:root {
  --ink: #14161C;
  --paper: #F7F5F0;
  --orange: #E2442F;
  --blue: #2352D8;
  --yellow: #F0A500;
  --teal: #0F9B8E;
  --line: #D9D4C9;
  --ink-soft: #4A4E58;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --shell: 1140px;
  --body-w: 720px;
  --radius: 6px;
}

/* ========== base ========== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body.site-body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--blue);
  text-decoration: none;
}

a:hover,
a:focus-visible {
  text-decoration: underline;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  font-weight: 700;
  line-height: 1.3;
  color: var(--ink);
}

p {
  margin: 0 0 12px;
}

ul,
ol,
dl {
  margin: 0;
  padding: 0;
  list-style: none;
}

figure {
  margin: 0;
}

button {
  font: inherit;
  color: inherit;
  cursor: pointer;
}

time,
.mono,
.update-date,
.date-num,
.volume-range,
.step-index,
.field-index,
.issue-num,
.nf-entry-index,
.entry-index {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
}

:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

/* ========== layout ========== */
.site-header {
  background: #FFFFFF;
  border-bottom: 2px solid var(--ink);
  position: sticky;
  top: 0;
  z-index: 40;
}

.header-inner {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 64px;
}

.brand-mark {
  font-size: 19px;
  font-weight: 700;
  color: var(--ink);
  white-space: nowrap;
  padding: 6px 0;
}

.brand-mark:hover {
  text-decoration: none;
  color: var(--orange);
}

.site-nav {
  display: flex;
}

.site-nav ul {
  display: flex;
  align-items: stretch;
  gap: 2px;
}

.nav-item {
  display: flex;
  align-items: center;
  height: 64px;
  padding: 0 14px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  border-top: 2px solid transparent;
  white-space: nowrap;
}

.nav-item:hover {
  text-decoration: none;
  border-top-color: var(--ink);
  background: #F1EEE7;
}

.nav-item.is-current {
  background: var(--orange);
  color: #FFFFFF;
  border-top-color: var(--ink);
  box-shadow: inset 0 -3px 0 rgba(20, 22, 28, 0.35);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  background: #FFFFFF;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  position: relative;
}

.menu-toggle::before,
.menu-toggle::after {
  content: "";
  position: absolute;
  left: 10px;
  right: 10px;
  height: 2px;
  background: var(--ink);
}

.menu-toggle::before {
  top: 15px;
}

.menu-toggle::after {
  top: 25px;
}

.mobile-nav {
  border-top: 2px solid var(--ink);
  background: #FFFFFF;
}

.mobile-nav[hidden] {
  display: none;
}

.mobile-nav ul {
  display: flex;
  flex-direction: column;
}

.mobile-nav a {
  display: flex;
  align-items: center;
  min-height: 48px;
  padding: 0 24px;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  border-bottom: 1px solid var(--line);
}

.mobile-nav a:hover {
  text-decoration: none;
  background: #F1EEE7;
}

.mobile-nav a.is-current {
  background: var(--orange);
  color: #FFFFFF;
}

.site-main {
  display: block;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 24px;
}

.home-main {
  padding-bottom: 0;
}

.inner-main {
  padding-top: 20px;
  padding-bottom: 48px;
}

/* ========== breadcrumb + page header ========== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--ink-soft);
  padding: 4px 0 16px;
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--ink-soft);
}

.breadcrumb a:hover {
  color: var(--orange);
}

.breadcrumb-sep {
  color: var(--line);
}

.breadcrumb-current {
  color: var(--ink);
  font-weight: 600;
}

.page-header {
  border-left: 6px solid var(--orange);
  padding: 4px 0 4px 16px;
  margin-bottom: 14px;
}

.page-title {
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 700;
}

.page-heading {
  margin-bottom: 26px;
  max-width: var(--body-w);
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.heading-bar,
.heading-rule {
  display: block;
  width: 6px;
  min-height: 34px;
  align-self: stretch;
  background: var(--blue);
  flex: 0 0 6px;
}

.heading-rule {
  background: var(--teal);
}

.heading-text,
.heading-body {
  max-width: var(--body-w);
}

.heading-desc,
.heading-note,
.heading-lead,
.page-duty,
.page-lead {
  font-size: 15px;
  color: var(--ink-soft);
  margin: 0;
}

