:root {
  --paper: #f2ebe0;
  --sheet: #fbf6ec;
  --ink: #1f1a14;
  --muted: #6a6154;
  --rule: #c9bba6;
  --rule-soft: #ddd2c0;
  --seal: #8f1d1d;
  --seal-ink: #f6efe2;
  --link: #6d1818;
  --shadow: none;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.65;
}

a {
  color: var(--link);
  text-underline-offset: 3px;
}

a:hover { color: var(--ink); }

button, input { font: inherit; }

.skip {
  position: absolute;
  left: -999px;
  top: 8px;
}

.skip:focus {
  left: 12px;
  background: var(--sheet);
  padding: 6px 10px;
  z-index: 30;
}

.wrap {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.masthead {
  background: var(--sheet);
  border-bottom: 1px solid var(--ink);
}

.masthead-row {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0;
  padding: 16px 0 0;
}

.brand-block {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding-bottom: 12px;
}

.wordmark {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
}

.seal {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  background: var(--seal);
  color: var(--seal-ink);
  font-family: "Songti SC", "Source Han Serif SC", "Noto Serif SC", "STSong", serif;
  font-size: 24px;
  line-height: 1;
  box-shadow: inset 0 0 0 2px rgba(246, 239, 226, 0.35);
}

.wordmark strong {
  display: block;
  font-family: "Songti SC", "Source Han Serif SC", "Noto Serif SC", "STSong", serif;
  font-size: 24px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.parent-link {
  color: var(--muted);
  text-decoration: none;
  font-size: 13px;
}

.parent-link:hover { color: var(--seal); }

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0 22px;
  font-size: 14px;
  border-top: 1px solid var(--ink);
  padding: 9px 0 8px;
}

.nav a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
}

.nav a:hover,
.nav a.is-on,
.nav a[aria-current="page"] {
  border-bottom-color: var(--seal);
}

.issue {
  padding: 28px 0 8px;
}

.issue-kicker {
  margin: 0 0 8px;
  color: var(--seal);
  letter-spacing: 0.18em;
  font-size: 12px;
}

.issue h1,
.article h1,
.preview-head h1 {
  margin: 0;
  font-family: "Songti SC", "Source Han Serif SC", "Noto Serif SC", "STSong", serif;
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1.25;
}

.issue h1 { font-size: clamp(28px, 4vw, 40px); }

.lede {
  max-width: 42em;
  color: var(--muted);
  margin: 12px 0 0;
}

.layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 36px;
  padding: 18px 0 56px;
  align-items: start;
}

.rail {
  position: sticky;
  top: 16px;
}

.find label,
.rail-block h2,
.group-head h2,
.colophon h2,
.related h2 {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.16em;
  font-weight: 600;
  color: var(--seal);
}

.find input {
  width: 100%;
  border: 0;
  border-bottom: 1px solid var(--ink);
  background: transparent;
  padding: 6px 0 8px;
  color: var(--ink);
  border-radius: 0;
}

.find input:focus {
  outline: none;
  border-bottom-color: var(--seal);
}

.rail-block {
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid var(--rule);
}

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

.rail-list a {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 5px 0;
  text-decoration: none;
  color: var(--ink);
  border-bottom: 1px dotted var(--rule-soft);
  font-size: 14px;
}

.rail-list a.is-on {
  color: var(--seal);
}

.rail-list .count {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.rail-note {
  margin: 20px 0 0;
  font-size: 13px;
  color: var(--muted);
}

.crumb {
  margin: 0 0 16px;
  font-size: 13px;
  color: var(--muted);
}

.crumb a { color: inherit; }

.featured {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  margin-bottom: 28px;
}

.featured:empty { display: none; }

.featured article {
  background: var(--sheet);
  padding: 16px 18px 14px;
  min-height: 118px;
}

.featured h3 {
  margin: 0 0 6px;
  font-size: 17px;
  font-family: "Songti SC", "Source Han Serif SC", "Noto Serif SC", "STSong", serif;
  font-weight: 600;
}

.featured h3 a {
  color: inherit;
  text-decoration: none;
}

.featured h3 a:hover { border-bottom: 1px solid var(--ink); }

.featured p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.group {
  margin: 0 0 28px;
}

.group-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  border-bottom: 1px solid var(--ink);
  padding-bottom: 6px;
  margin-bottom: 0;
}

.group-head h2 {
  color: var(--ink);
  letter-spacing: 0.12em;
  font-size: 13px;
}

