcrumb .current { color: var(--ink); }

.article-header {
  text-align: center;
  padding: var(--s-4) 0;
  margin-bottom: var(--s-5);
  border-bottom: 3px double var(--ink);
  position: relative;
}
.article-kicker {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--c-art, var(--accent));
  margin-bottom: var(--s-2);
  display: flex; align-items: center; justify-content: center; gap: 8px;
}
.article-kicker .kicker-dot {
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: currentColor;
}
.article-title {
  font-family: var(--f-display);
  font-weight: 400;
  font-size: clamp(2rem, 6vw, 3.25rem);
  line-height: 1.1;
  font-variation-settings: "opsz" 144, "SOFT" 30;
  letter-spacing: -0.02em;
  margin-bottom: var(--s-3);
  font-style: italic;
}
.article-date {
  display: inline-flex; flex-direction: column; align-items: center; gap: 0.2em;
  margin-top: var(--s-2);
}
.article-date-en {
  font-family: var(--f-mono);
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
}
.article-date-zh {
  font-family: var(--f-body);
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  color: var(--ink-4);
}

/* Prose */
.prose {
  font-size: 1.02rem;
  line-height: 1.85;
  color: var(--ink);
  hyphens: auto;
}
.prose > *:first-child { margin-top: 0; }
.prose > *:last-child { margin-bottom: 0; }
.prose h1, .prose h2, .prose h3, .prose h4 {
  font-family: var(--f-display);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin: 2.5em 0 0.7em;
  font-variation-settings: "opsz" 32, "SOFT" 30;
}
.prose h1 {
  font-size: 1.9em;
  font-weight: 400;
  font-style: italic;
  text-align: center;
  padding-bottom: 0.5em;
  border-bottom: 1px solid var(--paper-3);
  margin-top: 1.5em;
}
.prose h2 {
  font-size: 1.4em;
  padding-bottom: 0.3em;
  border-bottom: 1px solid var(--paper-3);
}
.prose h3 {
  font-size: 1.15em;
  color: var(--ink-2);
}
.prose h4 { font-size: 1em; color: var(--ink-2); }

.prose p { margin: 1.1em 0; }
.prose ul, .prose ol {
  list-style: revert;
  padding-left: 1.5em;
  margin: 1em 0;
}
.prose li { margin: 0.3em 0; }
.prose blockquote {
  border-left: 2px solid var(--accent);
  padding: 0.3em 0 0.3em 1.3em;
  margin: 1.5em 0;
  color: var(--ink-2);
  font-style: italic;
  font-family: var(--f-display);
  font-variation-settings: "opsz" 18;
}
.prose a {
  color: var(--link);
  background-image: linear-gradient(to right, var(--link), var(--link));
  background-size: 100% 1px;
  background-repeat: no-repeat;
  background-position: 0 95%;
}
.prose a:hover { color: var(--accent); background-image: linear-gradient(to right, var(--accent), var(--accent)); }

.prose code {
  font-family: var(--f-mono);
  font-size: 0.88em;
  background: var(--paper-2);
  padding: 0.1em 0.4em;
  border-radius: 3px;
  border: 1px solid var(--paper-3);
  color: var(--ink);
}
.prose pre {
  font-family: var(--f-mono);
  background: var(--paper-2);
  border: 1px solid var(--paper-3);
  border-radius: 4px;
  padding: 1rem 1.2rem;
  margin: 1.5em 0;
  overflow-x: auto;
  font-size: 0.84em;
  line-height: 1.65;
}
.prose pre code {
  background: none; padding: 0; border: 0;
}
.prose hr {
  border: 0;
  margin: 2.5em auto;
  text-align: center;
  height: 1em;
  width: 100%;
  position: relative;
}
.prose hr::before {
  content: "✦ ✦ ✦";
  font-size: 0.75em;
  letter-spacing: 1em;
  color: var(--ink-4);
}
.prose table {
  border-collapse: collapse;
  width: 100%;
  margin: 1.5em 0;
  font-size: 0.9em;
}
.prose th, .prose td {
  padding: 0.6em 0.8em;
  border-bottom: 1px solid var(--paper-3);
  text-align: left;
}
.prose th {
  font-family: var(--f-display);
  font-weight: 600;
  border-bottom: 2px solid var(--ink);
  font-size: 0.85em;
  letter-spacing: 0.04em;
}
.prose img {
  margin: 1.5em auto;
  border-radius: 2px;
}