.page-lead {
  max-width: var(--body-w);
}

/* ========== section shared ========== */
.section-head {
  border-bottom: 3px solid var(--ink);
  padding-bottom: 10px;
  margin-bottom: 20px;
}

.section-head h2,
.section-title {
  font-size: 21px;
}

.section-desc,
.section-note {
  margin: 6px 0 0;
  font-size: 14px;
  color: var(--ink-soft);
  max-width: var(--body-w);
}

.section-more {
  margin: 16px 0 0;
  font-size: 14px;
}

.inline-link {
  color: var(--blue);
  font-weight: 600;
  border-bottom: 2px solid var(--blue);
  padding-bottom: 1px;
}

.inline-link:hover {
  text-decoration: none;
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.link-bracket {
  display: inline-block;
  font-weight: 600;
  color: var(--blue);
}

.link-bracket::before {
  content: "[";
  color: var(--line);
}

.link-bracket::after {
  content: "]";
  color: var(--line);
}

.link-bracket:hover {
  text-decoration: none;
  color: var(--orange);
}

/* ========== footer ========== */
.site-footer {
  background: #FFFFFF;
  border-top: 3px solid var(--ink);
  margin-top: 40px;
}

.footer-inner {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 34px 24px 26px;
}

.footer-cols {
  display: grid;
  grid-template-columns: 1.2fr 1.2fr 1fr;
  gap: 28px;
}

.footer-title {
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 10px;
  padding-bottom: 6px;
  border-bottom: 2px solid var(--ink);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-col li {
  font-size: 14px;
  color: var(--ink-soft);
}

.footer-col a {
  color: var(--ink);
}

.footer-col a:hover {
  color: var(--orange);
}

.footer-col strong {
  color: var(--ink);
  font-weight: 600;
}

.footer-boundary {
  margin: 26px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--ink-soft);
}

.footer-sign {
  margin: 10px 0 0;
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
}

/* ========== components ========== */
.tag-chip {
  display: inline-block;
  padding: 2px 9px;
  font-size: 13px;
  font-weight: 500;
  color: var(--blue);
  background: #EDF1FD;
  border: 1px solid #C6D2F7;
  border-radius: var(--radius);
  white-space: nowrap;
}

.tag-slice {
  color: var(--ink);
  background: #FBEEDC;
  border-color: #EFD6A6;
}

.status {
  display: inline-block;
  padding: 2px 9px;
  font-size: 12px;
  font-weight: 600;
  border-radius: var(--radius);
  white-space: nowrap;
}

.status-new {
  color: #FFFFFF;
  background: var(--teal);
}

.status-continue {
  color: var(--ink);
  background: #FBEEDC;
  border: 1px solid #EFD6A6;
}

.status-pause {
  color: var(--ink-soft);
  background: #EDEAE2;
  border: 1px solid var(--line);
}

.entry-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.section-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.section-nav a {
  display: inline-block;
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  background: #FFFFFF;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
}

.section-nav a:hover {
  text-decoration: none;
  background: var(--orange);
  color: #FFFFFF;
}

/* ========== index: hero announcement ========== */
.hero-announcement {
  border-bottom: 3px solid var(--ink);
  padding-bottom: 30px;
  margin-bottom: 34px;
}

.announce-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 18px;
  background: var(--yellow);
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  padding: 10px 14px;
  margin-bottom: 26px;
  font-size: 14px;
}

.announce-status {
  font-weight: 700;
  color: var(--ink);
}

.announce-link {
  color: var(--ink);
  font-weight: 600;
  border-bottom: 2px solid var(--ink);
}

.announce-link:hover {
  text-decoration: none;
  color: #FFFFFF;
  border-bottom-color: #FFFFFF;
}

.hero-body {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 30px;
  align-items: start;
}

.hero-text h1 {
  font-size: clamp(28px, 4.4vw, 42px);
  margin-bottom: 14px;
}

.hero-lead {
  font-size: 16px;
  color: var(--ink-soft);
  max-width: 520px;
  margin-bottom: 22px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 18px;
  font-size: 14px;
  font-weight: 700;
  border-radius: var(--radius);
}