.group-head a {
  font-size: 13px;
  color: var(--muted);
}

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

.rows li {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px 20px;
  padding: 11px 0;
  border-bottom: 1px solid var(--rule-soft);
}

.row-title {
  color: inherit;
  text-decoration: none;
  font-size: 16px;
}

.row-title:hover { color: var(--seal); }

.row-note {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 12px;
}

.row-note a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px dotted var(--rule);
}

.row-note a:hover { color: var(--seal); }

.row-tools {
  display: flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
}

.row-tools a,
.row-tools button {
  background: none;
  border: 0;
  padding: 0;
  color: var(--link);
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.empty {
  padding: 24px 0 48px;
  color: var(--muted);
}

.colophon {
  background: #eadfcf;
  border-top: 1px solid var(--ink);
  padding: 28px 0 36px;
  font-size: 14px;
}

.colophon.compact { padding: 14px 0; }

.colophon.compact .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
}

.colophon-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.colophon p { margin: 0 0 8px; color: var(--muted); }

.colophon a {
  color: var(--ink);
  margin-right: 12px;
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
}

.article {
  padding: 28px 0 56px;
  max-width: 760px;
}

.article h1 { font-size: 34px; }

.article h2 {
  margin: 32px 0 10px;
  font-size: 18px;
  font-family: "Songti SC", "Source Han Serif SC", "Noto Serif SC", "STSong", serif;
}

.plain {
  padding-left: 1.2em;
}

.plain li { margin: 8px 0; }

.preview-body {
  background: var(--paper);
}

.preview-shell { padding: 18px 0 40px; }

.preview-head {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: flex-end;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--ink);
}

.preview-head h1 { font-size: clamp(22px, 3vw, 30px); }

.preview-meta {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.preview-meta a { color: inherit; }

.preview-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

.preview-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  gap: 24px;
  align-items: start;
}

.frame-wrap {
  min-height: calc(100vh - 220px);
  background: #d8cbb6;
  border: 1px solid var(--ink);
}

.frame-wrap iframe {
  width: 100%;
  height: calc(100vh - 220px);
  min-height: 640px;
  border: 0;
  background: #fff;
}

.related {
  border-top: 1px solid var(--ink);
  padding-top: 10px;
}

.related ol {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
}

.related li {
  padding: 8px 0;
  border-bottom: 1px dotted var(--rule);
}

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

.related a:hover { color: var(--seal); }

.related .tiny {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 0 14px;
  border: 1px solid var(--seal);
  background: var(--seal);
  color: var(--seal-ink);
  text-decoration: none;
  cursor: pointer;
  border-radius: 1px;
}

.btn.ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--ink);
}

.btn:hover { filter: none; opacity: 0.92; }

.modal-back {
  position: fixed;
  inset: 0;
  background: rgba(31, 26, 20, 0.46);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 20;
}

.modal-back.open { display: flex; }

.modal {
  width: min(520px, 100%);
  background: var(--sheet);
  border: 1px solid var(--ink);
  padding: 22px;
}

.modal h2 {
  margin: 0 0 8px;
  font-size: 22px;
  font-family: "Songti SC", "Source Han Serif SC", "Noto Serif SC", "STSong", serif;
}

.modal p {
  margin: 0 0 14px;
  color: var(--muted);
}

.field {
  background: var(--paper);
  border: 1px solid var(--rule-soft);
  padding: 10px 12px;
  margin-bottom: 10px;
}

.field span {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 4px;
}

.field strong, .field a { word-break: break-all; }

.drive-block {
  border: 1px solid var(--rule);
  padding: 12px 14px 4px;
  margin-bottom: 10px;
}

.drive-block h3 {
  margin: 0 0 8px;
  font-size: 16px;
  font-family: "Songti SC", "Source Han Serif SC", "Noto Serif SC", "STSong", serif;
}

.drive-block .btn { margin-bottom: 12px; }

.drive-missing { margin-bottom: 12px; }

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 8px;
}

.status {
  margin: 0;
  padding: 28px;
  color: #4d453a;
}

@media (max-width: 860px) {
  .layout,
  .preview-head,
  .preview-split,
  .colophon-grid,
  .featured,
  .rows li {
    grid-template-columns: 1fr;
    display: flex;
    flex-direction: column;
    align-items: stretch;
  }

  .preview-head { align-items: flex-start; }

  .rail { position: static; }

  .layout { gap: 22px; }

  .frame-wrap iframe {
    min-height: 70vh;
    height: 70vh;
  }

  .row-tools { justify-content: flex-start; }
}