/* 兄弟导航 */
.same-day {
  margin-top: var(--s-5);
  padding-top: var(--s-3);
  border-top: 1px solid var(--paper-3);
}
.same-day-label {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: var(--s-2);
}
.same-day-list {
  display: flex; gap: var(--s-3); flex-wrap: wrap;
}
.same-day-item {
  font-family: var(--f-display);
  font-weight: 500;
  font-size: 1rem;
  color: var(--ink);
  background: var(--paper-2);
  padding: 0.4em 0.9em;
  border: 1px solid var(--paper-3);
  border-radius: 3px;
  display: inline-flex; align-items: center; gap: 6px;
  background-image: none;
}
.same-day-item:hover {
  background: var(--accent); color: var(--paper);
  border-color: var(--accent);
}

/* 前后篇 */
.nav-pager {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-3);
  margin-top: var(--s-5);
  padding-top: var(--s-4);
  border-top: 3px double var(--ink);
}
.pager-slot { display: block; min-height: 4rem; }
.pager-slot a {
  display: block;
  background: none;
  color: inherit;
  padding: var(--s-2) 0;
}
.pager-dir {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-4);
  margin-bottom: 4px;
}
.pager-title {
  font-family: var(--f-display);
  font-weight: 500;
  font-size: 1.1rem;
  color: var(--ink);
  line-height: 1.3;
  font-variation-settings: "opsz" 18;
}
.pager-slot a:hover .pager-title { color: var(--accent); }
.pager-slot.right { text-align: right; }
.pager-slot.placeholder { visibility: hidden; }

/* 键盘提示 */
.kbd-hints {
  text-align: center;
  margin-top: var(--s-4);
  font-family: var(--f-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--ink-4);
  text-transform: uppercase;
}
.kbd {
  display: inline-block;
  font-family: var(--f-mono);
  font-size: 0.75rem;
  padding: 1px 6px;
  border: 1px solid var(--ink-4);
  border-radius: 2px;
  margin: 0 0.3em;
  background: var(--paper-2);
}

/* ═══════════════════════════════════════════════
   页脚
   ═══════════════════════════════════════════════ */
.colophon {
  border-top: 3px double var(--ink);
  padding: var(--s-4) 0 var(--s-3);
  margin-top: var(--s-5);
}
.colophon-inner {
  max-width: var(--wide-w); margin: 0 auto;
  padding: 0 var(--s-3);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--s-3);
  align-items: center;
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
}

/* 左下角 “返回个人主页” */
.home-back {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink-3);
  background: none;
  padding: 6px 12px 6px 0;
  transition: color var(--dur-1), transform var(--dur-2) var(--ease);
}
.home-back:hover {
  color: var(--accent);
  background: none;
  transform: translateX(-3px);
}
.back-arrow {
  font-size: 1.1rem;
  color: var(--accent);
  line-height: 1;
}
.back-label {
  display: flex;
  flex-direction: column;
  gap: 1px;
  line-height: 1.2;
  text-align: left;
}
.back-label-en {
  font-family: var(--f-mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: var(--ink-2);
  text-transform: lowercase;
}
.home-back:hover .back-label-en { color: var(--accent); }
.back-label-zh {
  font-family: var(--f-body);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--ink-4);
  text-transform: none;
}

.colophon-title {
  font-family: var(--f-display);
  font-size: 0.95rem;
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.005em;
  text-transform: none;
  color: var(--ink);
}
.colophon-meta {
  text-align: right;
  display: flex;
  flex-direction: column;
  gap: 2px;
  align-items: flex-end;
}
.colophon-meta .meta-label {
  color: var(--ink-4);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
}
.colophon-meta .meta-value {
  color: var(--ink-2);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.05em;
}

.colophon-icp {
  text-align: center;
  max-width: var(--wide-w); margin: 0 auto;
  padding: var(--s-3) var(--s-3) var(--s-3);
  font-family: var(--f-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--ink-4);
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.colophon-icp a {
  color: var(--ink-4);
  background: none;
}
.colophon-icp a:hover {
  color: var(--accent);
  background: none;
}
.colophon-icp .sep {
  color: var(--ink-4);
}