.btn-primary {
  background: var(--orange);
  color: #FFFFFF;
  border: 2px solid var(--ink);
}

.btn-primary:hover {
  text-decoration: none;
  background: var(--ink);
}

.btn-secondary {
  background: #FFFFFF;
  color: var(--ink);
  border: 2px solid var(--ink);
}

.btn-secondary:hover {
  text-decoration: none;
  background: var(--yellow);
}

.hero-media {
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  overflow: hidden;
  background: #FFFFFF;
}

.hero-media img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

/* ========== index: genre matrix ========== */
.genre-tag-matrix {
  border-bottom: 3px solid var(--ink);
  padding-bottom: 34px;
  margin-bottom: 34px;
}

.matrix-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.genre-tag-matrix .genre-block {
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 16px 16px 18px;
  background: #FFFFFF;
}

.genre-tag-matrix .genre-name {
  font-size: 17px;
  margin-bottom: 10px;
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.genre-prefix {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: #FFFFFF;
  background: var(--blue);
  padding: 1px 6px;
  border-radius: 3px;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 10px;
}

.genre-range {
  margin: 0;
  font-size: 13px;
  color: var(--ink-soft);
}

/* ========== index: cover wall ========== */
.cover-wall {
  border-bottom: 3px solid var(--ink);
  padding-bottom: 34px;
  margin-bottom: 34px;
}

.cover-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.cover-card {
  background: #FFFFFF;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.18s ease, border-color 0.18s ease;
}

.cover-card:hover {
  transform: translateY(-3px);
  border-color: var(--orange);
}

.cover-link {
  display: block;
  color: inherit;
}

.cover-link:hover {
  text-decoration: none;
}

.cover-link img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  border-bottom: 2px solid var(--ink);
  background: #EDEAE2;
}

.cover-title {
  font-size: 16px;
  padding: 12px 14px 6px;
}

.cover-card:hover .cover-title {
  color: var(--orange);
}

.cover-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 0 14px 8px;
  margin: 0;
}

.cover-range {
  margin: 0;
  padding: 0 14px 14px;
  font-size: 13px;
  color: var(--ink-soft);
  font-family: var(--mono);
  letter-spacing: 0.04em;
}

/* ========== index: recent updates ========== */
.recent-updates {
  border-bottom: 3px solid var(--ink);
  padding-bottom: 30px;
  margin-bottom: 34px;
}

.update-list {
  border-top: 1px solid var(--line);
}

.update-row {
  display: grid;
  grid-template-columns: 120px 130px 1fr 150px;
  gap: 14px;
  align-items: center;
  padding: 12px 4px;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}

.update-date {
  color: var(--teal);
  font-weight: 600;
}

.update-tag {
  font-size: 13px;
  font-weight: 600;
  color: var(--blue);
}

.update-item {
  font-weight: 600;
}

.update-range {
  font-size: 13px;
  color: var(--ink-soft);
  text-align: right;
}

/* ========== index: reading issue entry ========== */
.reading-issue-entry {
  border-bottom: 3px solid var(--ink);
  padding-bottom: 30px;
  margin-bottom: 34px;
}

.issue-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.reading-issue-entry .issue-block {
  background: #FFFFFF;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.reading-issue-entry .issue-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  font-size: 14px;
  font-weight: 700;
  color: #FFFFFF;
  background: var(--orange);
  border-radius: 4px;
}

.reading-issue-entry .issue-name {
  font-size: 15px;
}

.reading-issue-entry .issue-hint {
  margin: 0;
  font-size: 13px;
  color: var(--ink-soft);
}

/* ========== index: ranking strip ========== */
.ranking-strip {
  border-bottom: 3px solid var(--ink);
  padding-bottom: 30px;
  margin-bottom: 34px;
}

.rank-columns {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.rank-band {
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  border-top-width: 8px;
  padding: 14px 16px 16px;
  background: #FFFFFF;
}

.rank-band-a {
  border-top-color: var(--orange);
}

.rank-band-b {
  border-top-color: var(--blue);
}

.rank-band-c {
  border-top-color: var(--teal);
}

.rank-name {
  font-size: 16px;
  margin-bottom: 4px;
}

.rank-basis {
  font-size: 13px;
  color: var(--ink-soft);
  margin-bottom: 10px;
}

.rank-list {
  display: flex;
  flex-direction: column;
  gap: 7px;
  border-top: 1px solid var(--line);
  padding-top: 10px;
}

.rank-list li {
  font-size: 14px;
}

.rank-list a {
  color: var(--ink);
  font-weight: 500;
}

.rank-list a:hover {
  color: var(--orange);
}

/* ========== index: guide notes band ========== */
.guide-notes-band {
  padding-bottom: 34px;
}

.band-columns {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.band-col {
  background: #FFFFFF;
  border: 2px solid var(--ink);
  border-left-width: 6px;
  border-radius: var(--radius);
  padding: 16px;
}

.guide-notes-band .band-col:nth-child(1) {
  border-left-color: var(--orange);
}

.guide-notes-band .band-col:nth-child(2) {
  border-left-color: var(--blue);
}

.guide-notes-band .band-col:nth-child(3) {
  border-left-color: var(--teal);
}

.band-title {
  font-size: 16px;
  margin-bottom: 8px;
}

.band-text {
  font-size: 14px;
  color: var(--ink-soft);
  margin-bottom: 12px;
}

/* ========== index: related links ========== */
.related-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  border-top: 3px solid var(--ink);
  padding: 18px 0 26px;
}

.related-links-label {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink);
}

.related-links-item {
  font-size: 14px;
  font-weight: 600;
  color: var(--blue);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 6px 12px;
  background: #FFFFFF;
}

.related-links-item:hover {
  text-decoration: none;
  color: #FFFFFF;
  background: var(--blue);
  border-color: var(--blue);
}

/* ========== inner: two column layout ========== */
.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 32px;
  align-items: start;
}

.layout-main {
  min-width: 0;
}

.layout-aside {
  min-width: 0;
}

.aside-block {
  background: #FFFFFF;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 20px;
}

.aside-block h2,
.aside-title {
  font-size: 16px;
  margin-bottom: 10px;
  padding-bottom: 6px;
  border-bottom: 2px solid var(--ink);
}

.aside-block p {
  font-size: 14px;
  color: var(--ink-soft);
}

.aside-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 8px;
}

.aside-list li {
  font-size: 13px;
  color: var(--ink-soft);
}

.aside-list strong {
  display: block;
  color: var(--ink);
  font-size: 14px;
  font-weight: 600;
}

.aside-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 10px;
}

.aside-links a {
  font-size: 14px;
  font-weight: 600;
  color: var(--blue);
}

.aside-links a:hover {
  color: var(--orange);
}

/* ========== genres ========== */
.genre-list {
  min-width: 0;
}

.media-figure {
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  overflow: hidden;
  background: #FFFFFF;
  margin-bottom: 22px;
}

.media-figure img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.media-figure figcaption {
  padding: 10px 14px;
  font-size: 13px;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
}

.genre-jump {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  background: #FFFFFF;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  padding: 12px 14px;
  margin-bottom: 24px;
}

.jump-label {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.genre-jump ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.genre-jump a {
  display: inline-block;
  padding: 5px 11px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.genre-jump a:hover {
  text-decoration: none;
  color: #FFFFFF;
  background: var(--blue);
  border-color: var(--blue);
}

.genre-list .genre-block {
  background: #FFFFFF;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 22px;
}

.genre-head {
  border-bottom: 2px solid var(--ink);
  padding-bottom: 10px;
  margin-bottom: 12px;
}

.genre-head h2 {
  font-size: 20px;
  margin-bottom: 6px;
}

.genre-audience {
  margin: 0;
  font-size: 14px;
  color: var(--ink-soft);
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.tag-entries {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.tag-entries h3 {
  font-size: 15px;
  padding-bottom: 6px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--line);
  color: var(--blue);
}

.genre-list .entry-list li {
  padding: 5px 0;
  font-size: 14px;
  border-bottom: 1px dashed var(--line);
}

.entry-name {
  font-weight: 600;
  color: var(--ink);
}

.entry-range {
  display: block;
  font-size: 12px;
  color: var(--ink-soft);
  font-family: var(--mono);
  letter-spacing: 0.04em;
}