/* ═══════════════════════════════════════════════
   动画
   ═══════════════════════════════════════════════ */
@keyframes fade-up {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-up {
  animation: fade-up 0.6s var(--ease) both;
}
.fade-up.d1 { animation-delay: 0.05s; }
.fade-up.d2 { animation-delay: 0.15s; }
.fade-up.d3 { animation-delay: 0.28s; }
.fade-up.d4 { animation-delay: 0.42s; }
.fade-up.d5 { animation-delay: 0.58s; }

@media (prefers-reduced-motion: reduce) {
  .fade-up { animation: none; }
  * { animation-duration: 0s !important; transition-duration: 0s !important; }
}

/* ═══════════════════════════════════════════════
   404
   ═══════════════════════════════════════════════ */
.page-404 {
  text-align: center;
  padding: var(--s-7) 0;
  max-width: 36rem; margin: 0 auto;
}
.page-404-num {
  font-family: var(--f-display);
  font-weight: 200;
  font-size: clamp(6rem, 20vw, 12rem);
  line-height: 0.85;
  font-style: italic;
  letter-spacing: -0.05em;
  color: var(--accent);
  font-variation-settings: "opsz" 144, "SOFT" 100;
}
.page-404-msg {
  font-family: var(--f-display);
  font-size: 1.5rem;
  font-style: italic;
  color: var(--ink-2);
  margin: var(--s-2) 0 var(--s-3);
}
.page-404 p { color: var(--ink-3); margin-bottom: var(--s-3); }

/* ═══════════════════════════════════════════════
   响应式
   ═══════════════════════════════════════════════ */
@media (max-width: 820px) {
  html { font-size: 16px; }
  .main { padding: var(--s-4) 0 var(--s-5); }

  /* 移动端统一容器内边距：比桌面的 24px 更宽松，避免内容贴屏幕边 */
  .wide,
  .narrow,
  .archive-months {
    padding-left: 28px;
    padding-right: 28px;
  }
  .article {
    padding-left: 28px;
    padding-right: 28px;
  }
  .masthead-inner {
    font-size: 0.7rem;
    padding: var(--s-1) 28px var(--s-2);
  }
  .colophon-inner {
    padding-left: 28px;
    padding-right: 28px;
  }
  .colophon-icp {
    padding-left: 28px;
    padding-right: 28px;
  }

  .masthead-nav { gap: var(--s-2); }
  .masthead-title { font-size: 1rem; }

  .columns {
    grid-template-columns: 1fr;
  }
  .column {
    border-right: 0 !important;
    border-bottom: 1px solid var(--ink-4);
    padding: var(--s-3) 0 !important;
    min-height: auto;
  }
  .column:last-child { border-bottom: 0; }

  .recent-item {
    grid-template-columns: 7ch 2ch 1fr auto;
  }
  .recent-excerpt { display: none; }

  .day-group {
    grid-template-columns: 3ch 1fr;
    gap: var(--s-2);
  }
  .day-weekday { display: none; }
  .entry-line { grid-template-columns: 1.2rem 1fr auto; }
  .entry-size { display: none; }

  .article-title { font-size: 2rem; }
  .nav-pager { grid-template-columns: 1fr; gap: var(--s-2); }
  .pager-slot.right { text-align: left; }

  .colophon-inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--s-2);
  }
  .colophon-meta { text-align: center; align-items: center; }
  .home-back { justify-content: center; padding: 0; }
  .hero-kicker { font-size: 0.7rem; letter-spacing: 0.15em; }
}

@media (max-width: 480px) {
  .hero-date-en { font-size: 2rem; }
  .hero-date-zh { font-size: 1rem; letter-spacing: 0.2em; }
  .filter-btn { padding: 0.4em 0.8em; font-size: 0.7rem; }
  .filter-bar { gap: 0; }
  .filter-btn .filter-count { display: none; }
  .hero-meta { font-size: 0.68rem; letter-spacing: 0.1em; }
  .hero-meta .sep-soft { width: 0.4em; }
}