/* ========== update schedule ========== */
.page-visual {
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  overflow: hidden;
  background: #FFFFFF;
  margin-bottom: 26px;
}

.page-visual img {
  width: 100%;
  aspect-ratio: 21 / 9;
  object-fit: cover;
}

.page-visual figcaption {
  padding: 10px 14px;
  font-size: 13px;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
}

.schedule-by-date {
  margin-bottom: 34px;
}

.date-group {
  background: #FFFFFF;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  margin-bottom: 14px;
  overflow: hidden;
}

.date-group-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  cursor: pointer;
  background: #F1EEE7;
  border-bottom: 2px solid var(--ink);
  list-style: none;
  min-height: 48px;
}

.date-group-head::-webkit-details-marker {
  display: none;
}

.date-group-head::after {
  content: "展开";
  margin-left: auto;
  font-size: 12px;
  font-weight: 700;
  color: var(--ink-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2px 8px;
  background: #FFFFFF;
}

.date-group[open] .date-group-head::after {
  content: "收起";
  color: #FFFFFF;
  background: var(--ink);
  border-color: var(--ink);
}

.date-num {
  font-size: 15px;
  font-weight: 700;
  color: var(--teal);
}

.date-week {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-soft);
}

.date-count {
  font-size: 12px;
  color: var(--ink);
  background: var(--yellow);
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  padding: 1px 8px;
}

.update-rows {
  padding: 4px 16px 12px;
}

.schedule-by-date .update-row {
  display: grid;
  grid-template-columns: 130px minmax(0, 1fr) 130px 90px;
  gap: 14px;
  align-items: center;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}

.schedule-by-date .update-row:last-child {
  border-bottom: 0;
}

.update-title a {
  font-weight: 600;
  color: var(--ink);
}

.update-title a:hover {
  color: var(--orange);
}

.volume-range {
  font-size: 13px;
  color: var(--ink-soft);
}

/* ========== schedule fields ========== */
.schedule-fields {
  margin-bottom: 34px;
}

.field-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

.schedule-fields .field-item {
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-left: 4px solid var(--blue);
  border-radius: var(--radius);
  padding: 12px 14px;
}

.schedule-fields .field-item dt {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 4px;
}

.schedule-fields .field-item dd {
  margin: 0;
  font-size: 13px;
  color: var(--ink-soft);
}

.status-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  align-items: center;
  font-size: 13px;
  color: var(--ink-soft);
}

.status-legend li {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ========== schedule compare ========== */
.schedule-compare {
  margin-bottom: 10px;
}

.compare-cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.compare-col {
  background: #FFFFFF;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  padding: 16px;
}

.compare-col h3 {
  font-size: 16px;
  margin-bottom: 8px;
  padding-bottom: 6px;
  border-bottom: 2px solid var(--ink);
}

.compare-col p {
  font-size: 14px;
  color: var(--ink-soft);
}

.compare-col ul {
  display: flex;
  flex-direction: column;
  gap: 7px;
  margin-top: 10px;
}

.compare-col li {
  font-size: 14px;
  padding-left: 14px;
  position: relative;
}

.compare-col li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background: var(--orange);
}

/* ========== reading issues ========== */
.issue-tree {
  min-width: 0;
}

.issue-tree .issue-block {
  background: #FFFFFF;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 18px;
}

.issue-title {
  font-size: 18px;
  margin-bottom: 6px;
}

.issue-desc {
  font-size: 14px;
  color: var(--ink-soft);
  margin-bottom: 12px;
}

.issue-figure {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 14px;
}

.issue-figure img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.issue-figure figcaption {
  padding: 8px 12px;
  font-size: 13px;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
}

.issue-detail {
  border-top: 2px solid var(--ink);
}

.issue-detail summary {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 8px 0;
  font-size: 14px;
  font-weight: 700;
  color: var(--blue);
  cursor: pointer;
  list-style: none;
}

.issue-detail summary::-webkit-details-marker {
  display: none;
}

.issue-detail summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--mono);
  font-size: 18px;
  line-height: 1;
  color: var(--ink);
}

.issue-detail[open] summary::after {
  content: "–";
}

.issue-detail-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 18px;
  padding: 6px 0 14px;
}

.issue-basis,
.issue-next {
  font-size: 14px;
  color: var(--ink-soft);
  min-width: 0;
}

.issue-basis {
  border-left: 4px solid var(--yellow);
  padding-left: 12px;
}

.issue-next {
  border-left: 4px solid var(--teal);
  padding-left: 12px;
}

.numbering-reference {
  min-width: 0;
}

.numbering-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.numbering-list li {
  border-bottom: 1px dashed var(--line);
  padding-bottom: 8px;
  font-size: 13px;
  color: var(--ink-soft);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.numbering-code {
  font-weight: 700;
  color: var(--ink);
}

.troubleshoot-flow {
  margin-top: 34px;
  padding-top: 24px;
  border-top: 3px solid var(--ink);
}

.troubleshoot-flow h2 {
  font-size: 20px;
  margin-bottom: 8px;
}

.troubleshoot-flow > p {
  font-size: 14px;
  color: var(--ink-soft);
  max-width: var(--body-w);
  margin-bottom: 18px;
}

.flow-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  counter-reset: flow;
}

.flow-steps li {
  background: #FFFFFF;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  padding: 16px;
  counter-increment: flow;
}

.flow-steps li h3 {
  font-size: 16px;
  margin-bottom: 8px;
  padding-left: 34px;
  position: relative;
  min-height: 26px;
}

.flow-steps li h3::before {
  content: counter(flow);
  position: absolute;
  left: 0;
  top: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 13px;
  color: #FFFFFF;
  background: var(--orange);
  border-radius: 4px;
}

.flow-steps li p {
  margin: 0;
  font-size: 14px;
  color: var(--ink-soft);
}

/* ========== reading guide ========== */
.path-steps {
  margin-bottom: 34px;
}

.path-figure {
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  overflow: hidden;
  background: #FFFFFF;
  margin: 18px 0 22px;
}

.path-figure img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.path-figure figcaption {
  padding: 10px 14px;
  font-size: 13px;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
}

.step-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  border-top: 2px solid var(--ink);
  border-left: 2px solid var(--ink);
}

.step-item {
  border-right: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  padding: 16px;
  background: #FFFFFF;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.step-item .step-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  font-size: 14px;
  font-weight: 700;
  color: #FFFFFF;
  background: var(--blue);
  border-radius: 4px;
}

.step-item h3 {
  font-size: 16px;
}

.step-item p {
  margin: 0;
  font-size: 14px;
  color: var(--ink-soft);
}

.step-item .link-bracket {
  margin-top: auto;
  font-size: 14px;
}

.progress-practices {
  margin-bottom: 34px;
}

.practice-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 18px;
}

.practice-card {
  background: #FFFFFF;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  border-top-width: 6px;
  border-top-color: var(--teal);
  padding: 16px;
}

.practice-card h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.practice-for {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--ink);
  background: #EDEAE2;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2px 9px;
  margin-bottom: 10px;
}

.practice-card p {
  font-size: 14px;
  color: var(--ink-soft);
  margin-bottom: 8px;
}

.practice-step {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--teal);
  margin: 0;
}

.when-to-issues {
  margin-bottom: 34px;
}

.when-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 18px;
}

.when-item {
  background: #FFFFFF;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  padding: 16px;
}

.when-item h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.when-item p {
  font-size: 14px;
  color: var(--ink-soft);
  margin-bottom: 10px;
}

.further-reading {
  padding-top: 24px;
  border-top: 3px solid var(--ink);
}

.further-reading > .section-note {
  margin-bottom: 16px;
}

.further-block {
  margin-bottom: 18px;
}

.further-block h3 {
  font-size: 16px;
  margin-bottom: 8px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--line);
  color: var(--blue);
}

.further-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.further-list li {
  font-size: 14px;
}

/* ========== editorial notes ========== */
.page-editorial-notes .page-heading {
  margin-bottom: 22px;
}

.page-heading-inner {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  max-width: var(--body-w);
}

.content-block {
  background: #FFFFFF;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 22px;
}

.block-head {
  border-bottom: 2px solid var(--ink);
  padding-bottom: 10px;
  margin-bottom: 14px;
}

.block-head h2 {
  font-size: 19px;
  margin-bottom: 6px;
}

.block-intro {
  margin: 0;
  font-size: 14px;
  color: var(--ink-soft);
}

.field-diagram {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 16px;
}

.field-diagram img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.field-diagram figcaption {
  padding: 8px 12px;
  font-size: 13px;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
}

.block-name-structure .field-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 14px;
}

.block-name-structure .field-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  border-bottom: 1px dashed var(--line);
  padding-bottom: 10px;
}

.block-name-structure .field-index {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  font-size: 13px;
  font-weight: 700;
  color: #FFFFFF;
  background: var(--blue);
  border-radius: 4px;
}

.block-name-structure .field-body {
  min-width: 0;
  font-size: 14px;
  color: var(--ink-soft);
}

.block-name-structure .field-body strong {
  display: block;
  font-size: 14px;
  color: var(--ink);
  margin-bottom: 3px;
}

.field-example {
  font-size: 14px;
  color: var(--ink-soft);
  background: #F1EEE7;
  border-left: 4px solid var(--yellow);
  border-radius: var(--radius);
  padding: 10px 14px;
  margin: 0;
}

.field-example .mono {
  color: var(--ink);
  font-weight: 600;
}

.boundary-cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.boundary-col {
  border-radius: var(--radius);
  padding: 14px;
  border: 1px solid var(--line);
}

.boundary-in {
  border-left: 5px solid var(--teal);
  background: #F2FAF9;
}

.boundary-out {
  border-left: 5px solid var(--orange);
  background: #FDF2F0;
}

.boundary-col h3 {
  font-size: 15px;
  margin-bottom: 10px;
}

.boundary-col ul {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.boundary-col li {
  font-size: 14px;
  color: var(--ink-soft);
  padding-left: 14px;
  position: relative;
}

.boundary-col li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background: var(--ink);
}

.block-rules .rule-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.block-rules .rule-item {
  border-bottom: 1px dashed var(--line);
  padding-bottom: 10px;
}

.block-rules .rule-item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.block-rules .rule-item h3 {
  font-size: 14px;
  margin-bottom: 4px;
  color: var(--ink);
}

.block-rules .rule-item p {
  margin: 0;
  font-size: 13px;
  color: var(--ink-soft);
}

.block-related .related-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.block-related .related-list a {
  font-size: 14px;
  font-weight: 600;
  color: var(--blue);
}

.block-related .related-list a:hover {
  color: var(--orange);
}

/* ========== not found (inner) ========== */
.nf-note {
  max-width: var(--body-w);
  margin-bottom: 30px;
}

.nf-code {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #FFFFFF;
  background: var(--ink);
  display: inline-block;
  padding: 2px 10px;
  border-radius: var(--radius);
  margin-bottom: 12px;
}

.nf-note-lead {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
}

.nf-note-note {
  font-size: 14px;
  color: var(--ink-soft);
}

.content-media-inline {
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  overflow: hidden;
  background: #FFFFFF;
  margin-top: 16px;
}

.content-media-inline img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.content-media-inline figcaption {
  padding: 10px 14px;
  font-size: 13px;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
}

.nf-entries {
  margin-bottom: 30px;
}

.nf-entries h2,
.nf-recover h2 {
  font-size: 20px;
  border-bottom: 3px solid var(--ink);
  padding-bottom: 10px;
  margin-bottom: 10px;
}

.nf-entries-lead,
.nf-recover-lead {
  font-size: 14px;
  color: var(--ink-soft);
  max-width: var(--body-w);
  margin-bottom: 16px;
}

.nf-entry-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.nf-entry {
  background: #FFFFFF;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  padding: 16px;
}

.nf-entry .nf-entry-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  font-size: 13px;
  font-weight: 700;
  color: #FFFFFF;
  background: var(--orange);
  border-radius: 4px;
  margin-bottom: 10px;
}

.nf-entry-name {
  font-size: 16px;
  margin-bottom: 6px;
}

.nf-entry-name a {
  color: var(--ink);
}

.nf-entry-name a:hover {
  color: var(--orange);
}

.nf-entry-desc {
  margin: 0;
  font-size: 14px;
  color: var(--ink-soft);
}

.nf-recover-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.nf-recover-item {
  border-left: 5px solid var(--blue);
  background: #FFFFFF;
  border-radius: var(--radius);
  padding: 14px 16px;
}

.nf-recover-name {
  font-size: 15px;
  margin-bottom: 6px;
}

.nf-recover-desc {
  margin: 0;
  font-size: 14px;
  color: var(--ink-soft);
}

/* ========== 404 page ========== */
.error-main {
  padding-top: 40px;
  padding-bottom: 60px;
}

.error-inner {
  max-width: 720px;
}

.error-inner h1 {
  font-size: clamp(26px, 4vw, 38px);
  border-left: 6px solid var(--orange);
  padding-left: 16px;
  margin-bottom: 14px;
}

.error-note {
  font-size: 15px;
  color: var(--ink-soft);
  margin-bottom: 30px;
}

.error-entries {
  margin-bottom: 30px;
}

.error-entries h2,
.error-recover h2 {
  font-size: 20px;
  border-bottom: 3px solid var(--ink);
  padding-bottom: 10px;
  margin-bottom: 16px;
}

.error-main .entry-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.error-main .entry-item {
  background: #FFFFFF;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  padding: 14px;
}

.error-main .entry-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  font-size: 13px;
  font-weight: 700;
  color: #FFFFFF;
  background: var(--orange);
  border-radius: 4px;
  margin-bottom: 8px;
}

.entry-link {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 6px;
}

.entry-link:hover {
  color: var(--orange);
}

.entry-desc {
  margin: 0;
  font-size: 13px;
  color: var(--ink-soft);
}

.error-recover p {
  font-size: 14px;
  color: var(--ink-soft);
  max-width: var(--body-w);
}

.error-home {
  margin-top: 26px;
}

.home-button {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 20px;
  font-size: 14px;
  font-weight: 700;
  color: #FFFFFF;
  background: var(--orange);
  border: 2px solid var(--ink);
  border-radius: var(--radius);
}

.home-button:hover {
  text-decoration: none;
  background: var(--ink);
}

/* ========== responsive ========== */
@media (max-width: 900px) {
  .header-inner {
    min-height: 58px;
    padding: 0 18px;
  }

  .brand-mark {
    font-size: 17px;
  }

  .site-nav {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  .site-main {
    padding: 0 18px;
  }

  .hero-body {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-media img {
    aspect-ratio: 16 / 9;
  }

  .matrix-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cover-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .issue-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .rank-columns,
  .band-columns {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }

  .tag-entries {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .step-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .practice-grid,
  .flow-steps,
  .nf-entry-list,
  .error-main .entry-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .schedule-by-date .update-row {
    grid-template-columns: 110px minmax(0, 1fr) 110px 80px;
    gap: 10px;
  }

  .update-row {
    grid-template-columns: 100px 110px minmax(0, 1fr) 130px;
    gap: 10px;
  }
}

@media (max-width: 640px) {
  body.site-body {
    font-size: 15px;
  }

  .header-inner {
    padding: 0 14px;
  }

  .site-main {
    padding: 0 14px;
  }

  .footer-inner {
    padding: 26px 14px 22px;
  }

  .matrix-grid,
  .cover-grid,
  .issue-grid,
  .tag-entries,
  .step-list,
  .practice-grid,
  .flow-steps,
  .when-grid,
  .compare-cols,
  .issue-detail-body,
  .boundary-cols,
  .field-list,
  .nf-entry-list,
  .nf-recover-list,
  .error-main .entry-list,
  .footer-cols {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-primary,
  .btn-secondary {
    justify-content: center;
  }

  .update-row,
  .schedule-by-date .update-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
    align-items: start;
  }

  .update-range,
  .schedule-by-date .volume-range {
    text-align: left;
  }

  .date-group-head {
    gap: 8px;
  }

  .step-list {
    border-left: 0;
  }

  .step-item {
    border-left: 2px solid var(--ink);
  }

  .related-links {
    padding-bottom: 20px;
  }

  .section-nav ul {
    flex-direction: column;
    align-items: stretch;
  }

  .section-nav a {
    text-align: center;
  }
}